def test_pylint_works(capsys: "CaptureFixture") -> None:
"""
Check pylint works. Check all the warnings raised by pylint on the notebook.
Parameters
----------
capsys
Pytest fixture to capture stdout and stderr.
"""
# Pass one file with absolute path and the other one with relative path
notebook1 = os.path.abspath(
os.path.join("tests", "data", "notebook_for_testing.ipynb"))
notebook2 = os.path.join("tests", "data",
"notebook_with_indented_magics.ipynb")
with pytest.raises(SystemExit):
main(["pylint", notebook1, notebook2, "--disable=C0114"])
notebook1_expected_warnings = [
f"{str(notebook1)}:cell_2:19:8: C0303: Trailing whitespace (trailing-whitespace)",
f"{str(notebook1)}:cell_1:1:0: W0611: Unused import os (unused-import)",
f"{str(notebook1)}:cell_1:3:0: W0611: Unused import glob (unused-import)",
f"{str(notebook1)}:cell_1:5:0: W0611: Unused import nbqa (unused-import)",
f'{str(notebook1)}:cell_4:1:0: C0413: Import "from random import randint"'
+ " should be placed at the top of the module (wrong-import-position)",
f'{str(notebook1)}:cell_5:1:0: C0413: Import "import pprint"' +
" should be placed at the top of the module (wrong-import-position)",
f'{str(notebook1)}:cell_5:2:0: C0413: Import "import sys"' +
" should be placed at the top of the module (wrong-import-position)",
f"{str(notebook1)}:cell_4:1:0: C0411: standard import" +
' "from random import randint"' +
' should be placed before "import nbqa" (wrong-import-order)',
f"{str(notebook1)}:cell_5:1:0: C0411: standard import" +
' "import pprint"' +
' should be placed before "import nbqa" (wrong-import-order)',
f"{str(notebook1)}:cell_5:2:0: C0411: standard import" +
' "import sys"' +
' should be placed before "import nbqa" (wrong-import-order)',
]
notebook2_expected_warnings = [
f'{str(notebook2)}:cell_2:1:0: C0413: Import "from random import randint"'
+ " should be placed at the top of the module (wrong-import-position)"
]
# check out and err
out, err = capsys.readouterr()
# This is to ensure no additional warnings get generated apart
# from the expected ones. This will also help to update the test when the
# notebooks used for testing are modified later.
assert out.count(rf"{str(notebook1)}:cell_") == len(
notebook1_expected_warnings)
assert out.count(rf"{str(notebook2)}:cell_") == len(
notebook2_expected_warnings)
assert all(warning in out for warning in notebook1_expected_warnings)
assert all(warning in out for warning in notebook2_expected_warnings)
assert err == ""
def test_black_works_with_trailing_semicolons(
tmp_notebook_with_trailing_semicolon: Path,
capsys: "CaptureFixture") -> None:
"""
Check black works. Should only reformat code cells.
Parameters
----------
tmp_notebook_with_trailing_semicolon
Temporary copy of :code:`notebook_with_trailing_semicolon.ipynb`.
capsys
Pytest fixture to capture stdout and stderr.
"""
# check diff
with open(tmp_notebook_with_trailing_semicolon) as handle:
before = handle.readlines()
path = os.path.join("tests", "data",
"notebook_with_trailing_semicolon.ipynb")
Path("setup.cfg").write_text(
dedent("""\
[nbqa.mutate]
black=1
"""))
main(["black", os.path.abspath(path), "--line-length=10"])
Path("setup.cfg").unlink()
with open(tmp_notebook_with_trailing_semicolon) as handle:
after = handle.readlines()
diff = difflib.unified_diff(before, after)
result = "".join(
[i for i in diff
if any([i.startswith("+ "), i.startswith("- ")])])
expected = dedent("""\
- "import glob;\\n",
+ "import glob\\n",
- "def func(a, b):\\n",
- " pass;\\n",
- " "
+ "def func(\\n",
+ " a, b\\n",
+ "):\\n",
+ " pass;"
""")
assert result == expected
# check out and err
out, err = capsys.readouterr()
expected_out = ""
# replace \u with \\u for both expected_err and err
expected_err = (dedent(f"""\
reformatted {path}
All done! {SPARKLES} {SHORTCAKE} {SPARKLES}
1 file reformatted.
