svn commit: r983750 - /hadoop/pig/trunk/test/org/apache/pig/test/TestBinaryExpressionOps.java

[rd...@apache.org]

Author: rding
Date: Mon Aug  9 17:47:34 2010
New Revision: 983750

URL: http://svn.apache.org/viewvc?rev=983750&view=rev
Log:
PIG-1525: Incorrect data generated by diff of SUM

Added:
    hadoop/pig/trunk/test/org/apache/pig/test/TestBinaryExpressionOps.java

Added: hadoop/pig/trunk/test/org/apache/pig/test/TestBinaryExpressionOps.java
URL: http://svn.apache.org/viewvc/hadoop/pig/trunk/test/org/apache/pig/test/TestBinaryExpressionOps.java?rev=983750&view=auto
==============================================================================
--- hadoop/pig/trunk/test/org/apache/pig/test/TestBinaryExpressionOps.java (added)
+++ hadoop/pig/trunk/test/org/apache/pig/test/TestBinaryExpressionOps.java Mon Aug  9 17:47:34 2010
@@ -0,0 +1,79 @@
+
+/*
+ * 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.pig.test;
+
+
+import static org.junit.Assert.assertEquals;
+
+import java.util.Iterator;
+
+import org.apache.pig.ExecType;
+import org.apache.pig.PigServer;
+import org.apache.pig.data.Tuple;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+public class TestBinaryExpressionOps {
+
+    private static MiniCluster cluster = MiniCluster.buildCluster();
+    
+    private static final String INPUT_1 = "input1";
+    private static final String INPUT_2 = "input2";
+    
+    @BeforeClass
+    public static void setUpBeforeClass() throws Exception {
+        String[] inputData1 = new String[] {
+                "id2\t10"
+        };
+        String[] inputData2 = new String[] {
+                "id1\t2", "id2\t2"
+        };
+        Util.createInputFile(cluster, INPUT_1, inputData1);        
+        Util.createInputFile(cluster, INPUT_2, inputData2);
+    }
+
+    @AfterClass
+    public static void tearDownAfterClass() throws Exception {
+        cluster.shutDown();
+    }
+    
+    @Test
+    public void testArithmeticOperators() throws Exception {
+        PigServer pig = new PigServer(ExecType.MAPREDUCE, cluster.getProperties());
+        
+        pig.registerQuery("A = LOAD '" + INPUT_1 + "' AS (id:chararray, val:long);");
+        pig.registerQuery("B = LOAD '" + INPUT_2 + "' AS (id:chararray, val:long);");
+        pig.registerQuery("C = COGROUP A BY id, B BY id;");
+        pig.registerQuery("D = FOREACH C GENERATE group, SUM(B.val), SUM(A.val), "
+                + "(SUM(A.val) - SUM(B.val)), (SUM(A.val) + SUM(B.val)), " 
+                + "(SUM(A.val) * SUM(B.val)), (SUM(A.val) / SUM(B.val)), " 
+                + "(SUM(A.val) % SUM(B.val)), (SUM(A.val) < 0 ? SUM(A.val) : SUM(B.val));");
+               
+        String[] expectedResults = new String[] {"(id1,2,,,,,,,)", "(id2,2,10,8,12,20,5,0,2)"};
+        Iterator<Tuple> iter = pig.openIterator("D");             
+        int counter = 0;
+        while (iter.hasNext()) { 
+            assertEquals(expectedResults[counter++], iter.next().toString());      
+        }
+        assertEquals(expectedResults.length, counter);
+    }
+    
+}