~ubuntu-branches/ubuntu/trusty/monodevelop/trusty-proposed

/*
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*/

using NGit;
using NGit.Api;
using NGit.Dircache;
using NGit.Revwalk;
using Sharpen;

namespace NGit.Api
{
	/// <summary>
	/// Unit tests of path-based uses of
	/// <see cref="CheckoutCommand">CheckoutCommand</see>
	/// </summary>
	[NUnit.Framework.TestFixture]
	public class PathCheckoutCommandTest : RepositoryTestCase
	{
		private static readonly string FILE1 = "f/Test.txt";

		private static readonly string FILE2 = "Test2.txt";

		private static readonly string FILE3 = "Test3.txt";

		internal Git git;

		internal RevCommit initialCommit;

		internal RevCommit secondCommit;

		/// <exception cref="System.Exception"></exception>
		[NUnit.Framework.SetUp]
		public override void SetUp()
		{
			base.SetUp();
			git = new Git(db);
			WriteTrashFile(FILE1, "1");
			WriteTrashFile(FILE2, "a");
			git.Add().AddFilepattern(FILE1).AddFilepattern(FILE2).Call();
			initialCommit = git.Commit().SetMessage("Initial commit").Call();
			WriteTrashFile(FILE1, "2");
			WriteTrashFile(FILE2, "b");
			git.Add().AddFilepattern(FILE1).AddFilepattern(FILE2).Call();
			secondCommit = git.Commit().SetMessage("Second commit").Call();
			WriteTrashFile(FILE1, "3");
			WriteTrashFile(FILE2, "c");
			git.Add().AddFilepattern(FILE1).AddFilepattern(FILE2).Call();
			git.Commit().SetMessage("Third commit").Call();
		}

		/// <exception cref="System.Exception"></exception>
		[NUnit.Framework.Test]
		public virtual void TestUpdateWorkingDirectory()
		{
			CheckoutCommand co = git.Checkout();
			FilePath written = WriteTrashFile(FILE1, string.Empty);
			NUnit.Framework.Assert.AreEqual(string.Empty, Read(written));
			co.AddPath(FILE1).Call();
			NUnit.Framework.Assert.AreEqual("3", Read(written));
			NUnit.Framework.Assert.AreEqual("c", Read(new FilePath(db.WorkTree, FILE2)));
		}

		/// <exception cref="System.Exception"></exception>
		[NUnit.Framework.Test]
		public virtual void TestCheckoutFirst()
		{
			CheckoutCommand co = git.Checkout();
			FilePath written = WriteTrashFile(FILE1, string.Empty);
			co.SetStartPoint(initialCommit).AddPath(FILE1).Call();
			NUnit.Framework.Assert.AreEqual("1", Read(written));
			NUnit.Framework.Assert.AreEqual("c", Read(new FilePath(db.WorkTree, FILE2)));
		}

		/// <exception cref="System.Exception"></exception>
		[NUnit.Framework.Test]
		public virtual void TestCheckoutSecond()
		{
			CheckoutCommand co = git.Checkout();
			FilePath written = WriteTrashFile(FILE1, string.Empty);
			co.SetStartPoint("HEAD~1").AddPath(FILE1).Call();
			NUnit.Framework.Assert.AreEqual("2", Read(written));
			NUnit.Framework.Assert.AreEqual("c", Read(new FilePath(db.WorkTree, FILE2)));
		}

		/// <exception cref="System.Exception"></exception>
		[NUnit.Framework.Test]
		public virtual void TestCheckoutMultiple()
		{
			CheckoutCommand co = git.Checkout();
			FilePath test = WriteTrashFile(FILE1, string.Empty);
			FilePath test2 = WriteTrashFile(FILE2, string.Empty);
			co.SetStartPoint("HEAD~2").AddPath(FILE1).AddPath(FILE2).Call();
			NUnit.Framework.Assert.AreEqual("1", Read(test));
			NUnit.Framework.Assert.AreEqual("a", Read(test2));
		}

		/// <exception cref="System.Exception"></exception>
		[NUnit.Framework.Test]
		public virtual void TestUpdateWorkingDirectoryFromIndex()
		{
			CheckoutCommand co = git.Checkout();
			FilePath written = WriteTrashFile(FILE1, "3a");
			git.Add().AddFilepattern(FILE1).Call();
			written = WriteTrashFile(FILE1, string.Empty);
			NUnit.Framework.Assert.AreEqual(string.Empty, Read(written));
			co.AddPath(FILE1).Call();
			NUnit.Framework.Assert.AreEqual("3a", Read(written));
			NUnit.Framework.Assert.AreEqual("c", Read(new FilePath(db.WorkTree, FILE2)));
		}

		/// <exception cref="System.Exception"></exception>
		[NUnit.Framework.Test]
		public virtual void TestUpdateWorkingDirectoryFromHeadWithIndexChange()
		{
			CheckoutCommand co = git.Checkout();
			FilePath written = WriteTrashFile(FILE1, "3a");
			git.Add().AddFilepattern(FILE1).Call();
			written = WriteTrashFile(FILE1, string.Empty);
			NUnit.Framework.Assert.AreEqual(string.Empty, Read(written));
			co.AddPath(FILE1).SetStartPoint("HEAD").Call();
			NUnit.Framework.Assert.AreEqual("3", Read(written));
			NUnit.Framework.Assert.AreEqual("c", Read(new FilePath(db.WorkTree, FILE2)));
		}

