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#region Copyright notice and license
// Protocol Buffers - Google's data interchange format
// Copyright 2015 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// 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;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using Google.Protobuf.TestProtos;
using Google.Protobuf.WellKnownTypes;
using NUnit.Framework;
namespace Google.Protobuf.Collections
{
public class RepeatedFieldTest
{
[Test]
public void NullValuesRejected()
{
var list = new RepeatedField<string>();
Assert.Throws<ArgumentNullException>(() => list.Add((string)null));
Assert.Throws<ArgumentNullException>(() => list.Add((IEnumerable<string>)null));
Assert.Throws<ArgumentNullException>(() => list.Add((RepeatedField<string>)null));
Assert.Throws<ArgumentNullException>(() => list.Contains(null));
Assert.Throws<ArgumentNullException>(() => list.IndexOf(null));
}
[Test]
public void Add_SingleItem()
{
var list = new RepeatedField<string>();
list.Add("foo");
Assert.AreEqual(1, list.Count);
Assert.AreEqual("foo", list[0]);
}
[Test]
public void Add_Sequence()
{
var list = new RepeatedField<string>();
list.Add(new[] { "foo", "bar" });
Assert.AreEqual(2, list.Count);
Assert.AreEqual("foo", list[0]);
Assert.AreEqual("bar", list[1]);
}
[Test]
public void Add_RepeatedField()
{
var list = new RepeatedField<string> { "original" };
list.Add(new RepeatedField<string> { "foo", "bar" });
Assert.AreEqual(3, list.Count);
Assert.AreEqual("original", list[0]);
Assert.AreEqual("foo", list[1]);
Assert.AreEqual("bar", list[2]);
}
[Test]
public void RemoveAt_Valid()
{
var list = new RepeatedField<string> { "first", "second", "third" };
list.RemoveAt(1);
CollectionAssert.AreEqual(new[] { "first", "third" }, list);
// Just check that these don't throw...
list.RemoveAt(list.Count - 1); // Now the count will be 1...
list.RemoveAt(0);
Assert.AreEqual(0, list.Count);
}
[Test]
public void RemoveAt_Invalid()
{
var list = new RepeatedField<string> { "first", "second", "third" };
Assert.Throws<ArgumentOutOfRangeException>(() => list.RemoveAt(-1));
Assert.Throws<ArgumentOutOfRangeException>(() => list.RemoveAt(3));
}
[Test]
public void Insert_Valid()
{
var list = new RepeatedField<string> { "first", "second" };
list.Insert(1, "middle");
CollectionAssert.AreEqual(new[] { "first", "middle", "second" }, list);
list.Insert(3, "end");
CollectionAssert.AreEqual(new[] { "first", "middle", "second", "end" }, list);
list.Insert(0, "start");
CollectionAssert.AreEqual(new[] { "start", "first", "middle", "second", "end" }, list);
}
[Test]
public void Insert_Invalid()
{
var list = new RepeatedField<string> { "first", "second" };
Assert.Throws<ArgumentOutOfRangeException>(() => list.Insert(-1, "foo"));
Assert.Throws<ArgumentOutOfRangeException>(() => list.Insert(3, "foo"));
Assert.Throws<ArgumentNullException>(() => list.Insert(0, null));
}
[Test]
public void Equals_RepeatedField()
{
var list = new RepeatedField<string> { "first", "second" };
Assert.IsFalse(list.Equals((RepeatedField<string>) null));
Assert.IsTrue(list.Equals(list));
Assert.IsFalse(list.Equals(new RepeatedField<string> { "first", "third" }));
Assert.IsFalse(list.Equals(new RepeatedField<string> { "first" }));
Assert.IsTrue(list.Equals(new RepeatedField<string> { "first", "second" }));
}
[Test]
public void Equals_Object()
{
var list = new RepeatedField<string> { "first", "second" };
Assert.IsFalse(list.Equals((object) null));
Assert.IsTrue(list.Equals((object) list));
Assert.IsFalse(list.Equals((object) new RepeatedField<string> { "first", "third" }));
Assert.IsFalse(list.Equals((object) new RepeatedField<string> { "first" }));
Assert.IsTrue(list.Equals((object) new RepeatedField<string> { "first", "second" }));
Assert.IsFalse(list.Equals(new object()));
}
[Test]
public void GetEnumerator_GenericInterface()
{
IEnumerable<string> list = new RepeatedField<string> { "first", "second" };
// Select gets rid of the optimizations in ToList...
