[36/51] [partial] TAJO-22: The package prefix should be org.apache.tajo. (DaeMyung Kang via hyunsik)

[hy...@apache.org]

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/org/apache/tajo/datum/TestDatum.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/org/apache/tajo/datum/TestDatum.java b/tajo-common/src/test/java/org/apache/tajo/datum/TestDatum.java
new file mode 100644
index 0000000..9a0b654
--- /dev/null
+++ b/tajo-common/src/test/java/org/apache/tajo/datum/TestDatum.java
@@ -0,0 +1,314 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.tajo.datum;
+
+import org.junit.Test;
+import org.apache.tajo.common.TajoDataTypes.Type;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+public class TestDatum {
+
+	@Test
+	public final void testPlusDatumDatum() {
+		Datum x;
+		Datum y;
+		Datum z;
+		
+		x = DatumFactory.createInt4(1);
+		y = DatumFactory.createInt4(2);
+		z = x.plus(y);
+		assertEquals(z.type(), Type.INT4);
+		assertEquals(z.asInt4(),3);
+		z = y.plus(x);
+		assertEquals(z.type(),Type.INT4);
+		assertEquals(z.asInt4(),3);
+		
+		x = DatumFactory.createInt4(1);
+		y = DatumFactory.createInt8(2l);
+		z = x.plus(y);
+		assertEquals(z.type(),Type.INT8);
+		assertEquals(z.asInt8(),3l);
+		z = y.plus(x);
+		assertEquals(z.type(),Type.INT8);
+		assertEquals(z.asInt8(),3l);
+		
+		y = DatumFactory.createFloat4(2.5f);
+		z = x.plus(y);
+		assertEquals(z.type(),Type.FLOAT4);
+		assertTrue(z.asFloat4() == 3.5f);
+		z = y.plus(x);
+		assertEquals(z.type(),Type.FLOAT4);
+		assertEquals(z.asInt4(),3);
+		
+		y = DatumFactory.createFloat8(4.5d);
+		z = x.plus(y);
+		assertEquals(z.type(),Type.FLOAT8);
+		assertTrue(z.asFloat8() == 5.5d);
+		z = y.plus(x);
+		assertEquals(z.type(),Type.FLOAT8);
+		assertTrue(z.asFloat8() == 5.5d);
+	}
+
+	@Test
+	public final void testMinusDatumDatum() {
+		Datum x;
+		Datum y;
+		Datum z;
+		
+		x = DatumFactory.createInt4(5);
+		y = DatumFactory.createInt4(2);
+		z = x.minus(y);
+		assertEquals(z.type(),Type.INT4);
+		assertEquals(z.asInt4(),3);
+		z = y.minus(x);
+		assertEquals(z.type(),Type.INT4);
+		assertEquals(z.asInt4(),-3);
+		
+		y = DatumFactory.createInt8(2l);
+		z = x.minus(y);
+		assertEquals(z.type(),Type.INT8);
+		assertEquals(z.asInt8(),3l);
+		z = y.minus(x);
+		assertEquals(z.type(),Type.INT8);
+		assertEquals(z.asInt8(),-3l);
+		
+		y = DatumFactory.createFloat4(2.5f);
+		z = x.minus(y);
+		assertEquals(z.type(),Type.FLOAT4);
+		assertTrue(z.asFloat4() == 2.5f);
+		z = y.minus(x);
+		assertEquals(z.type(),Type.FLOAT4);
+		assertTrue(z.asFloat4() == -2.5f);
+		
+		y = DatumFactory.createFloat8(4.5d);
+		z = x.minus(y);
+		assertEquals(z.type(),Type.FLOAT8);
+		assertTrue(z.asFloat8() == 0.5d);
+		z = y.minus(x);
+		assertEquals(z.type(),Type.FLOAT8);
+		assertTrue(z.asFloat8() == -0.5d);
+	}
+
+	@Test
+	public final void testMultiplyDatumDatum() {
+		Datum x;
+		Datum y;
+		Datum z;
+		
+		x = DatumFactory.createInt4(5);
+		y = DatumFactory.createInt4(2);
+		z = x.multiply(y);
+		assertEquals(z.type(),Type.INT4);
+		assertEquals(z.asInt4(),10);
+		z = y.multiply(x);
+		assertEquals(z.type(),Type.INT4);
+		assertEquals(z.asInt4(),10);
+		
+		y = DatumFactory.createInt8(2l);
+		z = x.multiply(y);
+		assertEquals(z.type(),Type.INT8);
+		assertEquals(z.asInt8(),10l);
+		z = y.multiply(x);
+		assertEquals(z.type(),Type.INT8);
+		assertEquals(z.asInt8(),10l);
+		
+		y = DatumFactory.createFloat4(2.5f);
+		z = x.multiply(y);
+		assertEquals(z.type(),Type.FLOAT4);
+		assertTrue(z.asFloat4() == 12.5f);
+		z = y.multiply(x);
+		assertEquals(z.type(),Type.FLOAT4);
+		assertTrue(z.asFloat4() == 12.5f);
+		
+		y = DatumFactory.createFloat8(4.5d);
+		z = x.multiply(y);
+		assertEquals(z.type(),Type.FLOAT8);
+		assertTrue(z.asFloat8() == 22.5d);
+		z = y.multiply(x);
+		assertEquals(z.type(),Type.FLOAT8);
+		assertTrue(z.asFloat8() == 22.5d);
+	}
+
+	@Test
+	public final void testDivideDatumDatum() {
+		Datum x;
+		Datum y;
+		Datum z;
+		
+		x = DatumFactory.createInt4(6);
+		y = DatumFactory.createInt4(3);
+		z = x.divide(y);
+		assertEquals(z.type(), Type.INT4);
+		assertEquals(z.asInt4(),2);
+		z = y.divide(x);
+		assertEquals(z.type(),Type.INT4);
+		assertTrue(z.asInt4() == 0);
+		
+		y = DatumFactory.createInt8(3l);
+		z = x.divide(y);
+		assertEquals(z.type(),Type.INT8);
+		assertEquals(z.asInt8(),2l);
+		z = y.divide(x);
+		assertEquals(z.type(),Type.INT8);
+		assertEquals(z.asInt8(),0l);
+		
+		y = DatumFactory.createFloat4(3f);
+		z = x.divide(y);
+		assertEquals(z.type(),Type.FLOAT4);
+		assertTrue(z.asFloat4() == 2.0f);
+		z = y.divide(x);
+		assertEquals(z.type(),Type.FLOAT4);
+		assertTrue(z.asFloat4() == 0.5f);
+		
+		y = DatumFactory.createFloat8(3d);
+		z = x.divide(y);
+		assertEquals(z.type(),Type.FLOAT8);
+		assertTrue(z.asFloat8() == 2.0d);
+		z = y.divide(x);
+		assertEquals(z.type(),Type.FLOAT8);
+		assertTrue(z.asFloat8() == 0.5d);
+	}
+	
+	@Test
+	public final void testEqualToDatum() {
+		Datum x;
+		Datum y;
+		Datum z;
+		
+		x = DatumFactory.createInt4(6);
+		y = DatumFactory.createInt4(3);
+		z = x.equalsTo(y);
+		assertEquals(z.type(),Type.BOOLEAN);
+		assertEquals(z.asBool(),false);		
+		z = y.equalsTo(x);
+		assertEquals(z.type(),Type.BOOLEAN);
+		assertEquals(z.asBool(), false);
+		
+		x = DatumFactory.createFloat4(3.27f);
+		y = DatumFactory.createFloat4(3.27f);
+		z = x.equalsTo(y);
+		assertEquals(z.type(),Type.BOOLEAN);
+		assertEquals(z.asBool(),true);		
+		z = y.equalsTo(x);
+		assertEquals(z.type(),Type.BOOLEAN);
+		assertEquals(z.asBool(), true);
+		
+		x = DatumFactory.createInt8(123456789012345l);
+		y = DatumFactory.createInt8(123456789012345l);
+		z = x.equalsTo(y);
+		assertEquals(z.type(),Type.BOOLEAN);
+		assertEquals(z.asBool(),true);		
+		z = y.equalsTo(x);
+		assertEquals(z.type(),Type.BOOLEAN);
+		assertEquals(z.asBool(), true);
+	}
+	
+	@Test
+	public final void testLessThanDatum() {
+		Datum x;
+		Datum y;
+		Datum z;
+		
+		x = DatumFactory.createInt4(6);
+		y = DatumFactory.createInt4(3);
+		z = x.lessThan(y);
+		assertEquals(z.type(),Type.BOOLEAN);
+		assertEquals(z.asBool(),false);		
+		z = y.lessThan(x);
+		assertEquals(z.type(),Type.BOOLEAN);
+		assertEquals(z.asBool(), true);
+	}
+	
+	@Test
+	public final void testLessThanEqualsDatum() {
+		Datum x;
+		Datum y;
+		Datum z;
+		
+		x = DatumFactory.createInt4(6);
+		y = DatumFactory.createInt4(3);
+		z = x.lessThanEqual(y);
+		assertEquals(z.type(),Type.BOOLEAN);
+		assertEquals(z.asBool(),false);		
+		z = y.lessThanEqual(x);
+		assertEquals(z.type(),Type.BOOLEAN);
+		assertEquals(z.asBool(), true);
+		
+		x = DatumFactory.createInt4(6);
+		y = DatumFactory.createInt4(6);
+		z = x.lessThanEqual(y);
+		assertEquals(z.type(),Type.BOOLEAN);
+		assertEquals(z.asBool(),true);		
+		z = y.lessThanEqual(x);
+		assertEquals(z.type(),Type.BOOLEAN);
+		assertEquals(z.asBool(), true);
+	}
+	
+	@Test
+	public final void testgreaterThanDatum() {
+		Datum x;
+		Datum y;
+		Datum z;
+		
+		x = DatumFactory.createInt4(6);
+		y = DatumFactory.createInt4(3);
+		z = x.greaterThan(y);
+		assertEquals(z.type(),Type.BOOLEAN);
+		assertEquals(z.asBool(),true);		
+		z = y.greaterThan(x);
+		assertEquals(z.type(),Type.BOOLEAN);
+		assertEquals(z.asBool(), false);
+		
+		x = DatumFactory.createInt4(6);
+		y = DatumFactory.createInt4(6);
+		z = x.greaterThan(y);
+		assertEquals(z.type(),Type.BOOLEAN);
+		assertEquals(z.asBool(),false);		
+		z = y.greaterThan(x);
+		assertEquals(z.type(),Type.BOOLEAN);
+		assertEquals(z.asBool(), false);
+	}
+	
+	@Test
