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126 lines
4.9 KiB
C#
126 lines
4.9 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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using System;
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using System.IO;
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using System.Text;
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using NUnit.Framework;
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using osu.Game.IO;
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namespace osu.Game.Tests.Beatmaps.IO
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{
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[TestFixture]
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public class LineBufferedReaderTest
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{
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[Test]
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public void TestReadLineByLine()
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{
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const string contents = "line 1\rline 2\nline 3";
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using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(contents)))
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using (var bufferedReader = new LineBufferedReader(stream))
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{
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Assert.AreEqual("line 1", bufferedReader.ReadLine());
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Assert.AreEqual("line 2", bufferedReader.ReadLine());
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Assert.AreEqual("line 3", bufferedReader.ReadLine());
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Assert.IsNull(bufferedReader.ReadLine());
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}
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}
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[Test]
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public void TestPeekLineOnce()
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{
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const string contents = "line 1\r\npeek this\nline 3";
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using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(contents)))
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using (var bufferedReader = new LineBufferedReader(stream))
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{
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Assert.AreEqual("line 1", bufferedReader.ReadLine());
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Assert.AreEqual("peek this", bufferedReader.PeekLine());
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Assert.AreEqual("peek this", bufferedReader.ReadLine());
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Assert.AreEqual("line 3", bufferedReader.ReadLine());
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Assert.IsNull(bufferedReader.ReadLine());
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}
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}
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[Test]
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public void TestPeekLineMultipleTimes()
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{
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const string contents = "peek this once\nline 2\rpeek this a lot";
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using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(contents)))
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using (var bufferedReader = new LineBufferedReader(stream))
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{
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Assert.AreEqual("peek this once", bufferedReader.PeekLine());
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Assert.AreEqual("peek this once", bufferedReader.ReadLine());
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Assert.AreEqual("line 2", bufferedReader.ReadLine());
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Assert.AreEqual("peek this a lot", bufferedReader.PeekLine());
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Assert.AreEqual("peek this a lot", bufferedReader.PeekLine());
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Assert.AreEqual("peek this a lot", bufferedReader.PeekLine());
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Assert.AreEqual("peek this a lot", bufferedReader.ReadLine());
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Assert.IsNull(bufferedReader.ReadLine());
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}
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}
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[Test]
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public void TestPeekLineAtEndOfStream()
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{
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const string contents = "first line\r\nsecond line";
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using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(contents)))
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using (var bufferedReader = new LineBufferedReader(stream))
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{
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Assert.AreEqual("first line", bufferedReader.ReadLine());
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Assert.AreEqual("second line", bufferedReader.ReadLine());
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Assert.IsNull(bufferedReader.PeekLine());
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Assert.IsNull(bufferedReader.ReadLine());
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Assert.IsNull(bufferedReader.PeekLine());
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}
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}
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[Test]
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public void TestPeekReadLineOnEmptyStream()
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{
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using (var stream = new MemoryStream())
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using (var bufferedReader = new LineBufferedReader(stream))
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{
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Assert.IsNull(bufferedReader.PeekLine());
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Assert.IsNull(bufferedReader.ReadLine());
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Assert.IsNull(bufferedReader.ReadLine());
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Assert.IsNull(bufferedReader.PeekLine());
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}
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}
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[Test]
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public void TestReadToEndNoPeeks()
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{
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const string contents = "first line\r\nsecond line";
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using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(contents)))
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using (var bufferedReader = new LineBufferedReader(stream))
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{
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Assert.AreEqual(contents, bufferedReader.ReadToEnd());
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}
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}
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[Test]
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public void TestReadToEndAfterReadsAndPeeks()
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{
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const string contents = "this line is gone\rthis one shouldn't be\r\nthese ones\ndefinitely not";
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using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(contents)))
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using (var bufferedReader = new LineBufferedReader(stream))
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{
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Assert.AreEqual("this line is gone", bufferedReader.ReadLine());
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Assert.AreEqual("this one shouldn't be", bufferedReader.PeekLine());
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string[] endingLines = bufferedReader.ReadToEnd().Split(new[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries);
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Assert.AreEqual(3, endingLines.Length);
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Assert.AreEqual("this one shouldn't be", endingLines[0]);
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Assert.AreEqual("these ones", endingLines[1]);
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Assert.AreEqual("definitely not", endingLines[2]);
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}
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}
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}
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}
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