CollectionAssert.AreEqual(new[] { "first", "second" }, list.Select(x => x).ToList());
}
[Test]
public void GetEnumerator_NonGenericInterface()
{
IEnumerable list = new RepeatedField<string> { "first", "second" };
CollectionAssert.AreEqual(new[] { "first", "second" }, list.Cast<object>().ToList());
}
[Test]
public void CopyTo()
{
var list = new RepeatedField<string> { "first", "second" };
string[] stringArray = new string[4];
list.CopyTo(stringArray, 1);
CollectionAssert.AreEqual(new[] { null, "first", "second", null }, stringArray);
}
[Test]
public void Indexer_Get()
{
var list = new RepeatedField<string> { "first", "second" };
Assert.AreEqual("first", list[0]);
Assert.AreEqual("second", list[1]);
Assert.Throws<ArgumentOutOfRangeException>(() => list[-1].GetHashCode());
Assert.Throws<ArgumentOutOfRangeException>(() => list[2].GetHashCode());
}
[Test]
public void Indexer_Set()
{
var list = new RepeatedField<string> { "first", "second" };
list[0] = "changed";
Assert.AreEqual("changed", list[0]);
Assert.Throws<ArgumentNullException>(() => list[0] = null);
Assert.Throws<ArgumentOutOfRangeException>(() => list[-1] = "bad");
Assert.Throws<ArgumentOutOfRangeException>(() => list[2] = "bad");
}
[Test]
public void Clone_ReturnsMutable()
{
var list = new RepeatedField<int> { 0 };
var clone = list.Clone();
clone[0] = 1;
}
[Test]
public void Enumerator()
{
var list = new RepeatedField<string> { "first", "second" };
using (var enumerator = list.GetEnumerator())
{
Assert.IsTrue(enumerator.MoveNext());
Assert.AreEqual("first", enumerator.Current);
Assert.IsTrue(enumerator.MoveNext());
Assert.AreEqual("second", enumerator.Current);
Assert.IsFalse(enumerator.MoveNext());
Assert.IsFalse(enumerator.MoveNext());
}
}
[Test]
public void AddEntriesFrom_PackedInt32()
{
uint packedTag = WireFormat.MakeTag(10, WireFormat.WireType.LengthDelimited);
var stream = new MemoryStream();
var output = new CodedOutputStream(stream);
var length = CodedOutputStream.ComputeInt32Size(10)
+ CodedOutputStream.ComputeInt32Size(999)
+ CodedOutputStream.ComputeInt32Size(-1000);
output.WriteTag(packedTag);
output.WriteRawVarint32((uint) length);
output.WriteInt32(10);
output.WriteInt32(999);
output.WriteInt32(-1000);
output.Flush();
stream.Position = 0;
// Deliberately "expecting" a non-packed tag, but we detect that the data is
// actually packed.
uint nonPackedTag = WireFormat.MakeTag(10, WireFormat.WireType.LengthDelimited);
var field = new RepeatedField<int>();
var input = new CodedInputStream(stream);
input.AssertNextTag(packedTag);
field.AddEntriesFrom(input, FieldCodec.ForInt32(nonPackedTag));
CollectionAssert.AreEqual(new[] { 10, 999, -1000 }, field);
Assert.IsTrue(input.IsAtEnd);
}
[Test]
public void AddEntriesFrom_NonPackedInt32()
{
uint nonPackedTag = WireFormat.MakeTag(10, WireFormat.WireType.Varint);
var stream = new MemoryStream();
var output = new CodedOutputStream(stream);
output.WriteTag(nonPackedTag);
output.WriteInt32(10);
output.WriteTag(nonPackedTag);
output.WriteInt32(999);
output.WriteTag(nonPackedTag);
output.WriteInt32(-1000); // Just for variety...
output.Flush();
stream.Position = 0;
// Deliberately "expecting" a packed tag, but we detect that the data is
// actually not packed.