""").encode("ascii", "backslashreplace").decode())
# This is required because linux supports emojis
# so both should have \\ for comparison
err = err.encode("ascii", "backslashreplace").decode()
assert out == expected_out
assert expected_err == err
def test_configs_work(capsys: "CaptureFixture") -> None:
"""
Check a flake8 cfg file is picked up by nbqa.
Parameters
----------
capsys
Pytest fixture to capture stdout and stderr.
"""
Path(".flake8").write_text(
dedent("""\
[flake8]
ignore=F401
select=E303
quiet=1
"""))
main(["flake8", "tests", "--ignore", "E302"])
Path(".flake8").unlink()
# check out and err
out, _ = capsys.readouterr()
expected_out = ""
assert out == expected_out
def test_missing_root_dir(capsys) -> None:
"""Check useful error message is raised if :code:`nbqa` is called without root_dir."""
msg = dedent("""\
usage: nbqa <code quality tool> <notebook or directory> <nbqa options> <code quality tool arguments>
\x1b[1mPlease specify:\x1b[0m
- 1) a code quality tool (e.g. `black`, `pyupgrade`, `flake`, ...)
- 2) some notebooks (or, if supported by the tool, directories)
- 3) (optional) flags for nbqa (e.g. `--nbqa-mutate`)
- 4) (optional) flags for code quality tool (e.g. `--line-length` for `black`)
\x1b[1mExamples:\x1b[0m
nbqa flake8 notebook.ipynb
nbqa black notebook.ipynb --line-length=96
nbqa pyupgrade notebook_1.ipynb notebook_2.ipynb
\x1b[1mMutation:\x1b[0m to let `nbqa` modify your notebook(s), also pass `--nbqa-mutate`, e.g.:
nbqa black notebook.ipynb --nbqa-mutate
See https://nbqa.readthedocs.io/en/latest/index.html for more details on how to run `nbqa`.
__main__.py: error: the following arguments are required: root_dirs
""")
with pytest.raises(SystemExit):
main(["flake8", "--ignore=E203"])
_, err = capsys.readouterr()
assert msg == err
def test_black_works_with_leading_comment(capsys: "CaptureFixture") -> None:
"""
Check black works with notebooks with commented-out magics.
Parameters
----------
capsys
Pytest fixture to capture stdout and stderr.
"""
path = os.path.join("tests", "data", "starting_with_comment.ipynb")
main(["black", os.path.abspath(path), "--nbqa-diff"])
out, err = capsys.readouterr()
err = err.encode("ascii", "backslashreplace").decode()
expected_out = f"""\
\x1b[1mCell 3\x1b[0m
------
--- {os.path.abspath(path)}
+++ {os.path.abspath(path)}
@@ -1,3 +1,3 @@
# export
\x1b[31m-def example_func(hi = "yo"):
\x1b[0m\x1b[32m+def example_func(hi="yo"):
\x1b[0m pass
To apply these changes use `--nbqa-mutate` instead of `--nbqa-diff`
"""
expected_err = (dedent(f"""\
reformatted {path}
All done! {SPARKLES} {SHORTCAKE} {SPARKLES}
1 file reformatted.
""").encode("ascii", "backslashreplace").decode())
assert expected_out == out
assert expected_err == err
def test_running_in_different_dir_works(arg: Path, cwd: Path,
capsys: "CaptureFixture") -> None:
"""
Check .nbqa.ini config is picked up when running from non-root directory.
Parameters
----------
arg
Directory or notebook to run command on.
cwd
Directory from which to run command.
"""
config_path = Path(".nbqa.ini")
config_path.write_text(
dedent("""\
[flake8]
addopts = --ignore=F401 \
"""))
original_cwd = os.getcwd()
try:
os.chdir(str(cwd))
main(["flake8", str(arg)])
out, _ = capsys.readouterr()
assert "W291" in out
assert "F401" not in out
finally:
os.chdir(original_cwd)
Path(".nbqa.ini").unlink()
def test_pyupgrade_works_with_weird_databricks_file(
capsys: "CaptureFixture") -> None:
"""
Check pyupgrade works with unusual databricks notebooks.
