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Viewing changes to java/src/test/java/com/google/protobuf/SingleFieldBuilderTest.java

  • Committer: Bazaar Package Importer
  • Author(s): Matthias Klose
  • Date: 2011-05-31 14:41:47 UTC
  • mfrom: (2.2.8 sid)
  • Revision ID: james.westby@ubuntu.com-20110531144147-s41g5fozgvyo462l
Tags: 2.4.0a-2ubuntu1
* Merge with Debian; remaining changes:
  - Fix linking with -lpthread.

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java/src/test/java/com/google/protobuf/SingleFieldBuilderTest.java
 
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// Protocol Buffers - Google's data interchange format
 
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// Copyright 2008 Google Inc.  All rights reserved.
 
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// http://code.google.com/p/protobuf/
 
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//
 
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// Redistribution and use in source and binary forms, with or without
 
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// modification, are permitted provided that the following conditions are
 
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// met:
 
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//
 
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//     * Redistributions of source code must retain the above copyright
 
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// notice, this list of conditions and the following disclaimer.
 
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//     * Redistributions in binary form must reproduce the above
 
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// copyright notice, this list of conditions and the following disclaimer
 
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// in the documentation and/or other materials provided with the
 
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// distribution.
 
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//     * Neither the name of Google Inc. nor the names of its
 
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// contributors may be used to endorse or promote products derived from
 
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// this software without specific prior written permission.
 
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//
 
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
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package com.google.protobuf;
 
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import protobuf_unittest.UnittestProto.TestAllTypes;
 
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import protobuf_unittest.UnittestProto.TestAllTypesOrBuilder;
 
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import junit.framework.TestCase;
 
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/**
 
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 * Tests for {@link SingleFieldBuilder}. This tests basic functionality.
 
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 * More extensive testing is provided via other tests that exercise the
 
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 * builder.
 
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 *
 
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 * @author jonp@google.com (Jon Perlow)
 
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 */
 
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public class SingleFieldBuilderTest extends TestCase {
 
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  public void testBasicUseAndInvalidations() {
 
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    TestUtil.MockBuilderParent mockParent = new TestUtil.MockBuilderParent();
 
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    SingleFieldBuilder<TestAllTypes, TestAllTypes.Builder,
 
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        TestAllTypesOrBuilder> builder =
 
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        new SingleFieldBuilder<TestAllTypes, TestAllTypes.Builder,
 
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            TestAllTypesOrBuilder>(
 
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            TestAllTypes.getDefaultInstance(),
 
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            mockParent,
 
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            false);
 
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    assertSame(TestAllTypes.getDefaultInstance(), builder.getMessage());
 
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    assertEquals(TestAllTypes.getDefaultInstance(),
 
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        builder.getBuilder().buildPartial());
 
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    assertEquals(0, mockParent.getInvalidationCount());
 
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    builder.getBuilder().setOptionalInt32(10);
 
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    assertEquals(0, mockParent.getInvalidationCount());
 
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    TestAllTypes message = builder.build();
 
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    assertEquals(10, message.getOptionalInt32());
 
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    // Test that we receive invalidations now that build has been called.
 
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    assertEquals(0, mockParent.getInvalidationCount());
 
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    builder.getBuilder().setOptionalInt32(20);
 
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    assertEquals(1, mockParent.getInvalidationCount());
 
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    // Test that we don't keep getting invalidations on every change
 
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    builder.getBuilder().setOptionalInt32(30);
 
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    assertEquals(1, mockParent.getInvalidationCount());
 
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  }
 
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  public void testSetMessage() {
 
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    TestUtil.MockBuilderParent mockParent = new TestUtil.MockBuilderParent();
 
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    SingleFieldBuilder<TestAllTypes, TestAllTypes.Builder,
 
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        TestAllTypesOrBuilder> builder =
 
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        new SingleFieldBuilder<TestAllTypes, TestAllTypes.Builder,
 
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            TestAllTypesOrBuilder>(
 
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            TestAllTypes.getDefaultInstance(),
 
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            mockParent,
 
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            false);
 
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    builder.setMessage(TestAllTypes.newBuilder().setOptionalInt32(0).build());
 
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    assertEquals(0, builder.getMessage().getOptionalInt32());
 
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    // Update message using the builder
 
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    builder.getBuilder().setOptionalInt32(1);
 
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    assertEquals(0, mockParent.getInvalidationCount());
 
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    assertEquals(1, builder.getBuilder().getOptionalInt32());
 
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    assertEquals(1, builder.getMessage().getOptionalInt32());
 
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    builder.build();
 
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    builder.getBuilder().setOptionalInt32(2);
 
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    assertEquals(2, builder.getBuilder().getOptionalInt32());
 
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    assertEquals(2, builder.getMessage().getOptionalInt32());
 
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    // Make sure message stays cached
 
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    assertSame(builder.getMessage(), builder.getMessage());
 
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  }
 
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  public void testClear() {
 
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    TestUtil.MockBuilderParent mockParent = new TestUtil.MockBuilderParent();
 
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    SingleFieldBuilder<TestAllTypes, TestAllTypes.Builder,
 
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        TestAllTypesOrBuilder> builder =
 
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        new SingleFieldBuilder<TestAllTypes, TestAllTypes.Builder,
 
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            TestAllTypesOrBuilder>(
 
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            TestAllTypes.getDefaultInstance(),
 
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            mockParent,
 
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            false);
 
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    builder.setMessage(TestAllTypes.newBuilder().setOptionalInt32(0).build());
 
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    assertNotSame(TestAllTypes.getDefaultInstance(), builder.getMessage());
 
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    builder.clear();
 
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    assertSame(TestAllTypes.getDefaultInstance(), builder.getMessage());
 
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    builder.getBuilder().setOptionalInt32(1);
 
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    assertNotSame(TestAllTypes.getDefaultInstance(), builder.getMessage());
 
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    builder.clear();
 
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    assertSame(TestAllTypes.getDefaultInstance(), builder.getMessage());
 
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  }
 
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  public void testMerge() {
 
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    TestUtil.MockBuilderParent mockParent = new TestUtil.MockBuilderParent();
 
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    SingleFieldBuilder<TestAllTypes, TestAllTypes.Builder,
 
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        TestAllTypesOrBuilder> builder =
 
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        new SingleFieldBuilder<TestAllTypes, TestAllTypes.Builder,
 
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            TestAllTypesOrBuilder>(
 
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            TestAllTypes.getDefaultInstance(),
 
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            mockParent,
 
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            false);
 
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    // Merge into default field.
 
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    builder.mergeFrom(TestAllTypes.getDefaultInstance());
 
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    assertSame(TestAllTypes.getDefaultInstance(), builder.getMessage());
 
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    // Merge into non-default field on existing builder.
 
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    builder.getBuilder().setOptionalInt32(2);
 
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    builder.mergeFrom(TestAllTypes.newBuilder()
 
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        .setOptionalDouble(4.0)
 
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        .buildPartial());
 
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    assertEquals(2, builder.getMessage().getOptionalInt32());
 
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    assertEquals(4.0, builder.getMessage().getOptionalDouble());
 
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    // Merge into non-default field on existing message
 
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    builder.setMessage(TestAllTypes.newBuilder()
 
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        .setOptionalInt32(10)
 
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        .buildPartial());
 
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    builder.mergeFrom(TestAllTypes.newBuilder()
 
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        .setOptionalDouble(5.0)
 
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        .buildPartial());
 
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    assertEquals(10, builder.getMessage().getOptionalInt32());
 
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    assertEquals(5.0, builder.getMessage().getOptionalDouble());
 
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  }
 
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}