uint packedTag = WireFormat.MakeTag(10, WireFormat.WireType.LengthDelimited);
var field = new RepeatedField<int>();
var input = new CodedInputStream(stream);
input.AssertNextTag(nonPackedTag);
field.AddEntriesFrom(input, FieldCodec.ForInt32(packedTag));
CollectionAssert.AreEqual(new[] { 10, 999, -1000 }, field);
Assert.IsTrue(input.IsAtEnd);
}
[Test]
public void AddEntriesFrom_String()
{
uint tag = WireFormat.MakeTag(10, WireFormat.WireType.LengthDelimited);
var stream = new MemoryStream();
var output = new CodedOutputStream(stream);
output.WriteTag(tag);
output.WriteString("Foo");
output.WriteTag(tag);
output.WriteString("");
output.WriteTag(tag);
output.WriteString("Bar");
output.Flush();
stream.Position = 0;
var field = new RepeatedField<string>();
var input = new CodedInputStream(stream);
input.AssertNextTag(tag);
field.AddEntriesFrom(input, FieldCodec.ForString(tag));
CollectionAssert.AreEqual(new[] { "Foo", "", "Bar" }, field);
Assert.IsTrue(input.IsAtEnd);
}
[Test]
public void AddEntriesFrom_Message()
{
var message1 = new ForeignMessage { C = 2000 };
var message2 = new ForeignMessage { C = -250 };
uint tag = WireFormat.MakeTag(10, WireFormat.WireType.LengthDelimited);
var stream = new MemoryStream();
var output = new CodedOutputStream(stream);
output.WriteTag(tag);
output.WriteMessage(message1);
output.WriteTag(tag);
output.WriteMessage(message2);
output.Flush();
stream.Position = 0;
var field = new RepeatedField<ForeignMessage>();
var input = new CodedInputStream(stream);
input.AssertNextTag(tag);
field.AddEntriesFrom(input, FieldCodec.ForMessage(tag, ForeignMessage.Parser));
CollectionAssert.AreEqual(new[] { message1, message2}, field);
Assert.IsTrue(input.IsAtEnd);
}
[Test]
public void WriteTo_PackedInt32()
{
uint tag = WireFormat.MakeTag(10, WireFormat.WireType.LengthDelimited);
var field = new RepeatedField<int> { 10, 1000, 1000000 };
var stream = new MemoryStream();
var output = new CodedOutputStream(stream);
field.WriteTo(output, FieldCodec.ForInt32(tag));
output.Flush();
stream.Position = 0;
var input = new CodedInputStream(stream);
input.AssertNextTag(tag);
var length = input.ReadLength();
Assert.AreEqual(10, input.ReadInt32());
Assert.AreEqual(1000, input.ReadInt32());
Assert.AreEqual(1000000, input.ReadInt32());
Assert.IsTrue(input.IsAtEnd);
Assert.AreEqual(1 + CodedOutputStream.ComputeLengthSize(length) + length, stream.Length);
}
[Test]
public void WriteTo_NonPackedInt32()
{
uint tag = WireFormat.MakeTag(10, WireFormat.WireType.Varint);
var field = new RepeatedField<int> { 10, 1000, 1000000};
var stream = new MemoryStream();
var output = new CodedOutputStream(stream);
field.WriteTo(output, FieldCodec.ForInt32(tag));
output.Flush();
stream.Position = 0;
var input = new CodedInputStream(stream);
input.AssertNextTag(tag);
Assert.AreEqual(10, input.ReadInt32());
input.AssertNextTag(tag);
Assert.AreEqual(1000, input.ReadInt32());
input.AssertNextTag(tag);
Assert.AreEqual(1000000, input.ReadInt32());
Assert.IsTrue(input.IsAtEnd);
}
[Test]
public void WriteTo_String()
{
uint tag = WireFormat.MakeTag(10, WireFormat.WireType.LengthDelimited);
var field = new RepeatedField<string> { "Foo", "", "Bar" };
var stream = new MemoryStream();
var output = new CodedOutputStream(stream);
field.WriteTo(output, FieldCodec.ForString(tag));
output.Flush();
stream.Position = 0;
var input = new CodedInputStream(stream);
input.AssertNextTag(tag);
Assert.AreEqual("Foo", input.ReadString());
input.AssertNextTag(tag);
Assert.AreEqual("", input.ReadString());
input.AssertNextTag(tag);
Assert.AreEqual("Bar", input.ReadString());
Assert.IsTrue(input.IsAtEnd);
}
[Test]
public void WriteTo_Message()
{
var message1 = new ForeignMessage { C = 20 };
var message2 = new ForeignMessage { C = 25 };
uint tag = WireFormat.MakeTag(10, WireFormat.WireType.LengthDelimited);
