diff options
Diffstat (limited to 'csharp/src/ProtocolBuffers.Test/UnknownFieldSetTest.cs')
| -rw-r--r-- | csharp/src/ProtocolBuffers.Test/UnknownFieldSetTest.cs | 431 |
1 files changed, 431 insertions, 0 deletions
diff --git a/csharp/src/ProtocolBuffers.Test/UnknownFieldSetTest.cs b/csharp/src/ProtocolBuffers.Test/UnknownFieldSetTest.cs new file mode 100644 index 00000000..97f48ead --- /dev/null +++ b/csharp/src/ProtocolBuffers.Test/UnknownFieldSetTest.cs @@ -0,0 +1,431 @@ +#region Copyright notice and license
+
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc. All rights reserved.
+// http://github.com/jskeet/dotnet-protobufs/
+// Original C++/Java/Python code:
+// http://code.google.com/p/protobuf/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#endregion
+
+using System;
+using System.Collections.Generic;
+using Google.ProtocolBuffers.Descriptors;
+using Google.ProtocolBuffers.TestProtos;
+using NUnit.Framework;
+
+namespace Google.ProtocolBuffers
+{
+ public class UnknownFieldSetTest
+ {
+ private readonly MessageDescriptor descriptor;
+ private readonly TestAllTypes allFields;
+ private readonly ByteString allFieldsData;
+
+ /// <summary>
+ /// An empty message that has been parsed from allFieldsData. So, it has
+ /// unknown fields of every type.
+ /// </summary>
+ private readonly TestEmptyMessage emptyMessage;
+
+ private readonly UnknownFieldSet unknownFields;
+
+ public UnknownFieldSetTest()
+ {
+ descriptor = TestAllTypes.Descriptor;
+ allFields = TestUtil.GetAllSet();
+ allFieldsData = allFields.ToByteString();
+ emptyMessage = TestEmptyMessage.ParseFrom(allFieldsData);
+ unknownFields = emptyMessage.UnknownFields;
+ }
+
+ private UnknownField GetField(String name)
+ {
+ FieldDescriptor field = descriptor.FindDescriptor<FieldDescriptor>(name);
+ Assert.NotNull(field);
+ return unknownFields.FieldDictionary[field.FieldNumber];
+ }
+
+ /// <summary>
+ /// Constructs a protocol buffer which contains fields with all the same
+ /// numbers as allFieldsData except that each field is some other wire
+ /// type.
+ /// </summary>
+ private ByteString GetBizarroData()
+ {
+ UnknownFieldSet.Builder bizarroFields = UnknownFieldSet.CreateBuilder();
+
+ UnknownField varintField = UnknownField.CreateBuilder().AddVarint(1).Build();
+ UnknownField fixed32Field = UnknownField.CreateBuilder().AddFixed32(1).Build();
+
+ foreach (KeyValuePair<int, UnknownField> entry in unknownFields.FieldDictionary)
+ {
+ if (entry.Value.VarintList.Count == 0)
+ {
+ // Original field is not a varint, so use a varint.
+ bizarroFields.AddField(entry.Key, varintField);
+ }
+ else
+ {
+ // Original field *is* a varint, so use something else.
