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DebugTestsNoListeners.cs
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DebugTestsNoListeners.cs
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
#define DEBUG
using System.Reflection;
using Xunit;
namespace System.Diagnostics.Tests
{
// These tests test the static Debug class. They cannot be run in parallel
// DebugTestsNoListeners: tests Debug behavior before Debug is set with Trace Listeners.
[Collection("System.Diagnostics.Debug")]
public partial class DebugTestsNoListeners : DebugTests
{
protected override bool DebugUsesTraceListeners { get { return false; } }
protected void GoToNextLine()
{
// Start from next line before running next test: refer to nameof(Debug_WriteLine_WontIndentAfterWrite)
VerifyLogged(() => Debug.WriteLine(""), Environment.NewLine);
}
[Fact]
public void Debug_Write_Indents()
{
// This test when run alone verifies Debug.Write indentation, even on first call, is correct.
Debug.Indent();
VerifyLogged(() => Debug.Write("pizza"), new string(' ', Debug.IndentLevel * Debug.IndentSize) + "pizza");
Debug.Unindent();
GoToNextLine();
}
[Fact]
public void Debug_WriteLine_Indents()
{
// This test when run alone verifies Debug.WriteLine indentation, even on first call, is correct.
Debug.Indent();
VerifyLogged(() => Debug.WriteLine("pizza"), new string(' ', Debug.IndentLevel * Debug.IndentSize) + "pizza" + Environment.NewLine);
Debug.Unindent();
}
[Fact]
public void Debug_WriteLine_WontIndentAfterWrite()
{
Debug.Indent();
int expectedIndentation = Debug.IndentLevel * Debug.IndentSize;
VerifyLogged(() => Debug.Write("pizza"), new string(' ', expectedIndentation) + "pizza");
// WriteLine wont indent after Write:
VerifyLogged(() => Debug.WriteLine("pizza"), "pizza" + Environment.NewLine);
VerifyLogged(() => Debug.WriteLine("pizza"), new string(' ', expectedIndentation) + "pizza" + Environment.NewLine);
VerifyLogged(() => Debug.Write("pizza"), new string(' ', expectedIndentation) + "pizza");
// WriteLine wont indent after Write:
VerifyLogged(() => Debug.WriteLine("pizza"), "pizza" + Environment.NewLine);
VerifyLogged(() => Debug.WriteLine("pizza"), new string(' ', expectedIndentation) + "pizza" + Environment.NewLine);
Debug.Unindent();
}
[Fact]
public void Debug_WriteNull_SkipsIndentation()
{
Debug.Indent();
VerifyLogged(() => Debug.Write(null), "");
Debug.Unindent();
}
[Fact]
public void Debug_WriteLineNull_IndentsEmptyStringProperly()
{
Debug.Indent();
int expected = Debug.IndentSize * Debug.IndentLevel;
VerifyLogged(() => Debug.WriteLine(null), new string(' ', expected) + Environment.NewLine);
// reset
Debug.Unindent();
}
[Fact]
public void Asserts()
{
VerifyLogged(() => Debug.Assert(true), "");
VerifyLogged(() => Debug.Assert(true, "assert passed"), "");
VerifyLogged(() => Debug.Assert(true, "assert passed", "nothing is wrong"), "");
VerifyLogged(() => Debug.Assert(true, "assert passed", "nothing is wrong {0} {1}", 'a', 'b'), "");
VerifyAssert(() => Debug.Assert(false), "");
VerifyAssert(() => Debug.Assert(false, "assert passed"), "assert passed");
VerifyAssert(() => Debug.Assert(false, "assert passed", "nothing is wrong"), "assert passed", "nothing is wrong");
VerifyAssert(() => Debug.Assert(false, "assert passed", "nothing is wrong {0} {1}", 'a', 'b'), "assert passed", "nothing is wrong a b");
}
[Fact]
public void Fail()
{
VerifyAssert(() => Debug.Fail("something bad happened"), "something bad happened");
VerifyAssert(() => Debug.Fail("something bad happened", "really really bad"), "something bad happened", "really really bad");
}
[Fact]
public void Write()
{
VerifyLogged(() => Debug.Write(5), "5");
VerifyLogged(() => Debug.Write((string)null), "");
VerifyLogged(() => Debug.Write((object)null), "");
VerifyLogged(() => Debug.Write(5, "category"), "category: 5");
VerifyLogged(() => Debug.Write((object)null, "category"), "category: ");
VerifyLogged(() => Debug.Write("logged"), "logged");
VerifyLogged(() => Debug.Write("logged", "category"), "category: logged");