Parameters
----------
capsys
Pytest fixture to capture stdout and stderr.
"""
path = os.path.join("tests", "data", "databricks_notebook.ipynb")
main(["pyupgrade", path, "--nbqa-diff"])
out, err = capsys.readouterr()
expected_out = (
f"\x1b[1mCell 2\x1b[0m\n------\n--- {path}\n"
f"+++ {path}\n"
"@@ -1 +1 @@\n"
"\x1b[31m-set(())\n"
"\x1b[0m\x1b[32m+set()\n"
"\x1b[0m\n"
"To apply these changes use `--nbqa-mutate` instead of `--nbqa-diff`\n"
)
expected_err = f"Rewriting {path}\n"
assert out == expected_out
assert err == expected_err
def test_pyproject_toml_works(
tmp_pyprojecttoml: Path, capsys: "CaptureFixture"
) -> None:
"""
Check if config is picked up from pyproject.toml works.
Parameters
----------
tmp_pyprojecttoml
Temporary pyproject.toml file.
capsys
Pytest fixture to capture stdout and stderr.
"""
tmp_pyprojecttoml.write_text(
dedent(
"""
[tool.nbqa.addopts]
flake8 = [
"--ignore=F401",
"--select=E303",
"--quiet"
]
"""
)
)
with pytest.raises(SystemExit):
main(["flake8", "tests", "--ignore", "E302"])
tmp_pyprojecttoml.unlink()
# check out and err
out, _ = capsys.readouterr()
expected_out = ""
assert out == expected_out
def test_diff_present(capsys: "CaptureFixture") -> None:
"""Test the results on --nbqa-diff on a dirty notebook."""
main(["black", str(DIRTY_NOTEBOOK), "--nbqa-diff"])
out, err = capsys.readouterr()
err = err.encode("ascii", "backslashreplace").decode()
expected_out = (
"\x1b[1mCell 2\x1b[0m\n"
"------\n"
f"--- {str(DIRTY_NOTEBOOK)}\n"
f"+++ {str(DIRTY_NOTEBOOK)}\n"
"@@ -12,8 +12,8 @@\n"
" 'hello goodbye'\n"
' """\n'
" \n"
"\x1b[31m- return 'hello {}'.format(name)\n"
'\x1b[0m\x1b[32m+ return "hello {}".format(name)\n'
"\x1b[0m \n"
" \n"
" !ls\n"
"\x1b[31m-hello(3) \n"
"\x1b[0m\x1b[32m+hello(3)\n"
"\x1b[0m\n"
"To apply these changes use `--nbqa-mutate` instead of `--nbqa-diff`\n"
)
assert out == expected_out
expected_err = (dedent(f"""\
reformatted {str(DIRTY_NOTEBOOK)}
All done! {SPARKLES} {SHORTCAKE} {SPARKLES}
1 file reformatted.
""").encode("ascii", "backslashreplace").decode())
assert err == expected_err
def test_black_works_with_literal_assignment(capsys: "CaptureFixture") -> None:
"""
Check black works with notebooks with invalid syntax (e.g. assignment to literal).
Parameters
----------
capsys
Pytest fixture to capture stdout and stderr.
"""
path = os.path.abspath(
os.path.join("tests", "invalid_data", "assignment_to_literal.ipynb"))
with pytest.raises(SystemExit):
main(["black", path])
out, err = capsys.readouterr()
expected_out = ""
expected_err = ((
f"error: cannot format {path}: "
"cannot use --safe with this file; failed to parse source file. AST error message: "
"can't assign to literal (<unknown>, cell_1:1)\nOh no! "
f"{COLLISION} {BROKEN_HEART} {COLLISION}\n1 file failed to reformat.\n"
).encode("ascii", "backslashreplace").decode())
# This is required because linux supports emojis
# so both should have \\ for comparison
err = err.encode("ascii", "backslashreplace").decode()
assert expected_out == out
assert expected_err == err
def test_process_cells_magic(capsys: "CaptureFixture") -> None:
"""
Notebook contains non-allowlist magic, but it's in process_cells.
