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CheckoutFixture.cs
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using System;
using System.IO;
using System.Linq;
using LibGit2Sharp.Tests.TestHelpers;
using Xunit;
using Xunit.Extensions;
namespace LibGit2Sharp.Tests
{
public class CheckoutFixture : BaseFixture
{
private const string originalFilePath = "a.txt";
private const string originalFileContent = "Hello";
private const string alternateFileContent = "There again";
private const string otherBranchName = "other";
[Theory]
[InlineData("i-do-numbers")]
[InlineData("diff-test-cases")]
public void CanCheckoutAnExistingBranch(string branchName)
{
string path = SandboxStandardTestRepo();
using (var repo = new Repository(path))
{
Branch master = repo.Branches["master"];
Assert.True(master.IsCurrentRepositoryHead);
// Set the working directory to the current head
ResetAndCleanWorkingDirectory(repo);
Assert.False(repo.RetrieveStatus().IsDirty);
Branch branch = repo.Branches[branchName];
Assert.NotNull(branch);
AssertBelongsToARepository(repo, branch);
Branch test = Commands.Checkout(repo, branch);
Assert.False(repo.Info.IsHeadDetached);
AssertBelongsToARepository(repo, test);
Assert.False(test.IsRemote);
Assert.True(test.IsCurrentRepositoryHead);
Assert.Equal(repo.Head, test);
Assert.False(master.IsCurrentRepositoryHead);
// Working directory should not be dirty
Assert.False(repo.RetrieveStatus().IsDirty);
// Assert reflog entry is created
var reflogEntry = repo.Refs.Log(repo.Refs.Head).First();
Assert.Equal(master.Tip.Id, reflogEntry.From);
Assert.Equal(branch.Tip.Id, reflogEntry.To);
Assert.NotNull(reflogEntry.Committer.Email);
Assert.NotNull(reflogEntry.Committer.Name);
Assert.Equal(string.Format("checkout: moving from master to {0}", branchName), reflogEntry.Message);
}
}
[Theory]
[InlineData("i-do-numbers")]
[InlineData("diff-test-cases")]
public void CanCheckoutAnExistingBranchByName(string branchName)
{
string path = SandboxStandardTestRepo();
using (var repo = new Repository(path))
{
Branch master = repo.Branches["master"];
Assert.True(master.IsCurrentRepositoryHead);
// Set the working directory to the current head
ResetAndCleanWorkingDirectory(repo);
Assert.False(repo.RetrieveStatus().IsDirty);
Branch test = Commands.Checkout(repo, branchName);
Assert.False(repo.Info.IsHeadDetached);
Assert.False(test.IsRemote);
Assert.True(test.IsCurrentRepositoryHead);
Assert.Equal(repo.Head, test);
Assert.False(master.IsCurrentRepositoryHead);
// Working directory should not be dirty
Assert.False(repo.RetrieveStatus().IsDirty);
// Assert reflog entry is created
var reflogEntry = repo.Refs.Log(repo.Refs.Head).First();
Assert.Equal(master.Tip.Id, reflogEntry.From);
Assert.Equal(repo.Branches[branchName].Tip.Id, reflogEntry.To);
Assert.NotNull(reflogEntry.Committer.Email);
Assert.NotNull(reflogEntry.Committer.Name);
Assert.Equal(string.Format("checkout: moving from master to {0}", branchName), reflogEntry.Message);
}
}
[Theory]
[InlineData("6dcf9bf", true, "6dcf9bf")]
[InlineData("refs/tags/lw", true, "lw")]
[InlineData("HEAD~2", true, "HEAD~2")]
[InlineData("6dcf9bf", false, "6dcf9bf7541ee10456529833502442f385010c3d")]
[InlineData("refs/tags/lw", false, "e90810b8df3e80c413d903f631643c716887138d")]
[InlineData("HEAD~2", false, "4c062a6361ae6959e06292c1fa5e2822d9c96345")]
public void CanCheckoutAnArbitraryCommit(string commitPointer, bool checkoutByCommitOrBranchSpec, string expectedReflogTarget)
{
string path = SandboxStandardTestRepo();
using (var repo = new Repository(path))
{
Branch master = repo.Branches["master"];
Assert.True(master.IsCurrentRepositoryHead);
// Set the working directory to the current head
ResetAndCleanWorkingDirectory(repo);
Assert.False(repo.RetrieveStatus().IsDirty);
var commit = repo.Lookup<Commit>(commitPointer);
AssertBelongsToARepository(repo, commit);
