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Diffstat (limited to 'third_party/protobuf/3.6.0/csharp/src/Google.Protobuf.Test/ByteStringTest.cs')
-rw-r--r-- | third_party/protobuf/3.6.0/csharp/src/Google.Protobuf.Test/ByteStringTest.cs | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/third_party/protobuf/3.6.0/csharp/src/Google.Protobuf.Test/ByteStringTest.cs b/third_party/protobuf/3.6.0/csharp/src/Google.Protobuf.Test/ByteStringTest.cs new file mode 100644 index 0000000000..da467ce519 --- /dev/null +++ b/third_party/protobuf/3.6.0/csharp/src/Google.Protobuf.Test/ByteStringTest.cs @@ -0,0 +1,237 @@ +#region Copyright notice and license +// Protocol Buffers - Google's data interchange format +// Copyright 2008 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.Text; +using NUnit.Framework; +using System.IO; +#if !NET35 +using System.Threading.Tasks; +#endif + +namespace Google.Protobuf +{ + public class ByteStringTest + { + [Test] + public void Equality() + { + ByteString b1 = ByteString.CopyFrom(1, 2, 3); + ByteString b2 = ByteString.CopyFrom(1, 2, 3); + ByteString b3 = ByteString.CopyFrom(1, 2, 4); + ByteString b4 = ByteString.CopyFrom(1, 2, 3, 4); + EqualityTester.AssertEquality(b1, b1); + EqualityTester.AssertEquality(b1, b2); + EqualityTester.AssertInequality(b1, b3); + EqualityTester.AssertInequality(b1, b4); + EqualityTester.AssertInequality(b1, null); +#pragma warning disable 1718 // Deliberately calling ==(b1, b1) and !=(b1, b1) + Assert.IsTrue(b1 == b1); + Assert.IsTrue(b1 == b2); + Assert.IsFalse(b1 == b3); + Assert.IsFalse(b1 == b4); + Assert.IsFalse(b1 == null); + Assert.IsTrue((ByteString) null == null); + Assert.IsFalse(b1 != b1); + Assert.IsFalse(b1 != b2); +#pragma warning disable 1718 + Assert.IsTrue(b1 != b3); + Assert.IsTrue(b1 != b4); + Assert.IsTrue(b1 != null); + Assert.IsFalse((ByteString) null != null); + } + + [Test] + public void EmptyByteStringHasZeroSize() + { + Assert.AreEqual(0, ByteString.Empty.Length); + } + + [Test] + public void CopyFromStringWithExplicitEncoding() + { + ByteString bs = ByteString.CopyFrom("AB", Encoding.Unicode); + Assert.AreEqual(4, bs.Length); + Assert.AreEqual(65, bs[0]); + Assert.AreEqual(0, bs[1]); + Assert.AreEqual(66, bs[2]); + Assert.AreEqual(0, bs[3]); + } + + [Test] + public void IsEmptyWhenEmpty() + { + Assert.IsTrue(ByteString.CopyFromUtf8("").IsEmpty); + } + + [Test] + public void IsEmptyWhenNotEmpty() + { + Assert.IsFalse(ByteString.CopyFromUtf8("X").IsEmpty); + } + + [Test] + public void CopyFromByteArrayCopiesContents() + { + byte[] data = new byte[1]; + data[0] = 10; + ByteString bs = ByteString.CopyFrom(data); + Assert.AreEqual(10, bs[0]); + data[0] = 5; + Assert.AreEqual(10, bs[0]); + } + + [Test] + public void ToByteArrayCopiesContents() + { + ByteString bs = ByteString.CopyFromUtf8("Hello"); + byte[] data = bs.ToByteArray(); + Assert.AreEqual((byte)'H', data[0]); + Assert.AreEqual((byte)'H', bs[0]); + data[0] = 0; + Assert.AreEqual(0, data[0]); + Assert.AreEqual((byte)'H', bs[0]); + } + + [Test] + public void CopyFromUtf8UsesUtf8() + { + ByteString bs = ByteString.CopyFromUtf8("\u20ac"); + Assert.AreEqual(3, bs.Length); + Assert.AreEqual(0xe2, bs[0]); + Assert.AreEqual(0x82, bs[1]); + Assert.AreEqual(0xac, bs[2]); + } + + [Test] + public void CopyFromPortion() + { + byte[] data = new byte[] {0, 