public override void ExecuteJob()
{
_logger.Info("Starting execution of Custom Job");
var result = _someService.DoSomething();
_logger.Debug($"The result of execution: {result}");
_logger.Info("The execution has been completed successfully");
}
public void LogsErrorWhenInputIsZero()
{
var mockLogger = new Mock <ILogger <SomeService> >();
var someService = new SomeService(mockLogger.Object);
someService.DoSomething(0);
// Option 1: Try to verify the actual code that was called.
// Doesn't work.
mockLogger.Verify(l => l.LogError(It.IsAny <Exception>(), It.IsAny <string>(), 0));
}
public void LogsErrorWhenInputIsZeroTake3()
{
var fakeLogger = new FakeLogger();
var someService = new SomeService(fakeLogger);
someService.DoSomething(0);
// Option 3: Create your own instance of ILogger<T> that has a non-extension version of the method
// Doesn't work, unless you change system under test to take in a FakeLogger (which is useless)
Assert.NotNull(FakeLogger.ProvidedException);
Assert.NotNull(FakeLogger.ProvidedMessage);
}
public void LogsErrorWhenInputIsZeroTake2()
{
var mockLogger = new Mock <ILogger <SomeService> >();
var someService = new SomeService(mockLogger.Object);
someService.DoSomething(0);
// Option 2: Look up what instance method the extension method actually calls:
// https://github.com/aspnet/Logging/blob/dev/src/Microsoft.Extensions.Logging.Abstractions/LoggerExtensions.cs#L342
// Mock the underlying call instead.
// Works but is ugly and brittle
mockLogger.Verify(l => l.Log(LogLevel.Error, 0, It.IsAny <FormattedLogValues>(), It.IsAny <Exception>(),
It.IsAny <Func <object, Exception, string> >()));
}
public override string ToString()
{
return(_service.DoSomething(_value));
}
public string Get(int id)
{
_someService.DoSomething(id);
return("value");
}
