private void When_waiting_for_file_change_multiple_times_it_must_succeed()
{
// Arrange
const string directoryToWatch = @"c:\some";
const string fileNameToUpdate = "file.txt";
string pathToFileToUpdate = Path.Combine(directoryToWatch, fileNameToUpdate);
FakeFileSystem fileSystem = new FakeFileSystemBuilder()
.IncludingEmptyFile(pathToFileToUpdate)
.Build();
// ReSharper disable once ConvertToLocalFunction
Action <DateTime> updateCreationTimeAction = creationTimeUtc =>
{
Thread.Sleep(SleepTimeToEnsureWaiterInitializationHasCompleted);
fileSystem.File.SetCreationTimeUtc(pathToFileToUpdate, creationTimeUtc);
};
using (FakeFileSystemWatcher watcher = fileSystem.ConstructFileSystemWatcher(directoryToWatch))
{
watcher.NotifyFilter = NotifyFilters.CreationTime;
Task.Run(() => updateCreationTimeAction(1.January(2000)));
// Act
WaitForChangedResult result1 = watcher.WaitForChanged(WatcherChangeTypes.Changed, MaxTestDurationInMilliseconds);
Task.Run(() => updateCreationTimeAction(2.January(2000)));
WaitForChangedResult result2 = watcher.WaitForChanged(WatcherChangeTypes.Changed, MaxTestDurationInMilliseconds);
// Assert
result1.TimedOut.Should().BeFalse();
result1.ChangeType.Should().Be(WatcherChangeTypes.Changed);
result1.Name.Should().Be(fileNameToUpdate);
result1.OldName.Should().BeNull();
result2.TimedOut.Should().BeFalse();
result2.ChangeType.Should().Be(WatcherChangeTypes.Changed);
result2.Name.Should().Be(fileNameToUpdate);
result2.OldName.Should().BeNull();
}
}
private void When_waiting_for_file_change_while_watcher_was_not_running_it_must_be_stopped_after_wait()
{
// Arrange
const string directoryToWatch = @"c:\some";
const string fileNameToUpdate = "file.txt";
string pathToFileToUpdate = Path.Combine(directoryToWatch, fileNameToUpdate);
FakeFileSystem fileSystem = new FakeFileSystemBuilder()
.IncludingEmptyFile(pathToFileToUpdate)
.Build();
using (FakeFileSystemWatcher watcher = fileSystem.ConstructFileSystemWatcher(directoryToWatch))
{
watcher.NotifyFilter = NotifyFilters.LastWrite;
using (var listener = new FileSystemWatcherEventListener(watcher))
{
watcher.EnableRaisingEvents = false;
fileSystem.File.SetLastWriteTimeUtc(pathToFileToUpdate, 1.January(2000));
Thread.Sleep(SleepTimeToEnsureOperationHasArrivedAtWatcherConsumerLoop);
Task.Run(() =>
{
Thread.Sleep(SleepTimeToEnsureWaiterInitializationHasCompleted);
fileSystem.File.SetLastWriteTimeUtc(pathToFileToUpdate, 2.January(2000));
});
// Act
WaitForChangedResult result =
watcher.WaitForChanged(WatcherChangeTypes.Changed, MaxTestDurationInMilliseconds);
fileSystem.File.SetLastWriteTimeUtc(pathToFileToUpdate, 3.January(2000));
watcher.FinishAndWaitForFlushed(MaxTestDurationInMilliseconds);
// Assert
result.TimedOut.Should().BeFalse();
result.ChangeType.Should().Be(WatcherChangeTypes.Changed);
result.Name.Should().Be(fileNameToUpdate);
result.OldName.Should().BeNull();
string text = string.Join(Environment.NewLine, listener.GetEventsCollectedAsText());
text.Should().Be(@"
* file.txt
".TrimLines());
}
}
}
private void When_waiting_for_disposed_watcher_it_must_fail()
{
// Arrange
FakeFileSystem fileSystem = new FakeFileSystemBuilder()
.Build();
FakeFileSystemWatcher watcher = fileSystem.ConstructFileSystemWatcher();
watcher.Dispose();
// Act
Action action = () => watcher.WaitForChanged(WatcherChangeTypes.All, MaxTestDurationInMilliseconds);
// Assert