"""
path = os.path.abspath(
os.path.join("tests", "data", "non_default_magic.ipynb"))
with pytest.raises(SystemExit):
main([
"black", path, "--nbqa-diff", "--nbqa-process-cells", "javascript"
])
out, _ = capsys.readouterr()
expected = (
"\x1b[1mCell 1\x1b[0m\n"
"------\n"
f"--- {path}\n"
f"+++ {path}\n"
"@@ -1,3 +1,3 @@\n"
" %%javascript\n"
" \n"
"\x1b[31m-a = 2 \n"
"\x1b[0m\x1b[32m+a = 2\n"
"\x1b[0m\n"
"To apply these changes use `--nbqa-mutate` instead of `--nbqa-diff`\n"
)
assert out == expected
def test_file_not_found() -> None:
"""Check useful error message is raised if file or directory doesn't exist."""
msg = "No such file or directory: I don't exist"
with pytest.raises(FileNotFoundError) as exc:
main(["isort", "I don't exist", "--profile=black", "--nbqa-mutate"])
assert msg in str(exc.value)
def test_flake8_works(capsys: "CaptureFixture") -> None:
"""
Check flake8 works. Shouldn't alter the notebook content.
Parameters
----------
capsys
Pytest fixture to capture stdout and stderr.
"""
# check passing both absolute and relative paths
path_0 = os.path.join("tests", "data", "notebook_for_testing.ipynb")
path_1 = os.path.join("tests", "data", "notebook_for_testing_copy.ipynb")
path_2 = os.path.abspath(
os.path.join("tests", "data", "notebook_starting_with_md.ipynb"))
with pytest.raises(SystemExit):
main(["flake8", path_0, path_1, path_2])
out, err = capsys.readouterr()
expected_out = dedent(f"""\
{path_0}:cell_1:1:1: F401 'os' imported but unused
{path_0}:cell_1:3:1: F401 'glob' imported but unused
{path_0}:cell_1:5:1: F401 'nbqa' imported but unused
{path_0}:cell_2:19:9: W291 trailing whitespace
{path_1}:cell_1:1:1: F401 'os' imported but unused
{path_1}:cell_1:3:1: F401 'glob' imported but unused
{path_1}:cell_1:5:1: F401 'nbqa' imported but unused
{path_2}:cell_1:1:1: F401 'os' imported but unused
{path_2}:cell_1:3:1: F401 'glob' imported but unused
{path_2}:cell_1:5:1: F401 'nbqa' imported but unused
{path_2}:cell_3:2:1: E302 expected 2 blank lines, found 0
""")
expected_err = ""
assert sorted(out.splitlines()) == sorted(expected_out.splitlines())
assert sorted(err.splitlines()) == sorted(expected_err.splitlines())
def test_file_not_found(capsys: "CaptureFixture") -> None:
"""Check useful error message is raised if file or directory doesn't exist."""
msg = "No such file or directory: I don't exist"
main(["isort", "I don't exist", "--profile=black", "--nbqa-mutate"])
_, err = capsys.readouterr()
assert msg in err
def test_isort_trailing_semicolon(
tmp_notebook_with_trailing_semicolon: Path) -> None:
"""
Check isort works when a notebook starts with a markdown cell.
Parameters
----------
tmp_notebook_with_trailing_semicolon
Temporary copy of :code:`notebook_with_trailing_semicolon.ipynb`.
"""
# check diff
with open(tmp_notebook_with_trailing_semicolon) as handle:
before = handle.readlines()
path = os.path.abspath(
os.path.join("tests", "data",
"notebook_with_trailing_semicolon.ipynb"))
with pytest.raises(SystemExit):
main(["isort", path, "--nbqa-mutate"])
with open(tmp_notebook_with_trailing_semicolon) as handle:
after = handle.readlines()
diff = difflib.unified_diff(before, after)
result = "".join(
[i for i in diff
if any([i.startswith("+ "), i.startswith("- ")])])
expected = dedent("""\
- "import glob;\\n",
+ "import glob\\n",
- " pass;\\n",
- " "
+ " pass;"
""")
assert result == expected
def _run_nbqa(command: str, notebook: str, *args: str) -> Tuple[List[str], List[str]]:
"""
Run nbQA on the given notebook using the input command.
