public void entries_ticks_for_every_log_entry()
{
var sut = new DefaultLoggerService();
var entries = new List <LogEntry>();
sut.Entries.Subscribe(entries.Add);
var logger1 = sut.GetLogger("First");
var logger2 = sut.GetLogger("Second");
logger1.Debug("Debug message.");
logger1.Warn("Some warning.");
logger2.Info("Something from logger 2.");
logger1.Debug("Another debug message.");
logger2.Error("Something bad happened.");
Assert.Equal(5, entries.Count);
Assert.Equal(LogLevel.Debug, entries[0].Level);
Assert.Equal("Debug message.", entries[0].Message);
Assert.Equal(LogLevel.Warn, entries[1].Level);
Assert.Equal("Some warning.", entries[1].Message);
Assert.Equal(LogLevel.Info, entries[2].Level);
Assert.Equal("Something from logger 2.", entries[2].Message);
Assert.Equal(LogLevel.Debug, entries[3].Level);
Assert.Equal("Another debug message.", entries[3].Message);
Assert.Equal(LogLevel.Error, entries[4].Level);
Assert.Equal("Something bad happened.", entries[4].Message);
}
public void get_logger_by_name_returns_the_same_logger_for_the_same_name()
{
var sut = new DefaultLoggerService();
var logger1 = sut.GetLogger("Name");
var logger2 = sut.GetLogger("Name");
Assert.Same(logger1, logger2);
}
public void get_logger_for_type_returns_the_same_logger_for_the_same_type()
{
var sut = new DefaultLoggerService();
var logger1 = sut.GetLogger(this.GetType());
var logger2 = sut.GetLogger(this.GetType());
Assert.Same(logger1, logger2);
}
public void threshold_determines_which_log_entries_tick()
{
var sut = new DefaultLoggerService();
var logger = sut.GetLogger(this.GetType());
var entries = new List <LogEntry>();
sut.Entries.Subscribe(entries.Add);
logger.Debug("Expected 1");
logger.Info("Expected 2");
sut.Threshold = LogLevel.Info;
logger.Debug("NOT expected");
logger.Info("Expected 3");
logger.Warn("Expected 4");
sut.Threshold = LogLevel.Perf;
logger.Info("NOT expected");
logger.Perf("Expected 5").Dispose();
sut.Threshold = LogLevel.Warn;
logger.Perf("NOT expected").Dispose();
logger.Warn("Expected 6");
sut.Threshold = LogLevel.Error;
logger.Warn("NOT expected");
logger.Error("Expected 7");
sut.Threshold = LogLevel.None;
logger.Error("NOT expected");
Assert.Equal(7, entries.Count);
Assert.Equal("Expected 1", entries[0].Message);
Assert.Equal("Expected 2", entries[1].Message);
Assert.Equal("Expected 3", entries[2].Message);
Assert.Equal("Expected 4", entries[3].Message);
Assert.StartsWith("Expected 5 [", entries[4].Message);
Assert.Equal("Expected 6", entries[5].Message);
Assert.Equal("Expected 7", entries[6].Message);
}
public void get_logger_by_name_returns_a_logger_with_the_specified_name()
{
var sut = new DefaultLoggerService();
var logger = sut.GetLogger("Some Logger");
Assert.Equal("Some Logger", logger.Name);
}
public void get_logger_for_type_returns_a_logger_with_the_full_name_of_the_type_passed_in()
{
var sut = new DefaultLoggerService();
var logger = sut.GetLogger(this.GetType());
Assert.Equal(this.GetType().FullName, logger.Name);
}
public void logging_formatted_message_with_exception_generates_appropriate_log_entry(LogLevel level, string format, object[] args)
{
var service = new DefaultLoggerService();
var sut = service.GetLogger(this.GetType());
var logEntry = default(LogEntry);
service.Entries.Subscribe(x => logEntry = x);
var exception = new Exception("Circular logic detected.");
var parameters = new object[] { sut, exception, format }
.Concat(args)
.ToArray();
var typeParameters = args
.Select(arg => arg.GetType())
.ToArray();
typeof(LoggerExtensions)
.GetTypeInfo()
.DeclaredMethods
.Where(
method =>
method.Name == level.ToString() &&
method.GetParameters().Length == parameters.Length &&
method.GetParameters()[1].ParameterType == typeof(Exception) &&
method.GetParameters()[3].ParameterType != typeof(object[]))
.Single()
.MakeGenericMethod(typeParameters)
.Invoke(null, parameters);
Assert.Equal(this.GetType().FullName, logEntry.Name);
Assert.Equal(level, logEntry.Level);
Assert.Equal(Environment.CurrentManagedThreadId, logEntry.ThreadId);
Assert.StartsWith(string.Format(format, args) + "System.Exception: Circular logic detected.", logEntry.Message);
}
public void name_returns_the_logger_name()
{
var service = new DefaultLoggerService();
var sut = service.GetLogger("Captain Winters");
Assert.Equal("Captain Winters", sut.Name);
}
public void is_error_enabled_returns_correct_value()
{
var service = new DefaultLoggerService();
var sut = service.GetLogger(this.GetType());
Assert.True(sut.IsErrorEnabled);
service.Threshold = LogLevel.None;
Assert.False(sut.IsErrorEnabled);
}
public void is_verbose_enabled_returns_correct_value()
{
var service = new DefaultLoggerService();
var sut = service.GetLogger(this.GetType());
Assert.True(sut.IsVerboseEnabled);
service.Threshold = LogLevel.Debug;
Assert.False(sut.IsVerboseEnabled);
}
public void perf_logs_only_once_disposable_is_disposed()
{
var service = new DefaultLoggerService();
var sut = service.GetLogger(this.GetType());
var logged = false;
service.Entries.Subscribe(x => logged = true);
var disposable = sut.Perf("Here is the message.");
Assert.False(logged);
disposable.Dispose();
Assert.True(logged);
}
public void logging_message_generates_appropriate_log_entry(LogLevel level, string message)
{
var service = new DefaultLoggerService();
var sut = service.GetLogger(this.GetType());
var logEntry = default(LogEntry);
service.Entries.Subscribe(x => logEntry = x);
var result = typeof(LoggerExtensions)
.GetTypeInfo()
.DeclaredMethods
.Where(method => method.Name == level.ToString() && method.GetParameters().Length == 2)
.Single()
.Invoke(null, new object[] { sut, message });
(result as IDisposable)?.Dispose();
Assert.Equal(this.GetType().FullName, logEntry.Name);
Assert.Equal(level, logEntry.Level);
Assert.Equal(Environment.CurrentManagedThreadId, logEntry.ThreadId);
Assert.StartsWith(message, logEntry.Message);
}