public void SupersededWriterTest()
{
var logWriter = new TestLogWriter();
var accumulator = new LogAccumulator(logWriter, null);
Assert.AreSame(logWriter, accumulator.SupersededWriter);
}
public void FileLogWriterConstructorTest()
{
FileLogWriter target;
ILogWriter fallbackWriter = new TestLogWriter();
// Test empty/null file name -- [MH] This can't be tested because of the 'Debugger.IsAttached' condition in FileLogWriter.
//target = new FileLogWriter("", LogSyncMode.Message, null);
//accessor = new FileLogWriter_Accessor(new PrivateObject(target));
//string autoGeneratedPath = accessor.logTarget;
//Assert.IsFalse(!string.IsNullOrEmpty(autoGeneratedPath));
//Assert.AreEqual(System.Environment.SpecialFolder.DesktopDirectory, Path.GetDirectoryName(autoGeneratedPath));
string fileName = "TestFile.log";
target = new FileLogWriter(fileName, LogSyncMode.Message, fallbackWriter);
PrivateObject privateObj = new PrivateObject(target);
Assert.AreEqual(privateObj.GetFieldOrProperty("fallbackWriter"), fallbackWriter);
Assert.AreEqual(fileName, privateObj.GetFieldOrProperty("logTarget"));
Assert.IsTrue((bool)privateObj.GetFieldOrProperty("closeAfterWrite"));
Assert.IsFalse((bool)privateObj.GetFieldOrProperty("autoFlush"));
target = new FileLogWriter(fileName, LogSyncMode.Flush, fallbackWriter);
privateObj = new PrivateObject(target);
Assert.AreEqual(fileName, privateObj.GetFieldOrProperty("logTarget"));
Assert.IsFalse((bool)privateObj.GetFieldOrProperty("closeAfterWrite"));
Assert.IsTrue((bool)privateObj.GetFieldOrProperty("autoFlush"));
target = new FileLogWriter(fileName, LogSyncMode.Session, fallbackWriter);
privateObj = new PrivateObject(target);
Assert.AreEqual(fileName, privateObj.GetFieldOrProperty("logTarget"));
Assert.IsFalse((bool)privateObj.GetFieldOrProperty("closeAfterWrite"));
Assert.IsFalse((bool)privateObj.GetFieldOrProperty("autoFlush"));
}
public void DisposeTest()
{
var supersededWriter = new TestLogWriter();
bool callbackCalled = false;
LogAccumulator.DisposalCallback disposalCallback = () => { callbackCalled = true; };
LogAccumulator target = new LogAccumulator(supersededWriter, disposalCallback);
target.Dispose();
Assert.IsTrue(callbackCalled);
callbackCalled = false;
target.Dispose();
Assert.IsFalse(callbackCalled);
}
public void WriteLineTest()
{
ILogWriter supersededWriter = new TestLogWriter();
LogAccumulator.DisposalCallback disposalCallback = null;
LogAccumulator target = new LogAccumulator(supersededWriter, disposalCallback);
string message = "Hello";
target.WriteLine(message);
PrivateObject privateObj = new PrivateObject(target);
Assert.AreEqual(message + Environment.NewLine, privateObj.GetFieldOrProperty("accumulatedMessages").ToString());
target.WriteLine(message);
Assert.AreEqual(message + Environment.NewLine + message + Environment.NewLine, privateObj.GetFieldOrProperty("accumulatedMessages").ToString());
}
public void DiscardTest()
{
var supersededWriter = new TestLogWriter();
LogAccumulator.DisposalCallback disposalCallback = null;
LogAccumulator target = new LogAccumulator(supersededWriter, disposalCallback);
string message = "Hello";
target.WriteLine(message);
target.Discard();
var actual = supersededWriter.Output.ToString().Replace(Environment.NewLine, "$n");
Assert.AreEqual("", actual, "(Note: $n replaces new line characters)");
PrivateObject privateObj = new PrivateObject(target);
Assert.AreEqual("", privateObj.GetFieldOrProperty("accumulatedMessages").ToString());
}
public void FallbackWriteTest()
{
FileLogWriter target;
//FileLogWriter_Accessor accessor;
TestLogWriter fallbackWriter = new TestLogWriter();
target = new FileLogWriter(Path.Combine(TestContext.DeploymentDirectory, "testlog.txt"), LogSyncMode.Message, fallbackWriter);
// Writing should be successful, fallback write should not be called.
target.WriteLine("Hello");
Assert.IsFalse(fallbackWriter.FlushWasInvoked);
Assert.IsFalse(fallbackWriter.WriteLineWasInvoked);
Assert.IsFalse(fallbackWriter.WriteWasInvoked);
target = new FileLogWriter("c:\\this_dir_does_not_exist\\testlog.txt", LogSyncMode.Message, fallbackWriter);
// First time printing will cause an exception and will print to the fallback writer.
target.WriteLine("Hello");
Assert.IsTrue(fallbackWriter.WriteWasInvoked);
// At this point the fallback writer has an exception message from the Open operation.
fallbackWriter.ResetInvocationIndicators();
fallbackWriter.ClearOutput();
target.WriteLine("Hello");
string expected = "Hello" + "$n";
string actual = fallbackWriter.Output.ToString().Replace(Environment.NewLine, "$n");
Assert.AreEqual(expected, actual);
fallbackWriter.ResetInvocationIndicators();
fallbackWriter.ClearOutput();
target.Write("Hello");
expected = "Hello";
actual = fallbackWriter.Output.ToString().Replace(Environment.NewLine, "$n");
Assert.AreEqual(expected, actual);
}