+	public final void testgreaterThanEqualsDatum() {
+		Datum x;
+		Datum y;
+		Datum z;
+		
+		x = DatumFactory.createInt4(6);
+		y = DatumFactory.createInt4(3);
+		z = x.greaterThanEqual(y);
+		assertEquals(z.type(),Type.BOOLEAN);
+		assertEquals(z.asBool(),true);		
+		z = y.greaterThanEqual(x);
+		assertEquals(z.type(),Type.BOOLEAN);
+		assertEquals(z.asBool(), false);
+		
+		x = DatumFactory.createInt4(6);
+		y = DatumFactory.createInt4(6);
+		z = x.greaterThanEqual(y);
+		assertEquals(z.type(),Type.BOOLEAN);
+		assertEquals(z.asBool(),true);		
+		z = y.greaterThanEqual(x);
+		assertEquals(z.type(),Type.BOOLEAN);
+		assertEquals(z.asBool(), true);
+	}
+}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/org/apache/tajo/datum/TestDatumFactory.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/org/apache/tajo/datum/TestDatumFactory.java b/tajo-common/src/test/java/org/apache/tajo/datum/TestDatumFactory.java
new file mode 100644
index 0000000..ffb3a30
--- /dev/null
+++ b/tajo-common/src/test/java/org/apache/tajo/datum/TestDatumFactory.java
@@ -0,0 +1,75 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.tajo.datum;
+
+import org.junit.Test;
+import org.apache.tajo.common.TajoDataTypes.Type;
+
+import static org.junit.Assert.assertEquals;
+
+public class TestDatumFactory {
+	
+	@Test
+	public final void testCreateBit() {
+		Datum d = DatumFactory.createBit((byte) 5);
+		assertEquals(Type.BIT, d.type());
+	}
+
+	@Test
+	public final void testCreateInt2() {
+		Datum d = DatumFactory.createInt2((short) 5);
+		assertEquals(Type.INT2, d.type());
+	}
+	
+	@Test
+	public final void testCreateInt4() {
+		Datum d = DatumFactory.createInt4(5);
+		assertEquals(Type.INT4, d.type());
+	}
+	
+	@Test
+	public final void testCreateInt8() {
+		Datum d = DatumFactory.createInt8((long) 5);
+		assertEquals(Type.INT8, d.type());
+	}
+
+	@Test
+	public final void testCreateFloat4() {
+		Datum d = DatumFactory.createFloat4(5.0f);
+		assertEquals(Type.FLOAT4, d.type());
+	}
+
+	@Test
+	public final void testCreateFloat8() {
+		Datum d = DatumFactory.createFloat8(5.0d);
+		assertEquals(Type.FLOAT8, d.type());
+	}
+
+	@Test
+	public final void testCreateBoolean() {
+		Datum d = DatumFactory.createBool(true);
+		assertEquals(Type.BOOLEAN, d.type());
+	}
+
+	@Test
+	public final void testCreateString() {
+		Datum d = DatumFactory.createText("12345a");
+		assertEquals(Type.TEXT, d.type());
+	}
+}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/org/apache/tajo/datum/TestFloat8Datum.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/org/apache/tajo/datum/TestFloat8Datum.java b/tajo-common/src/test/java/org/apache/tajo/datum/TestFloat8Datum.java
new file mode 100644
index 0000000..1aed558
--- /dev/null
+++ b/tajo-common/src/test/java/org/apache/tajo/datum/TestFloat8Datum.java
@@ -0,0 +1,70 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.tajo.datum;
+
+import org.junit.Test;
+import org.apache.tajo.common.TajoDataTypes.Type;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+public class TestFloat8Datum {
+
+	@Test
+	public final void testType() {
+		Datum d = DatumFactory.createFloat8(1d);
+		assertEquals(Type.FLOAT8, d.type());
+	}
+
+	@Test
+	public final void testAsInt4() {
+		Datum d = DatumFactory.createFloat8(5d);
+		assertEquals(5,d.asInt4());
+	}
+
+	@Test
+	public final void testAsInt8() {
+		Datum d = DatumFactory.createFloat8(5d);
+		assertEquals(5l,d.asInt8());
+	}
+
+	@Test
+	public final void testAsFloat4() {
+		Datum d = DatumFactory.createFloat8(5d);
+		assertTrue(5.0f == d.asFloat4());
+	}
+
+	@Test
+	public final void testAsFloat8() {
+		Datum d = DatumFactory.createFloat8(5d);
+		assertTrue(5.0d == d.asFloat8());
+	}
+
+	@Test
+	public final void testAsText() {
+		Datum d = DatumFactory.createFloat8(5d);
+		assertEquals("5.0", d.asChars());
+	}
+	
+	@Test
+  public final void testSize() {
+	  Datum d = DatumFactory.createFloat8(5d);
+	  assertEquals(8, d.size());
+	}
+}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/org/apache/tajo/datum/TestFloatDatum.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/org/apache/tajo/datum/TestFloatDatum.java b/tajo-common/src/test/java/org/apache/tajo/datum/TestFloatDatum.java
new file mode 100644
index 0000000..185ba55
--- /dev/null
+++ b/tajo-common/src/test/java/org/apache/tajo/datum/TestFloatDatum.java
@@ -0,0 +1,70 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.tajo.datum;
+
+import org.junit.Test;
+import org.apache.tajo.common.TajoDataTypes.Type;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+public class TestFloatDatum {
+
+	@Test
+	public final void testType() {
+		Datum d = DatumFactory.createFloat4(1f);
+		assertEquals(Type.FLOAT4, d.type());
+	}
+
+	@Test
+	public final void testAsInt() {
+		Datum d = DatumFactory.createFloat4(5f);
+		assertEquals(5,d.asInt4());
+	}
+
+	@Test
+	public final void testAsLong() {
+		Datum d = DatumFactory.createFloat4(5f);
+		assertEquals(5l,d.asInt8());
+	}
+
+	@Test
+	public final void testAsFloat() {
+		Datum d = DatumFactory.createFloat4(5f);
+		assertTrue(5.0f == d.asFloat4());
+	}
+
+	@Test
+	public final void testAsDouble() {
+		Datum d = DatumFactory.createFloat4(5f);
+		assertTrue(5.0d == d.asFloat8());
+	}
+
+	@Test
+	public final void testAsChars() {
+		Datum d = DatumFactory.createFloat4(5f);
+		assertEquals("5.0", d.asChars());
+	}
+	
+	@Test
+  public final void testSize() {
+    Datum d = DatumFactory.createFloat4(5f);
+    assertEquals(4, d.size());
+  }
+}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/org/apache/tajo/datum/TestInet4Datum.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/org/apache/tajo/datum/TestInet4Datum.java b/tajo-common/src/test/java/org/apache/tajo/datum/TestInet4Datum.java
new file mode 100644
index 0000000..77b3363
--- /dev/null
+++ b/tajo-common/src/test/java/org/apache/tajo/datum/TestInet4Datum.java
@@ -0,0 +1,75 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.tajo.datum;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.apache.tajo.datum.json.GsonCreator;
+
+import java.util.Arrays;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+public class TestInet4Datum {
+
+	@Before
+	public void setUp() throws Exception {
+	}
+	
+	@Test
+	public final void testEquals() {
+	  Inet4Datum ip1 = new Inet4Datum("192.168.0.1");
+	  Inet4Datum ip2 = new Inet4Datum("192.168.0.1");
+	  
+	  assertEquals(ip1, ip2);
+	  
+	  Inet4Datum ip3 = new Inet4Datum(ip1.asByteArray());
+	  assertEquals(ip1, ip3);
+	  Inet4Datum ip4 = DatumFactory.createInet4(ip1.asByteArray());
+	  assertEquals(ip1, ip4);
+	}
+
+	@Test
+	public final void testAsByteArray() {
+		byte[] bytes = {(byte) 0xA3, (byte) 0x98, 0x17, (byte) 0xDE};
+		Inet4Datum ip = new Inet4Datum(bytes);
+		assertTrue(Arrays.equals(bytes, ip.asByteArray()));
+	}
+
+	@Test
+	public final void testAsChars() {
+		Inet4Datum ip = new Inet4Datum("163.152.23.222");
+		assertEquals("163.152.23.222", ip.asChars());
+	}
+	
+	@Test
+  public final void testSize() {
+    Datum d = DatumFactory.createInet4("163.152.23.222");
+    assertEquals(4, d.size());
+  }
+	
+	@Test
+	public final void testJson() {
+		Datum d = DatumFactory.createInet4("163.152.163.152");
+		String json = d.toJSON();
+		Datum fromJson = GsonCreator.getInstance().fromJson(json, Datum.class);
+		assertTrue(d.equalsTo(fromJson).asBool());
+	}
+}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/org/apache/tajo/datum/TestInt2Datum.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/org/apache/tajo/datum/TestInt2Datum.java b/tajo-common/src/test/java/org/apache/tajo/datum/TestInt2Datum.java