Branch detachedHead = checkoutByCommitOrBranchSpec ? Commands.Checkout(repo, commitPointer) : Commands.Checkout(repo, commit);
Assert.Equal(repo.Head, detachedHead);
Assert.Equal(commit.Sha, detachedHead.Tip.Sha);
Assert.True(repo.Head.IsCurrentRepositoryHead);
Assert.True(repo.Info.IsHeadDetached);
Assert.False(repo.RetrieveStatus().IsDirty);
Assert.True(detachedHead.IsCurrentRepositoryHead);
Assert.False(detachedHead.IsRemote);
Assert.Equal(detachedHead.FriendlyName, detachedHead.CanonicalName);
Assert.Equal("(no branch)", detachedHead.CanonicalName);
Assert.False(master.IsCurrentRepositoryHead);
// Assert reflog entry is created
var reflogEntry = repo.Refs.Log(repo.Refs.Head).First();
Assert.Equal(master.Tip.Id, reflogEntry.From);
Assert.Equal(commit.Sha, reflogEntry.To.Sha);
Assert.NotNull(reflogEntry.Committer.Email);
Assert.NotNull(reflogEntry.Committer.Name);
Assert.Equal(string.Format("checkout: moving from master to {0}", expectedReflogTarget), reflogEntry.Message);
}
}
[Fact]
public void CheckoutAddsMissingFilesInWorkingDirectory()
{
string repoPath = InitNewRepository();
using (var repo = new Repository(repoPath))
{
PopulateBasicRepository(repo);
// Remove the file in master branch
// Verify it exists after checking out otherBranch.
string fileFullPath = Path.Combine(repo.Info.WorkingDirectory, originalFilePath);
Commands.Remove(repo, fileFullPath);
repo.Commit("2nd commit", Constants.Signature, Constants.Signature);
// Checkout other_branch
Branch otherBranch = repo.Branches[otherBranchName];
Assert.NotNull(otherBranch);
Commands.Checkout(repo, otherBranch);
// Verify working directory is updated
Assert.False(repo.RetrieveStatus().IsDirty);
Assert.Equal(originalFileContent, File.ReadAllText(fileFullPath));
}
}
[Fact]
public void CheckoutRemovesExtraFilesInWorkingDirectory()
{
string repoPath = InitNewRepository();
using (var repo = new Repository(repoPath))
{
PopulateBasicRepository(repo);
// Add extra file in master branch
// Verify it is removed after checking out otherBranch.
string newFileFullPath = Touch(
repo.Info.WorkingDirectory, "b.txt", "hello from master branch!\n");
Commands.Stage(repo, newFileFullPath);
repo.Commit("2nd commit", Constants.Signature, Constants.Signature);
// Checkout other_branch
Branch otherBranch = repo.Branches[otherBranchName];
Assert.NotNull(otherBranch);
Commands.Checkout(repo, otherBranch);
// Verify working directory is updated
Assert.False(repo.RetrieveStatus().IsDirty);
Assert.False(File.Exists(newFileFullPath));
}
}
[Fact]
public void CheckoutUpdatesModifiedFilesInWorkingDirectory()
{
string repoPath = InitNewRepository();
using (var repo = new Repository(repoPath))
{
PopulateBasicRepository(repo);
// Modify file in master branch.
// Verify contents match initial commit after checking out other branch.
string fullPath = Touch(
repo.Info.WorkingDirectory, originalFilePath, "Update : hello from master branch!\n");
Commands.Stage(repo, fullPath);
repo.Commit("2nd commit", Constants.Signature, Constants.Signature);
// Checkout other_branch
Branch otherBranch = repo.Branches[otherBranchName];
Assert.NotNull(otherBranch);
Commands.Checkout(repo, otherBranch);
// Verify working directory is updated
Assert.False(repo.RetrieveStatus().IsDirty);
Assert.Equal(originalFileContent, File.ReadAllText(fullPath));
}
}
[Fact]
public void CanForcefullyCheckoutWithConflictingStagedChanges()
{
// This test will check that we can checkout a branch that results
// in a conflict. Here is the high level steps of the test:
// 1) Create branch otherBranch from current commit in master,
// 2) Commit change to master
// 3) Switch to otherBranch
// 4) Create conflicting change
// 5) Forcefully checkout master
string path = SandboxStandardTestRepo();
using (var repo = new Repository(path))
{
Branch master = repo.Branches["master"];
Assert.True(master.IsCurrentRepositoryHead);
// Set the working directory to the current head.