Parameters
----------
command : str
Third party tool to run
notebook : str
Notebook given to nbQA
Returns
-------
Tuple[List[str], List[str]]
Content of the notebook before and after running nbQA
"""
with open(notebook) as handle:
before = handle.readlines()
with pytest.raises(SystemExit):
main([command, notebook, *args])
with open(notebook) as handle:
after = handle.readlines()
return (before, after)
def test_pyproject_toml_works(temporarily_delete_pyprojecttoml: Path,
capsys: "CaptureFixture") -> None:
"""
Check if config is picked up from pyproject.toml works.
Parameters
----------
capsys
Pytest fixture to capture stdout and stderr.
"""
filename: str = str(temporarily_delete_pyprojecttoml)
with open(filename, "w") as handle:
handle.write(
dedent("""
[tool.nbqa.addopts]
flake8 = [
"--ignore=F401",
"--select=E303",
"--quiet"
]
"""))
with pytest.raises(SystemExit):
main(["flake8", "tests", "--ignore", "E302"])
Path(filename).unlink()
# check out and err
out, _ = capsys.readouterr()
expected_out = ""
assert out == expected_out
def test_comment_after_trailing_semicolons(capsys: "CaptureFixture") -> None:
"""Check isort works normally when there's a comment after trailing semicolon."""
# check diff
path = os.path.abspath(
os.path.join("tests", "data",
"comment_after_trailing_semicolon.ipynb"))
main(["isort", path, "--nbqa-diff"])
out, _ = capsys.readouterr()
expected_out = (
"\x1b[1mCell 1\x1b[0m\n"
"------\n"
f"--- {path}\n"
f"+++ {path}\n"
"@@ -1,4 +1,5 @@\n"
"\x1b[31m-import glob;\n"
"\x1b[0m\x1b[32m+import glob\n"
"\x1b[0m \n"
" import nbqa;\n"
"\x1b[32m+\n"
"\x1b[0m # this is a comment\n"
"\n"
f"Fixing {path}\n"
"To apply these changes use `--nbqa-mutate` instead of `--nbqa-diff`\n"
)
assert out == expected_out
def test_missing_root_dir(capsys: "CaptureFixture") -> None:
"""Check useful error message is raised if :code:`nbqa` is called without root_dir."""
prefix = "\x1b[1m"
suffix = "\x1b[0m"
pattern = re.escape(f"""\
usage: nbqa <code quality tool> <notebook or directory> <nbqa options> \
<code quality tool arguments>
{prefix}Please specify:{suffix}
- 1) a code quality tool (e.g. `black`, `pyupgrade`, `flake`, ...)
- 2) some notebooks (or, if supported by the tool, directories)
- 3) (optional) flags for nbqa (e.g. `--nbqa-mutate`)
- 4) (optional) flags for code quality tool (e.g. `--line-length` for `black`)
{prefix}Examples:{suffix}
nbqa flake8 notebook.ipynb
nbqa black notebook.ipynb --line-length=96
nbqa pyupgrade notebook_1.ipynb notebook_2.ipynb
{prefix}Mutation:{suffix} to let `nbqa` modify your notebook(s), \
also pass `--nbqa-mutate`, e.g.:
nbqa black notebook.ipynb --nbqa-mutate
See https://nbqa.readthedocs.io/en/latest/index.html for more details on \
how to run `nbqa`.\
""")
pattern = pattern + ".*: error: the following arguments are required: root_dirs\n"
with pytest.raises(SystemExit):
main(["flake8", "--ignore=E203"])
_, err = capsys.readouterr()
assert re.fullmatch(pattern, err, re.DOTALL)
def test_unable_to_reconstruct_message(capsys: "CaptureFixture") -> None:
"""Check error message shows if we're unable to reconstruct notebook."""
path = os.path.abspath(os.path.join("tests", "data", "notebook_for_testing.ipynb"))
message = f"Error reconstructing {path}"
main(["remove_comments", path, "--nbqa-mutate"])
_, err = capsys.readouterr()
assert message in err
def test_unable_to_parse_output(capsys: "CaptureFixture") -> None:
"""
Check user is encouraged to report bug if we're unable to parse tool's output.
