test: Fix push/pull tests

Author: ktaletsk

jupyterlab_git/tests/test_pushpull.py

@@ -23,7 +23,7 @@ def test_git_pull_fail(mock_subproc_popen):
     # Then
     mock_subproc_popen.assert_has_calls([
         call(
-            ['git', 'pull', '--no-commit'],
+            ['git pull --no-commit'],
             stdout=PIPE,
             stderr=PIPE,
             cwd='/bin/test_curr_path',
@@ -52,7 +52,7 @@ def test_git_pull_success(mock_subproc_popen):
     # Then
     mock_subproc_popen.assert_has_calls([
         call(
-            ['git', 'pull', '--no-commit'],
+            ['git pull --no-commit'],
             stdout=PIPE,
             stderr=PIPE,
             cwd='/bin/test_curr_path',
@@ -81,7 +81,7 @@ def test_git_push_fail(mock_subproc_popen):
     # Then
     mock_subproc_popen.assert_has_calls([
         call(
-            ['git', 'push', 'test_origin', 'HEAD:test_master'],
+            ['git push test_origin HEAD:test_master'],
             stdout=PIPE,
             stderr=PIPE,
             cwd='/bin/test_curr_path',
@@ -110,7 +110,7 @@ def test_git_push_success(mock_subproc_popen):
     # Then
     mock_subproc_popen.assert_has_calls([
         call(
-            ['git', 'push', '.', 'HEAD:test_master'],
+            ['git push . HEAD:test_master'],
             stdout=PIPE,
             stderr=PIPE,
             cwd='/bin/test_curr_path',