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DiffTreeToTreeFixture.cs
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using System;
using System.IO;
using System.Linq;
using System.Text;
using LibGit2Sharp.Tests.TestHelpers;
using Xunit;
namespace LibGit2Sharp.Tests
{
public class DiffTreeToTreeFixture : BaseFixture
{
private static readonly string subBranchFilePath = string.Join("/", "1", "branch_file.txt");
[Fact]
public void ComparingATreeAgainstItselfReturnsNoDifference()
{
var path = SandboxStandardTestRepoGitDir();
using (var repo = new Repository(path))
{
Tree tree = repo.Head.Tip.Tree;
using (var changes = repo.Diff.Compare<TreeChanges>(tree, tree))
{
Assert.Empty(changes);
}
using (var patch = repo.Diff.Compare<Patch>(tree, tree))
{
Assert.Empty(patch);
Assert.Equal(string.Empty, patch);
}
}
}
[Fact]
public void RetrievingANonExistentFileChangeReturnsNull()
{
var path = SandboxStandardTestRepoGitDir();
using (var repo = new Repository(path))
{
Tree tree = repo.Head.Tip.Tree;
using (var changes = repo.Diff.Compare<TreeChanges>(tree, tree))
{
Assert.Equal(0, changes.Count(c => c.Path == "batman"));
}
}
}
/*
* $ git diff --stat HEAD^..HEAD
* 1.txt | 1 +
* 1 file changed, 1 insertion(+)
*/
[Fact]
public void CanCompareACommitTreeAgainstItsParent()
{
var path = SandboxStandardTestRepoGitDir();
using (var repo = new Repository(path))
{
Tree commitTree = repo.Head.Tip.Tree;
Tree parentCommitTree = repo.Head.Tip.Parents.Single().Tree;
using (var changes = repo.Diff.Compare<TreeChanges>(parentCommitTree, commitTree))
{
Assert.Single(changes);
Assert.Single(changes.Added);
TreeEntryChanges treeEntryChanges = changes.Single(c => c.Path == "1.txt");
Assert.Equal("1.txt", treeEntryChanges.Path);
Assert.Equal(ChangeKind.Added, treeEntryChanges.Status);
Assert.Equal(treeEntryChanges.Path, changes.Added.Single().Path);
Assert.Equal(Mode.Nonexistent, treeEntryChanges.OldMode);
}
using (var patch = repo.Diff.Compare<Patch>(parentCommitTree, commitTree))
{
Assert.False(patch["1.txt"].IsBinaryComparison);
}
}
}
static void CreateBinaryFile(string path)
{
var content = new byte[] { 0x1, 0x0, 0x2, 0x0 };
using (var binfile = File.Create(path))
{
for (int i = 0; i < 1000; i++)
{
binfile.Write(content, 0, content.Length);
}
}
}
[Fact]
public void CanDetectABinaryChange()
{
using (var repo = new Repository(SandboxStandardTestRepo()))
{
const string filename = "binfile.foo";
var filepath = Path.Combine(repo.Info.WorkingDirectory, filename);
CreateBinaryFile(filepath);
Commands.Stage(repo, filename);
var commit = repo.Commit("Add binary file", Constants.Signature, Constants.Signature);
File.AppendAllText(filepath, "abcdef");
using (var patch = repo.Diff.Compare<Patch>(commit.Tree, DiffTargets.WorkingDirectory, new[] { filename }))
Assert.True(patch[filename].IsBinaryComparison);
Commands.Stage(repo, filename);
var commit2 = repo.Commit("Update binary file", Constants.Signature, Constants.Signature);
using (var patch2 = repo.Diff.Compare<Patch>(commit.Tree, commit2.Tree, new[] { filename }))
Assert.True(patch2[filename].IsBinaryComparison);
}
}
[Fact]
public void CanDetectABinaryDeletion()
{
using (var repo = new Repository(SandboxStandardTestRepo()))
{
const string filename = "binfile.foo";
var filepath = Path.Combine(repo.Info.WorkingDirectory, filename);
CreateBinaryFile(filepath);
Commands.Stage(repo, filename);
var commit = repo.Commit("Add binary file", Constants.Signature, Constants.Signature);
File.Delete(filepath);
using (var patch = repo.Diff.Compare<Patch>(commit.Tree, DiffTargets.WorkingDirectory, new[] { filename }))
Assert.True(patch[filename].IsBinaryComparison);
Commands.Remove(repo, filename);
var commit2 = repo.Commit("Delete binary file", Constants.Signature, Constants.Signature);