Parameters
----------
capsys
Pytest fixture to capture stdout and stderr.
"""
path = Path("tests") / "data/notebook_for_testing.ipynb"
# pylint: disable=C0301
expected_err = dedent(r"""\
\x1b\[1mKeyError(.*) while parsing output from applying print_6174 to tests.data.notebook_for_testing\.ipynb
Please report a bug at https://github\.com/nbQA\-dev/nbQA/issues \x1b\[0m
"""
# noqa: E501
)
# pylint: enable=C0301
expected_out = f"{str(path)}:6174:0 some silly warning\n"
with pytest.raises(SystemExit):
main(["print_6174", str(path), "--nbqa-mutate"])
out, err = capsys.readouterr()
re.match(expected_err, err)
assert expected_out == out
def test_configs_work_in_nbqaini(capsys: "CaptureFixture") -> None:
"""
Check a .nbqa.ini file is picked up by nbqa.
No longer "officially" supported but keeping this here
for backwards compatibility.
Parameters
----------
capsys
Pytest fixture to capture stdout and stderr.
"""
Path(".flake8").write_text(
dedent("""\
[flake8]
ignore=F401
select=E303
quiet=1
"""))
Path(".nbqa.ini").write_text(
dedent("""\
[flake8]
config=.flake8
"""))
with pytest.raises(SystemExit):
main(["flake8", "tests", "--ignore", "E302"])
Path(".flake8").unlink()
Path(".nbqa.ini").unlink()
# check out and err
out, _ = capsys.readouterr()
assert out == ""
def test_black_multiple_files(tmp_test_data: Path) -> None:
"""
Check black works when running on a directory. Should reformat notebooks.
Parameters
----------
tmp_test_data
Temporary copy of test data.
"""
# check diff
with open(str(tmp_test_data / "notebook_for_testing.ipynb")) as handle:
before = handle.readlines()
path = os.path.abspath(os.path.join("tests", "data"))
Path("setup.cfg").write_text(
dedent("""\
[nbqa.mutate]
black=1
"""))
main(["black", path])
Path("setup.cfg").unlink()
with open(str(tmp_test_data / "notebook_for_testing.ipynb")) as handle:
after = handle.readlines()
diff = difflib.unified_diff(before, after)
assert "".join(diff) != ""
def test_isort_initial_md(
tmp_notebook_starting_with_md: "Path", capsys: "CaptureFixture"
) -> None:
"""
Check isort works when a notebook starts with a markdown cell.
Parameters
----------
tmp_notebook_starting_with_md
Temporary copy of :code:`notebook_for_testing.ipynb`.
capsys
Pytest fixture to capture stdout and stderr.
"""
# check diff
with open(tmp_notebook_starting_with_md) as handle:
before = handle.readlines()
path = os.path.join("tests", "data", "notebook_starting_with_md.ipynb")
with pytest.raises(SystemExit):
main(["isort", path, "--nbqa-mutate"])
with open(tmp_notebook_starting_with_md) as handle:
after = handle.readlines()
diff = difflib.unified_diff(before, after)
result = "".join([i for i in diff if any([i.startswith("+ "), i.startswith("- ")])])
expected = '+ "import glob\\n",\n- "\\n",\n- "import glob\\n",\n'
assert result == expected
# check out and err
out, err = capsys.readouterr()
expected_out = f"Fixing {path}{os.linesep}"
expected_err = ""
assert out == expected_out
assert err == expected_err
def test_invalid_syntax_with_nbqa_diff(capsys: "CaptureFixture") -> None:
"""
Check that using nbqa-diff when there's invalid syntax doesn't have empty output.
Parameters
----------
capsys
Pytest fixture to capture stdout and stderr.