ResetAndCleanWorkingDirectory(repo);
Assert.False(repo.RetrieveStatus().IsDirty);
// Create otherBranch from current Head.
repo.Branches.Add(otherBranchName, master.Tip);
// Add change to master.
Touch(repo.Info.WorkingDirectory, originalFilePath, originalFileContent);
Commands.Stage(repo, originalFilePath);
repo.Commit("change in master", Constants.Signature, Constants.Signature);
// Checkout otherBranch.
Commands.Checkout(repo, otherBranchName);
// Add change to otherBranch.
Touch(repo.Info.WorkingDirectory, originalFilePath, alternateFileContent);
Commands.Stage(repo, originalFilePath);
// Assert that normal checkout throws exception
// for the conflict.
Assert.Throws<CheckoutConflictException>(() => Commands.Checkout(repo, master.CanonicalName));
// Checkout with force option should succeed.
Commands.Checkout(repo, master.CanonicalName, new CheckoutOptions() { CheckoutModifiers = CheckoutModifiers.Force});
// Assert that master branch is checked out.
Assert.True(repo.Branches["master"].IsCurrentRepositoryHead);
// And that the current index is not dirty.
Assert.False(repo.RetrieveStatus().IsDirty);
}
}
[Fact]
public void CheckingOutWithMergeConflictsThrows()
{
string repoPath = InitNewRepository();
using (var repo = new Repository(repoPath))
{
Touch(repo.Info.WorkingDirectory, originalFilePath, "Hello\n");
Commands.Stage(repo, originalFilePath);
repo.Commit("Initial commit", Constants.Signature, Constants.Signature);
// Create 2nd branch
repo.CreateBranch("branch2");
// Update file in main
Touch(repo.Info.WorkingDirectory, originalFilePath, "Hello from master!\n");
Commands.Stage(repo, originalFilePath);
repo.Commit("2nd commit", Constants.Signature, Constants.Signature);
// Checkout branch2
Commands.Checkout(repo, "branch2");
Touch(repo.Info.WorkingDirectory, originalFilePath, "Hello From branch2!\n");
// Assert that checking out master throws
// when there are unstaged commits
Assert.Throws<CheckoutConflictException>(() => Commands.Checkout(repo, "master"));
// And when there are staged commits
Commands.Stage(repo, originalFilePath);
Assert.Throws<CheckoutConflictException>(() => Commands.Checkout(repo, "master"));
}
}
[Fact]
public void CanCancelCheckoutThroughNotifyCallback()
{
string repoPath = InitNewRepository();
using (var repo = new Repository(repoPath))
{
const string relativePath = "a.txt";
Touch(repo.Info.WorkingDirectory, relativePath, "Hello\n");
Commands.Stage(repo, relativePath);
repo.Commit("Initial commit", Constants.Signature, Constants.Signature);
// Create 2nd branch
repo.CreateBranch("branch2");
// Update file in main
Touch(repo.Info.WorkingDirectory, relativePath, "Hello from master!\n");
Commands.Stage(repo, relativePath);
repo.Commit("2nd commit", Constants.Signature, Constants.Signature);
// Checkout branch2
Commands.Checkout(repo, "branch2");
// Update the context of a.txt - a.txt will then conflict between branch2 and master.