new file mode 100644
index 0000000..8a04a91
--- /dev/null
+++ b/tajo-common/src/test/java/org/apache/tajo/datum/TestInt2Datum.java
@@ -0,0 +1,70 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.tajo.datum;
+
+import org.junit.Test;
+import org.apache.tajo.common.TajoDataTypes.Type;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+public class TestInt2Datum {
+
+	@Test
+	public final void testType() {
+		Datum d = DatumFactory.createInt2((short) 1);
+		assertEquals(d.type(), Type.INT2);
+	}
+
+	@Test
+	public final void testAsInt4() {
+		Datum d = DatumFactory.createInt2((short) 5);
+		assertEquals(5,d.asInt4());
+	}
+
+	@Test
+	public final void testAsInt8() {
+		Datum d = DatumFactory.createInt2((short) 5);
+		assertEquals(5,d.asInt8());
+	}
+
+	@Test
+	public final void testAsFloat4() {
+		Datum d = DatumFactory.createInt2((short) 5);
+		assertTrue(5.0f == d.asFloat4());
+	}
+
+	@Test
+	public final void testAsFloat8() {
+		Datum d = DatumFactory.createInt2((short) 5);
+		assertTrue(5.0d == d.asFloat8());
+	}
+
+	@Test
+	public final void testAsText() {
+		Datum d = DatumFactory.createInt2((short) 5);
+		assertEquals("5", d.asChars());
+	}
+	
+	@Test
+  public final void testSize() {
+    Datum d = DatumFactory.createInt2((short) 5);
+    assertEquals(2, d.size());
+  }
+}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/org/apache/tajo/datum/TestInt4Datum.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/org/apache/tajo/datum/TestInt4Datum.java b/tajo-common/src/test/java/org/apache/tajo/datum/TestInt4Datum.java
new file mode 100644
index 0000000..223fdd9
--- /dev/null
+++ b/tajo-common/src/test/java/org/apache/tajo/datum/TestInt4Datum.java
@@ -0,0 +1,70 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.tajo.datum;
+
+import org.junit.Test;
+import org.apache.tajo.common.TajoDataTypes;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+public class TestInt4Datum {
+
+  @Test
+  public final void testType() {
+    Datum d = DatumFactory.createInt4(1);
+    assertEquals(TajoDataTypes.Type.INT4, d.type());
+  }
+
+  @Test
+  public final void testAsInt() {
+    Datum d = DatumFactory.createInt4(5);
+    assertEquals(5, d.asInt4());
+  }
+
+  @Test
+  public final void testAsLong() {
+    Datum d = DatumFactory.createInt4(5);
+    assertEquals(5, d.asInt8());
+  }
+
+  @Test
+  public final void testAsFloat() {
+    Datum d = DatumFactory.createInt4(5);
+    assertTrue(5.0f == d.asFloat4());
+  }
+
+  @Test
+  public final void testAsDouble() {
+    Datum d = DatumFactory.createInt4(5);
+    assertTrue(5.0d == d.asFloat8());
+  }
+
+  @Test
+  public final void testAsChars() {
+    Datum d = DatumFactory.createInt4(5);
+    assertEquals("5", d.asChars());
+  }
+
+  @Test
+  public final void testSize() {
+    Datum d = DatumFactory.createInt4(5);
+    assertEquals(4, d.size());
+  }
+}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/org/apache/tajo/datum/TestInt8Datum.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/org/apache/tajo/datum/TestInt8Datum.java b/tajo-common/src/test/java/org/apache/tajo/datum/TestInt8Datum.java
new file mode 100644
index 0000000..a8e6acf
--- /dev/null
+++ b/tajo-common/src/test/java/org/apache/tajo/datum/TestInt8Datum.java
@@ -0,0 +1,70 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.tajo.datum;
+
+import org.junit.Test;
+import org.apache.tajo.common.TajoDataTypes.Type;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+public class TestInt8Datum {
+
+	@Test
+	public final void testType() {
+		Datum d = DatumFactory.createInt8(1l);
+		assertEquals(d.type(), Type.INT8);
+	}
+
+	@Test
+	public final void testAsInt() {
+		Datum d = DatumFactory.createInt8(5l);
+		assertEquals(5,d.asInt4());
+	}
+
+	@Test
+	public final void testAsLong() {
+		Datum d = DatumFactory.createInt8(5l);
+		assertEquals(5l,d.asInt8());
+	}
+
+	@Test
+	public final void testAsFloat() {
+		Datum d = DatumFactory.createInt8(5l);
+		assertTrue(5.0f == d.asFloat4());
+	}
+
+	@Test
+	public final void testAsDouble() {
+		Datum d = DatumFactory.createInt8(5l);
+		assertTrue(5.0d == d.asFloat8());
+	}
+
+	@Test
+	public final void testAsChars() {
+		Datum d = DatumFactory.createInt8(5l);
+		assertEquals("5", d.asChars());
+	}
+	
+	@Test
+  public final void testSize() {
+    Datum d = DatumFactory.createInt8(5l);
+    assertEquals(8, d.size());
+  }
+}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/org/apache/tajo/datum/TestTextDatum.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/org/apache/tajo/datum/TestTextDatum.java b/tajo-common/src/test/java/org/apache/tajo/datum/TestTextDatum.java
new file mode 100644
index 0000000..07ce3ad
--- /dev/null
+++ b/tajo-common/src/test/java/org/apache/tajo/datum/TestTextDatum.java
@@ -0,0 +1,70 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.tajo.datum;
+
+import org.junit.Test;
+import org.apache.tajo.common.TajoDataTypes.Type;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+public class TestTextDatum {
+	
+	@Test
+	public final void testType() {
+		Datum d = DatumFactory.createText("12345");
+		assertEquals(d.type(), Type.TEXT);
+	}
+	
+	@Test
+	public final void testAsInt4() {
+		Datum d = DatumFactory.createText("12345");
+		assertEquals(12345,d.asInt4());
+	}
+
+	@Test
+	public final void testAsInt8() {
+		Datum d = DatumFactory.createText("12345");
+		assertEquals(12345l,d.asInt8());
+	}
+
+	@Test
+	public final void testAsFloat4() {
+		Datum d = DatumFactory.createText("12345");
+		assertTrue(12345.0f == d.asFloat4());
+	}
+
+	@Test
+	public final void testAsFloat8() {
+		Datum d = DatumFactory.createText("12345");
+		assertTrue(12345.0d == d.asFloat8());
+	}
+
+	@Test
+	public final void testAsText() {
+		Datum d = DatumFactory.createText("12345");
+		assertEquals("12345", d.asChars());
+	}
+	
+	@Test
+  public final void testSize() {
+	  Datum d = DatumFactory.createText("12345");
+    assertEquals(5, d.size());
+  }
+}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/org/apache/tajo/util/TestBitArrayTest.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/org/apache/tajo/util/TestBitArrayTest.java b/tajo-common/src/test/java/org/apache/tajo/util/TestBitArrayTest.java
new file mode 100644
index 0000000..9c82c8e
--- /dev/null
+++ b/tajo-common/src/test/java/org/apache/tajo/util/TestBitArrayTest.java
@@ -0,0 +1,39 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.tajo.util;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+public class TestBitArrayTest {
+
+  @Test
+  public void test() {
+    int num = 80;
+    BitArray bitArray = new BitArray(num);
+
+    for (int i = 0; i < num; i++) {
+      assertFalse(bitArray.get(i));
+      bitArray.set(i);
+      assertTrue(bitArray.get(i));
+    }
+  }
+}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/org/apache/tajo/util/TestFileUtils.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/org/apache/tajo/util/TestFileUtils.java b/tajo-common/src/test/java/org/apache/tajo/util/TestFileUtils.java
new file mode 100644
index 0000000..1e7d3c3
--- /dev/null
+++ b/tajo-common/src/test/java/org/apache/tajo/util/TestFileUtils.java
@@ -0,0 +1,107 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.tajo.util;
+
+import com.google.protobuf.Message;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.apache.tajo.util.TestProtos.TestMessageProto;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+import static org.junit.Assert.assertEquals;
+
+public class TestFileUtils {
