aider: Added a test which runs main with --no-auto-commits and patches Coder with a mock to see that it gets called with auto_commits=False.

# Context:
USER: add a test which runs main with --no-auto-commits and patches Coder with a mock to see that it gets called with auto_commits=False
ASSISTANT: To add the test, you need to modify the `tests/test_main.py` file. Here's the change:

```python
tests/test_main.py
<<<<<<< ORIGINAL
class TestMain(TestCase):
    def test_main_with_empty_dir_no_files_on_command(self):
        with tempfile.TemporaryDirectory() as temp_dir:
            os.chdir(temp_dir)
            pipe_input = create_input(StringIO(""))
            main([], input=pipe_input, output=DummyOutput())
            pipe_input.close()

    def test_main_with_empty_dir_new_file(self):
=======
class TestMain(TestCase):
    def test_main_with_empty_dir_no_files_on_command(self):
        with tempfile.TemporaryDirectory() as temp_dir:
            os.chdir(temp_dir)
            pipe_input = create_input(StringIO(""))
            main([], input=pipe_input, output=DummyOutput())
            pipe_input.close()

    def test_main_with_no_auto_commits(self):
        with tempfile.TemporaryDirectory() as temp_dir:
            os.chdir(temp_dir)
            pipe_input = create_input(StringIO(""))
            with unittest.mock.patch("aider.main.Coder") as MockCoder:
                main(["--no-auto-commits"], input=pipe_input, output=DummyOutput())
                MockCoder.assert_called_with(
                    unittest.mock.ANY,
                    main_model=unittest.mock.ANY,
                    fnames=unittest.mock.ANY,
                    pretty=unittest.mock.ANY,
                    show_diffs=unittest.mock.ANY,
                    auto_commits=False,
                    dry_run=unittest.mock.ANY,
                    use_ctags=unittest.mock.ANY,
                    verbose=unittest.mock.ANY,
                )
            pipe_input.close()

    def test_main_with_empty_dir_new_file(self):
>>>>>>> UPDATED
```

This new test case `test_main_with_no_auto_commits` creates a temporary directory, changes the current working directory to it, and then runs the `main` function with the `--no-auto-commits` flag. It also patches the `Coder` class with a mock to check if it gets called with `auto_commits=False`.

tests/test_main.py

@@ -18,6 +18,25 @@ class TestMain(TestCase):
             main([], input=pipe_input, output=DummyOutput())
             pipe_input.close()
 
+    def test_main_with_no_auto_commits(self):
+        with tempfile.TemporaryDirectory() as temp_dir:
+            os.chdir(temp_dir)
+            pipe_input = create_input(StringIO(""))
+            with unittest.mock.patch("aider.main.Coder") as MockCoder:
+                main(["--no-auto-commits"], input=pipe_input, output=DummyOutput())
+                MockCoder.assert_called_with(
+                    unittest.mock.ANY,
+                    main_model=unittest.mock.ANY,
+                    fnames=unittest.mock.ANY,
+                    pretty=unittest.mock.ANY,
+                    show_diffs=unittest.mock.ANY,
+                    auto_commits=False,
+                    dry_run=unittest.mock.ANY,
+                    use_ctags=unittest.mock.ANY,
+                    verbose=unittest.mock.ANY,
+                )
+            pipe_input.close()
+
     def test_main_with_empty_dir_new_file(self):
         with tempfile.TemporaryDirectory() as temp_dir:
             os.chdir(temp_dir)