Touch(repo.Info.WorkingDirectory, relativePath, "Hello From branch2!\n");
// Verify that we get called for the notify conflict cb
string conflictPath = string.Empty;
CheckoutOptions options = new CheckoutOptions()
{
OnCheckoutNotify = (path, flags) => { conflictPath = path; return false; },
CheckoutNotifyFlags = CheckoutNotifyFlags.Conflict,
};
Assert.Throws<UserCancelledException>(() => Commands.Checkout(repo, "master", options));
Assert.Equal(relativePath, conflictPath);
}
}
[Fact]
public void CheckingOutInABareRepoThrows()
{
string path = SandboxBareTestRepo();
using (var repo = new Repository(path))
{
Assert.Throws<BareRepositoryException>(() => Commands.Checkout(repo, repo.Branches["refs/heads/test"]));
Assert.Throws<BareRepositoryException>(() => Commands.Checkout(repo, "refs/heads/test"));
}
}
[Fact]
public void CheckingOutAgainstAnUnbornBranchThrows()
{
string repoPath = InitNewRepository();
using (var repo = new Repository(repoPath))
{
Assert.True(repo.Info.IsHeadUnborn);
Assert.Throws<UnbornBranchException>(() => Commands.Checkout(repo, repo.Head));
}
}
[Fact]
public void CheckingOutANonExistingBranchThrows()
{
string path = SandboxBareTestRepo();
using (var repo = new Repository(path))
{
Assert.Throws<NotFoundException>(() => Commands.Checkout(repo, "i-do-not-exist"));
}
}
[Fact]
public void CheckingOutABranchWithBadParamsThrows()
{
string path = SandboxBareTestRepo();
using (var repo = new Repository(path))
{
Assert.Throws<ArgumentException>(() => Commands.Checkout(repo, string.Empty));
Assert.Throws<ArgumentNullException>(() => Commands.Checkout(repo, default(Branch)));
Assert.Throws<ArgumentNullException>(() => Commands.Checkout(repo, default(string)));
}
}
[Fact]
public void CheckingOutThroughBranchCallsCheckoutProgress()
{
string repoPath = InitNewRepository();
using (var repo = new Repository(repoPath))
{
PopulateBasicRepository(repo);
bool wasCalled = false;
Branch branch = repo.Branches[otherBranchName];
Commands.Checkout(repo, branch,
new CheckoutOptions { OnCheckoutProgress = (path, completed, total) => wasCalled = true});
Assert.True(wasCalled);
}
}
[Fact]
public void CheckingOutThroughRepositoryCallsCheckoutProgress()
{
string repoPath = InitNewRepository();
using (var repo = new Repository(repoPath))
{
PopulateBasicRepository(repo);
bool wasCalled = false;
Commands.Checkout(repo, otherBranchName, new CheckoutOptions() { OnCheckoutProgress = (path, completed, total) => wasCalled = true});
Assert.True(wasCalled);
}
}
[Theory]
[InlineData(CheckoutNotifyFlags.Conflict, "conflict.txt", false)]
[InlineData(CheckoutNotifyFlags.Updated, "updated.txt", false)]
[InlineData(CheckoutNotifyFlags.Untracked, "untracked.txt", false)]
[InlineData(CheckoutNotifyFlags.Ignored, "bin", true)]
public void CheckingOutCallsCheckoutNotify(CheckoutNotifyFlags notifyFlags, string expectedNotificationPath, bool isDirectory)
{
if (isDirectory)
{
expectedNotificationPath = expectedNotificationPath + Path.DirectorySeparatorChar;
}
string repoPath = InitNewRepository();
using (var repo = new Repository(repoPath))
{
PopulateBasicRepository(repo);
const string relativePathUpdated = "updated.txt";
Touch(repo.Info.WorkingDirectory, relativePathUpdated, "updated file text A");
Commands.Stage(repo, relativePathUpdated);
repo.Commit("Commit initial update file", Constants.Signature, Constants.Signature);
// Create conflicting change
const string relativePathConflict = "conflict.txt";
Touch(repo.Info.WorkingDirectory, relativePathConflict, "conflict file text A");
Commands.Stage(repo, relativePathConflict);
repo.Commit("Initial commit of conflict.txt and update.txt", Constants.Signature, Constants.Signature);
// Create another branch
repo.CreateBranch("newbranch");
// Make an edit to conflict.txt and update.txt
Touch(repo.Info.WorkingDirectory, relativePathUpdated, "updated file text BB");
Commands.Stage(repo, relativePathUpdated);
Touch(repo.Info.WorkingDirectory, relativePathConflict, "conflict file text BB");
Commands.Stage(repo, relativePathConflict);
repo.Commit("2nd commit of conflict.txt and update.txt on master branch", Constants.Signature, Constants.Signature);
// Checkout other branch
Commands.Checkout(repo, "newbranch");
// Make alternate edits to conflict.txt and update.txt
Touch(repo.Info.WorkingDirectory, relativePathUpdated, "updated file text CCC");
Commands.Stage(repo, relativePathUpdated);
Touch(repo.Info.WorkingDirectory, relativePathConflict, "conflict file text CCC");
Commands.Stage(repo, relativePathConflict);
repo.Commit("2nd commit of conflict.txt and update.txt on newbranch", Constants.Signature, Constants.Signature);
// make conflicting change to conflict.txt
Touch(repo.Info.WorkingDirectory, relativePathConflict, "conflict file text DDDD");
Commands.Stage(repo, relativePathConflict);
// Create ignored change
string relativePathIgnore = Path.Combine("bin", "ignored.txt");
Touch(repo.Info.WorkingDirectory, relativePathIgnore, "ignored file");
// Create untracked change
const string relativePathUntracked = "untracked.txt";
Touch(repo.Info.WorkingDirectory, relativePathUntracked, "untracked file");
bool wasCalled = false;
string actualNotificationPath = string.Empty;
CheckoutNotifyFlags actualNotifyFlags = CheckoutNotifyFlags.None;
CheckoutOptions options = new CheckoutOptions()
{
OnCheckoutNotify = (path, notificationType) => { wasCalled = true; actualNotificationPath = path; actualNotifyFlags = notificationType; return true; },
CheckoutNotifyFlags = notifyFlags,
};
Assert.Throws<CheckoutConflictException>(() => Commands.Checkout(repo, "master", options));
Assert.True(wasCalled);
Assert.Equal(expectedNotificationPath, actualNotificationPath);
Assert.Equal(notifyFlags, actualNotifyFlags);
}
}
[Fact]
public void CheckoutRetainsUntrackedChanges()
{
string repoPath = InitNewRepository();
using (var repo = new Repository(repoPath))
{
PopulateBasicRepository(repo);
// Generate an unstaged change.