+	private static final String TEST_PATH = "target/test-data/TestFileUTils";
+	TestMessageProto proto = null;	
+	
+	@Before
+	public void setUp() throws Exception {
+		TestMessageProto.Builder builder = TestMessageProto.newBuilder();
+		builder.setName("TestFileUtils");
+		builder.setAge(30);
+		builder.setAddr(TestFileUtils.class.getName());
+		
+		proto = builder.build();
+				
+		File testDir = new File(TEST_PATH);
+		if(testDir.exists()) {
+			testDir.delete();
+		}
+		testDir.mkdirs();
+	}
+	
+	@After
+	public void tearDown() throws Exception {
+		File testDir = new File(TEST_PATH);
+		if(testDir.exists()) {
+			testDir.delete();
+		}
+	}
+
+	@Test
+	public final void testWriteLoadProtoFromFile() throws IOException {		
+		File file = new File(TEST_PATH+"/file.bin");
+		file.createNewFile();
+		FileUtil.writeProto(file, proto);
+		
+		Message defaultInstance = TestMessageProto.getDefaultInstance();
+		TestMessageProto message = (TestMessageProto) 
+			FileUtil.loadProto(new File(TEST_PATH+"/file.bin"), defaultInstance);
+		
+		assertEquals(proto, message);
+	}
+
+	@Test
+	public final void testWriteLoadProtoFromStream() throws IOException {
+		FileOutputStream out = new FileOutputStream(new File(TEST_PATH+"/file.bin"));		
+		FileUtil.writeProto(out, proto);
+		
+		
+		FileInputStream in = new FileInputStream(new File(TEST_PATH+"/file.bin"));
+		Message defaultInstance = TestMessageProto.getDefaultInstance();
+		TestMessageProto message = (TestMessageProto) 
+			FileUtil.loadProto(in, defaultInstance);
+		
+		assertEquals(proto, message);
+	}
+
+	@Test
+	public final void testWriteLoadProtoFromPath() throws IOException {	
+		Path path = new Path(TEST_PATH+"/file.bin");
+    Configuration conf = new Configuration();
+    FileSystem localFS = FileSystem.getLocal(conf);
+		FileUtil.writeProto(localFS, path, proto);
+		
+		Message defaultInstance = TestMessageProto.getDefaultInstance();
+		TestMessageProto message = (TestMessageProto) 
+			FileUtil.loadProto(localFS, new Path(TEST_PATH+"/file.bin"),
+          defaultInstance);
+		
+		assertEquals(proto, message);
+	}
+	
+}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/tajo/common/type/TestIPv4.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/tajo/common/type/TestIPv4.java b/tajo-common/src/test/java/tajo/common/type/TestIPv4.java
deleted file mode 100644
index 8d4bf68..0000000
--- a/tajo-common/src/test/java/tajo/common/type/TestIPv4.java
+++ /dev/null
@@ -1,84 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package tajo.common.type;
-
-import org.junit.Test;
-import tajo.common.exception.InvalidAddressException;
-
-import static org.junit.Assert.*;
-
-public class TestIPv4 {
-
-	@Test
-	public final void testSet() {
-		IPv4 ip = null;
-		try {
-			ip = new IPv4("255.255.255.255");
-		} catch (InvalidAddressException e) {
-			System.out.println("InvalidAddressException is catched");
-		}
-		byte[] b = new byte[4];
-		for (int i = 0; i < 4; i++) {
-			b[i] = (byte)0xFF;
-		}
-		IPv4 ip2 = new IPv4(b);
-		assertEquals(ip, ip2);
-	}
-	
-	@Test
-	public final void testEqual() throws InvalidAddressException {
-		IPv4 ip1 = new IPv4("163.152.23.1");
-		IPv4 ip2 = new IPv4("163.152.23.2");
-		IPv4 ip3 = new IPv4("163.152.23.1");
-		assertTrue(ip1.equals(ip3));
-		assertFalse(ip1.equals(ip2));
-		IPv4 ip4 = new IPv4("255.255.0.0");
-		assertFalse(ip1.equals(ip4));
-	}
-	
-	@Test
-	public final void testAnd() throws InvalidAddressException {
-		IPv4 ip1 = new IPv4("163.152.23.223");
-		IPv4 ip2 = new IPv4("255.255.255.0");
-		IPv4 ip3 = new IPv4("255.0.0.0");
-		assertEquals(new IPv4("163.152.23.0"), ip1.and(ip2));
-		assertFalse(ip1.and(ip2).equals(new IPv4("163.152.0.0")));
-		assertTrue(ip1.and(ip3).equals(new IPv4("163.0.0.0")));
-	}
-	
-	@Test
-	public final void testMatchSubnet() throws InvalidAddressException {
-		IPv4 ip1 = new IPv4("163.152.23.223");
-		assertTrue(ip1.matchSubnet("163.152.23.0/1"));
-		assertFalse(ip1.matchSubnet("163.152.23.0/28"));
-	}
-	
-	@Test
-	public final void testCompareTo() throws InvalidAddressException {
-		IPv4 ip1 = new IPv4("163.152.23.1");
-		IPv4 ip2 = new IPv4("163.152.23.2");
-		IPv4 ip3 = new IPv4("177.234.123.12");
-		IPv4 ip4 = new IPv4("177.234.123.12");
-		assertTrue(ip1.compareTo(ip2) == -1);
-		assertTrue(ip2.compareTo(ip1) == 1);
-		assertTrue(ip3.compareTo(ip1) == 1);
-		assertFalse(ip3.compareTo(ip2) != 1);
-		assertTrue(ip4.compareTo(ip3) == 0);
-	}
-}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/tajo/common/type/TestTimeRange.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/tajo/common/type/TestTimeRange.java b/tajo-common/src/test/java/tajo/common/type/TestTimeRange.java
deleted file mode 100644
index be74f4a..0000000
--- a/tajo-common/src/test/java/tajo/common/type/TestTimeRange.java
+++ /dev/null
@@ -1,57 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package tajo.common.type;
-
-import org.junit.Before;
-import org.junit.Test;
-
-import static org.junit.Assert.*;
-
-public class TestTimeRange {
-	TimeRange test1;
-	TimeRange test2;
-	
-	@Before
-	public void testSet() {
-		test1 = new TimeRange(1321421413036l, 1321421442057l);
-		test2 = new TimeRange(1321421580408l, 1321421592193l);
-	}
-	
-	@Test
-	public void testGet() {
-		assertEquals(test1.getBegin(), 1321421413036l);
-		assertEquals(test2.getEnd(), 1321421592193l);
-	}
-
-	@Test
-	public void testCompare() {
-		assertEquals(test2.compareTo(test1), 1321421580408l-1321421413036l);
-	}
-	
-	@Test
-	public void testEquals() {
-		assertTrue(test1.equals(test1));
-		assertFalse(test1.equals(100));
-	}
-	
-//	@Test
-//	public void testToString() {
-//		assertEquals(test1.toString(), "(1321421413036l, 1321421442057l)");
-//	}
-}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/tajo/datum/TestBitDatum.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/tajo/datum/TestBitDatum.java b/tajo-common/src/test/java/tajo/datum/TestBitDatum.java
deleted file mode 100644
index 9225a0d..0000000
--- a/tajo-common/src/test/java/tajo/datum/TestBitDatum.java
+++ /dev/null
@@ -1,76 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package tajo.datum;
-
-import org.junit.Test;
-import tajo.common.TajoDataTypes.Type;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-
-public class TestBitDatum {
-
-	@Test
-	public final void testType() {
-		Datum d = DatumFactory.createBit((byte) 1);
-		assertEquals(Type.BIT, d.type());
-	}
-
-	@Test
-	public final void testAsInt() {
-		Datum d = DatumFactory.createBit((byte) 5);
-		assertEquals(5,d.asInt4());
-	}
-	
-	@Test
-	public final void testAsLong() {
-		Datum d = DatumFactory.createBit((byte) 5);
-		assertEquals(5l,d.asInt8());
-	}
-	
-	@Test
-	public final void testAsByte() {
-		Datum d = DatumFactory.createBit((byte) 5);
-		assertEquals(5,d.asInt8());
-	}
-
-	@Test
-	public final void testAsFloat() {
-		Datum d = DatumFactory.createBit((byte) 5);
-		assertTrue(5.0f == d.asFloat4());
-	}
-
-	@Test
-	public final void testAsDouble() {
-		Datum d = DatumFactory.createBit((byte) 5);
-		assertTrue(5.0d == d.asFloat8());
-	}
-	
-	@Test
-	public final void testAsChars() {
-		Datum d = DatumFactory.createBit((byte) 5);
-		System.out.println(d.asChars());
-	}
-	
-	@Test
-  public final void testSize() {
-    Datum d = DatumFactory.createBit((byte) 1);
-    assertEquals(1, d.size());
-  }
-}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/tajo/datum/TestBoolDatum.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/tajo/datum/TestBoolDatum.java b/tajo-common/src/test/java/tajo/datum/TestBoolDatum.java
