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#region Copyright notice and license
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// Protocol Buffers - Google's data interchange format
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// Copyright 2008 Google Inc. All rights reserved.
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// https://developers.google.com/protocol-buffers/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#endregion
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using System;
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using System.Text;
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using NUnit.Framework;
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namespace Google.Protobuf
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{
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public class ByteStringTest
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{
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[Test]
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public void Equality()
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{
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ByteString b1 = ByteString.CopyFrom(1, 2, 3);
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ByteString b2 = ByteString.CopyFrom(1, 2, 3);
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ByteString b3 = ByteString.CopyFrom(1, 2, 4);
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ByteString b4 = ByteString.CopyFrom(1, 2, 3, 4);
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EqualityTester.AssertEquality(b1, b1);
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EqualityTester.AssertEquality(b1, b2);
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EqualityTester.AssertInequality(b1, b3);
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EqualityTester.AssertInequality(b1, b4);
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EqualityTester.AssertInequality(b1, null);
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#pragma warning disable 1718 // Deliberately calling ==(b1, b1) and !=(b1, b1)
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Assert.IsTrue(b1 == b1);
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Assert.IsTrue(b1 == b2);
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Assert.IsFalse(b1 == b3);
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Assert.IsFalse(b1 == b4);
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Assert.IsFalse(b1 == null);
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Assert.IsTrue((ByteString) null == null);
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Assert.IsFalse(b1 != b1);
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Assert.IsFalse(b1 != b2);
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#pragma warning disable 1718
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Assert.IsTrue(b1 != b3);
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Assert.IsTrue(b1 != b4);
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Assert.IsTrue(b1 != null);
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Assert.IsFalse((ByteString) null != null);
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}
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[Test]
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public void EmptyByteStringHasZeroSize()
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{
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Assert.AreEqual(0, ByteString.Empty.Length);
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}
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[Test]
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public void CopyFromStringWithExplicitEncoding()
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{
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ByteString bs = ByteString.CopyFrom("AB", Encoding.Unicode);
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Assert.AreEqual(4, bs.Length);
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Assert.AreEqual(65, bs[0]);
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Assert.AreEqual(0, bs[1]);
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Assert.AreEqual(66, bs[2]);
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Assert.AreEqual(0, bs[3]);
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}
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[Test]
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public void IsEmptyWhenEmpty()
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{
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Assert.IsTrue(ByteString.CopyFromUtf8("").IsEmpty);
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}
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[Test]
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public void IsEmptyWhenNotEmpty()
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{
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Assert.IsFalse(ByteString.CopyFromUtf8("X").IsEmpty);
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}
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[Test]
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public void CopyFromByteArrayCopiesContents()
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{
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byte[] data = new byte[1];
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data[0] = 10;
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ByteString bs = ByteString.CopyFrom(data);
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Assert.AreEqual(10, bs[0]);
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data[0] = 5;
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Assert.AreEqual(10, bs[0]);
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}
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[Test]
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public void ToByteArrayCopiesContents()
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{
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ByteString bs = ByteString.CopyFromUtf8("Hello");
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byte[] data = bs.ToByteArray();
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Assert.AreEqual((byte)'H', data[0]);
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Assert.AreEqual((byte)'H', bs[0]);
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data[0] = 0;
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Assert.AreEqual(0, data[0]);
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Assert.AreEqual((byte)'H', bs[0]);
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}
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[Test]
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public void CopyFromUtf8UsesUtf8()
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{
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ByteString bs = ByteString.CopyFromUtf8("\u20ac");
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Assert.AreEqual(3, bs.Length);
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Assert.AreEqual(0xe2, bs[0]);
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Assert.AreEqual(0x82, bs[1]);
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Assert.AreEqual(0xac, bs[2]);
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}
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[Test]
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public void CopyFromPortion()
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{
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byte[] data = new byte[] {0, 1, 2, 3, 4, 5, 6};
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ByteString bs = ByteString.CopyFrom(data, 2, 3);
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Assert.AreEqual(3, bs.Length);
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Assert.AreEqual(2, bs[0]);
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Assert.AreEqual(3, bs[1]);
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}
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[Test]
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public void ToStringUtf8()
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{
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ByteString bs = ByteString.CopyFromUtf8("\u20ac");
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Assert.AreEqual("\u20ac", bs.ToStringUtf8());
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}
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[Test]
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public void ToStringWithExplicitEncoding()
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{
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ByteString bs = ByteString.CopyFrom("\u20ac", Encoding.Unicode);
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Assert.AreEqual("\u20ac", bs.ToString(Encoding.Unicode));
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}
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[Test]
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public void FromBase64_WithText()
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{
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byte[] data = new byte[] {0, 1, 2, 3, 4, 5, 6};
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string base64 = Convert.ToBase64String(data);
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ByteString bs = ByteString.FromBase64(base64);
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Assert.AreEqual(data, bs.ToByteArray());
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}
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[Test]
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public void FromBase64_Empty()
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{
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// Optimization which also fixes issue 61.
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Assert.AreSame(ByteString.Empty, ByteString.FromBase64(""));
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}
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}
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}
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