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using System;
using Google.ProtocolBuffers.Collections;
using Google.ProtocolBuffers.TestProtos;
using UnitTest.Issues.TestProtos;
using Xunit;
namespace Google.ProtocolBuffers
{
public class ReusableBuilderTest
{
//Issue 28: Circular message dependencies result in null defaults for DefaultInstance
[Fact]
public void EnsureStaticCicularReference()
{
MyMessageAReferenceB ab = MyMessageAReferenceB.DefaultInstance;
Assert.NotNull(ab);
Assert.NotNull(ab.Value);
MyMessageBReferenceA ba = MyMessageBReferenceA.DefaultInstance;
Assert.NotNull(ba);
Assert.NotNull(ba.Value);
}
[Fact]
public void TestModifyDefaultInstance()
{
//verify that the default instance has correctly been marked as read-only
Assert.Equal(typeof(PopsicleList<bool>), TestAllTypes.DefaultInstance.RepeatedBoolList.GetType());
PopsicleList<bool> list = (PopsicleList<bool>)TestAllTypes.DefaultInstance.RepeatedBoolList;
Assert.True(list.IsReadOnly);
}
[Fact]
public void TestUnmodifiedDefaultInstance()
{
//Simply calling ToBuilder().Build() no longer creates a copy of the message
TestAllTypes.Builder builder = TestAllTypes.DefaultInstance.ToBuilder();
Assert.True(ReferenceEquals(TestAllTypes.DefaultInstance, builder.Build()));
}
[Fact]
public void BuildMultipleWithoutChange()
{
//Calling Build() or BuildPartial() does not require a copy of the message
TestAllTypes.Builder builder = TestAllTypes.DefaultInstance.ToBuilder();
builder.SetDefaultBool(true);
TestAllTypes first = builder.BuildPartial();
//Still the same instance?
Assert.True(ReferenceEquals(first, builder.Build()));
//Still the same instance?
Assert.True(ReferenceEquals(first, builder.BuildPartial().ToBuilder().Build()));
}
[Fact]
public void MergeFromDefaultInstance()
{
TestAllTypes.Builder builder = TestAllTypes.DefaultInstance.ToBuilder();
Assert.True(ReferenceEquals(TestAllTypes.DefaultInstance, builder.Build()));
builder.MergeFrom(TestAllTypes.DefaultInstance);
Assert.True(ReferenceEquals(TestAllTypes.DefaultInstance, builder.Build()));
}
[Fact]
public void BuildNewBuilderIsDefaultInstance()
{
Assert.True(ReferenceEquals(TestAllTypes.DefaultInstance, new TestAllTypes.Builder().Build()));
Assert.True(ReferenceEquals(TestAllTypes.DefaultInstance, TestAllTypes.CreateBuilder().Build()));
//last test, if you clear a builder it reverts to default instance
Assert.True(ReferenceEquals(TestAllTypes.DefaultInstance,
TestAllTypes.CreateBuilder().SetOptionalBool(true).Build().ToBuilder().Clear().Build()));
}
[Fact]
public void BuildModifyAndRebuild()
{
TestAllTypes.Builder b1 = new TestAllTypes.Builder();
b1.SetDefaultInt32(1);
b1.AddRepeatedInt32(2);
b1.SetOptionalForeignMessage(ForeignMessage.DefaultInstance);
TestAllTypes m1 = b1.Build();
b1.SetDefaultInt32(5);
b1.AddRepeatedInt32(6);
b1.SetOptionalForeignMessage(b1.OptionalForeignMessage.ToBuilder().SetC(7));
TestAllTypes m2 = b1.Build();
Assert.Equal("{\"optional_foreign_message\":{},\"repeated_int32\":[2],\"default_int32\":1}", Extensions.ToJson(m1));
Assert.Equal("{\"optional_foreign_message\":{\"c\":7},\"repeated_int32\":[2,6],\"default_int32\":5}", Extensions.ToJson(m2));
}
[Fact]
public void CloneOnChangePrimitive()
{
TestAllTypes.Builder builder = TestAllTypes.DefaultInstance.ToBuilder();
Assert.True(ReferenceEquals(TestAllTypes.DefaultInstance, builder.Build()));
builder.SetDefaultBool(true);
Assert.False(ReferenceEquals(TestAllTypes.DefaultInstance, builder.Build()));
}
[Fact]
public void CloneOnAddRepeatedBool()
{
TestAllTypes.Builder builder = TestAllTypes.DefaultInstance.ToBuilder();
Assert.True(ReferenceEquals(TestAllTypes.DefaultInstance, builder.Build()));
builder.AddRepeatedBool(true);
Assert.False(ReferenceEquals(TestAllTypes.DefaultInstance, builder.Build()));
}
[Fact]
public void CloneOnGetRepeatedBoolList()
{
TestAllTypes.Builder builder = TestAllTypes.DefaultInstance.ToBuilder();
Assert.True(ReferenceEquals(TestAllTypes.DefaultInstance, builder.Build()));
GC.KeepAlive(builder.RepeatedBoolList);
Assert.False(ReferenceEquals(TestAllTypes.DefaultInstance, builder.Build()));
}
[Fact]
public void CloneOnChangeMessage()
{
TestAllTypes.Builder builder = TestAllTypes.DefaultInstance.ToBuilder();
Assert.True(ReferenceEquals(TestAllTypes.DefaultInstance, builder.Build()));
builder.SetOptionalForeignMessage(new ForeignMessage.Builder());
Assert.False(ReferenceEquals(TestAllTypes.DefaultInstance, builder.Build()));
}
[Fact]
public void CloneOnClearMessage()
{
TestAllTypes.Builder builder = TestAllTypes.DefaultInstance.ToBuilder();
Assert.True(ReferenceEquals(TestAllTypes.DefaultInstance, builder.Build()));
builder.ClearOptionalForeignMessage();
Assert.False(ReferenceEquals(TestAllTypes.DefaultInstance, builder.Build()));
}
[Fact]
public void CloneOnGetRepeatedForeignMessageList()
{
TestAllTypes.Builder builder = TestAllTypes.DefaultInstance.ToBuilder();
Assert.True(ReferenceEquals(TestAllTypes.DefaultInstance, builder.Build()));
GC.KeepAlive(builder.RepeatedForeignMessageList);
Assert.False(ReferenceEquals(TestAllTypes.DefaultInstance, builder.Build()));
}
[Fact]
public void CloneOnChangeEnumValue()
{
TestAllTypes.Builder builder = TestAllTypes.DefaultInstance.ToBuilder();
Assert.True(ReferenceEquals(TestAllTypes.DefaultInstance, builder.Build()));
builder.SetOptionalForeignEnum(ForeignEnum.FOREIGN_BAR);
Assert.False(ReferenceEquals(TestAllTypes.DefaultInstance, builder.Build()));
}
[Fact]
public void CloneOnGetRepeatedForeignEnumList()
{
TestAllTypes.Builder builder = TestAllTypes.DefaultInstance.ToBuilder();
Assert.True(ReferenceEquals(TestAllTypes.DefaultInstance, builder.Build()));
GC.KeepAlive(builder.RepeatedForeignEnumList);
Assert.False(ReferenceEquals(TestAllTypes.DefaultInstance, builder.Build()));
}
}
}
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