Add check_case_conflict hook #21
diff --git a/tests/conftest.py b/tests/conftest.py
new file mode 100644
index 0000000..157da6b
--- /dev/null
+++ b/tests/conftest.py
@@ -0,0 +1,13 @@
+from __future__ import absolute_import
+from __future__ import print_function
+from __future__ import unicode_literals
+
+import pytest
+from plumbum import local
+
+
+@pytest.yield_fixture
+def temp_git_dir(tmpdir):
+    git_dir = tmpdir.join('gits').strpath
+    local['git']('init', git_dir)
+    yield git_dir