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Fix download badge link (#3853)
[etc/vim.git] / tests / test_ipynb.py
diff --git a/tests/test_ipynb.py b/tests/test_ipynb.py
index 141e865815a5c9f84aed85cf46e411cce6070879..59897190304e7595a82a732273058f33b1407e46 100644 (file)
--- a/tests/test_ipynb.py
+++ b/tests/test_ipynb.py
@@ -1,26 +1,35 @@
+import contextlib
+import pathlib
 import re
 import re
+from contextlib import ExitStack as does_not_raise
+from dataclasses import replace
+from typing import ContextManager
 
 
+import pytest
+from _pytest.monkeypatch import MonkeyPatch
 from click.testing import CliRunner
 from click.testing import CliRunner
-from black.handle_ipynb_magics import jupyter_dependencies_are_installed
+
 from black import (
 from black import (
-    main,
+    Mode,
     NothingChanged,
     format_cell,
     format_file_contents,
     format_file_in_place,
     NothingChanged,
     format_cell,
     format_file_contents,
     format_file_in_place,
+    main,
 )
 )
-import pytest
-from black import Mode
-from _pytest.monkeypatch import MonkeyPatch
-from py.path import local
-from tests.util import DATA_DIR
+from black.handle_ipynb_magics import jupyter_dependencies_are_installed
+from tests.util import DATA_DIR, get_case_path, read_jupyter_notebook
 
 
+with contextlib.suppress(ModuleNotFoundError):
+    import IPython
 pytestmark = pytest.mark.jupyter
 pytest.importorskip("IPython", reason="IPython is an optional dependency")
 pytest.importorskip("tokenize_rt", reason="tokenize-rt is an optional dependency")
 
 JUPYTER_MODE = Mode(is_ipynb=True)
 
 pytestmark = pytest.mark.jupyter
 pytest.importorskip("IPython", reason="IPython is an optional dependency")
 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()
 
 
 runner = CliRunner()
 
 
@@ -63,9 +72,19 @@ def test_trailing_semicolon_noop() -> None:
         format_cell(src, fast=True, mode=JUPYTER_MODE)
 
 
         format_cell(src, fast=True, mode=JUPYTER_MODE)
 
 
-def test_cell_magic() -> None:
+@pytest.mark.parametrize(
+    "mode",
+    [
+        pytest.param(JUPYTER_MODE, id="default mode"),
+        pytest.param(
+            replace(JUPYTER_MODE, python_cell_magics={"cust1", "cust2"}),
+            id="custom cell magics mode",
+        ),
+    ],
+)
+def test_cell_magic(mode: Mode) -> None:
     src = "%%time\nfoo =bar"
     src = "%%time\nfoo =bar"
-    result = format_cell(src, fast=True, mode=JUPYTER_MODE)
+    result = format_cell(src, fast=True, mode=mode)
     expected = "%%time\nfoo = bar"
     assert result == expected
 
     expected = "%%time\nfoo = bar"
     assert result == expected
 
@@ -76,6 +95,16 @@ def test_cell_magic_noop() -> None:
         format_cell(src, fast=True, mode=JUPYTER_MODE)
 
 
         format_cell(src, fast=True, mode=JUPYTER_MODE)
 
 
+@pytest.mark.parametrize(
+    "mode",
+    [
+        pytest.param(JUPYTER_MODE, id="default mode"),
+        pytest.param(
+            replace(JUPYTER_MODE, python_cell_magics={"cust1", "cust2"}),
+            id="custom cell magics mode",
+        ),
+    ],
+)
 @pytest.mark.parametrize(
     "src, expected",
     (
 @pytest.mark.parametrize(
     "src, expected",
     (
@@ -96,8 +125,8 @@ def test_cell_magic_noop() -> None:
         pytest.param("env =  %env", "env = %env", id="Assignment to magic"),
     ),
 )
         pytest.param("env =  %env", "env = %env", id="Assignment to magic"),
     ),
 )
-def test_magic(src: str, expected: str) -> None:
-    result = format_cell(src, fast=True, mode=JUPYTER_MODE)
+def test_magic(src: str, expected: str, mode: Mode) -> None:
+    result = format_cell(src, fast=True, mode=mode)
     assert result == expected
 
 
     assert result == expected
 
 
@@ -114,10 +143,15 @@ def test_non_python_magics(src: str) -> None:
         format_cell(src, fast=True, mode=JUPYTER_MODE)
 
 
         format_cell(src, fast=True, mode=JUPYTER_MODE)
 
