Test worktree support

Author: RickyDaMa

tests/test_utilities.py

@@ -2,6 +2,7 @@
 # -*- coding: utf-8 -*-
 
 import os
+import subprocess
 
 import pytest
 
@@ -56,6 +57,27 @@ def test_utilities_get_gitrootpath_function_returns_proper_path_three_levels_up(
     assert os.path.isdir(gitdir_path) is True
 
 
+def test_utilities_get_gitrootpath_function_returns_proper_path_from_worktree():
+    subprocess.check_call([
+        "git",
+        "worktree",
+        "add",
+        "--detach",
+        "/tmp/font-v",
+        "HEAD^"
+    ])
+    filepath = "/tmp/font-v/README.md"
+    gitdir_path = get_git_root_path(filepath)
+    assert os.path.basename(gitdir_path) == "font-v"
+    assert os.path.isdir(gitdir_path) is True
+    subprocess.call([
+        "git",
+        "worktree",
+        "remove",
+        "/tmp/font-v",
+    ])
+
+
 def test_utilities_get_gitrootpath_function_raises_ioerror_six_levels_up():
     with pytest.raises(IOError):
         filepath = "tests/testfiles/deepdir/deepdir2/deepdir3/deepdir4/test.txt"