+ bizarroFields.AddField(entry.Key, fixed32Field);
+ }
+ }
+
+ return bizarroFields.Build().ToByteString();
+ }
+
+ // =================================================================
+
+ [Test]
+ public void Varint()
+ {
+ UnknownField field = GetField("optional_int32");
+ Assert.AreEqual(1, field.VarintList.Count);
+ Assert.AreEqual(allFields.OptionalInt32, (long) field.VarintList[0]);
+ }
+
+ [Test]
+ public void Fixed32()
+ {
+ UnknownField field = GetField("optional_fixed32");
+ Assert.AreEqual(1, field.Fixed32List.Count);
+ Assert.AreEqual(allFields.OptionalFixed32, (int) field.Fixed32List[0]);
+ }
+
+ [Test]
+ public void Fixed64()
+ {
+ UnknownField field = GetField("optional_fixed64");
+ Assert.AreEqual(1, field.Fixed64List.Count);
+ Assert.AreEqual((long)allFields.OptionalFixed64, (long)field.Fixed64List[0]);
+ }
+
+ [Test]
+ public void LengthDelimited()
+ {
+ UnknownField field = GetField("optional_bytes");
+ Assert.AreEqual(1, field.LengthDelimitedList.Count);
+ Assert.AreEqual(allFields.OptionalBytes, field.LengthDelimitedList[0]);
+ }
+
+ [Test]
+ public void Group()
+ {
+ FieldDescriptor nestedFieldDescriptor =
+ TestAllTypes.Types.OptionalGroup.Descriptor.FindDescriptor<FieldDescriptor>("a");
+ Assert.NotNull(nestedFieldDescriptor);
+
+ UnknownField field = GetField("optionalgroup");
+ Assert.AreEqual(1, field.GroupList.Count);
+
+ UnknownFieldSet group = field.GroupList[0];
+ Assert.AreEqual(1, group.FieldDictionary.Count);
+ Assert.IsTrue(group.HasField(nestedFieldDescriptor.FieldNumber));
+
+ UnknownField nestedField = group[nestedFieldDescriptor.FieldNumber];
+ Assert.AreEqual(1, nestedField.VarintList.Count);
+ Assert.AreEqual(allFields.OptionalGroup.A, (long) nestedField.VarintList[0]);
+ }
+
+ [Test]
+ public void Serialize()
+ {
+ // Check that serializing the UnknownFieldSet produces the original data again.
+ ByteString data = emptyMessage.ToByteString();
+ Assert.AreEqual(allFieldsData, data);
+ }
+
+ [Test]
+ public void CopyFrom()
+ {
+ TestEmptyMessage message =
+ TestEmptyMessage.CreateBuilder().MergeFrom(emptyMessage).Build();
+
+ Assert.AreEqual(emptyMessage.ToString(), message.ToString());
+ }
+
+ [Test]
+ public void MergeFrom()
+ {
+ TestEmptyMessage source =
+ TestEmptyMessage.CreateBuilder()
+ .SetUnknownFields(
+ UnknownFieldSet.CreateBuilder()
+ .AddField(2,
+ UnknownField.CreateBuilder()
+ .AddVarint(2).Build())
+ .AddField(3,
+ UnknownField.CreateBuilder()
+ .AddVarint(4).Build())
+ .Build())
+ .Build();
+ TestEmptyMessage destination =
+ TestEmptyMessage.CreateBuilder()
+ .SetUnknownFields(
+ UnknownFieldSet.CreateBuilder()
+ .AddField(1,
+ UnknownField.CreateBuilder()
+ .AddVarint(1).Build())
+ .AddField(3,
+ UnknownField.CreateBuilder()
+ .AddVarint(3).Build())
+ .Build())
+ .MergeFrom(source)
+ .Build();
+
+ Assert.AreEqual(
+ "1: 1\n" +
+ "2: 2\n" +
+ "3: 3\n" +
+ "3: 4\n",
+ destination.ToString());
+ }
+
+ [Test]
+ public void Clear()
+ {
+ UnknownFieldSet fields =
+ UnknownFieldSet.CreateBuilder().MergeFrom(unknownFields).Clear().Build();
+ Assert.AreEqual(0, fields.FieldDictionary.Count);
+ }
+
+ [Test]
+ public void ClearMessage()
+ {
+ TestEmptyMessage message =
+ TestEmptyMessage.CreateBuilder().MergeFrom(emptyMessage).Clear().Build();
+ Assert.AreEqual(0, message.SerializedSize);
+ }
+
+ [Test]
+ public void ParseKnownAndUnknown()
+ {
+ // Test mixing known and unknown fields when parsing.
+
+ UnknownFieldSet fields =
+ UnknownFieldSet.CreateBuilder(unknownFields)
+ .AddField(123456,
+ UnknownField.CreateBuilder().AddVarint(654321).Build())
+ .Build();
+
+ ByteString data = fields.ToByteString();
+ TestAllTypes destination = TestAllTypes.ParseFrom(data);
+
+ TestUtil.AssertAllFieldsSet(destination);
+ Assert.AreEqual(1, destination.UnknownFields.FieldDictionary.Count);
+
+ UnknownField field = destination.UnknownFields[123456];
+ Assert.AreEqual(1, field.VarintList.Count);
+ Assert.AreEqual(654321, (long) field.VarintList[0]);
+ }
+
+ [Test]
+ public void WrongTypeTreatedAsUnknown()
+ {
+ // Test that fields of the wrong wire type are treated like unknown fields
+ // when parsing.