string fullPathFileB = Touch(repo.Info.WorkingDirectory, "b.txt", alternateFileContent);
// Verify that there is an untracked entry.
Assert.Single(repo.RetrieveStatus().Untracked);
Assert.Equal(FileStatus.NewInWorkdir, repo.RetrieveStatus(fullPathFileB));
Commands.Checkout(repo, otherBranchName);
// Verify untracked entry still exists.
Assert.Single(repo.RetrieveStatus().Untracked);
Assert.Equal(FileStatus.NewInWorkdir, repo.RetrieveStatus(fullPathFileB));
}
}
[Fact]
public void ForceCheckoutRetainsUntrackedChanges()
{
string repoPath = InitNewRepository();
using (var repo = new Repository(repoPath))
{
PopulateBasicRepository(repo);
// Generate an unstaged change.
string fullPathFileB = Touch(repo.Info.WorkingDirectory, "b.txt", alternateFileContent);
// Verify that there is an untracked entry.
Assert.Single(repo.RetrieveStatus().Untracked);
Assert.Equal(FileStatus.NewInWorkdir, repo.RetrieveStatus(fullPathFileB));
Commands.Checkout(repo, otherBranchName, new CheckoutOptions() { CheckoutModifiers = CheckoutModifiers.Force });
// Verify untracked entry still exists.
Assert.Single(repo.RetrieveStatus().Untracked);
Assert.Equal(FileStatus.NewInWorkdir, repo.RetrieveStatus(fullPathFileB));
}
}
[Fact]
public void CheckoutRetainsUnstagedChanges()
{
string repoPath = InitNewRepository();
using (var repo = new Repository(repoPath))
{
PopulateBasicRepository(repo);
// Generate an unstaged change.
string fullPathFileA = Touch(repo.Info.WorkingDirectory, originalFilePath, alternateFileContent);
// Verify that there is a modified entry.
Assert.Single(repo.RetrieveStatus().Modified);
Assert.Equal(FileStatus.ModifiedInWorkdir, repo.RetrieveStatus(fullPathFileA));
Commands.Checkout(repo, otherBranchName);
// Verify modified entry still exists.
Assert.Single(repo.RetrieveStatus().Modified);
Assert.Equal(FileStatus.ModifiedInWorkdir, repo.RetrieveStatus(fullPathFileA));
}
}
[Fact]
public void CheckoutRetainsStagedChanges()
{
string repoPath = InitNewRepository();
using (var repo = new Repository(repoPath))
{
PopulateBasicRepository(repo);
// Generate a staged change.
string fullPathFileA = Touch(repo.Info.WorkingDirectory, originalFilePath, alternateFileContent);
Commands.Stage(repo, fullPathFileA);
// Verify that there is a staged entry.
Assert.Single(repo.RetrieveStatus().Staged);
Assert.Equal(FileStatus.ModifiedInIndex, repo.RetrieveStatus(fullPathFileA));
Commands.Checkout(repo, otherBranchName);
// Verify staged entry still exists.
