private void When_increasing_file_size_using_Seek_followed_by_write_it_must_fail()
{
// Arrange
const string path = @"C:\file.txt";
IFileSystem fileSystem = new FakeFileSystemBuilder()
.IncludingVolume("C:", new FakeVolumeInfoBuilder()
.OfCapacity(8192)
.WithFreeSpace(512))
.IncludingBinaryFile(path, BufferFactory.Create(32))
.Build();
using (IFileStream stream = fileSystem.File.OpenWrite(path))
{
byte[] buffer = BufferFactory.Create(64);
stream.Write(buffer, 0, buffer.Length);
stream.Seek(1280, SeekOrigin.Begin);
// Act
// ReSharper disable once AccessToDisposedClosure
Action action = () => stream.WriteByte(0x33);
// Assert
action.Should().ThrowExactly <IOException>().WithMessage("There is not enough space on the disk.");
AssertFreeSpaceOnDrive(fileSystem, "C:", 448);
}
AssertFileSize(fileSystem, path, 64);
}
private void When_creating_local_file_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)
.IncludingDirectory(@"C:\some")
.Build();
// Act
using (IFileStream stream = fileSystem.File.Create(path))
{
stream.WriteByte(0xFF);
}
// Assert
IFileInfo info = fileSystem.ConstructFileInfo(path);
info.Exists.Should().BeTrue();
info.CreationTimeUtc.Should().Be(creationTimeUtc);
info.LastAccessTimeUtc.Should().Be(creationTimeUtc);
info.LastWriteTimeUtc.Should().Be(creationTimeUtc);
info.Attributes.Should().Be(FileAttributes.Archive);
}
private void When_creating_local_file_it_must_succeed()
{
// Arrange
const string path = @"C:\some\file.txt";
IFileSystem fileSystem = new FakeFileSystemBuilder()
.IncludingDirectory(@"C:\some")
.Build();
// Act
using (IFileStream stream = fileSystem.File.Create(path))
{
stream.WriteByte(0xFF);
}
// Assert
IFileInfo info = fileSystem.ConstructFileInfo(path);
info.Exists.Should().BeTrue();
info.Attributes.Should().Be(FileAttributes.Archive);
}
private void When_writing_to_existing_file_it_must_update_properties_only_after_closing()
{
// Arrange
const string path = @"C:\file.txt";
DateTime createTimeUtc = 2.January(2017).At(22, 14);
var clock = new SystemClock {
UtcNow = () => createTimeUtc
};
IFileSystem fileSystem = new FakeFileSystemBuilder(clock)
.IncludingEmptyFile(path)
.Build();
IFileInfo fileInfo = fileSystem.ConstructFileInfo(path);
DateTime writeTimeUtc = 3.January(2017).At(23, 11);
// Act
using (IFileStream stream = fileSystem.File.Open(path, FileMode.Open))
{
clock.UtcNow = () => writeTimeUtc;
stream.WriteByte(0x20);
// Assert
fileSystem.File.GetCreationTimeUtc(path).Should().Be(createTimeUtc);
fileSystem.File.GetLastWriteTimeUtc(path).Should().Be(createTimeUtc);
fileSystem.File.GetLastAccessTimeUtc(path).Should().Be(createTimeUtc);
fileInfo.Length.Should().Be(0);
}
fileSystem.File.GetCreationTimeUtc(path).Should().Be(createTimeUtc);
fileSystem.File.GetLastWriteTimeUtc(path).Should().Be(writeTimeUtc);
fileSystem.File.GetLastAccessTimeUtc(path).Should().Be(writeTimeUtc);
fileInfo.Refresh();
fileInfo.Length.Should().Be(1);
}
private void When_opening_existing_local_file_in_Truncate_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 lastWriteTimeUtc = 12.September(2016);
clock.UtcNow = () => lastWriteTimeUtc;
// Act
using (IFileStream stream = fileSystem.File.Open(path, FileMode.Truncate))
{
stream.WriteByte(0x20);
}
// Assert
IFileInfo info = fileSystem.ConstructFileInfo(path);
info.Exists.Should().BeTrue();
info.Length.Should().Be(1);
info.CreationTimeUtc.Should().Be(creationTimeUtc);
info.LastAccessTimeUtc.Should().Be(lastWriteTimeUtc);
info.LastWriteTimeUtc.Should().Be(lastWriteTimeUtc);
fileSystem.File.ReadAllText(path).Should().Be(" ");
}
private void When_increasing_file_size_using_Position_followed_by_write_it_must_succeed()
{
// Arrange
const string path = @"C:\file.txt";
IFileSystem fileSystem = new FakeFileSystemBuilder()
.IncludingVolume("C:", new FakeVolumeInfoBuilder()
.OfCapacity(8192)
.WithFreeSpace(4096))
.IncludingBinaryFile(path, BufferFactory.Create(1024))
.Build();
using (IFileStream stream = fileSystem.File.OpenWrite(path))
{
// Act
stream.Position = 1280;
stream.WriteByte(0x33);
// Assert
IDriveInfo driveInfo = fileSystem.ConstructDriveInfo("C:");
driveInfo.AvailableFreeSpace.Should().Be(2815);
}
}
private void When_opening_existing_local_file_in_Truncate_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.Truncate))
{
stream.WriteByte(0x20);
}
// Assert
IFileInfo info = fileSystem.ConstructFileInfo(path);
info.Exists.Should().BeTrue();
info.Length.Should().Be(1);
fileSystem.File.ReadAllText(path).Should().Be(" ");
}