+
+ ByteString bizarroData = GetBizarroData();
+ TestAllTypes allTypesMessage = TestAllTypes.ParseFrom(bizarroData);
+ TestEmptyMessage emptyMessage = TestEmptyMessage.ParseFrom(bizarroData);
+
+ // All fields should have been interpreted as unknown, so the debug strings
+ // should be the same.
+ Assert.AreEqual(emptyMessage.ToString(), allTypesMessage.ToString());
+ }
+
+ [Test]
+ public void UnknownExtensions()
+ {
+ // Make sure fields are properly parsed to the UnknownFieldSet even when
+ // they are declared as extension numbers.
+
+ TestEmptyMessageWithExtensions message =
+ TestEmptyMessageWithExtensions.ParseFrom(allFieldsData);
+
+ Assert.AreEqual(unknownFields.FieldDictionary.Count,
+ message.UnknownFields.FieldDictionary.Count);
+ Assert.AreEqual(allFieldsData, message.ToByteString());
+ }
+
+ [Test]
+ public void WrongExtensionTypeTreatedAsUnknown()
+ {
+ // Test that fields of the wrong wire type are treated like unknown fields
+ // when parsing extensions.
+
+ ByteString bizarroData = GetBizarroData();
+ TestAllExtensions allExtensionsMessage = TestAllExtensions.ParseFrom(bizarroData);
+ TestEmptyMessage emptyMessage = TestEmptyMessage.ParseFrom(bizarroData);
+
+ // All fields should have been interpreted as unknown, so the debug strings
+ // should be the same.
+ Assert.AreEqual(emptyMessage.ToString(),
+ allExtensionsMessage.ToString());
+ }
+
+ [Test]
+ public void ParseUnknownEnumValue()
+ {
+ FieldDescriptor singularField =
+ TestAllTypes.Descriptor.FindDescriptor<FieldDescriptor>("optional_nested_enum");
+ FieldDescriptor repeatedField =
+ TestAllTypes.Descriptor.FindDescriptor<FieldDescriptor>("repeated_nested_enum");
+ Assert.NotNull(singularField);
+ Assert.NotNull(repeatedField);
+
+ ByteString data =
+ UnknownFieldSet.CreateBuilder()
+ .AddField(singularField.FieldNumber,
+ UnknownField.CreateBuilder()
+ .AddVarint((int) TestAllTypes.Types.NestedEnum.BAR)
+ .AddVarint(5) // not valid
+ .Build())
+ .AddField(repeatedField.FieldNumber,
+ UnknownField.CreateBuilder()
+ .AddVarint((int) TestAllTypes.Types.NestedEnum.FOO)
+ .AddVarint(4) // not valid
+ .AddVarint((int) TestAllTypes.Types.NestedEnum.BAZ)
+ .AddVarint(6) // not valid
+ .Build())
+ .Build()
+ .ToByteString();
+
+ {
+ TestAllTypes message = TestAllTypes.ParseFrom(data);
+ Assert.AreEqual(TestAllTypes.Types.NestedEnum.BAR,
+ message.OptionalNestedEnum);
+ TestUtil.AssertEqual(new[] {TestAllTypes.Types.NestedEnum.FOO, TestAllTypes.Types.NestedEnum.BAZ},
+ message.RepeatedNestedEnumList);
+ TestUtil.AssertEqual(new[] {5UL}, message.UnknownFields[singularField.FieldNumber].VarintList);
+ TestUtil.AssertEqual(new[] {4UL, 6UL}, message.UnknownFields[repeatedField.FieldNumber].VarintList);
+ }
+
+ {
+ TestAllExtensions message =
+ TestAllExtensions.ParseFrom(data, TestUtil.CreateExtensionRegistry());
+ Assert.AreEqual(TestAllTypes.Types.NestedEnum.BAR,
+ message.GetExtension(Unittest.OptionalNestedEnumExtension));
+ TestUtil.AssertEqual(new[] {TestAllTypes.Types.NestedEnum.FOO, TestAllTypes.Types.NestedEnum.BAZ},
+ message.GetExtension(Unittest.RepeatedNestedEnumExtension));
+ TestUtil.AssertEqual(new[] {5UL}, message.UnknownFields[singularField.FieldNumber].VarintList);