Assert.Single(repo.RetrieveStatus().Staged);
Assert.Equal(FileStatus.ModifiedInIndex, repo.RetrieveStatus(fullPathFileA));
}
}
[Fact]
public void CheckoutRetainsIgnoredChanges()
{
string repoPath = InitNewRepository();
using (var repo = new Repository(repoPath))
{
PopulateBasicRepository(repo);
// Create file in ignored bin directory.
string ignoredFilePath = Touch(
repo.Info.WorkingDirectory,
"bin/some_ignored_file.txt",
"hello from this ignored file.");
Assert.Single(repo.RetrieveStatus(new StatusOptions { IncludeIgnored = true }).Ignored);
Assert.Equal(FileStatus.Ignored, repo.RetrieveStatus(ignoredFilePath));
Commands.Checkout(repo, otherBranchName);
// Verify that the ignored file still exists.
Assert.Equal(FileStatus.Ignored, repo.RetrieveStatus(ignoredFilePath));
Assert.True(File.Exists(ignoredFilePath));
}
}
[Fact]
public void ForceCheckoutRetainsIgnoredChanges()
{
string repoPath = InitNewRepository();
using (var repo = new Repository(repoPath))
{
PopulateBasicRepository(repo);
// Create file in ignored bin directory.
string ignoredFilePath = Touch(
repo.Info.WorkingDirectory,
"bin/some_ignored_file.txt",
"hello from this ignored file.");
Assert.Single(repo.RetrieveStatus(new StatusOptions { IncludeIgnored = true }).Ignored);
Assert.Equal(FileStatus.Ignored, repo.RetrieveStatus(ignoredFilePath));
Commands.Checkout(repo, otherBranchName, new CheckoutOptions() { CheckoutModifiers = CheckoutModifiers.Force });
// Verify that the ignored file still exists.
Assert.Equal(FileStatus.Ignored, repo.RetrieveStatus(ignoredFilePath));
Assert.True(File.Exists(ignoredFilePath));
}
}
[Fact]
public void CheckoutBranchSnapshot()
{
string repoPath = InitNewRepository();
using (var repo = new Repository(repoPath))
{
PopulateBasicRepository(repo);
// Get the current status of master
// and the current tip.
Branch initial = repo.Branches["master"];
Commit initialCommit = initial.Tip;
// Add commit to master
string fullPath = Touch(repo.Info.WorkingDirectory, originalFilePath, "Update : hello from master branch!\n");
Commands.Stage(repo, fullPath);
repo.Commit("2nd commit", Constants.Signature, Constants.Signature);
Assert.False(repo.Info.IsHeadDetached);
Commands.Checkout(repo, initial);
// Head should point at initial commit.
Assert.Equal(repo.Head.Tip, initialCommit);
Assert.False(repo.RetrieveStatus().IsDirty);
// Verify that HEAD is detached.
Assert.Equal(repo.Refs["HEAD"].TargetIdentifier, initial.Tip.Sha);
Assert.True(repo.Info.IsHeadDetached);
}
}
[Theory]
[InlineData("refs/remotes/origin/master")]
[InlineData("master@{u}")]
[InlineData("origin/master")]
public void CheckingOutRemoteBranchResultsInDetachedHead(string remoteBranchSpec)
{
string path = SandboxStandardTestRepo();
using (var repo = new Repository(path))
{
Branch master = repo.Branches["master"];
Assert.True(master.IsCurrentRepositoryHead);
// Set the working directory to the current head
ResetAndCleanWorkingDirectory(repo);
Commands.Checkout(repo, remoteBranchSpec);
// Verify that HEAD is detached.
Assert.Equal(repo.Refs["HEAD"].TargetIdentifier, repo.Branches["origin/master"].Tip.Sha);
Assert.True(repo.Info.IsHeadDetached);
}
}
[Fact]
public void CheckingOutABranchDoesNotAlterBinaryFiles()
{
string path = SandboxStandardTestRepo();
using (var repo = new Repository(path))
{
// $ git hash-object square-logo.png
// b758c5bc1c8117c2a4c545dae2903e36360501c5
const string expectedSha = "b758c5bc1c8117c2a4c545dae2903e36360501c5";
// The blob actually exists in the object database with the correct Sha
Assert.Equal(expectedSha, repo.Lookup<Blob>(expectedSha).Sha);
Commands.Checkout(repo, "refs/heads/logo", new CheckoutOptions() { CheckoutModifiers = CheckoutModifiers.Force });
// The Index has been updated as well with the blob
Assert.Equal(expectedSha, repo.Index["square-logo.png"].Id.Sha);
// Recreating a Blob from the checked out file...
