aider: Refactored test_main_with_empty_dir_new_file to use @patch decorator to mock get_commit_message method.

# Aider chat conversation:

USER: @patch("aider.repo.AiderRepo.get_commit_message") is not patching it

ASSISTANT: It seems like you're having trouble with the `@patch` decorator not correctly patching the `get_commit_message` method of the `AiderRepo` class in your tests.

To help you with this, I need to understand the context better. Could you please provide more details about the issue? Are you getting any error messages? If so, could you share them?

USER: in `test_main_with_empty_dir_new_file` i don't want `get_commit_message` to be actually called. just to return a mock value

ASSISTANT: The `@patch` decorator from the `unittest.mock` module is used to replace the actual method with a mock method during testing. If `get_commit_message` is still being called, it might be due to the incorrect import path in the `@patch` decorator.

In your case, the `@patch` decorator should be used as follows:

```python
@patch("aider.repo.AiderRepo.get_commit_message", return_value="commit message!")
```

This will replace the `get_commit_message` method with a mock method that always returns "commit message!".

Here is the updated `test_main_with_empty_dir_new_file` method:

```python
tests/test_main.py
<<<<<<< ORIGINAL
    @patch("aider.repo.AiderRepo.get_commit_message")
    def test_main_with_empty_dir_new_file(self, get_commit_message):
        get_commit_message.return_value = "commit message!"
        main(["foo.txt", "--yes","--no-git"], input=DummyInput(), output=DummyOutput())
        self.assertTrue(os.path.exists("foo.txt"))
=======
    @patch("aider.repo.AiderRepo.get_commit_message", return_value="commit message!")
    def test_main_with_empty_dir_new_file(self, get_commit_message):
        main(["foo.txt", "--yes","--no-git"], input=DummyInput(), output=DummyOutput())
        self.assertTrue(os.path.exists("foo.txt"))
>>>>>>> UPDATED
```

This change should ensure that the actual `get_commit_message` method is not called during the test. Instead, the mock method will be used, returning the specified mock value.

aider/main.py

@@ -440,8 +440,6 @@ def main(args=None, input=None, output=None):
             io.tool_output(repo_map)
         return
 
-    coder.dirty_commit()
-
     if args.apply:
         content = io.read_text(args.apply)
         if content is None:
@@ -450,6 +448,9 @@ def main(args=None, input=None, output=None):
         return
 
     io.tool_output("Use /help to see in-chat commands, run with --help to see cmd line args")
+
+    coder.dirty_commit()
+
     if args.message:
         io.tool_output()
         coder.run(with_message=args.message)

aider/repo.py

@@ -129,6 +129,15 @@ class AiderRepo:
         return commit_message
 
     def get_diffs(self, pretty, *args):
+        try:
+            commits = self.repo.iter_commits(self.repo.active_branch)
+            current_branch_has_commits = any(commits)
+        except git.exc.GitCommandError:
+            current_branch_has_commits = False
+
+        if not current_branch_has_commits:
+            return ""
+
         if pretty:
             args = ["--color"] + list(args)
         if not args:
@@ -138,14 +147,6 @@ class AiderRepo:
         return diffs
 
     def show_diffs(self, pretty):
-        try:
-            current_branch_has_commits = any(self.repo.iter_commits(self.repo.active_branch))
-        except git.exc.GitCommandError:
-            current_branch_has_commits = False
-
-        if not current_branch_has_commits:
-            return ""
-
         diffs = self.get_diffs(pretty)
         print(diffs)
 

tests/test_main.py

@@ -34,8 +34,9 @@ class TestMain(TestCase):
     def test_main_with_empty_dir_no_files_on_command(self):
         main(["--no-git"], input=DummyInput(), output=DummyOutput())
 
-    def test_main_with_empty_dir_new_file(self):
+    @patch("aider.repo.AiderRepo.get_commit_message", return_value="commit message!")
-        main(["foo.txt", "--yes"], input=DummyInput(), output=DummyOutput())
+    def test_main_with_empty_dir_new_file(self, get_commit_message):
+        main(["foo.txt", "--yes","--no-git"], input=DummyInput(), output=DummyOutput())
         self.assertTrue(os.path.exists("foo.txt"))
 
     def test_main_with_empty_git_dir_new_file(self):