deleted file mode 100644
index f7cfaaf..0000000
--- a/tajo-common/src/test/java/tajo/datum/TestBoolDatum.java
+++ /dev/null
@@ -1,75 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package tajo.datum;
-
-import org.junit.Test;
-import tajo.common.TajoDataTypes.Type;
-
-import static org.junit.Assert.assertEquals;
-
-public class TestBoolDatum {
-	
-	@Test
-	public final void testType() {
-		Datum d = DatumFactory.createBool(true);
-		assertEquals(Type.BOOLEAN, d.type());
-	}
-	
-	@Test
-	public final void testAsBool() {
-		Datum d = DatumFactory.createBool(false);
-		assertEquals(false, d.asBool());
-	}
-	
-	@Test
-	public final void testAsShort() {
-		Datum d = DatumFactory.createBool(true);
-		assertEquals(1, d.asInt2());
-	}
-	
-	@Test
-	public final void testAsInt() {
-		Datum d = DatumFactory.createBool(true);
-		assertEquals(1, d.asInt4());
-	}
-	
-	@Test
-	public final void testAsLong() {
-		Datum d = DatumFactory.createBool(false);
-		assertEquals(0, d.asInt8());
-	}
-	
-	@Test
-	public final void testAsByte() {
-		Datum d = DatumFactory.createBool(true);
-		assertEquals(0x01, d.asByte());
-	}
-	
-	@Test
-	public final void testAsChars() {
-		Datum d = DatumFactory.createBool(true);
-		assertEquals("true", d.asChars());
-	}
-	
-	@Test
-  public final void testSize() {
-    Datum d = DatumFactory.createBool(true);
-    assertEquals(1, d.size());
-  }
-}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/tajo/datum/TestBytesDatum.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/tajo/datum/TestBytesDatum.java b/tajo-common/src/test/java/tajo/datum/TestBytesDatum.java
deleted file mode 100644
index b718f23..0000000
--- a/tajo-common/src/test/java/tajo/datum/TestBytesDatum.java
+++ /dev/null
@@ -1,55 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package tajo.datum;
-
-import org.junit.Test;
-import tajo.common.TajoDataTypes.Type;
-import tajo.datum.json.GsonCreator;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-
-public class TestBytesDatum {
-
-  @Test
-  public final void testType() {
-    Datum d = DatumFactory.createBlob("12345".getBytes());
-    assertEquals(Type.BLOB, d.type());
-  }
-  
-  @Test
-  public final void testAsChars() {
-    Datum d = DatumFactory.createBlob("12345".getBytes());
-    assertEquals("12345", d.asChars());
-  }
-  
-  @Test
-  public final void testSize() {
-    Datum d = DatumFactory.createBlob("12345".getBytes());
-    assertEquals(5, d.size());
-  }
-  
-  @Test
-  public final void testJson() {
-	  Datum d = DatumFactory.createBlob("12345".getBytes());
-	  String json = d.toJSON();
-	  Datum fromJson = GsonCreator.getInstance().fromJson(json, Datum.class);
-	  assertTrue(d.equalsTo(fromJson).asBool());
-  }
-}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/tajo/datum/TestCharDatum.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/tajo/datum/TestCharDatum.java b/tajo-common/src/test/java/tajo/datum/TestCharDatum.java
deleted file mode 100644
index c193142..0000000
--- a/tajo-common/src/test/java/tajo/datum/TestCharDatum.java
+++ /dev/null
@@ -1,87 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package tajo.datum;
-
-import org.junit.Test;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-import static tajo.common.TajoDataTypes.Type;
-
-public class TestCharDatum {
-
-	@Test
-	public final void testType() {
-		Datum d = DatumFactory.createChar((char) 1);
-		assertEquals(Type.CHAR, d.type());
-	}
-
-	@Test
-	public final void testAsInt() {
-		Datum d = DatumFactory.createChar((char)5);
-		assertEquals(5,d.asInt4());
-	}
-	
-	@Test
-	public final void testAsLong() {
-		Datum d = DatumFactory.createChar((char)5);
-		assertEquals(5l,d.asInt8());
-	}
-	
-	@Test
-	public final void testAsByte() {
-		Datum d = DatumFactory.createChar((char)5);
-		assertEquals(5,d.asInt8());
-	}
-
-	@Test
-	public final void testAsFloat() {
-		Datum d = DatumFactory.createChar((char)5);
-		assertTrue(5.0f == d.asFloat4());
-	}
-
-	@Test
-	public final void testAsDouble() {
-		Datum d = DatumFactory.createChar((char)5);
-		assertTrue(5.0d == d.asFloat8());
-	}
-	
-	@Test
-	public final void testAsChars() {
-		Datum d = DatumFactory.createChar((char)5);
-		System.out.println(d.asChars());
-	}
-	
-	@Test
-  public final void testSize() {
-    Datum d = DatumFactory.createChar((char) 1);
-    assertEquals(1, d.size());
-  }
-
-  @Test
-  public final void testCompare() {
-    Datum a = DatumFactory.createChar('a');
-    Datum b = DatumFactory.createChar('b');
-    Datum c = DatumFactory.createChar('c');
-
-    assertTrue(a.compareTo(b) < 0);
-    assertTrue(b.compareTo(a) > 0);
-    assertTrue(c.compareTo(c) == 0);
-  }
-}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/tajo/datum/TestDatum.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/tajo/datum/TestDatum.java b/tajo-common/src/test/java/tajo/datum/TestDatum.java
deleted file mode 100644
index 73776e8..0000000
--- a/tajo-common/src/test/java/tajo/datum/TestDatum.java
+++ /dev/null
@@ -1,314 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package tajo.datum;
-
-import org.junit.Test;
-import tajo.common.TajoDataTypes.Type;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-
-public class TestDatum {
-
-	@Test
-	public final void testPlusDatumDatum() {
-		Datum x;
-		Datum y;
-		Datum z;
-		
-		x = DatumFactory.createInt4(1);
-		y = DatumFactory.createInt4(2);
-		z = x.plus(y);
-		assertEquals(z.type(), Type.INT4);
-		assertEquals(z.asInt4(),3);
-		z = y.plus(x);
-		assertEquals(z.type(),Type.INT4);
-		assertEquals(z.asInt4(),3);
-		
-		x = DatumFactory.createInt4(1);
-		y = DatumFactory.createInt8(2l);
-		z = x.plus(y);
-		assertEquals(z.type(),Type.INT8);
-		assertEquals(z.asInt8(),3l);
-		z = y.plus(x);
-		assertEquals(z.type(),Type.INT8);
-		assertEquals(z.asInt8(),3l);
-		
-		y = DatumFactory.createFloat4(2.5f);
-		z = x.plus(y);
-		assertEquals(z.type(),Type.FLOAT4);
-		assertTrue(z.asFloat4() == 3.5f);
-		z = y.plus(x);
-		assertEquals(z.type(),Type.FLOAT4);
-		assertEquals(z.asInt4(),3);
-		
-		y = DatumFactory.createFloat8(4.5d);
-		z = x.plus(y);
-		assertEquals(z.type(),Type.FLOAT8);
-		assertTrue(z.asFloat8() == 5.5d);
-		z = y.plus(x);
-		assertEquals(z.type(),Type.FLOAT8);
-		assertTrue(z.asFloat8() == 5.5d);
-	}
-
-	@Test
-	public final void testMinusDatumDatum() {
-		Datum x;
-		Datum y;
-		Datum z;
-		
-		x = DatumFactory.createInt4(5);
-		y = DatumFactory.createInt4(2);
-		z = x.minus(y);
-		assertEquals(z.type(),Type.INT4);
-		assertEquals(z.asInt4(),3);
-		z = y.minus(x);
-		assertEquals(z.type(),Type.INT4);
-		assertEquals(z.asInt4(),-3);
-		
-		y = DatumFactory.createInt8(2l);
-		z = x.minus(y);
-		assertEquals(z.type(),Type.INT8);
-		assertEquals(z.asInt8(),3l);
-		z = y.minus(x);
-		assertEquals(z.type(),Type.INT8);
-		assertEquals(z.asInt8(),-3l);
-		
-		y = DatumFactory.createFloat4(2.5f);
-		z = x.minus(y);
-		assertEquals(z.type(),Type.FLOAT4);
-		assertTrue(z.asFloat4() == 2.5f);
-		z = y.minus(x);
-		assertEquals(z.type(),Type.FLOAT4);
-		assertTrue(z.asFloat4() == -2.5f);
-		
-		y = DatumFactory.createFloat8(4.5d);
-		z = x.minus(y);
-		assertEquals(z.type(),Type.FLOAT8);
-		assertTrue(z.asFloat8() == 0.5d);
-		z = y.minus(x);
-		assertEquals(z.type(),Type.FLOAT8);
-		assertTrue(z.asFloat8() == -0.5d);
-	}
-
-	@Test
-	public final void testMultiplyDatumDatum() {
-		Datum x;
-		Datum y;
-		Datum z;
-		
-		x = DatumFactory.createInt4(5);
-		y = DatumFactory.createInt4(2);
-		z = x.multiply(y);
-		assertEquals(z.type(),Type.INT4);
