+from dataclasses import replace
import pathlib
+import re
+from contextlib import ExitStack as does_not_raise
+from typing import ContextManager
+
from click.testing import CliRunner
from black.handle_ipynb_magics import jupyter_dependencies_are_installed
from black import (
format_file_contents,
format_file_in_place,
)
-import os
import pytest
from black import Mode
from _pytest.monkeypatch import MonkeyPatch
-from py.path import local
+from tests.util import DATA_DIR
pytestmark = pytest.mark.jupyter
pytest.importorskip("IPython", reason="IPython is an optional dependency")
JUPYTER_MODE = Mode(is_ipynb=True)
+EMPTY_CONFIG = DATA_DIR / "empty_pyproject.toml"
+
runner = CliRunner()
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", "cust1"}),
+ id="custom cell magics mode",
+ ),
+ ],
+)
+def test_cell_magic(mode: Mode) -> None:
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
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", "cust1"}),
+ id="custom cell magics mode",
+ ),
+ ],
+)
@pytest.mark.parametrize(
"src, expected",
(
id="Line magic with argument",
),
pytest.param("%time\n'foo'", '%time\n"foo"', id="Line magic without argument"),
+ pytest.param(
+ "env = %env var", "env = %env var", id="Assignment to environment variable"
+ ),
+ 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
(
"%%bash\n2+2",
"%%html --isolated\n2+2",
+ "%%writefile e.txt\n meh\n meh",
),
)
def test_non_python_magics(src: str) -> None:
def test_cell_magic_with_magic() -> None:
- src = "%%t -n1\nls =!ls"
+ src = "%%timeit -n1\nls =!ls"
result = format_cell(src, fast=True, mode=JUPYTER_MODE)
- expected = "%%t -n1\nls = !ls"
+ expected = "%%timeit -n1\nls = !ls"
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", "cust1"}),
+ "%%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_entire_notebook_empty_metadata() -> None:
- with open(
- os.path.join("tests", "data", "notebook_empty_metadata.ipynb"), "rb"
- ) as fd:
+ with open(DATA_DIR / "notebook_empty_metadata.ipynb", "rb") as fd:
content_bytes = fd.read()
content = content_bytes.decode()
result = format_file_contents(content, fast=True, mode=JUPYTER_MODE)
def test_entire_notebook_trailing_newline() -> None:
- with open(
- os.path.join("tests", "data", "notebook_trailing_newline.ipynb"), "rb"
- ) as fd:
+ with open(DATA_DIR / "notebook_trailing_newline.ipynb", "rb") as fd:
content_bytes = fd.read()
content = content_bytes.decode()
result = format_file_contents(content, fast=True, mode=JUPYTER_MODE)
def test_entire_notebook_no_trailing_newline() -> None:
- with open(
- os.path.join("tests", "data", "notebook_no_trailing_newline.ipynb"), "rb"
- ) as fd:
+ with open(DATA_DIR / "notebook_no_trailing_newline.ipynb", "rb") as fd:
content_bytes = fd.read()
content = content_bytes.decode()
result = format_file_contents(content, fast=True, mode=JUPYTER_MODE)
def test_entire_notebook_without_changes() -> None:
- with open(
- os.path.join("tests", "data", "notebook_without_changes.ipynb"), "rb"
- ) as fd:
+ with open(DATA_DIR / "notebook_without_changes.ipynb", "rb") as fd:
content_bytes = fd.read()
content = content_bytes.decode()
with pytest.raises(NothingChanged):
def test_non_python_notebook() -> None:
- with open(os.path.join("tests", "data", "non_python_notebook.ipynb"), "rb") as fd:
+ with open(DATA_DIR / "non_python_notebook.ipynb", "rb") as fd:
content_bytes = fd.read()
content = content_bytes.decode()
with pytest.raises(NothingChanged):
def test_unparseable_notebook() -> None:
- msg = (
- r"File 'tests[/\\]data[/\\]notebook_which_cant_be_parsed\.ipynb' "
- r"cannot be parsed as valid Jupyter notebook\."
