public void OpenWriteThrowsOnNullOrEmptyHash()
{
GitLooseFilesDictionary dict = new GitLooseFilesDictionary(new InMemoryFileSystem(), new NullCompressionStrategy());
Assert.Throws <ArgumentException>(() => dict.OpenWrite(null, create: false))
.WithParamName("hash");
Assert.Throws <ArgumentException>(() => dict.OpenWrite(String.Empty, create: false))
.WithParamName("hash");
}
public void OpenNonExistantKeyForWriteWithoutCreateThrowsKeyNotFound()
{
// Arrange
InMemoryFileSystem fs = new InMemoryFileSystem();
GitLooseFilesDictionary db = new GitLooseFilesDictionary(fs, new NullCompressionStrategy());
// Act/Assert
Assert.Throws <KeyNotFoundException>(() => new StreamWriter(db.OpenWrite("abcdefghijk", create: false)));
}
public void HashesLessThan3CharactersThrowWhenNeededToCreateObjects()
{
// Arrange
InMemoryFileSystem fs = new InMemoryFileSystem();
GitLooseFilesDictionary db = new GitLooseFilesDictionary(fs, new NullCompressionStrategy());
fs.WriteTestFile(@"xy", "Foo");
// Act
Assert.Equal(
"Hash 'xy' does not exist and is not long enough to create a new entry in the database\r\nParameter name: partialHash",
Assert.Throws <ArgumentException>(() => db.OpenWrite("xy", create: true)).Message);
}
public void OpenWriteUsesCompressionStrategyToWrapStreamForCompression()
{
// Arrange
Mock <ICompressionStrategy> mockStrategy = new Mock <ICompressionStrategy>(MockBehavior.Strict);
Stream expected = new MemoryStream();
mockStrategy.Setup(s => s.WrapStreamForCompression(It.IsAny <Stream>()))
.Returns(expected);
InMemoryFileSystem fs = new InMemoryFileSystem();
GitLooseFilesDictionary db = new GitLooseFilesDictionary(fs, mockStrategy.Object);
// Act
using (Stream actual = db.OpenWrite("test", create: true))
{
Assert.Same(expected, actual);
}
}
public void OpenNonExistantKeyForWriteWithCreateCreatesNewData()
{
// Arrange
InMemoryFileSystem fs = new InMemoryFileSystem();
GitLooseFilesDictionary db = new GitLooseFilesDictionary(fs, new NullCompressionStrategy());
// Assume
Assert.False(fs.Exists(@"ab\cdefghijk"));
// Act
using (Stream strm = db.OpenWrite("abcdefghijk", create: true))
using (StreamWriter writer = new StreamWriter(strm))
{
writer.Write("FooBarBaz");
}
// Assert
Assert.Equal("FooBarBaz", fs.ReadTestFile(@"ab\cdefghijk"));
}
public void OpenExistingKeyForWriteAndEditData()
{
// Arrange
InMemoryFileSystem fs = new InMemoryFileSystem();
GitLooseFilesDictionary db = new GitLooseFilesDictionary(fs, new NullCompressionStrategy());
fs.WriteTestFile(@"ab\cdefghijk", "Foo");
// Act
using (Stream strm = db.OpenWrite("abcdefghijk", create: false))
using (StreamWriter writer = new StreamWriter(strm))
{
strm.Seek(2, SeekOrigin.Begin);
writer.Write("Bar");
}
// Assert
Assert.Equal("FoBar", fs.ReadTestFile(@"ab\cdefghijk"));
}