public void DoSomethingLogsUsingCorrectFormat()
{
// Arrange
var loggerFactory = MELTBuilder.CreateLoggerFactory();
var logger = loggerFactory.CreateLogger <Sample>();
var sample = new Sample(logger);
// Act
sample.DoSomething();
// Assert
var log = Assert.Single(loggerFactory.LogEntries);
// Assert the the log format template
Assert.Equal("The answer is {number}", log.Format);
}
public void DoSomethingLogsCorrectParameter()
{
// Arrange
var loggerFactory = MELTBuilder.CreateLoggerFactory();
var logger = loggerFactory.CreateLogger <Sample>();
var sample = new Sample(logger);
// Act
sample.DoSomething();
// Assert
var log = Assert.Single(loggerFactory.LogEntries);
// Assert specific parameters in the log entry
LogValuesAssert.Contains("number", 42, log);
}
public void DoSomethingLogsMessage()
{
// Arrange
var loggerFactory = MELTBuilder.CreateLoggerFactory();
var logger = loggerFactory.CreateLogger <Sample>();
var sample = new Sample(logger);
// Act
sample.DoSomething();
// Assert
var log = Assert.Single(loggerFactory.LogEntries);
// Assert the message rendered by a default formatter
Assert.Equal("The answer is 42", log.Message);
}
public void DoMoreLogsFormat_NotCheckingNested()
{
// Arrange
var loggerFactory = MELTBuilder.CreateLoggerFactory(options => options.FilterByTypeName <More>());
var sampleLogger = loggerFactory.CreateLogger <Sample>();
var moreLogger = loggerFactory.CreateLogger <More>();
var more = new More(new Sample(sampleLogger), moreLogger);
// Act
more.DoMore();
// Assert
var log = Assert.Single(loggerFactory.LogEntries);
Assert.Equal("More is less.", log.Format);
}
public void DoMoreLogsMessage()
{
// Arrange
var loggerFactory = MELTBuilder.CreateLoggerFactory();
var sampleLogger = loggerFactory.CreateLogger <Sample>();
var moreLogger = loggerFactory.CreateLogger <More>();
var more = new More(new Sample(sampleLogger), moreLogger);
// Act
more.DoMore();
// Assert
Assert.Collection(loggerFactory.LogEntries,
l => Assert.Equal("More is less.", l.Message),
l => Assert.Equal("The answer is 42", l.Message));
}
public void DoExceptionalLogsException()
{
// Arrange
var loggerFactory = MELTBuilder.CreateLoggerFactory();
var logger = loggerFactory.CreateLogger <Sample>();
var sample = new Sample(logger);
// Act
sample.DoExceptional();
// Assert
var log = Assert.Single(loggerFactory.LogEntries);
// Assert the message rendered by a default formatter
Assert.Equal("There was a problem", log.Message);
// Assert specific parameters in the log entry
LogValuesAssert.Contains("error", "problem", log);
// Assert the exception
var exception = Assert.IsType <ArgumentNullException>(log.Exception);
Assert.Equal("foo", exception.ParamName);
}
