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using System.IO;
using System.Linq;
using System.Text;
using LibGit2Sharp.Tests.TestHelpers;
using Xunit;
using Xunit.Extensions;
namespace LibGit2Sharp.Tests
{
public class BlobFixture : BaseFixture
{
[Fact]
public void CanGetBlobAsText()
{
string path = SandboxBareTestRepo();
using (var repo = new Repository(path))
{
var blob = repo.Lookup<Blob>("a8233120f6ad708f843d861ce2b7228ec4e3dec6");
var text = blob.GetContentText();
Assert.Equal("hey there\n", text);
}
}
[SkippableTheory]
[InlineData("false", "hey there\n")]
[InlineData("input", "hey there\n")]
[InlineData("true", "hey there\r\n")]
public void CanGetBlobAsFilteredText(string autocrlf, string expectedText)
{
SkipIfNotSupported(autocrlf);
var path = SandboxBareTestRepo();
using (var repo = new Repository(path))
{
repo.Config.Set("core.autocrlf", autocrlf);
var blob = repo.Lookup<Blob>("a8233120f6ad708f843d861ce2b7228ec4e3dec6");
var text = blob.GetContentText(new FilteringOptions("foo.txt"));
Assert.Equal(expectedText, text);
}
}
[Theory]
[InlineData("ascii", 4, "31 32 33 34")]
[InlineData("utf-7", 4, "31 32 33 34")]
[InlineData("utf-8", 7, "EF BB BF 31 32 33 34")]
[InlineData("utf-16", 10, "FF FE 31 00 32 00 33 00 34 00")]
[InlineData("unicodeFFFE", 10, "FE FF 00 31 00 32 00 33 00 34")]
[InlineData("utf-32", 20, "FF FE 00 00 31 00 00 00 32 00 00 00 33 00 00 00 34 00 00 00")]
public void CanGetBlobAsTextWithVariousEncodings(string encodingName, int expectedContentBytes, string expectedUtf7Chars)
{
var path = SandboxStandardTestRepo();
using (var repo = new Repository(path))
{
var bomFile = "bom.txt";
var content = "1234";
var encoding = Encoding.GetEncoding(encodingName);
var bomPath = Touch(repo.Info.WorkingDirectory, bomFile, content, encoding);
Assert.Equal(expectedContentBytes, File.ReadAllBytes(bomPath).Length);
repo.Stage(bomFile);
var commit = repo.Commit("bom", Constants.Signature, Constants.Signature);
var blob = (Blob)commit.Tree[bomFile].Target;
Assert.Equal(expectedContentBytes, blob.Size);
using (var stream = blob.GetContentStream())
{
Assert.Equal(expectedContentBytes, stream.Length);
}
var textDetected = blob.GetContentText();
Assert.Equal(content, textDetected);
var text = blob.GetContentText(encoding);
Assert.Equal(content, text);
var utf7Chars = blob.GetContentText(Encoding.UTF7).Select(c => ((int)c).ToString("X2")).ToArray();
Assert.Equal(expectedUtf7Chars, string.Join(" ", utf7Chars));
}
}
[Fact]
public void CanGetBlobSize()
{
string path = SandboxBareTestRepo();
using (var repo = new Repository(path))
{
var blob = repo.Lookup<Blob>("a8233120f6ad708f843d861ce2b7228ec4e3dec6");
Assert.Equal(10, blob.Size);
}
}
[Fact]
public void CanLookUpBlob()
{
string path = SandboxBareTestRepo();
using (var repo = new Repository(path))
{
var blob = repo.Lookup<Blob>("a8233120f6ad708f843d861ce2b7228ec4e3dec6");
Assert.NotNull(blob);
}
}
[Fact]
public void CanReadBlobStream()
{
string path = SandboxBareTestRepo();
using (var repo = new Repository(path))
{
var blob = repo.Lookup<Blob>("a8233120f6ad708f843d861ce2b7228ec4e3dec6");
var contentStream = blob.GetContentStream();
Assert.Equal(blob.Size, contentStream.Length);
using (var tr = new StreamReader(contentStream, Encoding.UTF8))
{
string content = tr.ReadToEnd();
Assert.Equal("hey there\n", content);
}
}
}
[SkippableTheory]
[InlineData("false", "hey there\n")]
[InlineData("input", "hey there\n")]
[InlineData("true", "hey there\r\n")]
public void CanReadBlobFilteredStream(string autocrlf, string expectedContent)
{
SkipIfNotSupported(autocrlf);
var path = SandboxBareTestRepo();
using (var repo = new Repository(path))
{
repo.Config.Set("core.autocrlf", autocrlf);
var blob = repo.Lookup<Blob>("a8233120f6ad708f843d861ce2b7228ec4e3dec6");
var contentStream = blob.GetContentStream(new FilteringOptions("foo.txt"));
Assert.Equal(expectedContent.Length, contentStream.Length);
using (var tr = new StreamReader(contentStream, Encoding.UTF8))
{
string content = tr.ReadToEnd();
Assert.Equal(expectedContent, content);
}
}
}
[Fact]
public void CanReadBlobFilteredStreamOfUnmodifiedBinary()
{
var binaryContent = new byte[] { 0, 1, 2, 3, 4, 5 };
string path = SandboxBareTestRepo();
using (var repo = new Repository(path))
{
using (var stream = new MemoryStream(binaryContent))
{
Blob blob = repo.ObjectDatabase.CreateBlob(stream);
using (var filtered = blob.GetContentStream(new FilteringOptions("foo.txt")))
{
Assert.Equal(blob.Size, filtered.Length);
Assert.True(StreamEquals(stream, filtered));
}
}
}
}
[Fact]
public void CanStageAFileGeneratedFromABlobContentStream()
{
string repoPath = InitNewRepository();
using (var repo = new Repository(repoPath))
{
for (int i = 0; i < 5; i++)
{
var sb = new StringBuilder();
for (int j = 0; j < 2000; j++)
{
sb.Append(((i + 1)*(j + 1)).ToString("X8"));
}
File.AppendAllText(Path.Combine(repo.Info.WorkingDirectory, "small.txt"), sb.ToString());
}
repo.Stage("small.txt");
IndexEntry entry = repo.Index["small.txt"];
Assert.Equal("baae1fb3760a73481ced1fa03dc15614142c19ef", entry.Id.Sha);
var blob = repo.Lookup<Blob>(entry.Id.Sha);
using (Stream stream = blob.GetContentStream())
using (Stream file = File.OpenWrite(Path.Combine(repo.Info.WorkingDirectory, "small.fromblob.txt")))
{
CopyStream(stream, file);
}
repo.Stage("small.fromblob.txt");
IndexEntry newentry = repo.Index["small.fromblob.txt"];
Assert.Equal("baae1fb3760a73481ced1fa03dc15614142c19ef", newentry.Id.Sha);
}
}
[Fact]
public void CanTellIfTheBlobContentLooksLikeBinary()
{
string path = SandboxBareTestRepo();
using (var repo = new Repository(path))
{
var blob = repo.Lookup<Blob>("a8233120f6ad708f843d861ce2b7228ec4e3dec6");
Assert.Equal(false, blob.IsBinary);
}
}
private static void SkipIfNotSupported(string autocrlf)
{
InconclusiveIf(() => autocrlf == "true" && Constants.IsRunningOnUnix, "Non-Windows does not support core.autocrlf = true");
}
}
}
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