 
+@pytest.mark.skipif(
+    IPython.version_info < (8, 3),
+    reason="Change in how TransformerManager transforms this input",
+)
 def test_set_input() -> None:
     src = "a = b??"
 def test_set_input() -> None:
     src = "a = b??"
-    with pytest.raises(NothingChanged):
-        format_cell(src, fast=True, mode=JUPYTER_MODE)
+    expected = "??b"
+    result = format_cell(src, fast=True, mode=JUPYTER_MODE)
+    assert result == expected
 
 
 def test_input_already_contains_transformed_magic() -> None:
 
 
 def test_input_already_contains_transformed_magic() -> None:
@@ -139,6 +173,41 @@ def test_cell_magic_with_magic() -> None:
     assert result == expected
 
 
     assert result == expected
 
 
+@pytest.mark.parametrize(
+    "mode, expected_output, expectation",
+    [
+        pytest.param(
+            JUPYTER_MODE,
+            "%%custom_python_magic -n1 -n2\nx=2",
+            pytest.raises(NothingChanged),
+            id="No change when cell magic not registered",
+        ),
+        pytest.param(
+            replace(JUPYTER_MODE, python_cell_magics={"cust1", "cust2"}),
+            "%%custom_python_magic -n1 -n2\nx=2",
+            pytest.raises(NothingChanged),
+            id="No change when other cell magics registered",
+        ),
+        pytest.param(
+            replace(JUPYTER_MODE, python_cell_magics={"custom_python_magic", "cust1"}),
+            "%%custom_python_magic -n1 -n2\nx = 2",
+            does_not_raise(),
+            id="Correctly change when cell magic registered",
+        ),
+    ],
+)
+def test_cell_magic_with_custom_python_magic(
+    mode: Mode, expected_output: str, expectation: ContextManager[object]
+) -> None:
+    with expectation:
+        result = format_cell(
+            "%%custom_python_magic -n1 -n2\nx=2",
+            fast=True,
+            mode=mode,
+        )
+        assert result == expected_output
+
+
 def test_cell_magic_nested() -> None:
     src = "%%time\n%%time\n2+2"
     result = format_cell(src, fast=True, mode=JUPYTER_MODE)
 def test_cell_magic_nested() -> None:
     src = "%%time\n%%time\n2+2"
     result = format_cell(src, fast=True, mode=JUPYTER_MODE)
@@ -184,9 +253,7 @@ def test_empty_cell() -> None:
 
 
 def test_entire_notebook_empty_metadata() -> None:
 
 
 def test_entire_notebook_empty_metadata() -> None:
-    with open(DATA_DIR / "notebook_empty_metadata.ipynb", "rb") as fd:
-        content_bytes = fd.read()
-    content = content_bytes.decode()
+    content = read_jupyter_notebook("jupyter", "notebook_empty_metadata")
     result = format_file_contents(content, fast=True, mode=JUPYTER_MODE)
     expected = (
         "{\n"
     result = format_file_contents(content, fast=True, mode=JUPYTER_MODE)
     expected = (
         "{\n"
@@ -221,9 +288,7 @@ def test_entire_notebook_empty_metadata() -> None:
 
 
 def test_entire_notebook_trailing_newline() -> None:
 
 
 def test_entire_notebook_trailing_newline() -> None:
-    with open(DATA_DIR / "notebook_trailing_newline.ipynb", "rb") as fd:
-        content_bytes = fd.read()
-    content = content_bytes.decode()
+    content = read_jupyter_notebook("jupyter", "notebook_trailing_newline")
     result = format_file_contents(content, fast=True, mode=JUPYTER_MODE)
     expected = (
         "{\n"
     result = format_file_contents(content, fast=True, mode=JUPYTER_MODE)
     expected = (
         "{\n"
@@ -270,9 +335,7 @@ def test_entire_notebook_trailing_newline() -> None:
 
 
 def test_entire_notebook_no_trailing_newline() -> None:
 
 
 def test_entire_notebook_no_trailing_newline() -> None:
-    with open(DATA_DIR / "notebook_no_trailing_newline.ipynb", "rb") as fd:
-        content_bytes = fd.read()
-    content = content_bytes.decode()
+    content = read_jupyter_notebook("jupyter", "notebook_no_trailing_newline")
     result = format_file_contents(content, fast=True, mode=JUPYTER_MODE)
     expected = (
         "{\n"
     result = format_file_contents(content, fast=True, mode=JUPYTER_MODE)
     expected = (
         "{\n"
@@ -319,17 +382,14 @@ def test_entire_notebook_no_trailing_newline() -> None:
 
 
 def test_entire_notebook_without_changes() -> None:
 