-		assertEquals(z.asInt4(),10);
-		z = y.multiply(x);
-		assertEquals(z.type(),Type.INT4);
-		assertEquals(z.asInt4(),10);
-		
-		y = DatumFactory.createInt8(2l);
-		z = x.multiply(y);
-		assertEquals(z.type(),Type.INT8);
-		assertEquals(z.asInt8(),10l);
-		z = y.multiply(x);
-		assertEquals(z.type(),Type.INT8);
-		assertEquals(z.asInt8(),10l);
-		
-		y = DatumFactory.createFloat4(2.5f);
-		z = x.multiply(y);
-		assertEquals(z.type(),Type.FLOAT4);
-		assertTrue(z.asFloat4() == 12.5f);
-		z = y.multiply(x);
-		assertEquals(z.type(),Type.FLOAT4);
-		assertTrue(z.asFloat4() == 12.5f);
-		
-		y = DatumFactory.createFloat8(4.5d);
-		z = x.multiply(y);
-		assertEquals(z.type(),Type.FLOAT8);
-		assertTrue(z.asFloat8() == 22.5d);
-		z = y.multiply(x);
-		assertEquals(z.type(),Type.FLOAT8);
-		assertTrue(z.asFloat8() == 22.5d);
-	}
-
-	@Test
-	public final void testDivideDatumDatum() {
-		Datum x;
-		Datum y;
-		Datum z;
-		
-		x = DatumFactory.createInt4(6);
-		y = DatumFactory.createInt4(3);
-		z = x.divide(y);
-		assertEquals(z.type(), Type.INT4);
-		assertEquals(z.asInt4(),2);
-		z = y.divide(x);
-		assertEquals(z.type(),Type.INT4);
-		assertTrue(z.asInt4() == 0);
-		
-		y = DatumFactory.createInt8(3l);
-		z = x.divide(y);
-		assertEquals(z.type(),Type.INT8);
-		assertEquals(z.asInt8(),2l);
-		z = y.divide(x);
-		assertEquals(z.type(),Type.INT8);
-		assertEquals(z.asInt8(),0l);
-		
-		y = DatumFactory.createFloat4(3f);
-		z = x.divide(y);
-		assertEquals(z.type(),Type.FLOAT4);
-		assertTrue(z.asFloat4() == 2.0f);
-		z = y.divide(x);
-		assertEquals(z.type(),Type.FLOAT4);
-		assertTrue(z.asFloat4() == 0.5f);
-		
-		y = DatumFactory.createFloat8(3d);
-		z = x.divide(y);
-		assertEquals(z.type(),Type.FLOAT8);
-		assertTrue(z.asFloat8() == 2.0d);
-		z = y.divide(x);
-		assertEquals(z.type(),Type.FLOAT8);
-		assertTrue(z.asFloat8() == 0.5d);
-	}
-	
-	@Test
-	public final void testEqualToDatum() {
-		Datum x;
-		Datum y;
-		Datum z;
-		
-		x = DatumFactory.createInt4(6);
-		y = DatumFactory.createInt4(3);
-		z = x.equalsTo(y);
-		assertEquals(z.type(),Type.BOOLEAN);
-		assertEquals(z.asBool(),false);		
-		z = y.equalsTo(x);
-		assertEquals(z.type(),Type.BOOLEAN);
-		assertEquals(z.asBool(), false);
-		
-		x = DatumFactory.createFloat4(3.27f);
-		y = DatumFactory.createFloat4(3.27f);
-		z = x.equalsTo(y);
-		assertEquals(z.type(),Type.BOOLEAN);
-		assertEquals(z.asBool(),true);		
-		z = y.equalsTo(x);
-		assertEquals(z.type(),Type.BOOLEAN);
-		assertEquals(z.asBool(), true);
-		
-		x = DatumFactory.createInt8(123456789012345l);
-		y = DatumFactory.createInt8(123456789012345l);
-		z = x.equalsTo(y);
-		assertEquals(z.type(),Type.BOOLEAN);
-		assertEquals(z.asBool(),true);		
-		z = y.equalsTo(x);
-		assertEquals(z.type(),Type.BOOLEAN);
-		assertEquals(z.asBool(), true);
-	}
-	
-	@Test
-	public final void testLessThanDatum() {
-		Datum x;
-		Datum y;
-		Datum z;
-		
-		x = DatumFactory.createInt4(6);
-		y = DatumFactory.createInt4(3);
-		z = x.lessThan(y);
-		assertEquals(z.type(),Type.BOOLEAN);
-		assertEquals(z.asBool(),false);		
-		z = y.lessThan(x);
-		assertEquals(z.type(),Type.BOOLEAN);
-		assertEquals(z.asBool(), true);
-	}
-	
-	@Test
-	public final void testLessThanEqualsDatum() {
-		Datum x;
-		Datum y;
-		Datum z;
-		
-		x = DatumFactory.createInt4(6);
-		y = DatumFactory.createInt4(3);
-		z = x.lessThanEqual(y);
-		assertEquals(z.type(),Type.BOOLEAN);
-		assertEquals(z.asBool(),false);		
-		z = y.lessThanEqual(x);
-		assertEquals(z.type(),Type.BOOLEAN);
-		assertEquals(z.asBool(), true);
-		
-		x = DatumFactory.createInt4(6);
-		y = DatumFactory.createInt4(6);
-		z = x.lessThanEqual(y);
-		assertEquals(z.type(),Type.BOOLEAN);
-		assertEquals(z.asBool(),true);		
-		z = y.lessThanEqual(x);
-		assertEquals(z.type(),Type.BOOLEAN);
-		assertEquals(z.asBool(), true);
-	}
-	
-	@Test
-	public final void testgreaterThanDatum() {
-		Datum x;
-		Datum y;
-		Datum z;
-		
-		x = DatumFactory.createInt4(6);
-		y = DatumFactory.createInt4(3);
-		z = x.greaterThan(y);
-		assertEquals(z.type(),Type.BOOLEAN);
-		assertEquals(z.asBool(),true);		
-		z = y.greaterThan(x);
-		assertEquals(z.type(),Type.BOOLEAN);
-		assertEquals(z.asBool(), false);
-		
-		x = DatumFactory.createInt4(6);
-		y = DatumFactory.createInt4(6);
-		z = x.greaterThan(y);
-		assertEquals(z.type(),Type.BOOLEAN);
-		assertEquals(z.asBool(),false);		
-		z = y.greaterThan(x);
-		assertEquals(z.type(),Type.BOOLEAN);
-		assertEquals(z.asBool(), false);
-	}
-	
-	@Test
-	public final void testgreaterThanEqualsDatum() {
-		Datum x;
-		Datum y;
-		Datum z;
-		
-		x = DatumFactory.createInt4(6);
-		y = DatumFactory.createInt4(3);
-		z = x.greaterThanEqual(y);
-		assertEquals(z.type(),Type.BOOLEAN);
-		assertEquals(z.asBool(),true);		
-		z = y.greaterThanEqual(x);
-		assertEquals(z.type(),Type.BOOLEAN);
-		assertEquals(z.asBool(), false);
-		
-		x = DatumFactory.createInt4(6);
-		y = DatumFactory.createInt4(6);
-		z = x.greaterThanEqual(y);
-		assertEquals(z.type(),Type.BOOLEAN);
-		assertEquals(z.asBool(),true);		
-		z = y.greaterThanEqual(x);
-		assertEquals(z.type(),Type.BOOLEAN);
-		assertEquals(z.asBool(), true);
-	}
-}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/tajo/datum/TestDatumFactory.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/tajo/datum/TestDatumFactory.java b/tajo-common/src/test/java/tajo/datum/TestDatumFactory.java
deleted file mode 100644
index 2b59f46..0000000
--- a/tajo-common/src/test/java/tajo/datum/TestDatumFactory.java
+++ /dev/null
@@ -1,75 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package tajo.datum;
-
-import org.junit.Test;
-import tajo.common.TajoDataTypes.Type;
-
-import static org.junit.Assert.assertEquals;
-
-public class TestDatumFactory {
-	
-	@Test
-	public final void testCreateBit() {
-		Datum d = DatumFactory.createBit((byte) 5);
-		assertEquals(Type.BIT, d.type());
-	}
-
-	@Test
-	public final void testCreateInt2() {
-		Datum d = DatumFactory.createInt2((short) 5);
-		assertEquals(Type.INT2, d.type());
-	}
-	
-	@Test
-	public final void testCreateInt4() {
-		Datum d = DatumFactory.createInt4(5);
-		assertEquals(Type.INT4, d.type());
-	}
-	
-	@Test
-	public final void testCreateInt8() {
-		Datum d = DatumFactory.createInt8((long) 5);
-		assertEquals(Type.INT8, d.type());
-	}
-
-	@Test
-	public final void testCreateFloat4() {
-		Datum d = DatumFactory.createFloat4(5.0f);
-		assertEquals(Type.FLOAT4, d.type());
-	}
-
-	@Test
-	public final void testCreateFloat8() {
-		Datum d = DatumFactory.createFloat8(5.0d);
-		assertEquals(Type.FLOAT8, d.type());
-	}
-
-	@Test
-	public final void testCreateBoolean() {
-		Datum d = DatumFactory.createBool(true);
-		assertEquals(Type.BOOLEAN, d.type());
-	}
-
-	@Test
-	public final void testCreateString() {
-		Datum d = DatumFactory.createText("12345a");
-		assertEquals(Type.TEXT, d.type());
-	}
-}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/tajo/datum/TestFloat8Datum.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/tajo/datum/TestFloat8Datum.java b/tajo-common/src/test/java/tajo/datum/TestFloat8Datum.java
deleted file mode 100644
index 6558fd2..0000000
--- a/tajo-common/src/test/java/tajo/datum/TestFloat8Datum.java
+++ /dev/null
@@ -1,70 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package tajo.datum;
-
-import org.junit.Test;
-import tajo.common.TajoDataTypes.Type;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-
-public class TestFloat8Datum {
-
-	@Test
-	public final void testType() {
-		Datum d = DatumFactory.createFloat8(1d);