Blob blob = repo.ObjectDatabase.CreateBlob("square-logo.png");
// ...generates the same Sha
Assert.Equal(expectedSha, blob.Id.Sha);
}
}
[Theory]
[InlineData("a447ba2ca8")]
[InlineData("lw")]
[InlineData("e90810^{}")]
public void CheckoutFromDetachedHead(string commitPointer)
{
string path = SandboxStandardTestRepo();
using (var repo = new Repository(path))
{
// Set the working directory to the current head
ResetAndCleanWorkingDirectory(repo);
Assert.False(repo.RetrieveStatus().IsDirty);
var commitSha = repo.Lookup(commitPointer).Sha;
Branch initialHead = Commands.Checkout(repo, "6dcf9bf");
Commands.Checkout(repo, commitPointer);
// Assert reflog entry is created
var reflogEntry = repo.Refs.Log(repo.Refs.Head).First();
Assert.Equal(initialHead.Tip.Id, reflogEntry.From);
Assert.Equal(commitSha, reflogEntry.To.Sha);
Assert.NotNull(reflogEntry.Committer.Email);
Assert.NotNull(reflogEntry.Committer.Name);
Assert.Equal(string.Format("checkout: moving from {0} to {1}", initialHead.Tip.Sha, commitPointer), reflogEntry.Message);
}
}
[Fact]
public void CheckoutBranchFromDetachedHead()
{
string path = SandboxStandardTestRepo();
using (var repo = new Repository(path, new RepositoryOptions{ Identity = Constants.Identity }))
{
// Set the working directory to the current head
ResetAndCleanWorkingDirectory(repo);
Assert.False(repo.RetrieveStatus().IsDirty);
Branch initialHead = Commands.Checkout(repo, "6dcf9bf");
Assert.True(repo.Info.IsHeadDetached);
var before = DateTimeOffset.Now.TruncateMilliseconds();
Branch newHead = Commands.Checkout(repo, repo.Branches["master"]);
// Assert reflog entry is created
AssertRefLogEntry(repo, "HEAD",
string.Format("checkout: moving from {0} to {1}", initialHead.Tip.Sha, newHead.FriendlyName),
initialHead.Tip.Id, newHead.Tip.Id, Constants.Identity, before);
}
}
[Theory]
[InlineData("master", "refs/heads/master")]
[InlineData("heads/master", "refs/heads/master")]
public void CheckoutBranchByShortNameAttachesTheHead(string shortBranchName, string referenceName)
{
string path = SandboxStandardTestRepo();
using (var repo = new Repository(path))
{
// Set the working directory to the current head
ResetAndCleanWorkingDirectory(repo);
Assert.False(repo.RetrieveStatus().IsDirty);
Commands.Checkout(repo, "6dcf9bf");
Assert.True(repo.Info.IsHeadDetached);
var branch = Commands.Checkout(repo, shortBranchName);
Assert.False(repo.Info.IsHeadDetached);
Assert.Equal(referenceName, repo.Head.CanonicalName);
Assert.Equal(referenceName, branch.CanonicalName);
}
}
[Fact]
public void CheckoutPreviousCheckedOutBranch()
{
string path = SandboxStandardTestRepo();
using (var repo = new Repository(path))
{
// Set the working directory to the current head
ResetAndCleanWorkingDirectory(repo);
Assert.False(repo.RetrieveStatus().IsDirty);
Branch previousHead = Commands.Checkout(repo, "i-do-numbers");
Commands.Checkout(repo, "diff-test-cases");
//Go back to previous branch checked out
var branch = Commands.Checkout(repo, @"@{-1}");
Assert.False(repo.Info.IsHeadDetached);
Assert.Equal(previousHead.CanonicalName, repo.Head.CanonicalName);
Assert.Equal(previousHead.CanonicalName, branch.CanonicalName);
}
}
[Fact]
public void CheckoutCurrentReference()
{
string path = SandboxStandardTestRepo();
using (var repo = new Repository(path, new RepositoryOptions { Identity = Constants.Identity }))
{
Branch master = repo.Branches["master"];
Assert.True(master.IsCurrentRepositoryHead);
ResetAndCleanWorkingDirectory(repo);
Assert.False(repo.RetrieveStatus().IsDirty);
var reflogEntriesCount = repo.Refs.Log(repo.Refs.Head).Count();
// Checkout branch
Commands.Checkout(repo, master);
Assert.Equal(reflogEntriesCount, repo.Refs.Log(repo.Refs.Head).Count());
