public void Constructor_UnderlyingNoFilter_AllLogs ()
{
var underlying = MockRepository.GenerateMock<ILogStrategy>();
var target = new FiltrableLogStrategy(underlying);
underlying.Expect(u => u.WriteDebug("a", 1));
underlying.Expect(u => u.WriteWarning("b", 2));
underlying.Expect(u => u.WriteError("c", 3));
target.WriteDebug("a", 1);
target.WriteWarning("b", 2);
target.WriteError("c", 3);
underlying.VerifyAllExpectations();
}
public void Constructor_UnderlyingFilterApplied_FilteredLogs ()
{
var underlying = MockRepository.GenerateMock<ILogStrategy>();
var target = new FiltrableLogStrategy(underlying);
underlying.Expect(u => u.WriteDebug("d", 1));
underlying.Expect(u => u.WriteDebug("d", 2));
underlying.Expect(u => u.WriteWarning("w", 1));
underlying.Expect(u => u.WriteWarning("w", 2));
underlying.Expect(u => u.WriteError("e", 1));
underlying.Expect(u => u.WriteError("e", 2));
target.Filter = (l) => l.LogLevel == LogLevel.Debug && l.Message.Length == 1;
target.WriteDebug("d", 1);
target.WriteDebug("d", 2);
target.WriteDebug("d3", 3);
target.WriteWarning("d", 4);
target.WriteError("d", 5);
target.Filter = (l) => l.LogLevel == LogLevel.Warning && l.Message.Length == 1;
target.WriteWarning("w", 1);
target.WriteWarning("w", 2);
target.WriteWarning("w3", 3);
target.WriteDebug("w", 4);
target.WriteError("w", 5);
target.Filter = (l) => l.LogLevel == LogLevel.Error && l.Message.Length == 1;
target.WriteError("e", 1);
target.WriteError("e", 2);
target.WriteError("e3", 3);
target.WriteDebug("e", 4);
target.WriteWarning("e", 5);
underlying.VerifyAllExpectations();
}
/// <summary>
/// Applies the filter.
/// </summary>
/// <param name="filter">Filter.</param>
public static void ApplyFilter(Func<LogMessage, bool> filter)
{
if(s_filtrableLogStrategy == null)
{
s_filtrableLogStrategy = new FiltrableLogStrategy(s_logStrategy);
s_logStrategy = s_filtrableLogStrategy;
}
s_filtrableLogStrategy.Filter = filter;
}