VerifyLogged(() => Debug.Write("logged", (string)null), "logged");
string longString = new string('d', 8192);
VerifyLogged(() => Debug.Write(longString), longString);
GoToNextLine();
}
[Fact]
public void Print()
{
VerifyLogged(() => Debug.Print("logged"), "logged" + Environment.NewLine);
VerifyLogged(() => Debug.Print("logged {0}", 5), "logged 5" + Environment.NewLine);
GoToNextLine();
}
[Fact]
public void WriteLine()
{
VerifyLogged(() => Debug.WriteLine(5), "5" + Environment.NewLine);
VerifyLogged(() => Debug.WriteLine((string)null), Environment.NewLine);
VerifyLogged(() => Debug.WriteLine((object)null), Environment.NewLine);
VerifyLogged(() => Debug.WriteLine(5, "category"), "category: 5" + Environment.NewLine);
VerifyLogged(() => Debug.WriteLine((object)null, "category"), "category: " + Environment.NewLine);
VerifyLogged(() => Debug.WriteLine("logged"), "logged" + Environment.NewLine);
VerifyLogged(() => Debug.WriteLine("logged", "category"), "category: logged" + Environment.NewLine);
VerifyLogged(() => Debug.WriteLine("logged", (string)null), "logged" + Environment.NewLine);
VerifyLogged(() => Debug.WriteLine("{0} {1}", 'a', 'b'), "a b" + Environment.NewLine);
}
[Fact]
public void WriteIf()
{
VerifyLogged(() => Debug.WriteIf(true, 5), "5");
VerifyLogged(() => Debug.WriteIf(false, 5), "");
VerifyLogged(() => Debug.WriteIf(true, 5, "category"), "category: 5");
VerifyLogged(() => Debug.WriteIf(false, 5, "category"), "");
VerifyLogged(() => Debug.WriteIf(true, "logged"), "logged");
VerifyLogged(() => Debug.WriteIf(false, "logged"), "");
VerifyLogged(() => Debug.WriteIf(true, "logged", "category"), "category: logged");
VerifyLogged(() => Debug.WriteIf(false, "logged", "category"), "");
GoToNextLine();
}
[Fact]
public void WriteLineIf()
{
VerifyLogged(() => Debug.WriteLineIf(true, 5), "5" + Environment.NewLine);
VerifyLogged(() => Debug.WriteLineIf(false, 5), "");
VerifyLogged(() => Debug.WriteLineIf(true, 5, "category"), "category: 5" + Environment.NewLine);
VerifyLogged(() => Debug.WriteLineIf(false, 5, "category"), "");
VerifyLogged(() => Debug.WriteLineIf(true, "logged"), "logged" + Environment.NewLine);
VerifyLogged(() => Debug.WriteLineIf(false, "logged"), "");
VerifyLogged(() => Debug.WriteLineIf(true, "logged", "category"), "category: logged" + Environment.NewLine);
VerifyLogged(() => Debug.WriteLineIf(false, "logged", "category"), "");
}
[Theory]
[InlineData(-1, 0)]
[InlineData(0, 0)]
[InlineData(1, 1)]
[InlineData(2, 2)]
[InlineData(3, 3)]
[InlineData(4, 4)]
public void IndentSize_Set_GetReturnsExpected(int indentSize, int expectedIndentSize)
{
Debug.IndentLevel = 0;
Debug.IndentSize = indentSize;
Assert.Equal(expectedIndentSize, Debug.IndentSize);
VerifyLogged(() => Debug.WriteLine("pizza"), "pizza" + Environment.NewLine);
// Indent once.
Debug.Indent();
string expectedIndentOnce = new string(' ', expectedIndentSize);
VerifyLogged(() => Debug.WriteLine("pizza"), expectedIndentOnce + "pizza" + Environment.NewLine);
// Indent again.
Debug.Indent();
string expectedIndentTwice = new string(' ', expectedIndentSize * 2);
VerifyLogged(() => Debug.WriteLine("pizza"), expectedIndentTwice + "pizza" + Environment.NewLine);
// Unindent.
Debug.Unindent();
Debug.Unindent();
}
[Theory]
[InlineData(-1, 0)]
[InlineData(0, 0)]
[InlineData(1, 1)]
public void IndentLevel_Set_GetReturnsExpected(int indentLevel, int expectedIndentLevel)
{
Debug.IndentLevel = indentLevel;
Assert.Equal(expectedIndentLevel, Debug.IndentLevel);
string expectedIndentOnce = new string(' ', expectedIndentLevel * Debug.IndentSize);
VerifyLogged(() => Debug.WriteLine("pizza"), expectedIndentOnce + "pizza" + Environment.NewLine);
// Indent once.
Debug.Indent();
Assert.Equal(expectedIndentLevel + 1, Debug.IndentLevel);
string expectedIndentTwice = new string(' ', (expectedIndentLevel + 1) * Debug.IndentSize);
VerifyLogged(() => Debug.WriteLine("pizza"), expectedIndentTwice + "pizza" + Environment.NewLine);
// Unindent.
Debug.Unindent();
Assert.Equal(expectedIndentLevel, Debug.IndentLevel);
Debug.Unindent();
}
}
}