implement editor override step

features/steps/core.py

@@ -215,6 +215,29 @@ def open_editor_and_enter(context, method, text=""):
 @then("the editor {editor} should have been called")
 def editor_override(context, editor): 
     
+    def _mock_editor(command_and_journal_file): 
+        editor = command_and_journal_file[0]
+        context.tmpfile = command_and_journal_file[-1]
+        print("%s has been launched"%editor)
+        return tmpfile
+    
+    try :
+                # fmt: off
+        # see: https://github.com/psf/black/issues/664
+        with \
+            patch("subprocess.call", side_effect=_mock_editor) as mock_editor, \
+            patch("sys.stdin.isatty", return_value=True), \
+            patch("jrnl.time.parse", side_effect=_mock_time_parse(context)), \
+            patch("jrnl.config.get_config_path", side_effect=lambda: context.config_path), \
+            patch("jrnl.install.get_config_path", side_effect=lambda: context.config_path) \
+        :
+            cli(['--override','{"editor": "%s"}'%editor])
+            context.exit_status = 0
+            context.editor = mock_editor
+            assert mock_editor.assert_called_once_with(editor, context.tmpfile)
+    except SystemExit as e:
+        context.exit_status = e.code
+    
 @then("the editor should have been called")
 @then("the editor should have been called with {num} arguments")
 def count_editor_args(context, num=None):