using (var patch2 = repo.Diff.Compare<Patch>(commit.Tree, commit2.Tree, new[] { filename }))
Assert.True(patch2[filename].IsBinaryComparison);
}
}
/*
* $ git diff 9fd738e..HEAD -- "1" "2/"
* diff --git a/1/branch_file.txt b/1/branch_file.txt
* new file mode 100755
* index 0000000..45b983b
* --- /dev/null
* +++ b/1/branch_file.txt
* @@ -0,0 +1 @@
* +hi
*/
[Fact]
public void CanCompareASubsetofTheTreeAgainstOneOfItsAncestor()
{
var path = SandboxStandardTestRepoGitDir();
using (var repo = new Repository(path))
{
Tree tree = repo.Head.Tip.Tree;
Tree ancestor = repo.Lookup<Commit>("9fd738e").Tree;
using (var changes = repo.Diff.Compare<TreeChanges>(ancestor, tree, new[] { "1" }))
{
Assert.NotNull(changes);
Assert.Single(changes);
Assert.Equal(subBranchFilePath, changes.Added.Single().Path);
}
}
}
/*
* $ git diff --stat origin/test..HEAD
* 1.txt | 1 +
* 1/branch_file.txt | 1 +
* README | 1 +
* branch_file.txt | 1 +
* deleted_staged_file.txt | 1 +
* deleted_unstaged_file.txt | 1 +
* modified_staged_file.txt | 1 +
* modified_unstaged_file.txt | 1 +
* new.txt | 1 +
* readme.txt | 2 --
* 10 files changed, 9 insertions(+), 2 deletions(-)
*/
[Fact]
public void CanCompareACommitTreeAgainstATreeWithNoCommonAncestor()
{
var path = SandboxStandardTestRepoGitDir();
using (var repo = new Repository(path))
{
Tree commitTree = repo.Head.Tip.Tree;
Tree commitTreeWithDifferentAncestor = repo.Branches["refs/remotes/origin/test"].Tip.Tree;
using (var changes = repo.Diff.Compare<TreeChanges>(commitTreeWithDifferentAncestor, commitTree))
{
Assert.Equal(10, changes.Count());
Assert.Equal(9, changes.Added.Count());
Assert.Single(changes.Deleted);
Assert.Equal("readme.txt", changes.Deleted.Single().Path);
Assert.Equal(new[] { "1.txt", subBranchFilePath, "README", "branch_file.txt", "deleted_staged_file.txt", "deleted_unstaged_file.txt", "modified_staged_file.txt", "modified_unstaged_file.txt", "new.txt" },
changes.Added.Select(x => x.Path).OrderBy(p => p, StringComparer.Ordinal).ToArray());
}
using (var patch = repo.Diff.Compare<Patch>(commitTreeWithDifferentAncestor, commitTree))
{
Assert.Equal(9, patch.LinesAdded);
Assert.Equal(2, patch.LinesDeleted);
Assert.Equal(2, patch["readme.txt"].LinesDeleted);
}
}
}
[Fact]
public void CanCompareATreeAgainstAnotherTreeWithLaxExplicitPathsValidationAndNonExistentPath()
{
var path = SandboxStandardTestRepoGitDir();
using (var repo = new Repository(path))
{
Tree commitTree = repo.Head.Tip.Tree;
Tree commitTreeWithDifferentAncestor = repo.Branches["refs/remotes/origin/test"].Tip.Tree;
using (var changes = repo.Diff.Compare<TreeChanges>(commitTreeWithDifferentAncestor, commitTree,
new[] { "if-I-exist-this-test-is-really-unlucky.txt" }, new ExplicitPathsOptions { ShouldFailOnUnmatchedPath = false }))
{
Assert.Empty(changes);
}
using (var changes = repo.Diff.Compare<TreeChanges>(commitTreeWithDifferentAncestor, commitTree,
new[] { "if-I-exist-this-test-is-really-unlucky.txt" }))
{
Assert.Empty(changes);
}
}
}
[Fact]
public void ComparingATreeAgainstAnotherTreeWithStrictExplicitPathsValidationThrows()
{
var path = SandboxStandardTestRepoGitDir();
using (var repo = new Repository(path))
{
Tree commitTree = repo.Head.Tip.Tree;
Tree commitTreeWithDifferentAncestor = repo.Branches["refs/remotes/origin/test"].Tip.Tree;
Assert.Throws<UnmatchedPathException>(() =>
repo.Diff.Compare<TreeChanges>(commitTreeWithDifferentAncestor, commitTree,
new[] { "if-I-exist-this-test-is-really-unlucky.txt" }, new ExplicitPathsOptions()));
}
}
/*
* $ git diff -M f8d44d7..4be51d6
* diff --git a/my-name-does-not-feel-right.txt b/super-file.txt
* similarity index 82%
* rename from my-name-does-not-feel-right.txt
* rename to super-file.txt
* index e8953ab..16bdf1d 100644
* --- a/my-name-does-not-feel-right.txt
* +++ b/super-file.txt
* @@ -2,3 +2,4 @@ That's a terrible name!