		/// <exception cref="System.Exception"></exception>
		[NUnit.Framework.Test]
		public virtual void TestUpdateWorkingDirectoryFromIndex2()
		{
			CheckoutCommand co = git.Checkout();
			FsTick(git.GetRepository().GetIndexFile());
			FilePath written1 = WriteTrashFile(FILE1, "3(modified)");
			FilePath written2 = WriteTrashFile(FILE2, "a(modified)");
			FsTick(written2);
			// make sure that we get unsmudged entries for FILE1 and FILE2
			WriteTrashFile(FILE3, "foo");
			git.Add().AddFilepattern(FILE3).Call();
			FsTick(git.GetRepository().GetIndexFile());
			git.Add().AddFilepattern(FILE1).AddFilepattern(FILE2).Call();
			FsTick(git.GetRepository().GetIndexFile());
			WriteTrashFile(FILE1, "3(modified again)");
			WriteTrashFile(FILE2, "a(modified again)");
			FsTick(written2);
			co.AddPath(FILE1).SetStartPoint(secondCommit).Call();
			NUnit.Framework.Assert.AreEqual("2", Read(written1));
			NUnit.Framework.Assert.AreEqual("a(modified again)", Read(written2));
			ValidateIndex(git);
		}

		/// <exception cref="NGit.Errors.NoWorkTreeException"></exception>
		/// <exception cref="System.IO.IOException"></exception>
		public static void ValidateIndex(Git git)
		{
			DirCache dc = git.GetRepository().LockDirCache();
			ObjectReader r = git.GetRepository().ObjectDatabase.NewReader();
			try
			{
				for (int i = 0; i < dc.GetEntryCount(); ++i)
				{
					DirCacheEntry entry = dc.GetEntry(i);
					if (entry.Length > 0)
					{
						NUnit.Framework.Assert.AreEqual(entry.Length, r.GetObjectSize(entry.GetObjectId()
							, ObjectReader.OBJ_ANY));
					}
				}
			}
			finally
			{
				dc.Unlock();
				r.Release();
			}
		}

		/// <exception cref="System.Exception"></exception>
		public virtual void TestCheckoutMixedNewlines()
		{
			// "git config core.autocrlf true"
			StoredConfig config = git.GetRepository().GetConfig();
			config.SetBoolean(ConfigConstants.CONFIG_CORE_SECTION, null, ConfigConstants.CONFIG_KEY_AUTOCRLF
				, true);
			config.Save();
			// edit <FILE1>
			FilePath written = WriteTrashFile(FILE1, "4\r\n4");
			NUnit.Framework.Assert.AreEqual("4\r\n4", Read(written));
			// "git add <FILE1>"
			git.Add().AddFilepattern(FILE1).Call();
			// "git commit -m 'CRLF'"
			git.Commit().SetMessage("CRLF").Call();
			// edit <FILE1>
			written = WriteTrashFile(FILE1, "4\n4");
			NUnit.Framework.Assert.AreEqual("4\n4", Read(written));
			// "git add <FILE1>"
			git.Add().AddFilepattern(FILE1).Call();
			// "git checkout -- <FILE1>
			git.Checkout().AddPath(FILE1).Call();
			// "git status" => clean
			Status status = git.Status().Call();
			NUnit.Framework.Assert.AreEqual(0, status.GetAdded().Count);
			NUnit.Framework.Assert.AreEqual(0, status.GetChanged().Count);
			NUnit.Framework.Assert.AreEqual(0, status.GetConflicting().Count);
			NUnit.Framework.Assert.AreEqual(0, status.GetMissing().Count);
			NUnit.Framework.Assert.AreEqual(0, status.GetModified().Count);
			NUnit.Framework.Assert.AreEqual(0, status.GetRemoved().Count);
			NUnit.Framework.Assert.AreEqual(0, status.GetUntracked().Count);
		}

		/// <exception cref="System.Exception"></exception>
		[NUnit.Framework.Test]
		public virtual void TestCheckoutRepository()
		{
			CheckoutCommand co = git.Checkout();
			FilePath test = WriteTrashFile(FILE1, string.Empty);
			FilePath test2 = WriteTrashFile(FILE2, string.Empty);
			co.SetStartPoint("HEAD~2").SetAllPaths(true).Call();
			NUnit.Framework.Assert.AreEqual("1", Read(test));
			NUnit.Framework.Assert.AreEqual("a", Read(test2));
		}

		/// <exception cref="System.Exception"></exception>
		public virtual void TestCheckoutOfConflictingFileShouldThrow()
		{
			// Setup
			git.Checkout().SetCreateBranch(true).SetName("conflict").SetStartPoint(initialCommit
				).Call();
			WriteTrashFile(FILE1, "Conflicting");
			RevCommit conflict = git.Commit().SetAll(true).SetMessage("Conflicting change").Call
				();
			git.Checkout().SetName("master").Call();
			git.Merge().Include(conflict).Call();
			NUnit.Framework.Assert.AreEqual(RepositoryState.MERGING, db.GetRepositoryState());
			// Now check out the conflicting path
			git.Checkout().AddPath(FILE1).Call();
		}
	}
}