[03/11] incubator-beam git commit: Use Structural Value keys instead of User Values

[da...@apache.org]

http://git-wip-us.apache.org/repos/asf/incubator-beam/blob/b1b537b6/runners/direct-java/src/test/java/org/apache/beam/runners/direct/StructuralKeyTest.java
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diff --git a/runners/direct-java/src/test/java/org/apache/beam/runners/direct/StructuralKeyTest.java b/runners/direct-java/src/test/java/org/apache/beam/runners/direct/StructuralKeyTest.java
new file mode 100644
index 0000000..26514f0
--- /dev/null
+++ b/runners/direct-java/src/test/java/org/apache/beam/runners/direct/StructuralKeyTest.java
@@ -0,0 +1,81 @@
+/*
+ * 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.beam.runners.direct;
+
+import static org.hamcrest.Matchers.equalTo;
+import static org.hamcrest.Matchers.not;
+import static org.hamcrest.Matchers.theInstance;
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertThat;
+
+import org.apache.beam.sdk.coders.ByteArrayCoder;
+import org.apache.beam.sdk.coders.StringUtf8Coder;
+import org.apache.beam.sdk.coders.VarIntCoder;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+/**
+ * Tests for {@link StructuralKey}.
+ */
+@RunWith(JUnit4.class)
+public class StructuralKeyTest {
+  @Test
+  public void getKeyEqualToOldKey() {
+    assertThat(StructuralKey.of(1234, VarIntCoder.of()).getKey(), equalTo(1234));
+    assertThat(StructuralKey.of("foobar", StringUtf8Coder.of()).getKey(), equalTo("foobar"));
+    assertArrayEquals(StructuralKey.of(new byte[] {2, 9, -22}, ByteArrayCoder.of()).getKey(),
+        new byte[] {2, 9, -22});
+  }
+
+  @Test
+  public void getKeyNotSameInstance() {
+    byte[] original = new byte[] {1, 4, 9, 127, -22};
+    StructuralKey<byte[]> key = StructuralKey.of(original, ByteArrayCoder.of());
+
+    assertThat(key.getKey(), not(theInstance(original)));
+  }
+
+  @Test
+  public void objectEqualsTrueKeyEquals() {
+    StructuralKey<Integer> original = StructuralKey.of(1234, VarIntCoder.of());
+    assertThat(StructuralKey.of(1234, VarIntCoder.of()), equalTo(original));
+  }
+
+  @Test
+  public void objectsNotEqualEncodingsEqualEquals() {
+    byte[] original = new byte[] {1, 4, 9, 127, -22};
+    StructuralKey<byte[]> key = StructuralKey.of(original, ByteArrayCoder.of());
+
+    StructuralKey<byte[]> otherKey =
+        StructuralKey.of(new byte[] {1, 4, 9, 127, -22}, ByteArrayCoder.of());
+    assertThat(key, equalTo(otherKey));
+  }
+
+  @Test
+  public void notEqualEncodingsEqual() {
+    byte[] original = new byte[] {1, 4, 9, 127, -22};
+    StructuralKey<byte[]> key = StructuralKey.of(original, ByteArrayCoder.of());
+
+    StructuralKey<byte[]> otherKey =
+        StructuralKey.of(new byte[] {9, -128, 22}, ByteArrayCoder.of());
+    assertThat(key, not(equalTo(otherKey)));
+  }
+}