* I don't like it.
* People look down at me and laugh. :-(
* Really!!!!
* +Yeah! Better!
*
* $ git diff -M --shortstat f8d44d7..4be51d6
* 1 file changed, 1 insertion(+)
*/
[Fact]
public void DetectsTheRenamingOfAModifiedFileByDefault()
{
var path = SandboxStandardTestRepoGitDir();
using (var repo = new Repository(path))
{
Tree rootCommitTree = repo.Lookup<Commit>("f8d44d7").Tree;
Tree commitTreeWithRenamedFile = repo.Lookup<Commit>("4be51d6").Tree;
using (var changes = repo.Diff.Compare<TreeChanges>(rootCommitTree, commitTreeWithRenamedFile))
{
Assert.Single(changes);
Assert.Equal("my-name-does-not-feel-right.txt", changes.Single(c => c.Path == "super-file.txt").OldPath);
Assert.Single(changes.Renamed);
}
}
}
[Fact]
public void DetectsTheExactRenamingOfFilesByDefault()
{
SelfCleaningDirectory scd = BuildSelfCleaningDirectory();
var path = Repository.Init(scd.DirectoryPath);
using (var repo = new Repository(path))
{
const string originalPath = "original.txt";
const string renamedPath = "renamed.txt";
Touch(repo.Info.WorkingDirectory, originalPath, "a\nb\nc\nd\n");
Commands.Stage(repo, originalPath);
Commit old = repo.Commit("Initial", Constants.Signature, Constants.Signature);
Commands.Move(repo, originalPath, renamedPath);
Commit @new = repo.Commit("Updated", Constants.Signature, Constants.Signature);
using (var changes = repo.Diff.Compare<TreeChanges>(old.Tree, @new.Tree))
{
Assert.Single(changes);
Assert.Single(changes.Renamed);
Assert.Equal(originalPath, changes.Renamed.Single().OldPath);
Assert.Equal(renamedPath, changes.Renamed.Single().Path);
}
}
}
[Fact(Skip = "Not supported by libgit2 as yet")]
public void RenameDetectionObeysConfigurationSetting()
{
// TODO: set the repo's diff.renames setting, and pass a structure that adjusts thresholds
}
[Fact]
public void RenameThresholdsAreObeyed()
{
SelfCleaningDirectory scd = BuildSelfCleaningDirectory();
var path = Repository.Init(scd.DirectoryPath);
using (var repo = new Repository(path))
{
const string originalPath = "original.txt";
const string renamedPath = "renamed.txt";
// 4 lines
Touch(repo.Info.WorkingDirectory, originalPath, "a\nb\nc\nd\n");
Commands.Stage(repo, originalPath);
Commit old = repo.Commit("Initial", Constants.Signature, Constants.Signature);
// 8 lines, 50% are from original file
Touch(repo.Info.WorkingDirectory, originalPath, "a\nb\nc\nd\ne\nf\ng\nh\n");
Commands.Stage(repo, originalPath);
Commands.Move(repo, originalPath, renamedPath);
Commit @new = repo.Commit("Updated", Constants.Signature, Constants.Signature);
var compareOptions = new CompareOptions
{
Similarity = new SimilarityOptions
{
RenameDetectionMode = RenameDetectionMode.Renames,
},
};
compareOptions.Similarity.RenameThreshold = 30;
using (var changes = repo.Diff.Compare<TreeChanges>(old.Tree, @new.Tree, compareOptions: compareOptions))
Assert.True(changes.All(x => x.Status == ChangeKind.Renamed));
compareOptions.Similarity.RenameThreshold = 90;
using (var changes = repo.Diff.Compare<TreeChanges>(old.Tree, @new.Tree, compareOptions: compareOptions))
Assert.DoesNotContain(changes, x => x.Status == ChangeKind.Renamed);
}
}
[Fact]
public void ExactModeDetectsExactRenames()
{
SelfCleaningDirectory scd = BuildSelfCleaningDirectory();
var path = Repository.Init(scd.DirectoryPath);
using (var repo = new Repository(path))
{
const string originalPath = "original.txt";
const string renamedPath = "renamed.txt";
Touch(repo.Info.WorkingDirectory, originalPath, "a\nb\nc\nd\n");
Commands.Stage(repo, originalPath);
Commit old = repo.Commit("Initial", Constants.Signature, Constants.Signature);