 
 def test_entire_notebook_without_changes() -> None:
-    with open(DATA_DIR / "notebook_without_changes.ipynb", "rb") as fd:
-        content_bytes = fd.read()
-    content = content_bytes.decode()
+    content = read_jupyter_notebook("jupyter", "notebook_without_changes")
     with pytest.raises(NothingChanged):
         format_file_contents(content, fast=True, mode=JUPYTER_MODE)
 
 
 def test_non_python_notebook() -> None:
     with pytest.raises(NothingChanged):
         format_file_contents(content, fast=True, mode=JUPYTER_MODE)
 
 
 def test_non_python_notebook() -> None:
-    with open(DATA_DIR / "non_python_notebook.ipynb", "rb") as fd:
-        content_bytes = fd.read()
-    content = content_bytes.decode()
+    content = read_jupyter_notebook("jupyter", "non_python_notebook")
+
     with pytest.raises(NothingChanged):
         format_file_contents(content, fast=True, mode=JUPYTER_MODE)
 
     with pytest.raises(NothingChanged):
         format_file_contents(content, fast=True, mode=JUPYTER_MODE)
 
@@ -340,7 +400,7 @@ def test_empty_string() -> None:
 
 
 def test_unparseable_notebook() -> None:
 
 
 def test_unparseable_notebook() -> None:
-    path = DATA_DIR / "notebook_which_cant_be_parsed.ipynb"
+    path = get_case_path("jupyter", "notebook_which_cant_be_parsed.ipynb")
     msg = rf"File '{re.escape(str(path))}' cannot be parsed as valid Jupyter notebook\."
     with pytest.raises(ValueError, match=msg):
         format_file_in_place(path, fast=True, mode=JUPYTER_MODE)
     msg = rf"File '{re.escape(str(path))}' cannot be parsed as valid Jupyter notebook\."
     with pytest.raises(ValueError, match=msg):
         format_file_in_place(path, fast=True, mode=JUPYTER_MODE)
@@ -350,11 +410,12 @@ def test_ipynb_diff_with_change() -> None:
     result = runner.invoke(
         main,
         [
     result = runner.invoke(
         main,
         [
-            str(DATA_DIR / "notebook_trailing_newline.ipynb"),
+            str(get_case_path("jupyter", "notebook_trailing_newline.ipynb")),
             "--diff",
             "--diff",
+            f"--config={EMPTY_CONFIG}",
         ],
     )
         ],
     )
-    expected = "@@ -1,3 +1,3 @@\n %%time\n \n-print('foo')\n" '+print("foo")\n'
+    expected = "@@ -1,3 +1,3 @@\n %%time\n \n-print('foo')\n+print(\"foo\")\n"
     assert expected in result.output
 
 
     assert expected in result.output
 
 
@@ -362,8 +423,9 @@ def test_ipynb_diff_with_no_change() -> None:
     result = runner.invoke(
         main,
         [
     result = runner.invoke(
         main,
         [
-            str(DATA_DIR / "notebook_without_changes.ipynb"),
+            str(get_case_path("jupyter", "notebook_without_changes.ipynb")),
             "--diff",
             "--diff",
+            f"--config={EMPTY_CONFIG}",
         ],
     )
     expected = "1 file would be left unchanged."
         ],
     )
     expected = "1 file would be left unchanged."
@@ -371,68 +433,66 @@ def test_ipynb_diff_with_no_change() -> None:
 
 
 def test_cache_isnt_written_if_no_jupyter_deps_single(
 
 
 def test_cache_isnt_written_if_no_jupyter_deps_single(
-    monkeypatch: MonkeyPatch, tmpdir: local
+    monkeypatch: MonkeyPatch, tmp_path: pathlib.Path
 ) -> None:
     # Check that the cache isn't written to if Jupyter dependencies aren't installed.
     jupyter_dependencies_are_installed.cache_clear()
 ) -> None:
     # Check that the cache isn't written to if Jupyter dependencies aren't installed.
     jupyter_dependencies_are_installed.cache_clear()
-    nb = DATA_DIR / "notebook_trailing_newline.ipynb"
-    tmp_nb = tmpdir / "notebook.ipynb"
-    with open(nb) as src, open(tmp_nb, "w") as dst:
-        dst.write(src.read())
-    monkeypatch.setattr(
-        "black.jupyter_dependencies_are_installed", lambda verbose, quiet: False
+    nb = get_case_path("jupyter", "notebook_trailing_newline.ipynb")
+    tmp_nb = tmp_path / "notebook.ipynb"
+    tmp_nb.write_bytes(nb.read_bytes())
+    monkeypatch.setattr("black.jupyter_dependencies_are_installed", lambda warn: False)
+    result = runner.invoke(
+        main, [str(tmp_path / "notebook.ipynb"), f"--config={EMPTY_CONFIG}"]
     )
     )
-    result = runner.invoke(main, [str(tmpdir / "notebook.ipynb")])
     assert "No Python files are present to be formatted. Nothing to do" in result.output
     jupyter_dependencies_are_installed.cache_clear()
     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
+    monkeypatch.setattr("black.jupyter_dependencies_are_installed", lambda warn: True)
+    result = runner.invoke(
+        main, [str(tmp_path / "notebook.ipynb"), f"--config={EMPTY_CONFIG}"]
     )
     )
-    result = runner.invoke(main, [str(tmpdir / "notebook.ipynb")])
     assert "reformatted" in result.output
 
