public async Task TestWithEmptyFiles()
{
var patchSystem = XdeltaPatchSystemFactory.Preferred;
var patchBuilder = new XdeltaPatchBuilder(patchSystem);
using (var oldFile = new TemporaryFile())
using (var newFile = new TemporaryFile())
using (var patchFile = new TemporaryFile())
{
await patchBuilder.CreatePatchAsync(oldFile.Path, newFile.Path, patchFile.Path);
Assert.AreNotEqual(0, new FileInfo(patchFile.Path).Length);
}
}
public async Task CompressedContentsDoNotDependOnInputPath()
{
var patchBuilder = new XdeltaPatchBuilder(XdeltaPatchSystemFactory.Preferred);
using (var newFile1 = new TemporaryFile())
using (var newFile2 = new TemporaryFile())
using (var patchFile1 = new TemporaryFile())
using (var patchFile2 = new TemporaryFile())
{
File.WriteAllText(newFile1.Path, "b");
File.WriteAllText(newFile2.Path, "b");
await patchBuilder.CompressAsync(newFile1.Path, patchFile1.Path);
await patchBuilder.CompressAsync(newFile2.Path, patchFile2.Path);
CollectionAssert.AreEquivalent(File.ReadAllBytes(patchFile1.Path), File.ReadAllBytes(patchFile2.Path));
}
}
public async Task TestRoundtrip()
{
var patchSystem = XdeltaPatchSystemFactory.Preferred;
var patchBuilder = new XdeltaPatchBuilder(patchSystem);
var patcher = new XdeltaPatcher(patchSystem);
using (var oldFile = new TemporaryFile())
using (var newFile = new TemporaryFile())
using (var patchFile = new TemporaryFile())
using (var patchedFile = new TemporaryFile())
{
File.WriteAllText(oldFile.Path, "old");
File.WriteAllText(newFile.Path, "new");
await patchBuilder.CreatePatchAsync(oldFile.Path, newFile.Path, patchFile.Path);
await patcher.ApplyPatchAsync(oldFile.Path, patchedFile.Path, patchFile.Path);
Assert.AreEqual("new", File.ReadAllText(patchedFile.Path));
}
}
public static void ClassInitialize(TestContext context)
{
_patchDir = new TemporaryDirectory();
using (var oldFile = new TemporaryFile())
using (var newDeltaFile = new TemporaryFile())
using (var newFullFile = new TemporaryFile())
{
File.WriteAllText(oldFile.Path, "old");
File.WriteAllText(newDeltaFile.Path, "new_delta");
File.WriteAllText(newFullFile.Path, "new_full");
string oldHash = SHA256.Get(Encoding.UTF8.GetBytes("old"));
string newDeltaHash = SHA256.Get(Encoding.UTF8.GetBytes("new_delta"));
string newFullHash = SHA256.Get(Encoding.UTF8.GetBytes("new_full"));
Directory.CreateDirectory(Path.Combine(_patchDir.Path, "delta"));
Directory.CreateDirectory(Path.Combine(_patchDir.Path, "full"));
var patchBuilder = new XdeltaPatchBuilder(XdeltaPatchSystemFactory.Preferred);
patchBuilder.CreatePatchAsync(oldFile.Path, newDeltaFile.Path, Path.Combine(_patchDir.Path, "delta/" + newDeltaHash + "_from_" + oldHash)).Wait();
patchBuilder.CompressAsync(newFullFile.Path, Path.Combine(_patchDir.Path, "full/" + newFullHash)).Wait();
_patchDirFiles = DirectoryPathIterator.GetChildPathsRecursive(_patchDir.Path).ToArray();
}
}