var before = DateTimeOffset.Now.TruncateMilliseconds();
// Checkout in detached mode
Commands.Checkout(repo, master.Tip.Sha);
Assert.True(repo.Info.IsHeadDetached);
AssertRefLogEntry(repo, "HEAD",
string.Format("checkout: moving from master to {0}", master.Tip.Sha),
master.Tip.Id, master.Tip.Id, Constants.Identity, before);
// Checkout detached "HEAD" => nothing should happen
reflogEntriesCount = repo.Refs.Log(repo.Refs.Head).Count();
Commands.Checkout(repo, repo.Head);
Assert.Equal(reflogEntriesCount, repo.Refs.Log(repo.Refs.Head).Count());
// Checkout attached "HEAD" => nothing should happen
Commands.Checkout(repo, "master");
reflogEntriesCount = repo.Refs.Log(repo.Refs.Head).Count();
Commands.Checkout(repo, repo.Head);
Assert.Equal(reflogEntriesCount, repo.Refs.Log(repo.Refs.Head).Count());
Commands.Checkout(repo, "HEAD");
Assert.Equal(reflogEntriesCount, repo.Refs.Log(repo.Refs.Head).Count());
}
}
[Fact]
public void CheckoutLowerCasedHeadThrows()
{
string path = SandboxStandardTestRepo();
using (var repo = new Repository(path))
{
Assert.Throws<NotFoundException>(() => Commands.Checkout(repo, "head"));
}
}
[Fact]
public void CanCheckoutAttachedHead()
{
string path = SandboxStandardTestRepo();
using (var repo = new Repository(path))
{
Assert.False(repo.Info.IsHeadDetached);
Commands.Checkout(repo, repo.Head);
Assert.False(repo.Info.IsHeadDetached);
Commands.Checkout(repo, "HEAD");
Assert.False(repo.Info.IsHeadDetached);
}
}
[Fact]
public void CanCheckoutDetachedHead()
{
string path = SandboxStandardTestRepo();
using (var repo = new Repository(path))
{
Commands.Checkout(repo, repo.Head.Tip.Sha);
Assert.True(repo.Info.IsHeadDetached);
Commands.Checkout(repo, repo.Head);
Assert.True(repo.Info.IsHeadDetached);
Commands.Checkout(repo, "HEAD");
Assert.True(repo.Info.IsHeadDetached);
}
}
[Theory]
[InlineData("master", "6dcf9bf", "readme.txt", FileStatus.NewInIndex)]
[InlineData("master", "refs/tags/lw", "readme.txt", FileStatus.NewInIndex)]
[InlineData("master", "i-do-numbers", "super-file.txt", FileStatus.NewInIndex)]
[InlineData("i-do-numbers", "diff-test-cases", "numbers.txt", FileStatus.ModifiedInIndex)]
public void CanCheckoutPath(string originalBranch, string checkoutFrom, string path, FileStatus expectedStatus)
{
string repoPath = SandboxStandardTestRepo();
using (var repo = new Repository(repoPath))
{
// Set the working directory to the current head
ResetAndCleanWorkingDirectory(repo);
Commands.Checkout(repo, originalBranch);
Assert.False(repo.RetrieveStatus().IsDirty);
repo.CheckoutPaths(checkoutFrom, new[] { path });
Assert.Equal(expectedStatus, repo.RetrieveStatus(path));
Assert.Single(repo.RetrieveStatus());
}
}
[Fact]
public void CanCheckoutPaths()
{
string repoPath = SandboxStandardTestRepo();
var checkoutPaths = new[] { "numbers.txt", "super-file.txt" };
using (var repo = new Repository(repoPath))
{
// Set the working directory to the current head
ResetAndCleanWorkingDirectory(repo);
Assert.False(repo.RetrieveStatus().IsDirty);
repo.CheckoutPaths("i-do-numbers", checkoutPaths);
foreach (string checkoutPath in checkoutPaths)
{
Assert.Equal(FileStatus.NewInIndex, repo.RetrieveStatus(checkoutPath));
}
}
}
[Fact]
public void CannotCheckoutPathsWithEmptyOrNullPathArgument()
{
string repoPath = SandboxStandardTestRepo();
using (var repo = new Repository(repoPath))
{
// Set the working directory to the current head
ResetAndCleanWorkingDirectory(repo);
Assert.False(repo.RetrieveStatus().IsDirty);
// Passing null 'paths' parameter should throw
Assert.Throws<ArgumentNullException>(() => repo.CheckoutPaths("i-do-numbers", null));
// Passing empty list should do nothing