Commands.Move(repo, originalPath, renamedPath);
Commit @new = repo.Commit("Updated", Constants.Signature, Constants.Signature);
using (var changes = repo.Diff.Compare<TreeChanges>(old.Tree, @new.Tree,
compareOptions: new CompareOptions
{
Similarity = SimilarityOptions.Exact,
}))
{
Assert.Single(changes);
Assert.Single(changes.Renamed);
Assert.Equal(originalPath, changes.Renamed.Single().OldPath);
Assert.Equal(renamedPath, changes.Renamed.Single().Path);
}
}
}
[Fact]
public void ExactModeDetectsExactCopies()
{
SelfCleaningDirectory scd = BuildSelfCleaningDirectory();
var path = Repository.Init(scd.DirectoryPath);
using (var repo = new Repository(path))
{
const string originalPath = "original.txt";
const string copiedPath = "copied.txt";
var originalFullPath = Path.Combine(repo.Info.WorkingDirectory, originalPath);
var copiedFullPath = Path.Combine(repo.Info.WorkingDirectory, copiedPath);
Touch(repo.Info.WorkingDirectory, originalPath, "a\nb\nc\nd\n");
Commands.Stage(repo, originalPath);
Commit old = repo.Commit("Initial", Constants.Signature, Constants.Signature);
File.Copy(originalFullPath, copiedFullPath);
Commands.Stage(repo, copiedPath);
Commit @new = repo.Commit("Updated", Constants.Signature, Constants.Signature);
using (var changes = repo.Diff.Compare<TreeChanges>(old.Tree, @new.Tree,
compareOptions: new CompareOptions
{
Similarity = SimilarityOptions.Exact,
}))
{
Assert.Single(changes);
Assert.Single(changes.Copied);
}
}
}
[Fact]
public void ExactModeDoesntDetectRenamesWithEdits()
{
SelfCleaningDirectory scd = BuildSelfCleaningDirectory();
var path = Repository.Init(scd.DirectoryPath);
using (var repo = new Repository(path))
{
const string originalPath = "original.txt";
const string renamedPath = "renamed.txt";
Touch(repo.Info.WorkingDirectory, originalPath, "a\nb\nc\nd\n");
Commands.Stage(repo, originalPath);
Commit old = repo.Commit("Initial", Constants.Signature, Constants.Signature);
Commands.Move(repo, originalPath, renamedPath);
File.AppendAllText(Path.Combine(repo.Info.WorkingDirectory, renamedPath), "e\nf\n");
Commands.Stage(repo, renamedPath);
Commit @new = repo.Commit("Updated", Constants.Signature, Constants.Signature);
using (var changes = repo.Diff.Compare<TreeChanges>(old.Tree, @new.Tree,
compareOptions: new CompareOptions
{
Similarity = SimilarityOptions.Exact,
}))
{
Assert.Equal(2, changes.Count());
Assert.Empty(changes.Renamed);
Assert.Single(changes.Added);
Assert.Single(changes.Deleted);
}
}
}
[Fact]
public void CanIncludeUnmodifiedEntriesWhenDetectingTheExactRenamingOfFilesWhenEnabled()
{
SelfCleaningDirectory scd = BuildSelfCleaningDirectory();
var path = Repository.Init(scd.DirectoryPath);
using (var repo = new Repository(path))
{
const string originalPath = "original.txt";
const string copiedPath = "copied.txt";
string originalFullPath = Path.Combine(repo.Info.WorkingDirectory, originalPath);
string copiedFullPath = Path.Combine(repo.Info.WorkingDirectory, copiedPath);
Touch(repo.Info.WorkingDirectory, originalPath, "a\nb\nc\nd\n");
Commands.Stage(repo, originalPath);
Commit old = repo.Commit("Initial", Constants.Signature, Constants.Signature);
File.Copy(originalFullPath, copiedFullPath);
Commands.Stage(repo, copiedPath);
Commit @new = repo.Commit("Updated", Constants.Signature, Constants.Signature);
using (var changes = repo.Diff.Compare<TreeChanges>(old.Tree, @new.Tree,
compareOptions:
new CompareOptions
{
Similarity = SimilarityOptions.CopiesHarder,
IncludeUnmodified = true,
}))
{
Assert.Equal(2, changes.Count());
Assert.Single(changes.Unmodified);
Assert.Single(changes.Copied);
