public void TestAddRepeatedFieldByDescriptor()
{
TestAllExtensionsLite.Builder builder = TestAllExtensionsLite.CreateBuilder()
.AddExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 0);
Assert.AreEqual(1, builder.GetExtensionCount(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite));
IFieldDescriptorLite f = UnitTestLiteProtoFile.RepeatedInt32ExtensionLite.Descriptor;
builder.AddRepeatedField(f, 123);
Assert.AreEqual(2, builder.GetExtensionCount(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite));
Assert.AreEqual(123, builder.GetExtension(UnitTestLiteProtoFile.RepeatedInt32ExtensionLite, 1));
}