Add a test for ignore-regex.

GitTfsTest/Integration/CloneTests.cs

@@ -195,5 +195,24 @@ namespace Sep.Git.Tfs.Test.Integration
             h.AssertRef("MyProject", "refs/remotes/tfs/Branch", expectedShaBranch);
             h.AssertFileInWorkspace("MyProject", "File.txt", "File contents_main_branch=>_merge");
         }
+
+        #region ignore regexes
+
+        [FactExceptOnUnix]
+        public void IgnoresAFile()
+        {
+            h.SetupFake(r =>
+            {
+                r.Changeset(1, "Project created from template", DateTime.Parse("2012-01-01 12:12:12 -05:00"))
+                    .Change(TfsChangeType.Add, TfsItemType.Folder, "$/MyProject");
+                r.Changeset(2, "Add some files", DateTime.Parse("2012-01-02 12:12:12 -05:00"))
+                 .Change(TfsChangeType.Edit, TfsItemType.File, "$/MyProject/README", "tldr\nanother line\n")
+                 .Change(TfsChangeType.Add, TfsItemType.File, "$/MyProject/app.exe", "Do not include");
+            });
+            h.Run("clone", h.TfsUrl, "$/MyProject", "MyProject", "--ignore-regex=.exe$");
+            h.AssertNoFileInWorkspace("MyProject", "app.exe");
+        }
+
+        #endregion
     }
 }

GitTfsTest/Integration/IntegrationHelper.cs

@@ -271,8 +271,7 @@ namespace Sep.Git.Tfs.Test.Integration
 
         public int GetCommitCount(string repodir)
         {
-            var repo = new LibGit2Sharp.Repository(Path.Combine(Workdir, repodir));
-            return repo.Commits.Count();
+            return Repository(repodir).Commits.Count();
         }
 
         public void AssertGitRepo(string repodir)
@@ -324,6 +323,12 @@ namespace Sep.Git.Tfs.Test.Integration
             AssertEqual(contents, actual, "Contents of " + path);
         }
 
+        public void AssertNoFileInWorkspace(string repodir, string file)
+        {
+            var path = Path.Combine(Workdir, repodir, file);
+            Assert.False(File.Exists(path), "Expect " + file + " to be absent from " + repodir);
+        }
+
         public void AssertCommitMessage(string repodir, string commitish, string message)
         {
             var commit = Repository(repodir).Lookup<Commit>(commitish);