Assert.Equal(originalPath, changes.Copied.Single().OldPath);
Assert.Equal(copiedPath, changes.Copied.Single().Path);
}
}
}
[Fact]
public void CanNotDetectTheExactRenamingFilesWhenNotEnabled()
{
SelfCleaningDirectory scd = BuildSelfCleaningDirectory();
var path = Repository.Init(scd.DirectoryPath);
using (var repo = new Repository(path))
{
const string originalPath = "original.txt";
const string renamedPath = "renamed.txt";
Touch(repo.Info.WorkingDirectory, originalPath, "a\nb\nc\nd\n");
Commands.Stage(repo, originalPath);
Commit old = repo.Commit("Initial", Constants.Signature, Constants.Signature);
Commands.Move(repo, originalPath, renamedPath);
Commit @new = repo.Commit("Updated", Constants.Signature, Constants.Signature);
using (var changes = repo.Diff.Compare<TreeChanges>(old.Tree, @new.Tree,
compareOptions:
new CompareOptions
{
Similarity = SimilarityOptions.None,
}))
{
Assert.Equal(2, changes.Count());
Assert.Empty(changes.Renamed);
}
}
}
[Fact]
public void CanDetectTheExactCopyingOfNonModifiedFilesWhenEnabled()
{
SelfCleaningDirectory scd = BuildSelfCleaningDirectory();
var path = Repository.Init(scd.DirectoryPath);
using (var repo = new Repository(path))
{
const string originalPath = "original.txt";
const string copiedPath = "copied.txt";
string originalFullPath = Path.Combine(repo.Info.WorkingDirectory, originalPath);
string copiedFullPath = Path.Combine(repo.Info.WorkingDirectory, copiedPath);
Touch(repo.Info.WorkingDirectory, originalPath, "a\nb\nc\nd\n");
Commands.Stage(repo, originalPath);
Commit old = repo.Commit("Initial", Constants.Signature, Constants.Signature);
File.Copy(originalFullPath, copiedFullPath);
Commands.Stage(repo, copiedPath);
Commit @new = repo.Commit("Updated", Constants.Signature, Constants.Signature);
using (var changes = repo.Diff.Compare<TreeChanges>(old.Tree, @new.Tree,
compareOptions:
new CompareOptions
{
Similarity = SimilarityOptions.CopiesHarder,
}))
{
Assert.Single(changes);
Assert.Single(changes.Copied);
Assert.Equal(originalPath, changes.Copied.Single().OldPath);
Assert.Equal(copiedPath, changes.Copied.Single().Path);
}
}
}
[Fact]
public void CanNotDetectTheExactCopyingOfNonModifiedFilesWhenNotEnabled()
{
SelfCleaningDirectory scd = BuildSelfCleaningDirectory();
var path = Repository.Init(scd.DirectoryPath);
using (var repo = new Repository(path))
{
const string originalPath = "original.txt";
const string copiedPath = "copied.txt";
string originalFullPath = Path.Combine(repo.Info.WorkingDirectory, originalPath);
string copiedFullPath = Path.Combine(repo.Info.WorkingDirectory, copiedPath);
Touch(repo.Info.WorkingDirectory, originalPath, "a\nb\nc\nd\n");
Commands.Stage(repo, originalPath);
Commit old = repo.Commit("Initial", Constants.Signature, Constants.Signature);
File.Copy(originalFullPath, copiedFullPath);
Commands.Stage(repo, copiedPath);
Commit @new = repo.Commit("Updated", Constants.Signature, Constants.Signature);
using (var changes = repo.Diff.Compare<TreeChanges>(old.Tree, @new.Tree))
{
Assert.Single(changes);
Assert.Empty(changes.Copied);
}
}
}
[Fact]
public void CanDetectTheExactCopyingOfModifiedFilesWhenEnabled()
{
SelfCleaningDirectory scd = BuildSelfCleaningDirectory();
var path = Repository.Init(scd.DirectoryPath);
using (var repo = new Repository(path))
{
const string originalPath = "original.txt";
const string copiedPath = "copied.txt";
string originalFullPath = Path.Combine(repo.Info.WorkingDirectory, originalPath);
string copiedFullPath = Path.Combine(repo.Info.WorkingDirectory, copiedPath);
Touch(repo.Info.WorkingDirectory, originalPath, "a\nb\nc\nd\n");