-		assertEquals(Type.FLOAT8, d.type());
-	}
-
-	@Test
-	public final void testAsInt4() {
-		Datum d = DatumFactory.createFloat8(5d);
-		assertEquals(5,d.asInt4());
-	}
-
-	@Test
-	public final void testAsInt8() {
-		Datum d = DatumFactory.createFloat8(5d);
-		assertEquals(5l,d.asInt8());
-	}
-
-	@Test
-	public final void testAsFloat4() {
-		Datum d = DatumFactory.createFloat8(5d);
-		assertTrue(5.0f == d.asFloat4());
-	}
-
-	@Test
-	public final void testAsFloat8() {
-		Datum d = DatumFactory.createFloat8(5d);
-		assertTrue(5.0d == d.asFloat8());
-	}
-
-	@Test
-	public final void testAsText() {
-		Datum d = DatumFactory.createFloat8(5d);
-		assertEquals("5.0", d.asChars());
-	}
-	
-	@Test
-  public final void testSize() {
-	  Datum d = DatumFactory.createFloat8(5d);
-	  assertEquals(8, d.size());
-	}
-}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/tajo/datum/TestFloatDatum.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/tajo/datum/TestFloatDatum.java b/tajo-common/src/test/java/tajo/datum/TestFloatDatum.java
deleted file mode 100644
index b207666..0000000
--- a/tajo-common/src/test/java/tajo/datum/TestFloatDatum.java
+++ /dev/null
@@ -1,70 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package tajo.datum;
-
-import org.junit.Test;
-import tajo.common.TajoDataTypes.Type;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-
-public class TestFloatDatum {
-
-	@Test
-	public final void testType() {
-		Datum d = DatumFactory.createFloat4(1f);
-		assertEquals(Type.FLOAT4, d.type());
-	}
-
-	@Test
-	public final void testAsInt() {
-		Datum d = DatumFactory.createFloat4(5f);
-		assertEquals(5,d.asInt4());
-	}
-
-	@Test
-	public final void testAsLong() {
-		Datum d = DatumFactory.createFloat4(5f);
-		assertEquals(5l,d.asInt8());
-	}
-
-	@Test
-	public final void testAsFloat() {
-		Datum d = DatumFactory.createFloat4(5f);
-		assertTrue(5.0f == d.asFloat4());
-	}
-
-	@Test
-	public final void testAsDouble() {
-		Datum d = DatumFactory.createFloat4(5f);
-		assertTrue(5.0d == d.asFloat8());
-	}
-
-	@Test
-	public final void testAsChars() {
-		Datum d = DatumFactory.createFloat4(5f);
-		assertEquals("5.0", d.asChars());
-	}
-	
-	@Test
-  public final void testSize() {
-    Datum d = DatumFactory.createFloat4(5f);
-    assertEquals(4, d.size());
-  }
-}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/tajo/datum/TestInet4Datum.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/tajo/datum/TestInet4Datum.java b/tajo-common/src/test/java/tajo/datum/TestInet4Datum.java
deleted file mode 100644
index 8df9506..0000000
--- a/tajo-common/src/test/java/tajo/datum/TestInet4Datum.java
+++ /dev/null
@@ -1,75 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package tajo.datum;
-
-import org.junit.Before;
-import org.junit.Test;
-import tajo.datum.json.GsonCreator;
-
-import java.util.Arrays;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-
-public class TestInet4Datum {
-
-	@Before
-	public void setUp() throws Exception {
-	}
-	
-	@Test
-	public final void testEquals() {
-	  Inet4Datum ip1 = new Inet4Datum("192.168.0.1");
-	  Inet4Datum ip2 = new Inet4Datum("192.168.0.1");
-	  
-	  assertEquals(ip1, ip2);
-	  
-	  Inet4Datum ip3 = new Inet4Datum(ip1.asByteArray());
-	  assertEquals(ip1, ip3);
-	  Inet4Datum ip4 = DatumFactory.createInet4(ip1.asByteArray());
-	  assertEquals(ip1, ip4);
-	}
-
-	@Test
-	public final void testAsByteArray() {
-		byte[] bytes = {(byte) 0xA3, (byte) 0x98, 0x17, (byte) 0xDE};
-		Inet4Datum ip = new Inet4Datum(bytes);
-		assertTrue(Arrays.equals(bytes, ip.asByteArray()));
-	}
-
-	@Test
-	public final void testAsChars() {
-		Inet4Datum ip = new Inet4Datum("163.152.23.222");
-		assertEquals("163.152.23.222", ip.asChars());
-	}
-	
-	@Test
-  public final void testSize() {
-    Datum d = DatumFactory.createInet4("163.152.23.222");
-    assertEquals(4, d.size());
-  }
-	
-	@Test
-	public final void testJson() {
-		Datum d = DatumFactory.createInet4("163.152.163.152");
-		String json = d.toJSON();
-		Datum fromJson = GsonCreator.getInstance().fromJson(json, Datum.class);
-		assertTrue(d.equalsTo(fromJson).asBool());
-	}
-}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/tajo/datum/TestInt2Datum.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/tajo/datum/TestInt2Datum.java b/tajo-common/src/test/java/tajo/datum/TestInt2Datum.java
deleted file mode 100644
index cef991b..0000000
--- a/tajo-common/src/test/java/tajo/datum/TestInt2Datum.java
+++ /dev/null
@@ -1,70 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package tajo.datum;
-
-import org.junit.Test;
-import tajo.common.TajoDataTypes.Type;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-
-public class TestInt2Datum {
-
-	@Test
-	public final void testType() {
-		Datum d = DatumFactory.createInt2((short) 1);
-		assertEquals(d.type(), Type.INT2);
-	}
-
-	@Test
-	public final void testAsInt4() {
-		Datum d = DatumFactory.createInt2((short) 5);
-		assertEquals(5,d.asInt4());
-	}
-
-	@Test
-	public final void testAsInt8() {
-		Datum d = DatumFactory.createInt2((short) 5);
-		assertEquals(5,d.asInt8());
-	}
-
-	@Test
-	public final void testAsFloat4() {
-		Datum d = DatumFactory.createInt2((short) 5);
-		assertTrue(5.0f == d.asFloat4());
-	}
-
-	@Test
-	public final void testAsFloat8() {
-		Datum d = DatumFactory.createInt2((short) 5);
-		assertTrue(5.0d == d.asFloat8());
-	}
-
-	@Test
-	public final void testAsText() {
-		Datum d = DatumFactory.createInt2((short) 5);
-		assertEquals("5", d.asChars());
-	}
-	
-	@Test
-  public final void testSize() {
-    Datum d = DatumFactory.createInt2((short) 5);
-    assertEquals(2, d.size());
-  }
-}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/tajo/datum/TestInt4Datum.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/tajo/datum/TestInt4Datum.java b/tajo-common/src/test/java/tajo/datum/TestInt4Datum.java
deleted file mode 100644
index 5fc9e2d..0000000
--- a/tajo-common/src/test/java/tajo/datum/TestInt4Datum.java
+++ /dev/null
@@ -1,70 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package tajo.datum;
-
-import org.junit.Test;
-import tajo.common.TajoDataTypes;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-
-public class TestInt4Datum {
-
-  @Test
-  public final void testType() {
-    Datum d = DatumFactory.createInt4(1);
-    assertEquals(TajoDataTypes.Type.INT4, d.type());
-  }
-
-  @Test
-  public final void testAsInt() {
-    Datum d = DatumFactory.createInt4(5);
-    assertEquals(5, d.asInt4());
-  }
-
-  @Test
-  public final void testAsLong() {
-    Datum d = DatumFactory.createInt4(5);
-    assertEquals(5, d.asInt8());
-  }
-
-  @Test
-  public final void testAsFloat() {
-    Datum d = DatumFactory.createInt4(5);
-    assertTrue(5.0f == d.asFloat4());
-  }
-
-  @Test
-  public final void testAsDouble() {
-    Datum d = DatumFactory.createInt4(5);
-    assertTrue(5.0d == d.asFloat8());
-  }
-
-  @Test
-  public final void testAsChars() {
-    Datum d = DatumFactory.createInt4(5);
-    assertEquals("5", d.asChars());
-  }
-
-  @Test
-  public final void testSize() {
-    Datum d = DatumFactory.createInt4(5);
-    assertEquals(4, d.size());
-  }
-}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/tajo/datum/TestInt8Datum.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/tajo/datum/TestInt8Datum.java b/tajo-common/src/test/java/tajo/datum/TestInt8Datum.java
deleted file mode 100644
index 6e8042b..0000000
--- a/tajo-common/src/test/java/tajo/datum/TestInt8Datum.java
+++ /dev/null