action.Should().ThrowExactly <ObjectDisposedException>().WithMessage("Cannot access a disposed object.*")
.And.ObjectName.Should().Be("FileSystemWatcher");
}
private void When_waiting_for_file_rename_while_files_are_renamed_it_must_succeed()
{
// Arrange
const string directoryToWatch = @"c:\some";
const string sourceFileName1 = "source1.txt";
const string targetFileName1 = "target1.txt";
const string sourceFileName2 = "source2.txt";
const string targetFileName2 = "target2.txt";
string pathToSourceFile1 = Path.Combine(directoryToWatch, sourceFileName1);
string pathToTargetFile1 = Path.Combine(directoryToWatch, targetFileName1);
string pathToSourceFile2 = Path.Combine(directoryToWatch, sourceFileName2);
string pathToTargetFile2 = Path.Combine(directoryToWatch, targetFileName2);
FakeFileSystem fileSystem = new FakeFileSystemBuilder()
.IncludingEmptyFile(pathToSourceFile1)
.IncludingEmptyFile(pathToSourceFile2)
.Build();
using (FakeFileSystemWatcher watcher = fileSystem.ConstructFileSystemWatcher(directoryToWatch))
{
watcher.NotifyFilter = NotifyFilters.FileName;
Task.Run(() =>
{
// ReSharper disable once AccessToDisposedClosure
BlockUntilStarted(watcher);
fileSystem.File.Move(pathToSourceFile1, pathToTargetFile1);
fileSystem.File.Move(pathToSourceFile2, pathToTargetFile2);
});
// Act
WaitForChangedResult result = watcher.WaitForChanged(WatcherChangeTypes.Renamed, MaxTestDurationInMilliseconds);
// Assert
result.TimedOut.Should().BeFalse();
result.ChangeType.Should().Be(WatcherChangeTypes.Renamed);
result.Name.Should().Be(targetFileName1);
result.OldName.Should().Be(sourceFileName1);
}
}
private void When_waiting_for_changes_with_negative_timeout_it_must_fail()
{
// Arrange
const string directoryToWatch = @"c:\some";
FakeFileSystem fileSystem = new FakeFileSystemBuilder()
.IncludingDirectory(directoryToWatch)
.Build();
using (FakeFileSystemWatcher watcher = fileSystem.ConstructFileSystemWatcher(directoryToWatch))
{
// Act
// ReSharper disable once AccessToDisposedClosure
Action action = () => watcher.WaitForChanged(WatcherChangeTypes.All, -5);
// Assert
action.Should().ThrowExactly <ArgumentOutOfRangeException>().WithMessage(
"Specified argument was out of the range of valid values.*");
}
}
private void When_waiting_for_change_it_must_apply_filters()
{
// Arrange
const string directoryToWatch = @"c:\some";
string pathToMismatchingFile = Path.Combine(directoryToWatch, "OtherName.txt");
string pathToMismatchingDirectory = Path.Combine(directoryToWatch, "SomeFolderIgnored");
string pathToMatchingFile = Path.Combine(directoryToWatch, "Subfolder", "SomeFile.txt");
FakeFileSystem fileSystem = new FakeFileSystemBuilder()
.IncludingEmptyFile(pathToMismatchingFile)
.IncludingDirectory(Path.Combine(directoryToWatch, "Subfolder"))
.IncludingEmptyFile(pathToMatchingFile)
.Build();
using (FakeFileSystemWatcher watcher = fileSystem.ConstructFileSystemWatcher(directoryToWatch))
{
watcher.NotifyFilter = NotifyFilters.FileName | NotifyFilters.Size;
watcher.IncludeSubdirectories = true;
watcher.Filter = "Some*";
Task.Run(() =>
{
// ReSharper disable once AccessToDisposedClosure
BlockUntilStarted(watcher);
fileSystem.Directory.CreateDirectory(pathToMismatchingDirectory);
fileSystem.File.AppendAllText(pathToMismatchingFile, "IgnoreMe");
fileSystem.File.AppendAllText(pathToMatchingFile, "NotifyForMe");
});
// Act