Commands.Stage(repo, originalPath);
Commit old = repo.Commit("Initial", Constants.Signature, Constants.Signature);
File.Copy(originalFullPath, copiedFullPath);
Touch(repo.Info.WorkingDirectory, originalPath, "e\n");
Commands.Stage(repo, originalPath);
Commands.Stage(repo, copiedPath);
Commit @new = repo.Commit("Updated", Constants.Signature, Constants.Signature);
using (var changes = repo.Diff.Compare<TreeChanges>(old.Tree, @new.Tree,
compareOptions:
new CompareOptions
{
Similarity = SimilarityOptions.Copies,
}))
{
Assert.Equal(2, changes.Count());
Assert.Single(changes.Copied);
Assert.Equal(originalPath, changes.Copied.Single().OldPath);
Assert.Equal(copiedPath, changes.Copied.Single().Path);
}
}
}
[Fact]
public void CanNotDetectTheExactCopyingOfModifiedFilesWhenNotEnabled()
{
SelfCleaningDirectory scd = BuildSelfCleaningDirectory();
var path = Repository.Init(scd.DirectoryPath);
using (var repo = new Repository(path))
{
const string originalPath = "original.txt";
const string copiedPath = "copied.txt";
string originalFullPath = Path.Combine(repo.Info.WorkingDirectory, originalPath);
string copiedFullPath = Path.Combine(repo.Info.WorkingDirectory, copiedPath);
Touch(repo.Info.WorkingDirectory, originalPath, "a\nb\nc\nd\n");
Commands.Stage(repo, originalPath);
Commit old = repo.Commit("Initial", Constants.Signature, Constants.Signature);
File.Copy(originalFullPath, copiedFullPath);
File.AppendAllText(originalFullPath, "e\n");
Commands.Stage(repo, originalPath);
Commands.Stage(repo, copiedPath);
Commit @new = repo.Commit("Updated", Constants.Signature, Constants.Signature);
using (var changes = repo.Diff.Compare<TreeChanges>(old.Tree, @new.Tree))
{
Assert.Equal(2, changes.Count());
Assert.Empty(changes.Copied);
}
}
}
[Fact]
public void CanIncludeUnmodifiedEntriesWhenEnabled()
{
SelfCleaningDirectory scd = BuildSelfCleaningDirectory();
var path = Repository.Init(scd.DirectoryPath);
using (var repo = new Repository(path))
{
Touch(repo.Info.WorkingDirectory, "a.txt", "abc\ndef\n");
Touch(repo.Info.WorkingDirectory, "b.txt", "abc\ndef\n");
Commands.Stage(repo, new[] { "a.txt", "b.txt" });
Commit old = repo.Commit("Initial", Constants.Signature, Constants.Signature);
File.AppendAllText(Path.Combine(repo.Info.WorkingDirectory, "b.txt"), "ghi\njkl\n");
Commands.Stage(repo, "b.txt");
Commit @new = repo.Commit("Updated", Constants.Signature, Constants.Signature);
using (var changes = repo.Diff.Compare<TreeChanges>(old.Tree, @new.Tree,
compareOptions: new CompareOptions { IncludeUnmodified = true }))
{
Assert.Equal(2, changes.Count());
Assert.Single(changes.Unmodified);
Assert.Single(changes.Modified);
}
}
}
[Fact]
public void CanDetectTheExactRenamingExactCopyingOfNonModifiedAndModifiedFilesWhenEnabled()
{
SelfCleaningDirectory scd = BuildSelfCleaningDirectory();
var path = Repository.Init(scd.DirectoryPath);
using (var repo = new Repository(path))
{
const string originalPath = "original.txt";
const string renamedPath = "renamed.txt";
const string originalPath2 = "original2.txt";
const string copiedPath1 = "copied.txt";
const string originalPath3 = "original3.txt";
const string copiedPath2 = "copied2.txt";
Touch(repo.Info.WorkingDirectory, originalPath, "a\nb\nc\nd\n");
Touch(repo.Info.WorkingDirectory, originalPath2, "1\n2\n3\n4\n");
Touch(repo.Info.WorkingDirectory, originalPath3, "5\n6\n7\n8\n");
Commands.Stage(repo, originalPath);
Commands.Stage(repo, originalPath2);
Commands.Stage(repo, originalPath3);
Commit old = repo.Commit("Initial", Constants.Signature, Constants.Signature);
var originalFullPath2 = Path.Combine(repo.Info.WorkingDirectory, originalPath2);
