diff --git a/tests/check_added_large_files_test.py b/tests/check_added_large_files_test.py
index b72a315..b49f118 100644
--- a/tests/check_added_large_files_test.py
+++ b/tests/check_added_large_files_test.py
@@ -1,35 +1,35 @@
 from __future__ import absolute_import
 from __future__ import unicode_literals
 
-from plumbum import local
-
 from pre_commit_hooks.check_added_large_files import find_large_added_files
 from pre_commit_hooks.check_added_large_files import main
+from pre_commit_hooks.util import cmd_output
+from testing.util import cwd
 from testing.util import write_file
 
 
 def test_nothing_added(temp_git_dir):
-    with local.cwd(temp_git_dir):
+    with cwd(temp_git_dir):
         assert find_large_added_files(['f.py'], 0) == 0
 
 
 def test_adding_something(temp_git_dir):
-    with local.cwd(temp_git_dir):
+    with cwd(temp_git_dir):
         write_file('f.py', "print('hello world')")
-        local['git']('add', 'f.py')
+        cmd_output('git', 'add', 'f.py')
 
         # Should fail with max size of 0
         assert find_large_added_files(['f.py'], 0) == 1
 
 
 def test_add_something_giant(temp_git_dir):
-    with local.cwd(temp_git_dir):
+    with cwd(temp_git_dir):
         write_file('f.py', 'a' * 10000)
 
         # Should not fail when not added
         assert find_large_added_files(['f.py'], 0) == 0
 
-        local['git']('add', 'f.py')
+        cmd_output('git', 'add', 'f.py')
 
         # Should fail with strict bound
         assert find_large_added_files(['f.py'], 0) == 1
@@ -42,20 +42,20 @@
 
 
 def test_added_file_not_in_pre_commits_list(temp_git_dir):
-    with local.cwd(temp_git_dir):
+    with cwd(temp_git_dir):
         write_file('f.py', "print('hello world')")
-        local['git']('add', 'f.py')
+        cmd_output('git', 'add', 'f.py')
 
         # Should pass even with a size of 0
         assert find_large_added_files(['g.py'], 0) == 0
 
 
 def test_integration(temp_git_dir):
-    with local.cwd(temp_git_dir):
+    with cwd(temp_git_dir):
         assert main(argv=[]) == 0
 
         write_file('f.py', 'a' * 10000)
-        local['git']('add', 'f.py')
+        cmd_output('git', 'add', 'f.py')
 
         # Should not fail with default
         assert main(argv=['f.py']) == 0