 
 def test_cache_isnt_written_if_no_jupyter_deps_dir(
     assert "reformatted" in result.output
 
 
 def test_cache_isnt_written_if_no_jupyter_deps_dir(
-    monkeypatch: MonkeyPatch, tmpdir: local
+    monkeypatch: MonkeyPatch, tmp_path: pathlib.Path
 ) -> None:
     # Check that the cache isn't written to if Jupyter dependencies aren't installed.
     jupyter_dependencies_are_installed.cache_clear()
 ) -> None:
     # Check that the cache isn't written to if Jupyter dependencies aren't installed.
     jupyter_dependencies_are_installed.cache_clear()
-    nb = DATA_DIR / "notebook_trailing_newline.ipynb"
-    tmp_nb = tmpdir / "notebook.ipynb"
-    with open(nb) as src, open(tmp_nb, "w") as dst:
-        dst.write(src.read())
+    nb = get_case_path("jupyter", "notebook_trailing_newline.ipynb")
+    tmp_nb = tmp_path / "notebook.ipynb"
+    tmp_nb.write_bytes(nb.read_bytes())
     monkeypatch.setattr(
     monkeypatch.setattr(
-        "black.files.jupyter_dependencies_are_installed", lambda verbose, quiet: False
+        "black.files.jupyter_dependencies_are_installed", lambda warn: False
     )
     )
-    result = runner.invoke(main, [str(tmpdir)])
+    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(
     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
+        "black.files.jupyter_dependencies_are_installed", lambda warn: True
     )
     )
-    result = runner.invoke(main, [str(tmpdir)])
+    result = runner.invoke(main, [str(tmp_path), f"--config={EMPTY_CONFIG}"])
     assert "reformatted" in result.output
 
 
     assert "reformatted" in result.output
 
 
-def test_ipynb_flag(tmpdir: local) -> None:
-    nb = DATA_DIR / "notebook_trailing_newline.ipynb"
-    tmp_nb = tmpdir / "notebook.a_file_extension_which_is_definitely_not_ipynb"
-    with open(nb) as src, open(tmp_nb, "w") as dst:
-        dst.write(src.read())
+def test_ipynb_flag(tmp_path: pathlib.Path) -> None:
+    nb = get_case_path("jupyter", "notebook_trailing_newline.ipynb")
+    tmp_nb = tmp_path / "notebook.a_file_extension_which_is_definitely_not_ipynb"
+    tmp_nb.write_bytes(nb.read_bytes())
     result = runner.invoke(
         main,
         [
             str(tmp_nb),
             "--diff",
             "--ipynb",
     result = runner.invoke(
         main,
         [
             str(tmp_nb),
             "--diff",
             "--ipynb",
+            f"--config={EMPTY_CONFIG}",
         ],
     )
         ],
     )
-    expected = "@@ -1,3 +1,3 @@\n %%time\n \n-print('foo')\n" '+print("foo")\n'
+    expected = "@@ -1,3 +1,3 @@\n %%time\n \n-print('foo')\n+print(\"foo\")\n"
     assert expected in result.output
 
 
 def test_ipynb_and_pyi_flags() -> None:
     assert expected in result.output
 
 
 def test_ipynb_and_pyi_flags() -> None:
-    nb = DATA_DIR / "notebook_trailing_newline.ipynb"
+    nb = get_case_path("jupyter", "notebook_trailing_newline.ipynb")
     result = runner.invoke(
         main,
         [
     result = runner.invoke(
         main,
         [
@@ -440,6 +500,7 @@ def test_ipynb_and_pyi_flags() -> None:
             "--pyi",
             "--ipynb",
             "--diff",
             "--pyi",
             "--ipynb",
             "--diff",
+            f"--config={EMPTY_CONFIG}",
         ],
     )
     assert isinstance(result.exception, SystemExit)
         ],
     )
     assert isinstance(result.exception, SystemExit)
vim configuration

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