var originalFullPath3 = Path.Combine(repo.Info.WorkingDirectory, originalPath3);
var copiedFullPath1 = Path.Combine(repo.Info.WorkingDirectory, copiedPath1);
var copiedFullPath2 = Path.Combine(repo.Info.WorkingDirectory, copiedPath2);
File.Copy(originalFullPath2, copiedFullPath1);
File.Copy(originalFullPath3, copiedFullPath2);
File.AppendAllText(originalFullPath3, "9\n");
Commands.Stage(repo, originalPath3);
Commands.Stage(repo, copiedPath1);
Commands.Stage(repo, copiedPath2);
Commands.Move(repo, originalPath, renamedPath);
Commit @new = repo.Commit("Updated", Constants.Signature, Constants.Signature);
using (var changes = repo.Diff.Compare<TreeChanges>(old.Tree, @new.Tree,
compareOptions:
new CompareOptions
{
Similarity = SimilarityOptions.CopiesHarder,
}))
{
Assert.Equal(4, changes.Count());
Assert.Single(changes.Modified);
Assert.Single(changes.Renamed);
Assert.Equal(originalPath, changes.Renamed.Single().OldPath);
Assert.Equal(renamedPath, changes.Renamed.Single().Path);
Assert.Equal(2, changes.Copied.Count());
Assert.Equal(originalPath2, changes.Copied.ElementAt(0).OldPath);
Assert.Equal(copiedPath1, changes.Copied.ElementAt(0).Path);
Assert.Equal(originalPath3, changes.Copied.ElementAt(1).OldPath);
Assert.Equal(copiedPath2, changes.Copied.ElementAt(1).Path);
}
}
}
/*
* $ git diff f8d44d7..ec9e401
* diff --git a/numbers.txt b/numbers.txt
* index 7909961..4625a36 100644
* --- a/numbers.txt
* +++ b/numbers.txt
* @@ -8,8 +8,9 @@
* 8
* 9
* 10
* -12
* +11
* 12
* 13
* 14
* 15
* +16
* \ No newline at end of file
*
* $ git diff --shortstat f8d44d7..ec9e401
* 1 file changed, 2 insertions(+), 1 deletion(-)
*/
[Theory]
[InlineData(0, 175)]
[InlineData(1, 191)]
[InlineData(2, 184)]
[InlineData(3, 187)]
[InlineData(4, 193)]
public void CanCompareTwoVersionsOfAFileWithATrailingNewlineDeletion(int contextLines, int expectedPatchLength)
{
var path = SandboxStandardTestRepoGitDir();
using (var repo = new Repository(path))
{
Tree rootCommitTree = repo.Lookup<Commit>("f8d44d7").Tree;
Tree commitTreeWithUpdatedFile = repo.Lookup<Commit>("ec9e401").Tree;
using (var changes = repo.Diff.Compare<TreeChanges>(rootCommitTree, commitTreeWithUpdatedFile))
{
Assert.Single(changes);
Assert.Single(changes.Modified);
}
using (var patch = repo.Diff.Compare<Patch>(rootCommitTree, commitTreeWithUpdatedFile,
compareOptions: new CompareOptions { ContextLines = contextLines }))
{
Assert.Equal(expectedPatchLength, patch.Content.Length);
PatchEntryChanges entryChanges = patch["numbers.txt"];
Assert.Equal(2, entryChanges.LinesAdded);
Assert.Equal(1, entryChanges.LinesDeleted);
Assert.Equal(expectedPatchLength, entryChanges.Patch.Length);
Assert.Equal("numbers.txt", entryChanges.Path);
}
}
}
/*
* $ git diff --inter-hunk-context=2 f8d44d7..7252fe2
* diff --git a/my-name-does-not-feel-right.txt b/my-name-does-not-feel-right.txt
* deleted file mode 100644
* index e8953ab..0000000
* --- a/my-name-does-not-feel-right.txt
* +++ /dev/null
* @@ -1,4 +0,0 @@
* -That's a terrible name!
* -I don't like it.
* -People look down at me and laugh. :-(
* -Really!!!!
* diff --git a/numbers.txt b/numbers.txt
* index 7909961..4e935b7 100644
* --- a/numbers.txt
* +++ b/numbers.txt
* @@ -1,4 +1,5 @@
* 1
* +2
* 3
* 4
* 5
* @@ -8,8 +9,9 @@
* 8
* 9
* 10
* -12
* +11
* 12
* 13
* 14
* 15
* +16
* diff --git a/super-file.txt b/super-file.txt
* new file mode 100644
* index 0000000..16bdf1d
* --- /dev/null
* +++ b/super-file.txt
* @@ -0,0 +1,5 @@
* +That's a terrible name!
* +I don't like it.
* +People look down at me and laugh. :-(
* +Really!!!!
* +Yeah! Better!