+ TestUtil.AssertEqual(new[] {4UL, 6UL}, message.UnknownFields[repeatedField.FieldNumber].VarintList);
+ }
+ }
+
+ [Test]
+ public void LargeVarint()
+ {
+ ByteString data =
+ UnknownFieldSet.CreateBuilder()
+ .AddField(1,
+ UnknownField.CreateBuilder()
+ .AddVarint(0x7FFFFFFFFFFFFFFFL)
+ .Build())
+ .Build()
+ .ToByteString();
+ UnknownFieldSet parsed = UnknownFieldSet.ParseFrom(data);
+ UnknownField field = parsed[1];
+ Assert.AreEqual(1, field.VarintList.Count);
+ Assert.AreEqual(0x7FFFFFFFFFFFFFFFUL, field.VarintList[0]);
+ }
+
+ [Test]
+ public void EqualsAndHashCode()
+ {
+ UnknownField fixed32Field = UnknownField.CreateBuilder().AddFixed32(1).Build();
+ UnknownField fixed64Field = UnknownField.CreateBuilder().AddFixed64(1).Build();
+ UnknownField varIntField = UnknownField.CreateBuilder().AddVarint(1).Build();
+ UnknownField lengthDelimitedField =
+ UnknownField.CreateBuilder().AddLengthDelimited(ByteString.Empty).Build();
+ UnknownField groupField = UnknownField.CreateBuilder().AddGroup(unknownFields).Build();
+
+ UnknownFieldSet a = UnknownFieldSet.CreateBuilder().AddField(1, fixed32Field).Build();
+ UnknownFieldSet b = UnknownFieldSet.CreateBuilder().AddField(1, fixed64Field).Build();
+ UnknownFieldSet c = UnknownFieldSet.CreateBuilder().AddField(1, varIntField).Build();
+ UnknownFieldSet d = UnknownFieldSet.CreateBuilder().AddField(1, lengthDelimitedField).Build();
+ UnknownFieldSet e = UnknownFieldSet.CreateBuilder().AddField(1, groupField).Build();
+
+ CheckEqualsIsConsistent(a);
+ CheckEqualsIsConsistent(b);
+ CheckEqualsIsConsistent(c);
+ CheckEqualsIsConsistent(d);
+ CheckEqualsIsConsistent(e);
+
+ CheckNotEqual(a, b);
+ CheckNotEqual(a, c);
+ CheckNotEqual(a, d);
+ CheckNotEqual(a, e);
+ CheckNotEqual(b, c);
+ CheckNotEqual(b, d);
+ CheckNotEqual(b, e);
+ CheckNotEqual(c, d);
+ CheckNotEqual(c, e);
+ CheckNotEqual(d, e);
+ }
+
+ /// <summary>
+ /// Asserts that the given field sets are not equal and have different
+ /// hash codes.
+ /// </summary>
+ /// <remarks>
+ /// It's valid for non-equal objects to have the same hash code, so
+ /// this test is stricter than it needs to be. However, this should happen
+ /// relatively rarely.
+ /// </remarks>
+ /// <param name="s1"></param>
+ /// <param name="s2"></param>
+ private static void CheckNotEqual(UnknownFieldSet s1, UnknownFieldSet s2)
+ {
+ String equalsError = string.Format("{0} should not be equal to {1}", s1, s2);
+ Assert.IsFalse(s1.Equals(s2), equalsError);
+ Assert.IsFalse(s2.Equals(s1), equalsError);
+
+ Assert.IsFalse(s1.GetHashCode() == s2.GetHashCode(),
+ string.Format("{0} should have a different hash code from {1}", s1, s2));
+ }
+
+ /**
+ * Asserts that the given field sets are equal and have identical hash codes.
+ */
+
+ private static void CheckEqualsIsConsistent(UnknownFieldSet set)
+ {
+ // Object should be equal to itself.
+ Assert.AreEqual(set, set);
+
+ // Object should be equal to a copy of itself.
+ UnknownFieldSet copy = UnknownFieldSet.CreateBuilder(set).Build();
+ Assert.AreEqual(set, copy);
+ Assert.AreEqual(copy, set);
+ Assert.AreEqual(set.GetHashCode(), copy.GetHashCode());
+ }
+ }
+}
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