Isolate command line tests for notebooks from user-level config (#2854)

diff --git a/tests/test_ipynb.py b/tests/test_ipynb.py
index d78a68cd9a024d28f1fd4fc13713e8c7f1bddd87..473047a3b32d63f1ddd80ce9b2b277b09221af60 100644 (file)
--- a/tests/test_ipynb.py
+++ b/tests/test_ipynb.py
@@ -24,6 +24,8 @@ pytest.importorskip("tokenize_rt", reason="tokenize-rt is an optional dependency
 
 JUPYTER_MODE = Mode(is_ipynb=True)
 
+EMPTY_CONFIG = DATA_DIR / "empty_pyproject.toml"
+
 runner = CliRunner()
 
 
@@ -410,6 +412,7 @@ def test_ipynb_diff_with_change() -> None:
         [
             str(DATA_DIR / "notebook_trailing_newline.ipynb"),
             "--diff",
+            f"--config={EMPTY_CONFIG}",
         ],
     )
     expected = "@@ -1,3 +1,3 @@\n %%time\n \n-print('foo')\n" '+print("foo")\n'
@@ -422,6 +425,7 @@ def test_ipynb_diff_with_no_change() -> None:
         [
             str(DATA_DIR / "notebook_without_changes.ipynb"),
             "--diff",
+            f"--config={EMPTY_CONFIG}",
         ],
     )
     expected = "1 file would be left unchanged."
@@ -440,13 +444,17 @@ def test_cache_isnt_written_if_no_jupyter_deps_single(
     monkeypatch.setattr(
         "black.jupyter_dependencies_are_installed", lambda verbose, quiet: False
     )
-    result = runner.invoke(main, [str(tmp_path / "notebook.ipynb")])
+    result = runner.invoke(
+        main, [str(tmp_path / "notebook.ipynb"), f"--config={EMPTY_CONFIG}"]
+    )
     assert "No Python files are present to be formatted. Nothing to do" in result.output
     jupyter_dependencies_are_installed.cache_clear()
     monkeypatch.setattr(
         "black.jupyter_dependencies_are_installed", lambda verbose, quiet: True
     )
-    result = runner.invoke(main, [str(tmp_path / "notebook.ipynb")])
+    result = runner.invoke(
+        main, [str(tmp_path / "notebook.ipynb"), f"--config={EMPTY_CONFIG}"]
+    )
     assert "reformatted" in result.output
 
 
@@ -462,13 +470,13 @@ def test_cache_isnt_written_if_no_jupyter_deps_dir(
     monkeypatch.setattr(
         "black.files.jupyter_dependencies_are_installed", lambda verbose, quiet: False
     )
-    result = runner.invoke(main, [str(tmp_path)])
+    result = runner.invoke(main, [str(tmp_path), f"--config={EMPTY_CONFIG}"])
     assert "No Python files are present to be formatted. Nothing to do" in result.output
     jupyter_dependencies_are_installed.cache_clear()
     monkeypatch.setattr(
         "black.files.jupyter_dependencies_are_installed", lambda verbose, quiet: True
     )
-    result = runner.invoke(main, [str(tmp_path)])
+    result = runner.invoke(main, [str(tmp_path), f"--config={EMPTY_CONFIG}"])
     assert "reformatted" in result.output
 
 
@@ -483,6 +491,7 @@ def test_ipynb_flag(tmp_path: pathlib.Path) -> None:
             str(tmp_nb),
             "--diff",
             "--ipynb",
+            f"--config={EMPTY_CONFIG}",
         ],
     )
     expected = "@@ -1,3 +1,3 @@\n %%time\n \n-print('foo')\n" '+print("foo")\n'
@@ -498,6 +507,7 @@ def test_ipynb_and_pyi_flags() -> None:
             "--pyi",
             "--ipynb",
             "--diff",
+            f"--config={EMPTY_CONFIG}",
         ],
     )
     assert isinstance(result.exception, SystemExit)