WaitForChangedResult result = watcher.WaitForChanged(WatcherChangeTypes.All, MaxTestDurationInMilliseconds);
// Assert
result.TimedOut.Should().BeFalse();
result.ChangeType.Should().Be(WatcherChangeTypes.Changed);
result.Name.Should().Be(@"Subfolder\SomeFile.txt");
result.OldName.Should().BeNull();
}
}
private void When_waiting_for_changes_while_timeout_expires_it_must_succeed()
{
// Arrange
const string directoryToWatch = @"c:\some";
FakeFileSystem fileSystem = new FakeFileSystemBuilder()
.IncludingDirectory(directoryToWatch)
.Build();
using (FakeFileSystemWatcher watcher = fileSystem.ConstructFileSystemWatcher(directoryToWatch))
{
// Act
WaitForChangedResult result = watcher.WaitForChanged(WatcherChangeTypes.All, 1000);
// Assert
result.TimedOut.Should().BeTrue();
result.ChangeType.Should().Be(0);
result.Name.Should().BeNull();
result.OldName.Should().BeNull();
}
}
private void When_waiting_for_file_change_while_file_attributes_are_changed_it_must_succeed()
{
// Arrange
const string directoryToWatch = @"c:\some";
const string fileNameToUpdate1 = "file1.txt";
const string fileNameToUpdate2 = "file2.txt";
string pathToFileToUpdate1 = Path.Combine(directoryToWatch, fileNameToUpdate1);
string pathToFileToUpdate2 = Path.Combine(directoryToWatch, fileNameToUpdate2);
FakeFileSystem fileSystem = new FakeFileSystemBuilder()
.IncludingEmptyFile(pathToFileToUpdate1)
.IncludingEmptyFile(pathToFileToUpdate2)
.Build();
using (FakeFileSystemWatcher watcher = fileSystem.ConstructFileSystemWatcher(directoryToWatch))
{
watcher.NotifyFilter = NotifyFilters.Attributes;
Task.Run(() =>
{
// ReSharper disable once AccessToDisposedClosure
BlockUntilStarted(watcher);
fileSystem.File.SetAttributes(pathToFileToUpdate1, FileAttributes.System);
fileSystem.File.SetAttributes(pathToFileToUpdate2, FileAttributes.System);
});
// Act
WaitForChangedResult result = watcher.WaitForChanged(WatcherChangeTypes.Changed, MaxTestDurationInMilliseconds);
// Assert
result.TimedOut.Should().BeFalse();
result.ChangeType.Should().Be(WatcherChangeTypes.Changed);
result.Name.Should().Be(fileNameToUpdate1);
result.OldName.Should().BeNull();
}
}
private void When_waiting_for_directory_deletion_while_directories_are_deleted_it_must_succeed()
{
// Arrange
const string directoryToWatch = @"c:\some";
const string directoryNameToDelete1 = "subfolder1";
const string directoryNameToDelete2 = "subfolder2";
string pathToDirectoryToDelete1 = Path.Combine(directoryToWatch, directoryNameToDelete1);
string pathToDirectoryToDelete2 = Path.Combine(directoryToWatch, directoryNameToDelete2);
FakeFileSystem fileSystem = new FakeFileSystemBuilder()
.IncludingDirectory(pathToDirectoryToDelete1)
.IncludingDirectory(pathToDirectoryToDelete2)
.Build();
using (FakeFileSystemWatcher watcher = fileSystem.ConstructFileSystemWatcher(directoryToWatch))
{
watcher.NotifyFilter = NotifyFilters.DirectoryName;
Task.Run(() =>
{
// ReSharper disable once AccessToDisposedClosure
BlockUntilStarted(watcher);
fileSystem.Directory.Delete(pathToDirectoryToDelete1);
fileSystem.Directory.Delete(pathToDirectoryToDelete2);
});
// Act
WaitForChangedResult result = watcher.WaitForChanged(WatcherChangeTypes.Deleted, MaxTestDurationInMilliseconds);
// Assert
result.TimedOut.Should().BeFalse();
result.ChangeType.Should().Be(WatcherChangeTypes.Deleted);
result.Name.Should().Be(directoryNameToDelete1);
result.OldName.Should().BeNull();
}
}