public void Logs_can_be_written_to_ITestOutputHelper()
{
var output = new TestTestOutputHelper();
TestLog.Current.LogTo(output);
var message = Guid.NewGuid().ToString();
Log.Info(message);
output.Text.Should().Contain(s => s.Contains(message));
}
public void LoggerProviderDoesNotWriteLogMessagesBelowMinimumLevel()
{
var testTestOutputHelper = new TestTestOutputHelper();
var loggerFactory = CreateTestLogger(builder => builder
.AddXunit(testTestOutputHelper, LogLevel.Warning));
var logger = loggerFactory.CreateLogger("TestCategory");
logger.LogInformation("This is some great information");
logger.LogError("This is a bad error");
Assert.Equal("| [TIMESTAMP] TestCategory Error: This is a bad error" + Environment.NewLine, MakeConsistent(testTestOutputHelper.Output));
}
public void LoggerProviderDoesNotThrowIfOutputHelperThrows()
{
var testTestOutputHelper = new TestTestOutputHelper();
var loggerFactory = CreateTestLogger(builder => builder
.AddXunit(testTestOutputHelper));
testTestOutputHelper.Throw = true;
var logger = loggerFactory.CreateLogger("TestCategory");
logger.LogInformation("This is a" + Environment.NewLine + "multi-line" + Environment.NewLine + "message");
Assert.Equal(0, testTestOutputHelper.Output.Length);
}
public void LoggerProviderPrependsPrefixToEachLine()
{
var testTestOutputHelper = new TestTestOutputHelper();
var loggerFactory = CreateTestLogger(builder => builder
.AddXunit(testTestOutputHelper));
var logger = loggerFactory.CreateLogger("TestCategory");
logger.LogInformation("This is a" + Environment.NewLine + "multi-line" + Environment.NewLine + "message");
// The lines after the first one are indented more because the indentation was calculated based on the timestamp's actual length.
var expectedOutput =
"| [TIMESTAMP] TestCategory Information: This is a" + Environment.NewLine +
"| multi-line" + Environment.NewLine +
"| message" + Environment.NewLine;
Assert.Equal(expectedOutput, MakeConsistent(testTestOutputHelper.Output));
}
public void LoggerProviderWritesToTestOutputHelper()
{
var testTestOutputHelper = new TestTestOutputHelper();
var loggerFactory = CreateTestLogger(builder => builder
.SetMinimumLevel(LogLevel.Trace)
.AddXunit(testTestOutputHelper));
var logger = loggerFactory.CreateLogger("TestCategory");
logger.LogInformation("This is some great information");
logger.LogTrace("This is some unimportant information");
var expectedOutput =
"| [TIMESTAMP] TestCategory Information: This is some great information" + Environment.NewLine +
"| [TIMESTAMP] TestCategory Trace: This is some unimportant information" + Environment.NewLine;
Assert.Equal(expectedOutput, MakeConsistent(testTestOutputHelper.Output));
}
public void TestLogWritesToITestOutputHelper()
{
var output = new TestTestOutputHelper();
using var assemblyLog = AssemblyTestLog.Create(ThisAssembly, baseDirectory: null);
using (assemblyLog.StartTestLog(output, "NonExistant.Test.Class", out var loggerFactory))
{
var logger = loggerFactory.CreateLogger("TestLogger");
logger.LogInformation("Information!");
// Trace is disabled by default
logger.LogTrace("Trace!");
}
var testLogContent = MakeConsistent(output.Output);
Assert.Equal(
@"[OFFSET] TestLifetime Information: Starting test TestLogWritesToITestOutputHelper at TIMESTAMP
[OFFSET] TestLogger Information: Information!
[OFFSET] TestLifetime Information: Finished test TestLogWritesToITestOutputHelper in DURATION
", testLogContent, ignoreLineEndingDifferences: true);
}
