private void When_reading_from_existing_file_it_must_update_file_timings()
{
// Arrange
const string path = @"C:\some\file.txt";
DateTime creationTimeUtc = 17.March(2006).At(14, 03, 53).AsUtc();
var clock = new SystemClock(() => creationTimeUtc);
IFileSystem fileSystem = new FakeFileSystemBuilder(clock)
.IncludingTextFile(path, DefaultContents)
.Build();
DateTime changeTimeUtc = 18.March(2006).At(14, 03, 53).AsUtc();
clock.UtcNow = () => changeTimeUtc;
// Act
using (IFileStream stream = fileSystem.File.Open(path, FileMode.Open))
{
stream.ReadByte();
}
// Assert
fileSystem.File.GetCreationTimeUtc(path).Should().Be(creationTimeUtc);
fileSystem.File.GetLastWriteTimeUtc(path).Should().Be(creationTimeUtc);
fileSystem.File.GetLastAccessTimeUtc(path).Should().Be(changeTimeUtc);
}
private void When_reading_from_existing_file_it_must_update_properties_only_after_closing()
{
// Arrange
const string path = @"C:\file.txt";
DateTime createTimeUtc = 4.January(2017).At(22, 14);
var clock = new SystemClock {
UtcNow = () => createTimeUtc
};
IFileSystem fileSystem = new FakeFileSystemBuilder(clock)
.IncludingTextFile(path, "X")
.Build();
DateTime accessTimeUtc = 5.January(2017).At(23, 11);
clock.UtcNow = () => accessTimeUtc;
// Act
using (IFileStream stream = fileSystem.File.Open(path, FileMode.Open, FileAccess.Read))
{
stream.ReadByte();
// Assert
fileSystem.File.GetCreationTimeUtc(path).Should().Be(createTimeUtc);
fileSystem.File.GetLastWriteTimeUtc(path).Should().Be(createTimeUtc);
fileSystem.File.GetLastAccessTimeUtc(path).Should().Be(createTimeUtc);
}
fileSystem.File.GetCreationTimeUtc(path).Should().Be(createTimeUtc);
fileSystem.File.GetLastWriteTimeUtc(path).Should().Be(createTimeUtc);
fileSystem.File.GetLastAccessTimeUtc(path).Should().Be(accessTimeUtc);
}
private void When_reading_from_writeonly_stream_it_must_fail()
{
// Arrange
const string path = @"C:\file.txt";
IFileSystem fileSystem = new FakeFileSystemBuilder()
.IncludingEmptyFile(path)
.Build();
using (IFileStream stream = fileSystem.File.Open(path, FileMode.Open, FileAccess.Write))
{
// Act
// ReSharper disable once AccessToDisposedClosure
Action action = () => stream.ReadByte();
// Assert
action.ShouldThrow <NotSupportedException>().WithMessage("Stream does not support reading.");
}
}
private void When_opening_existing_local_file_in_OpenOrCreate_mode_it_must_succeed()
{
// Arrange
const string path = @"C:\some\file.txt";
IFileSystem fileSystem = new FakeFileSystemBuilder()
.IncludingTextFile(path, DefaultContents)
.Build();
// Act
using (IFileStream stream = fileSystem.File.Open(path, FileMode.OpenOrCreate))
{
stream.ReadByte();
// Assert
stream.Length.Should().Be(DefaultContents.Length);
}
IFileInfo info = fileSystem.ConstructFileInfo(path);
info.Exists.Should().BeTrue();
}
private void When_opening_existing_local_file_in_OpenOrCreate_mode_it_must_succeed()
{
// Arrange
const string path = @"C:\some\file.txt";
DateTime creationTimeUtc = 9.September(2016);
var clock = new SystemClock
{
UtcNow = () => creationTimeUtc
};
IFileSystem fileSystem = new FakeFileSystemBuilder(clock)
.IncludingTextFile(path, DefaultContents)
.Build();
DateTime lastAccessTimeUtc = 12.September(2016);
clock.UtcNow = () => lastAccessTimeUtc;
// Act
using (IFileStream stream = fileSystem.File.Open(path, FileMode.OpenOrCreate))
{
stream.ReadByte();
// Assert
stream.Length.Should().Be(DefaultContents.Length);
}
IFileInfo info = fileSystem.ConstructFileInfo(path);
info.Exists.Should().BeTrue();
info.CreationTimeUtc.Should().Be(creationTimeUtc);
info.LastAccessTimeUtc.Should().Be(lastAccessTimeUtc);
info.LastWriteTimeUtc.Should().Be(creationTimeUtc);
}
