1 // Protocol Buffers - Google's data interchange format 2 // Copyright 2008 Google Inc. All rights reserved. 3 // https://developers.google.com/protocol-buffers/ 4 // 5 // Redistribution and use in source and binary forms, with or without 6 // modification, are permitted provided that the following conditions are 7 // met: 8 // 9 // * Redistributions of source code must retain the above copyright 10 // notice, this list of conditions and the following disclaimer. 11 // * Redistributions in binary form must reproduce the above 12 // copyright notice, this list of conditions and the following disclaimer 13 // in the documentation and/or other materials provided with the 14 // distribution. 15 // * Neither the name of Google Inc. nor the names of its 16 // contributors may be used to endorse or promote products derived from 17 // this software without specific prior written permission. 18 // 19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 31 package com.google.protobuf; 32 33 import protobuf_unittest.UnittestProto.TestAllTypes; 34 import protobuf_unittest.UnittestProto.TestAllTypesOrBuilder; 35 import junit.framework.TestCase; 36 37 /** 38 * Tests for {@link SingleFieldBuilderV3}. This tests basic functionality. More extensive testing is 39 * provided via other tests that exercise the builder. 40 * 41 * @author jonp@google.com (Jon Perlow) 42 */ 43 public class SingleFieldBuilderV3Test extends TestCase { 44 testBasicUseAndInvalidations()45 public void testBasicUseAndInvalidations() { 46 TestUtil.MockBuilderParent mockParent = new TestUtil.MockBuilderParent(); 47 SingleFieldBuilderV3<TestAllTypes, TestAllTypes.Builder, TestAllTypesOrBuilder> builder = 48 new SingleFieldBuilderV3<TestAllTypes, TestAllTypes.Builder, TestAllTypesOrBuilder>( 49 TestAllTypes.getDefaultInstance(), mockParent, false); 50 assertSame(TestAllTypes.getDefaultInstance(), builder.getMessage()); 51 assertEquals(TestAllTypes.getDefaultInstance(), builder.getBuilder().buildPartial()); 52 assertEquals(0, mockParent.getInvalidationCount()); 53 54 builder.getBuilder().setOptionalInt32(10); 55 assertEquals(0, mockParent.getInvalidationCount()); 56 TestAllTypes message = builder.build(); 57 assertEquals(10, message.getOptionalInt32()); 58 59 // Test that we receive invalidations now that build has been called. 60 assertEquals(0, mockParent.getInvalidationCount()); 61 builder.getBuilder().setOptionalInt32(20); 62 assertEquals(1, mockParent.getInvalidationCount()); 63 64 // Test that we don't keep getting invalidations on every change 65 builder.getBuilder().setOptionalInt32(30); 66 assertEquals(1, mockParent.getInvalidationCount()); 67 } 68 testSetMessage()69 public void testSetMessage() { 70 TestUtil.MockBuilderParent mockParent = new TestUtil.MockBuilderParent(); 71 SingleFieldBuilderV3<TestAllTypes, TestAllTypes.Builder, TestAllTypesOrBuilder> builder = 72 new SingleFieldBuilderV3<TestAllTypes, TestAllTypes.Builder, TestAllTypesOrBuilder>( 73 TestAllTypes.getDefaultInstance(), mockParent, false); 74 builder.setMessage(TestAllTypes.newBuilder().setOptionalInt32(0).build()); 75 assertEquals(0, builder.getMessage().getOptionalInt32()); 76 77 // Update message using the builder 78 builder.getBuilder().setOptionalInt32(1); 79 assertEquals(0, mockParent.getInvalidationCount()); 80 assertEquals(1, builder.getBuilder().getOptionalInt32()); 81 assertEquals(1, builder.getMessage().getOptionalInt32()); 82 builder.build(); 83 builder.getBuilder().setOptionalInt32(2); 84 assertEquals(2, builder.getBuilder().getOptionalInt32()); 85 assertEquals(2, builder.getMessage().getOptionalInt32()); 86 87 // Make sure message stays cached 88 assertSame(builder.getMessage(), builder.getMessage()); 89 } 90 testClear()91 public void testClear() { 92 TestUtil.MockBuilderParent mockParent = new TestUtil.MockBuilderParent(); 93 SingleFieldBuilderV3<TestAllTypes, TestAllTypes.Builder, TestAllTypesOrBuilder> builder = 94 new SingleFieldBuilderV3<TestAllTypes, TestAllTypes.Builder, TestAllTypesOrBuilder>( 95 TestAllTypes.getDefaultInstance(), mockParent, false); 96 builder.setMessage(TestAllTypes.newBuilder().setOptionalInt32(0).build()); 97 assertNotSame(TestAllTypes.getDefaultInstance(), builder.getMessage()); 98 builder.clear(); 99 assertSame(TestAllTypes.getDefaultInstance(), builder.getMessage()); 100 101 builder.getBuilder().setOptionalInt32(1); 102 assertNotSame(TestAllTypes.getDefaultInstance(), builder.getMessage()); 103 builder.clear(); 104 assertSame(TestAllTypes.getDefaultInstance(), builder.getMessage()); 105 } 106 testMerge()107 public void testMerge() { 108 TestUtil.MockBuilderParent mockParent = new TestUtil.MockBuilderParent(); 109 SingleFieldBuilderV3<TestAllTypes, TestAllTypes.Builder, TestAllTypesOrBuilder> builder = 110 new SingleFieldBuilderV3<TestAllTypes, TestAllTypes.Builder, TestAllTypesOrBuilder>( 111 TestAllTypes.getDefaultInstance(), mockParent, false); 112 113 // Merge into default field. 114 builder.mergeFrom(TestAllTypes.getDefaultInstance()); 115 assertSame(TestAllTypes.getDefaultInstance(), builder.getMessage()); 116 117 // Merge into non-default field on existing builder. 118 builder.getBuilder().setOptionalInt32(2); 119 builder.mergeFrom(TestAllTypes.newBuilder().setOptionalDouble(4.0).buildPartial()); 120 assertEquals(2, builder.getMessage().getOptionalInt32()); 121 assertEquals(4.0, builder.getMessage().getOptionalDouble(), 0.0); 122 123 // Merge into non-default field on existing message 124 builder.setMessage(TestAllTypes.newBuilder().setOptionalInt32(10).buildPartial()); 125 builder.mergeFrom(TestAllTypes.newBuilder().setOptionalDouble(5.0).buildPartial()); 126 assertEquals(10, builder.getMessage().getOptionalInt32()); 127 assertEquals(5.0, builder.getMessage().getOptionalDouble(), 0.0); 128 } 129 } 130