*
* $ git diff --stat f8d44d7..7252fe2
* my-name-does-not-feel-right.txt | 4 ----
* numbers.txt | 4 +++-
* super-file.txt | 5 +++++
* 3 files changed, 8 insertions(+), 5 deletions(-)
*/
[Theory]
[InlineData(0, 3)]
[InlineData(0, 4)]
[InlineData(1, 1)]
[InlineData(1, 2)]
[InlineData(2, 4)]
[InlineData(2, 5)]
[InlineData(3, 2)]
[InlineData(3, 3)]
[InlineData(4, 0)]
[InlineData(4, 1)]
public void CanCompareTwoVersionsOfAFileWithADiffOfTwoHunks(int contextLines, int interhunkLines)
{
var compareOptions = new CompareOptions
{
ContextLines = contextLines,
InterhunkLines = interhunkLines,
Similarity = SimilarityOptions.None,
};
var path = SandboxStandardTestRepoGitDir();
using (var repo = new Repository(path))
{
Tree rootCommitTree = repo.Lookup<Commit>("f8d44d7").Tree;
Tree mergedCommitTree = repo.Lookup<Commit>("7252fe2").Tree;
using (var changes = repo.Diff.Compare<TreeChanges>(rootCommitTree, mergedCommitTree, compareOptions: compareOptions))
{
Assert.Equal(3, changes.Count());
Assert.Single(changes.Modified);
Assert.Single(changes.Deleted);
Assert.Single(changes.Added);
Assert.Equal(Mode.Nonexistent, changes.Single(c => c.Path == "my-name-does-not-feel-right.txt").Mode);
}
using (var patch = repo.Diff.Compare<Patch>(rootCommitTree, mergedCommitTree, compareOptions: compareOptions))
{
PatchEntryChanges entryChanges = patch["numbers.txt"];
Assert.Equal(3, entryChanges.LinesAdded);
Assert.Equal(1, entryChanges.LinesDeleted);
Assert.Equal(Expected("f8d44d7...7252fe2/numbers.txt-{0}-{1}.diff", contextLines, interhunkLines),
entryChanges.Patch);
Assert.Equal(Expected("f8d44d7...7252fe2/full-{0}-{1}.diff", contextLines, interhunkLines),
patch);
Assert.Equal("numbers.txt", entryChanges.Path);
}
}
}
private void CanHandleTwoTreeEntryChangesWithTheSamePath(SimilarityOptions similarity, Action<string, TreeChanges> verifier)
{
string repoPath = InitNewRepository();
using (var repo = new Repository(repoPath))
{
Blob mainContent = OdbHelper.CreateBlob(repo, "awesome content\n" + new string('b', 4096));
Blob linkContent = OdbHelper.CreateBlob(repo, "../../objc/Nu.h");
string path = Path.Combine("include", "Nu", "Nu.h");
var tdOld = new TreeDefinition()
.Add(path, linkContent, Mode.SymbolicLink)
.Add("objc/Nu.h", mainContent, Mode.NonExecutableFile);
Tree treeOld = repo.ObjectDatabase.CreateTree(tdOld);
var tdNew = new TreeDefinition()
.Add(path, mainContent, Mode.NonExecutableFile);
Tree treeNew = repo.ObjectDatabase.CreateTree(tdNew);
using (var changes = repo.Diff.Compare<TreeChanges>(treeOld, treeNew,
compareOptions: new CompareOptions
{
Similarity = similarity,
}))
{
verifier(path, changes);
}
}
}
[Fact]
public void CanHandleTwoTreeEntryChangesWithTheSamePathUsingSimilarityNone()
{
// $ git diff-tree --name-status --no-renames -r 2ccccf8 e829333
// T include/Nu/Nu.h
// D objc/Nu.h
CanHandleTwoTreeEntryChangesWithTheSamePath(SimilarityOptions.None,
(path, changes) =>
{
Assert.Equal(2, changes.Count());
Assert.Single(changes.Deleted);
Assert.Single(changes.TypeChanged);
TreeEntryChanges change = changes.Single(c => c.Path == path);
Assert.Equal(Mode.SymbolicLink, change.OldMode);
Assert.Equal(Mode.NonExecutableFile, change.Mode);
Assert.Equal(ChangeKind.TypeChanged, change.Status);
Assert.Equal(path, change.Path);
});
}
[Fact]
public void CanHandleTwoTreeEntryChangesWithTheSamePathUsingSimilarityDefault()
{
// $ git diff-tree --name-status --find-renames -r 2ccccf8 e829333
// T include/Nu/Nu.h