- )
+ path = DATA_DIR / "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(
- pathlib.Path("tests") / "data/notebook_which_cant_be_parsed.ipynb",
- fast=True,
- mode=JUPYTER_MODE,
- )
+ format_file_in_place(path, fast=True, mode=JUPYTER_MODE)
def test_ipynb_diff_with_change() -> None:
result = runner.invoke(
main,
[
- os.path.join("tests", "data", "notebook_trailing_newline.ipynb"),
+ 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'
+ expected = "@@ -1,3 +1,3 @@\n %%time\n \n-print('foo')\n+print(\"foo\")\n"
assert expected in result.output
result = runner.invoke(
main,
[
- os.path.join("tests", "data", "notebook_without_changes.ipynb"),
+ str(DATA_DIR / "notebook_without_changes.ipynb"),
"--diff",
+ f"--config={EMPTY_CONFIG}",
],
)
expected = "1 file would be left unchanged."
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()
- nb = os.path.join("tests", "data", "notebook_trailing_newline.ipynb")
- tmp_nb = tmpdir / "notebook.ipynb"
+ nb = DATA_DIR / "notebook_trailing_newline.ipynb"
+ tmp_nb = tmp_path / "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
)
- result = runner.invoke(main, [str(tmpdir / "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(tmpdir / "notebook.ipynb")])
+ result = runner.invoke(
+ main, [str(tmp_path / "notebook.ipynb"), f"--config={EMPTY_CONFIG}"]
+ )
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()
- nb = os.path.join("tests", "data", "notebook_trailing_newline.ipynb")
- tmp_nb = tmpdir / "notebook.ipynb"
+ nb = DATA_DIR / "notebook_trailing_newline.ipynb"
+ tmp_nb = tmp_path / "notebook.ipynb"
with open(nb) as src, open(tmp_nb, "w") as dst:
dst.write(src.read())
monkeypatch.setattr(
"black.files.jupyter_dependencies_are_installed", lambda verbose, quiet: 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(
"black.files.jupyter_dependencies_are_installed", lambda verbose, quiet: True
)
- result = runner.invoke(main, [str(tmpdir)])
+ result = runner.invoke(main, [str(tmp_path), f"--config={EMPTY_CONFIG}"])
assert "reformatted" in result.output
-def test_ipynb_flag(tmpdir: local) -> None:
- nb = os.path.join("tests", "data", "notebook_trailing_newline.ipynb")
- tmp_nb = tmpdir / "notebook.a_file_extension_which_is_definitely_not_ipynb"
+def test_ipynb_flag(tmp_path: pathlib.Path) -> None:
+ nb = DATA_DIR / "notebook_trailing_newline.ipynb"
+ tmp_nb = tmp_path / "notebook.a_file_extension_which_is_definitely_not_ipynb"
with open(nb) as src, open(tmp_nb, "w") as dst:
dst.write(src.read())
result = runner.invoke(
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:
- nb = os.path.join("tests", "data", "notebook_trailing_newline.ipynb")
+ nb = DATA_DIR / "notebook_trailing_newline.ipynb"
result = runner.invoke(
main,
[
- nb,
+ str(nb),
"--pyi",
"--ipynb",
"--diff",
+ f"--config={EMPTY_CONFIG}",
],
)
assert isinstance(result.exception, SystemExit)
expected = "Cannot pass both `pyi` and `ipynb` flags!\n"
assert result.output == expected
+
+
+def test_unable_to_replace_magics(monkeypatch: MonkeyPatch) -> None:
+ src = "%%time\na = 'foo'"
+ monkeypatch.setattr("black.handle_ipynb_magics.TOKEN_HEX", lambda _: "foo")
+ with pytest.raises(
+ AssertionError, match="Black was not able to replace IPython magic"
+ ):
+ format_cell(src, fast=True, mode=JUPYTER_MODE)
projects / etc / vim.git / blobdiff