public async Task TestIdenticalFiles() // Detects bug when attempting to overwrite a file with the same SHA256.
{
using (var oldDir = new TemporaryDirectory())
using (var newDir = new TemporaryDirectory())
using (var patchDir = new TemporaryDirectory())
using (var builder = new DirectoryPatchBuilder(new XdeltaPatchBuilder(XdeltaPatchSystemFactory.Preferred)))
{
File.WriteAllText(Path.Combine(oldDir.Path, "a"), DummyDataA);
File.WriteAllText(Path.Combine(oldDir.Path, "b"), DummyDataA);
File.WriteAllText(Path.Combine(newDir.Path, "a"), DummyDataB);
File.WriteAllText(Path.Combine(newDir.Path, "b"), DummyDataB);
await builder.CreatePatchAsync(oldDir.Path, newDir.Path, patchDir.Path);
string instructionsString = File.ReadAllText(patchDir.Path + Path.DirectorySeparatorChar + "instructions.json");
var instructions = JsonConvert.DeserializeObject <List <FilePatchInstruction> >(instructionsString);
Assert.AreEqual(2, instructions.Count);
Assert.AreEqual("a", instructions[0].Path);
Assert.AreEqual(GetStringHash(DummyDataA), instructions[0].OldHash);
Assert.AreEqual(GetStringHash(DummyDataB), instructions[0].NewHash);
Assert.IsTrue(File.Exists(patchDir.Path + Path.DirectorySeparatorChar + "full" + Path.DirectorySeparatorChar + instructions[0].NewHash));
Assert.AreEqual(instructions[0].HasDelta, File.Exists(patchDir.Path + Path.DirectorySeparatorChar + "delta" + Path.DirectorySeparatorChar + instructions[0].NewHash + "_from_" + instructions[0].OldHash));
Assert.AreEqual("b", instructions[1].Path);
Assert.AreEqual(GetStringHash(DummyDataA), instructions[1].OldHash);
Assert.AreEqual(GetStringHash(DummyDataB), instructions[1].NewHash);
Assert.IsTrue(File.Exists(patchDir.Path + Path.DirectorySeparatorChar + "full" + Path.DirectorySeparatorChar + instructions[1].NewHash));
Assert.AreEqual(instructions[1].HasDelta, File.Exists(patchDir.Path + Path.DirectorySeparatorChar + "delta" + Path.DirectorySeparatorChar + instructions[1].NewHash + "_from_" + instructions[1].OldHash));
}
}
public async Task TestEmpty()
{
using (var oldDir = new TemporaryDirectory())
using (var newDir = new TemporaryDirectory())
using (var patchDir = new TemporaryDirectory())
using (var builder = new DirectoryPatchBuilder(new XdeltaPatchBuilder(XdeltaPatchSystemFactory.Preferred)))
{
await builder.CreatePatchAsync(oldDir.Path, newDir.Path, patchDir.Path);
string instructionsString = File.ReadAllText(patchDir.Path + Path.DirectorySeparatorChar + "instructions.json");
var instructions = JsonConvert.DeserializeObject <List <FilePatchInstruction> >(instructionsString);
Assert.AreEqual(0, instructions.Count);
}
}
public async Task TestRemoved()
{
using (var oldDir = new TemporaryDirectory())
using (var newDir = new TemporaryDirectory())
using (var patchDir = new TemporaryDirectory())
using (var builder = new DirectoryPatchBuilder(new XdeltaPatchBuilder(XdeltaPatchSystemFactory.Preferred)))
{
File.WriteAllText(Path.Combine(oldDir.Path, "a"), DummyDataA);
await builder.CreatePatchAsync(oldDir.Path, newDir.Path, patchDir.Path);
string instructionsString = File.ReadAllText(patchDir.Path + Path.DirectorySeparatorChar + "instructions.json");
var instructions = JsonConvert.DeserializeObject <List <FilePatchInstruction> >(instructionsString);
Assert.AreEqual(1, instructions.Count);
Assert.AreEqual("a", instructions[0].Path);
Assert.AreEqual(GetStringHash(DummyDataA), instructions[0].OldHash);
Assert.AreEqual(null, instructions[0].NewHash);
Assert.AreEqual(false, instructions[0].HasDelta);
}
}
public async Task TestUncompressible()
{
using (var oldDir = new TemporaryDirectory())
using (var newDir = new TemporaryDirectory())
using (var patchDir = new TemporaryDirectory())
using (var builder = new DirectoryPatchBuilder(new XdeltaPatchBuilder(XdeltaPatchSystemFactory.Preferred)))
{
File.WriteAllText(Path.Combine(oldDir.Path, "a"), "0");
File.WriteAllText(Path.Combine(newDir.Path, "a"), "1");
await builder.CreatePatchAsync(oldDir.Path, newDir.Path, patchDir.Path);
string instructionsString = File.ReadAllText(patchDir.Path + Path.DirectorySeparatorChar + "instructions.json");
var instructions = JsonConvert.DeserializeObject <List <FilePatchInstruction> >(instructionsString);
Assert.AreEqual(1, instructions.Count);
Assert.AreEqual("a", instructions[0].Path);
Assert.AreEqual(GetStringHash("0"), instructions[0].OldHash);
Assert.AreEqual(GetStringHash("1"), instructions[0].NewHash);
Assert.AreEqual(false, instructions[0].HasDelta);
Assert.IsTrue(File.Exists(patchDir.Path + Path.DirectorySeparatorChar + "full" + Path.DirectorySeparatorChar + instructions[0].NewHash));
Assert.IsFalse(File.Exists(patchDir.Path + Path.DirectorySeparatorChar + "delta" + Path.DirectorySeparatorChar + instructions[0].NewHash + "_from_" + instructions[0].OldHash));
}
}