var field = new RepeatedField<ForeignMessage> { message1, message2 };
var stream = new MemoryStream();
var output = new CodedOutputStream(stream);
field.WriteTo(output, FieldCodec.ForMessage(tag, ForeignMessage.Parser));
output.Flush();
stream.Position = 0;
var input = new CodedInputStream(stream);
input.AssertNextTag(tag);
Assert.AreEqual(message1, input.ReadMessage(ForeignMessage.Parser));
input.AssertNextTag(tag);
Assert.AreEqual(message2, input.ReadMessage(ForeignMessage.Parser));
Assert.IsTrue(input.IsAtEnd);
}
[Test]
public void CalculateSize_VariableSizeNonPacked()
{
var list = new RepeatedField<int> { 1, 500, 1 };
var tag = WireFormat.MakeTag(1, WireFormat.WireType.Varint);
// 2 bytes for the first entry, 3 bytes for the second, 2 bytes for the third
Assert.AreEqual(7, list.CalculateSize(FieldCodec.ForInt32(tag)));
}
[Test]
public void CalculateSize_FixedSizeNonPacked()
{
var list = new RepeatedField<int> { 1, 500, 1 };
var tag = WireFormat.MakeTag(1, WireFormat.WireType.Fixed32);
// 5 bytes for the each entry
Assert.AreEqual(15, list.CalculateSize(FieldCodec.ForSFixed32(tag)));
}
[Test]
public void CalculateSize_VariableSizePacked()
{
var list = new RepeatedField<int> { 1, 500, 1};
var tag = WireFormat.MakeTag(1, WireFormat.WireType.LengthDelimited);
// 1 byte for the tag, 1 byte for the length,
// 1 byte for the first entry, 2 bytes for the second, 1 byte for the third
Assert.AreEqual(6, list.CalculateSize(FieldCodec.ForInt32(tag)));
}
[Test]
public void CalculateSize_FixedSizePacked()
{
var list = new RepeatedField<int> { 1, 500, 1 };
var tag = WireFormat.MakeTag(1, WireFormat.WireType.LengthDelimited);
// 1 byte for the tag, 1 byte for the length, 4 bytes per entry
Assert.AreEqual(14, list.CalculateSize(FieldCodec.ForSFixed32(tag)));
}
[Test]
public void TestNegativeEnumArray()
{
int arraySize = 1 + 1 + (11 * 5);
int msgSize = arraySize;
byte[] bytes = new byte[msgSize];
CodedOutputStream output = new CodedOutputStream(bytes);
uint tag = WireFormat.MakeTag(8, WireFormat.WireType.Varint);
for (int i = 0; i >= -5; i--)
{
output.WriteTag(tag);
output.WriteEnum(i);
}
Assert.AreEqual(0, output.SpaceLeft);
CodedInputStream input = new CodedInputStream(bytes);
tag = input.ReadTag();
RepeatedField<SampleEnum> values = new RepeatedField<SampleEnum>();
values.AddEntriesFrom(input, FieldCodec.ForEnum(tag, x => (int)x, x => (SampleEnum)x));
Assert.AreEqual(6, values.Count);
Assert.AreEqual(SampleEnum.None, values[0]);
Assert.AreEqual(((SampleEnum)(-1)), values[1]);
Assert.AreEqual(SampleEnum.NegativeValue, values[2]);
Assert.AreEqual(((SampleEnum)(-3)), values[3]);
Assert.AreEqual(((SampleEnum)(-4)), values[4]);
Assert.AreEqual(((SampleEnum)(-5)), values[5]);
}
[Test]
public void TestNegativeEnumPackedArray()
{
int arraySize = 1 + (10 * 5);
int msgSize = 1 + 1 + arraySize;
byte[] bytes = new byte[msgSize];
CodedOutputStream output = new CodedOutputStream(bytes);
// Length-delimited to show we want the packed representation
uint tag = WireFormat.MakeTag(8, WireFormat.WireType.LengthDelimited);
output.WriteTag(tag);
int size = 0;
for (int i = 0; i >= -5; i--)
{
size += CodedOutputStream.ComputeEnumSize(i);
}
output.WriteRawVarint32((uint)size);
for (int i = 0; i >= -5; i--)
{
output.WriteEnum(i);
}
Assert.AreEqual(0, output.SpaceLeft);
CodedInputStream input = new CodedInputStream(bytes);
tag = input.ReadTag();
RepeatedField<SampleEnum> values = new RepeatedField<SampleEnum>();
values.AddEntriesFrom(input, FieldCodec.ForEnum(tag, x => (int)x, x => (SampleEnum)x));
Assert.AreEqual(6, values.Count);
Assert.AreEqual(SampleEnum.None, values[0]);
Assert.AreEqual(((SampleEnum)(-1)), values[1]);
Assert.AreEqual(SampleEnum.NegativeValue, values[2]);
Assert.AreEqual(((SampleEnum)(-3)), values[3]);
Assert.AreEqual(((SampleEnum)(-4)), values[4]);
Assert.AreEqual(((SampleEnum)(-5)), values[5]);
}