1, 2, 3, 4, 5, 6}; + ByteString bs = ByteString.CopyFrom(data, 2, 3); + Assert.AreEqual(3, bs.Length); + Assert.AreEqual(2, bs[0]); + Assert.AreEqual(3, bs[1]); + } + + [Test] + public void ToStringUtf8() + { + ByteString bs = ByteString.CopyFromUtf8("\u20ac"); + Assert.AreEqual("\u20ac", bs.ToStringUtf8()); + } + + [Test] + public void ToStringWithExplicitEncoding() + { + ByteString bs = ByteString.CopyFrom("\u20ac", Encoding.Unicode); + Assert.AreEqual("\u20ac", bs.ToString(Encoding.Unicode)); + } + + [Test] + public void FromBase64_WithText() + { + byte[] data = new byte[] {0, 1, 2, 3, 4, 5, 6}; + string base64 = Convert.ToBase64String(data); + ByteString bs = ByteString.FromBase64(base64); + Assert.AreEqual(data, bs.ToByteArray()); + } + + [Test] + public void FromBase64_Empty() + { + // Optimization which also fixes issue 61. + Assert.AreSame(ByteString.Empty, ByteString.FromBase64("")); + } + + [Test] + public void FromStream_Seekable() + { + var stream = new MemoryStream(new byte[] { 1, 2, 3, 4, 5 }); + // Consume the first byte, just to test that it's "from current position" + stream.ReadByte(); + var actual = ByteString.FromStream(stream); + ByteString expected = ByteString.CopyFrom(2, 3, 4, 5); + Assert.AreEqual(expected, actual, $"{expected.ToBase64()} != {actual.ToBase64()}"); + } + + [Test] + public void FromStream_NotSeekable() + { + var stream = new MemoryStream(new byte[] { 1, 2, 3, 4, 5 }); + // Consume the first byte, just to test that it's "from current position" + stream.ReadByte(); + // Wrap the original stream in LimitedInputStream, which has CanSeek=false + var limitedStream = new LimitedInputStream(stream, 3); + var actual = ByteString.FromStream(limitedStream); + ByteString expected = ByteString.CopyFrom(2, 3, 4); + Assert.AreEqual(expected, actual, $"{expected.ToBase64()} != {actual.ToBase64()}"); + } + +#if !NET35 + [Test] + public async Task FromStreamAsync_Seekable() + { + var stream = new MemoryStream(new byte[] { 1, 2, 3, 4, 5 }); + // Consume the first byte, just to test that it's "from current position" + stream.ReadByte(); + var actual = await ByteString.FromStreamAsync(stream); + ByteString expected = ByteString.CopyFrom(2, 3, 4, 5); + Assert.AreEqual(expected, actual, $"{expected.ToBase64()} != {actual.ToBase64()}"); + } + + [Test] + public async Task FromStreamAsync_NotSeekable() + { + var stream = new MemoryStream(new byte[] { 1, 2, 3, 4, 5 }); + // Consume the first byte, just to test that it's "from current position" + stream.ReadByte(); + // Wrap the original stream in LimitedInputStream, which has CanSeek=false + var limitedStream = new LimitedInputStream(stream, 3); + var actual = await ByteString.FromStreamAsync(limitedStream); + ByteString expected = ByteString.CopyFrom(2, 3, 4); + Assert.AreEqual(expected, actual, $"{expected.ToBase64()} != {actual.ToBase64()}"); + } +#endif + + [Test] + public void GetHashCode_Regression() + { + // We used to have an awful hash algorithm where only the last four + // bytes were relevant. This is a regression test for + // https://github.com/google/protobuf/issues/2511 + + ByteString b1 = ByteString.CopyFrom(100, 1, 2, 3, 4); + ByteString b2 = ByteString.CopyFrom(200, 1, 2, 3, 4); + Assert.AreNotEqual(b1.GetHashCode(), b2.GetHashCode()); + } + } +}
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