Java: Implements union generation.

mojo/android/javatests/src/org/chromium/mojo/bindings/UnionTest.java

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.mojo.bindings;
+
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.chromium.mojo.MojoTestCase;
+import org.chromium.mojo.system.impl.CoreImpl;
+import org.chromium.mojom.mojo.test.AnEnum;
+import org.chromium.mojom.mojo.test.ObjectUnion;
+import org.chromium.mojom.mojo.test.PodUnion;
+
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * Testing union generation. Generated classes are defined in
+ * mojo/public/interfaces/bindings/tests/test_unions.mojom
+ */
+public class UnionTest extends MojoTestCase {
+    @SmallTest
+    public void testTagGeneration() {
+        // Check that all tag are different.
+        Set<Integer> tags = new HashSet<>();
+        tags.add(PodUnion.Tag.FInt8);
+        tags.add(PodUnion.Tag.FInt8Other);
+        tags.add(PodUnion.Tag.FUint8);
+        tags.add(PodUnion.Tag.FInt16);
+        tags.add(PodUnion.Tag.FUint16);
+        tags.add(PodUnion.Tag.FInt32);
+        tags.add(PodUnion.Tag.FUint32);
+        tags.add(PodUnion.Tag.FInt64);
+        tags.add(PodUnion.Tag.FUint64);
+        tags.add(PodUnion.Tag.FFloat);
+        tags.add(PodUnion.Tag.FDouble);
+        tags.add(PodUnion.Tag.FBool);
+        tags.add(PodUnion.Tag.FEnum);
+        assertEquals(13, tags.size());
+    }
+
+    @SmallTest
+    public void testPlainOldDataGetterSetter() {
+        PodUnion pod = new PodUnion();
+
+        pod.setFInt8((byte) 10);
+        assertEquals((byte) 10, pod.getFInt8());
+        assertEquals(PodUnion.Tag.FInt8, pod.which());
+
+        pod.setFUint8((byte) 11);
+        assertEquals((byte) 11, pod.getFUint8());
+        assertEquals(PodUnion.Tag.FUint8, pod.which());
+
+        pod.setFInt16((short) 12);
+        assertEquals((short) 12, pod.getFInt16());
+        assertEquals(PodUnion.Tag.FInt16, pod.which());
+
+        pod.setFUint16((short) 13);
+        assertEquals((short) 13, pod.getFUint16());
+        assertEquals(PodUnion.Tag.FUint16, pod.which());
+
+        pod.setFInt32(14);
+        assertEquals(14, pod.getFInt32());
+        assertEquals(PodUnion.Tag.FInt32, pod.which());
+
+        pod.setFUint32(15);
+        assertEquals(15, pod.getFUint32());
+        assertEquals(PodUnion.Tag.FUint32, pod.which());
+
+        pod.setFInt64(16);
+        assertEquals(16, pod.getFInt64());
+        assertEquals(PodUnion.Tag.FInt64, pod.which());
+
+        pod.setFUint64(17);
+        assertEquals(17, pod.getFUint64());
+        assertEquals(PodUnion.Tag.FUint64, pod.which());
+
+        pod.setFFloat(1.5f);
+        assertEquals(1.5f, pod.getFFloat());
+        assertEquals(PodUnion.Tag.FFloat, pod.which());
+
+        pod.setFDouble(1.9);
+        assertEquals(1.9, pod.getFDouble());
+        assertEquals(PodUnion.Tag.FDouble, pod.which());
+
+        pod.setFBool(true);
+        assertTrue(pod.getFBool());
+        pod.setFBool(false);
+        assertFalse(pod.getFBool());
+        assertEquals(PodUnion.Tag.FBool, pod.which());
+
+        pod.setFEnum(AnEnum.SECOND);
+        assertEquals(AnEnum.SECOND, pod.getFEnum());
+        assertEquals(PodUnion.Tag.FEnum, pod.which());
+    }
+
+    @SmallTest
+    public void testEquals() {
+        PodUnion pod1 = new PodUnion();
+        PodUnion pod2 = new PodUnion();
+
+        pod1.setFInt8((byte) 10);
+        pod2.setFInt8((byte) 10);
+        assertEquals(pod1, pod2);
+
+        pod2.setFInt8((byte) 11);
+        assertFalse(pod1.equals(pod2));
+
+        pod2.setFInt8Other((byte) 10);
+        assertFalse(pod1.equals(pod2));
+    }
+
+    @SmallTest
+    public void testPodSerialization() {
+        PodUnion pod1 = new PodUnion();
+        pod1.setFInt8((byte) 10);
+
+        PodUnion pod2 = PodUnion.deserialize(pod1.serialize(CoreImpl.getInstance()));
+
+        assertEquals((byte) 10, pod2.getFInt8());
+        assertEquals(PodUnion.Tag.FInt8, pod2.which());
+    }
+
+    @SmallTest
+    public void testEnumSerialization() {
+        PodUnion pod1 = new PodUnion();
+        pod1.setFEnum(AnEnum.SECOND);
+
+        PodUnion pod2 = PodUnion.deserialize(pod1.serialize(CoreImpl.getInstance()));
+
+        assertEquals(AnEnum.SECOND, pod2.getFEnum());
+        assertEquals(PodUnion.Tag.FEnum, pod2.which());
+    }
+
+    @SmallTest
+    public void testStringGetterSetter() {
+        ObjectUnion ou = new ObjectUnion();
+        ou.setFString("hello world");
+
+        assertEquals("hello world", ou.getFString());
+        assertEquals(ObjectUnion.Tag.FString, ou.which());
+    }
+
+    @SmallTest
+    public void testStringEquals() {
+        ObjectUnion ou1 = new ObjectUnion();
+        ObjectUnion ou2 = new ObjectUnion();
+
+        ou1.setFString("hello world");
+        ou2.setFString("hello world");
+        assertEquals(ou1, ou2);
+
+        ou2.setFString("hello universe");
+        assertFalse(ou1.equals(ou2));
+    }
+
+    @SmallTest
+    public void testStringSerialization() {
+        ObjectUnion ou1 = new ObjectUnion();
+        ou1.setFString("hello world");
+
+        ObjectUnion ou2 = ObjectUnion.deserialize(ou1.serialize(CoreImpl.getInstance()));
+
+        assertEquals("hello world", ou2.getFString());
+        assertEquals(ObjectUnion.Tag.FString, ou2.which());
+    }
+}