@@ -1,70 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package tajo.datum;
-
-import org.junit.Test;
-import tajo.common.TajoDataTypes.Type;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-
-public class TestInt8Datum {
-
-	@Test
-	public final void testType() {
-		Datum d = DatumFactory.createInt8(1l);
-		assertEquals(d.type(), Type.INT8);
-	}
-
-	@Test
-	public final void testAsInt() {
-		Datum d = DatumFactory.createInt8(5l);
-		assertEquals(5,d.asInt4());
-	}
-
-	@Test
-	public final void testAsLong() {
-		Datum d = DatumFactory.createInt8(5l);
-		assertEquals(5l,d.asInt8());
-	}
-
-	@Test
-	public final void testAsFloat() {
-		Datum d = DatumFactory.createInt8(5l);
-		assertTrue(5.0f == d.asFloat4());
-	}
-
-	@Test
-	public final void testAsDouble() {
-		Datum d = DatumFactory.createInt8(5l);
-		assertTrue(5.0d == d.asFloat8());
-	}
-
-	@Test
-	public final void testAsChars() {
-		Datum d = DatumFactory.createInt8(5l);
-		assertEquals("5", d.asChars());
-	}
-	
-	@Test
-  public final void testSize() {
-    Datum d = DatumFactory.createInt8(5l);
-    assertEquals(8, d.size());
-  }
-}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/tajo/datum/TestTextDatum.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/tajo/datum/TestTextDatum.java b/tajo-common/src/test/java/tajo/datum/TestTextDatum.java
deleted file mode 100644
index af87bde..0000000
--- a/tajo-common/src/test/java/tajo/datum/TestTextDatum.java
+++ /dev/null
@@ -1,70 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package tajo.datum;
-
-import org.junit.Test;
-import tajo.common.TajoDataTypes.Type;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-
-public class TestTextDatum {
-	
-	@Test
-	public final void testType() {
-		Datum d = DatumFactory.createText("12345");
-		assertEquals(d.type(), Type.TEXT);
-	}
-	
-	@Test
-	public final void testAsInt4() {
-		Datum d = DatumFactory.createText("12345");
-		assertEquals(12345,d.asInt4());
-	}
-
-	@Test
-	public final void testAsInt8() {
-		Datum d = DatumFactory.createText("12345");
-		assertEquals(12345l,d.asInt8());
-	}
-
-	@Test
-	public final void testAsFloat4() {
-		Datum d = DatumFactory.createText("12345");
-		assertTrue(12345.0f == d.asFloat4());
-	}
-
-	@Test
-	public final void testAsFloat8() {
-		Datum d = DatumFactory.createText("12345");
-		assertTrue(12345.0d == d.asFloat8());
-	}
-
-	@Test
-	public final void testAsText() {
-		Datum d = DatumFactory.createText("12345");
-		assertEquals("12345", d.asChars());
-	}
-	
-	@Test
-  public final void testSize() {
-	  Datum d = DatumFactory.createText("12345");
-    assertEquals(5, d.size());
-  }
-}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/tajo/util/TestBitArrayTest.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/tajo/util/TestBitArrayTest.java b/tajo-common/src/test/java/tajo/util/TestBitArrayTest.java
deleted file mode 100644
index 3839409..0000000
--- a/tajo-common/src/test/java/tajo/util/TestBitArrayTest.java
+++ /dev/null
@@ -1,39 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package tajo.util;
-
-import org.junit.Test;
-
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
-
-public class TestBitArrayTest {
-
-  @Test
-  public void test() {
-    int num = 80;
-    BitArray bitArray = new BitArray(num);
-
-    for (int i = 0; i < num; i++) {
-      assertFalse(bitArray.get(i));
-      bitArray.set(i);
-      assertTrue(bitArray.get(i));
-    }
-  }
-}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-common/src/test/java/tajo/util/TestFileUtils.java
----------------------------------------------------------------------
diff --git a/tajo-common/src/test/java/tajo/util/TestFileUtils.java b/tajo-common/src/test/java/tajo/util/TestFileUtils.java
deleted file mode 100644
index d0e84b7..0000000
--- a/tajo-common/src/test/java/tajo/util/TestFileUtils.java
+++ /dev/null
@@ -1,107 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package tajo.util;
-
-import com.google.protobuf.Message;
-import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.fs.FileSystem;
-import org.apache.hadoop.fs.Path;
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Test;
-import tajo.util.TestProtos.TestMessageProto;
-
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-
-import static org.junit.Assert.assertEquals;
-
-public class TestFileUtils {
-	private static final String TEST_PATH = "target/test-data/TestFileUTils";
-	TestMessageProto proto = null;	
-	
-	@Before
-	public void setUp() throws Exception {
-		TestMessageProto.Builder builder = TestMessageProto.newBuilder();
-		builder.setName("TestFileUtils");
-		builder.setAge(30);
-		builder.setAddr(TestFileUtils.class.getName());
-		
-		proto = builder.build();
-				
-		File testDir = new File(TEST_PATH);
-		if(testDir.exists()) {
-			testDir.delete();
-		}
-		testDir.mkdirs();
-	}
-	
-	@After
-	public void tearDown() throws Exception {
-		File testDir = new File(TEST_PATH);
-		if(testDir.exists()) {
-			testDir.delete();
-		}
-	}
-
-	@Test
-	public final void testWriteLoadProtoFromFile() throws IOException {		
-		File file = new File(TEST_PATH+"/file.bin");
-		file.createNewFile();
-		FileUtil.writeProto(file, proto);
-		
-		Message defaultInstance = TestMessageProto.getDefaultInstance();
-		TestMessageProto message = (TestMessageProto) 
-			FileUtil.loadProto(new File(TEST_PATH+"/file.bin"), defaultInstance);
-		
-		assertEquals(proto, message);
-	}
-
-	@Test
-	public final void testWriteLoadProtoFromStream() throws IOException {
-		FileOutputStream out = new FileOutputStream(new File(TEST_PATH+"/file.bin"));		
-		FileUtil.writeProto(out, proto);
-		
-		
-		FileInputStream in = new FileInputStream(new File(TEST_PATH+"/file.bin"));
-		Message defaultInstance = TestMessageProto.getDefaultInstance();
-		TestMessageProto message = (TestMessageProto) 
-			FileUtil.loadProto(in, defaultInstance);
-		
-		assertEquals(proto, message);
-	}
-
-	@Test
-	public final void testWriteLoadProtoFromPath() throws IOException {	
-		Path path = new Path(TEST_PATH+"/file.bin");
-    Configuration conf = new Configuration();
-    FileSystem localFS = FileSystem.getLocal(conf);
-		FileUtil.writeProto(localFS, path, proto);
-		
-		Message defaultInstance = TestMessageProto.getDefaultInstance();
-		TestMessageProto message = (TestMessageProto) 
-			FileUtil.loadProto(localFS, new Path(TEST_PATH+"/file.bin"),
-          defaultInstance);
-		
-		assertEquals(proto, message);
-	}
-	
-}

http://git-wip-us.apache.org/repos/asf/incubator-tajo/blob/bc6359b8/tajo-core/tajo-core-backend/pom.xml
----------------------------------------------------------------------
diff --git a/tajo-core/tajo-core-backend/pom.xml b/tajo-core/tajo-core-backend/pom.xml
index 88d804f..83af62a 100644
--- a/tajo-core/tajo-core-backend/pom.xml
+++ b/tajo-core/tajo-core-backend/pom.xml
@@ -69,7 +69,7 @@
           </dependency>
         </dependencies>
         <configuration>
-          <excludedGroups>tajo.IntegrationTest</excludedGroups>
+          <excludedGroups>org.apache.tajo.IntegrationTest</excludedGroups>
         </configuration>
       </plugin>
       <plugin>
@@ -95,7 +95,7 @@
           <includes>
             <include>**/*.class</include>
           </includes>
-          <groups>tajo.IntegrationTest</groups>
+          <groups>org.apache.tajo.IntegrationTest</groups>
           <!--
           <environmentVariables>
             <TAJO_CLASSPATH>${project.basedir}/../../tajo-dist/target/tajo-${project.version}/*:${project.basedir}/../../tajo-dist/target/tajo-${project.version}/lib/*</TAJO_CLASSPATH>