// Fairly perfunctory tests for the non-generic IList implementation
[Test]
public void IList_Indexer()
{
var field = new RepeatedField<string> { "first", "second" };
IList list = field;
Assert.AreEqual("first", list[0]);
list[1] = "changed";
Assert.AreEqual("changed", field[1]);
}
[Test]
public void IList_Contains()
{
IList list = new RepeatedField<string> { "first", "second" };
Assert.IsTrue(list.Contains("second"));
Assert.IsFalse(list.Contains("third"));
Assert.IsFalse(list.Contains(new object()));
}
[Test]
public void IList_Add()
{
IList list = new RepeatedField<string> { "first", "second" };
list.Add("third");
CollectionAssert.AreEqual(new[] { "first", "second", "third" }, list);
}
[Test]
public void IList_Remove()
{
IList list = new RepeatedField<string> { "first", "second" };
list.Remove("third"); // No-op, no exception
list.Remove(new object()); // No-op, no exception
list.Remove("first");
CollectionAssert.AreEqual(new[] { "second" }, list);
}
[Test]
public void IList_IsFixedSize()
{
var field = new RepeatedField<string> { "first", "second" };
IList list = field;
Assert.IsFalse(list.IsFixedSize);
}
[Test]
public void IList_IndexOf()
{
IList list = new RepeatedField<string> { "first", "second" };
Assert.AreEqual(1, list.IndexOf("second"));
Assert.AreEqual(-1, list.IndexOf("third"));
Assert.AreEqual(-1, list.IndexOf(new object()));
}
[Test]
public void IList_SyncRoot()
{
IList list = new RepeatedField<string> { "first", "second" };
Assert.AreSame(list, list.SyncRoot);
}
[Test]
public void IList_CopyTo()
{
IList list = new RepeatedField<string> { "first", "second" };
string[] stringArray = new string[4];
list.CopyTo(stringArray, 1);
CollectionAssert.AreEqual(new[] { null, "first", "second", null }, stringArray);
object[] objectArray = new object[4];
list.CopyTo(objectArray, 1);
CollectionAssert.AreEqual(new[] { null, "first", "second", null }, objectArray);
Assert.Throws<ArrayTypeMismatchException>(() => list.CopyTo(new StringBuilder[4], 1));
Assert.Throws<ArrayTypeMismatchException>(() => list.CopyTo(new int[4], 1));
}
[Test]
public void IList_IsSynchronized()
{
IList list = new RepeatedField<string> { "first", "second" };
Assert.IsFalse(list.IsSynchronized);
}
[Test]
public void IList_Insert()
{
IList list = new RepeatedField<string> { "first", "second" };
list.Insert(1, "middle");
CollectionAssert.AreEqual(new[] { "first", "middle", "second" }, list);
}
[Test]
public void ToString_Integers()
{
var list = new RepeatedField<int> { 5, 10, 20 };
var text = list.ToString();
Assert.AreEqual("[ 5, 10, 20 ]", text);
}
[Test]
public void ToString_Strings()
{
var list = new RepeatedField<string> { "x", "y", "z" };
var text = list.ToString();
Assert.AreEqual("[ \"x\", \"y\", \"z\" ]", text);
}
[Test]
public void ToString_Messages()
{
var list = new RepeatedField<TestAllTypes> { new TestAllTypes { SingleDouble = 1.5 }, new TestAllTypes { SingleInt32 = 10 } };
var text = list.ToString();
Assert.AreEqual("[ { \"singleDouble\": 1.5 }, { \"singleInt32\": 10 } ]", text);
}
[Test]
public void ToString_Empty()
{
var list = new RepeatedField<TestAllTypes> { };
var text = list.ToString();
Assert.AreEqual("[ ]", text);
}
[Test]
public void ToString_InvalidElementType()
{
var list = new RepeatedField<decimal> { 15m };
Assert.Throws<ArgumentException>(() => list.ToString());
}
[Test]
public void ToString_Timestamp()
{
var list = new RepeatedField<Timestamp> { Timestamp.FromDateTime(new DateTime(2015, 10, 1, 12, 34, 56, DateTimeKind.Utc)) };
var text = list.ToString();
Assert.AreEqual("[ \"2015-10-01T12:34:56Z\" ]", text);
}
[Test]
public void ToString_Struct()
{
var message = new Struct { Fields = { { "foo", new Value { NumberValue = 20 } } } };
var list = new RepeatedField<Struct> { message };
var text = list.ToString();
Assert.AreEqual(text, "[ { \"foo\": 20 } ]", message.ToString());
}
}
}