"""
path = os.path.join("tests", "invalid_data", "assignment_to_literal.ipynb")
main(["black", os.path.abspath(path), "--nbqa-diff"])
out, err = capsys.readouterr()
expected_out = ""
expected_err = ((
f"error: cannot format {path}: "
"cannot use --safe with this file; failed to parse source file. AST error message: "
"can't assign to literal (<unknown>, cell_1:1)\nOh no! "
f"{COLLISION} {BROKEN_HEART} {COLLISION}\n1 file failed to reformat.\n"
).encode("ascii", "backslashreplace").decode())
# This is required because linux supports emojis
# so both should have \\ for comparison
err = err.encode("ascii", "backslashreplace").decode()
assert expected_out == out
assert expected_err == err
def test_isort_separated_imports(notebook: str, capsys: "CaptureFixture") -> None:
"""
Check isort works when a notebook has imports in different cells.
We will pass --treat-comment-as-code '# %%'.
Parameters
----------
tmp_notebook_starting_with_md
Temporary copy of :code:`notebook_for_testing.ipynb`.
capsys
Pytest fixture to capture stdout and stderr.
"""
with open("setup.cfg", "w") as handle:
handle.write(
dedent(
"""\
[nbqa.isort]
addopts = --treat-comment-as-code "# %%%%"
"""
)
)
path = os.path.abspath(os.path.join("tests", "data", notebook))
with pytest.raises(SystemExit):
main(["isort", path, "--nbqa-mutate"])
Path("setup.cfg").unlink()
# check out and err
out, err = capsys.readouterr()
expected_out = ""
expected_err = ""
assert out == expected_out
assert err == expected_err
def test_mypy_works(capsys: "CaptureFixture") -> None:
"""
Check mypy works. Shouldn't alter the notebook content.
Parameters
----------
capsys
Pytest fixture to capture stdout and stderr.
"""
main([
"mypy",
"--ignore-missing-imports",
"--allow-untyped-defs",
str(Path("tests") / "data"),
])
# check out and err
out, err = capsys.readouterr()
path_0 = os.path.join("tests", "data", "notebook_for_testing.ipynb")
path_1 = os.path.join("tests", "data", "notebook_for_testing_copy.ipynb")
path_2 = os.path.join("tests", "data", "notebook_starting_with_md.ipynb")
expected_out = dedent(f"""\
{path_2}:cell_3:18: error: Argument 1 to "hello" has incompatible type "int"; expected "str"
{path_1}:cell_2:18: error: Argument 1 to "hello" has incompatible type "int"; expected "str"
{path_0}:cell_2:19: error: Argument 1 to "hello" has incompatible type "int"; expected "str"
Found 3 errors in 3 files (checked 24 source files)
"""
# noqa
)
expected_err = ""
assert sorted(out.splitlines()) == sorted(expected_out.splitlines())
assert sorted(err.splitlines()) == sorted(expected_err.splitlines())
def test_isort_separated_imports(notebook: str,
capsys: "CaptureFixture") -> None:
"""
Check isort works when a notebook has imports in different cells.
We will pass --treat-comment-as-code '# %%NBQA-CELL-SEP'.
Parameters
----------
notebook
Notebook to run ``nbqa isort`` on.
capsys
Pytest fixture to capture stdout and stderr.
"""
Path("setup.cfg").write_text(
dedent("""\
[nbqa.isort]
addopts = --treat-comment-as-code "# %%%%NBQA-CELL-SEP"
"""))
path = os.path.abspath(os.path.join("tests", "data", notebook))
with pytest.raises(SystemExit):
main(["isort", path, "--nbqa-mutate"])
Path("setup.cfg").unlink()
# check out and err
out, err = capsys.readouterr()
expected_out = ""
expected_err = ""
assert out == expected_out
assert err == expected_err
def test_nbqa_ini_works(capsys: "CaptureFixture") -> None:
"""
Check setup.cfg config is picked up works.
Parameters
----------
capsys
Pytest fixture to capture stdout and stderr.
"""
Path("setup.cfg").write_text(
dedent("""\
[nbqa.addopts]
flake8 = --ignore=F401 \
--select=E303 \
--quiet
"""))
with pytest.raises(SystemExit):
main(["flake8", "tests", "--ignore", "E302"])
Path("setup.cfg").unlink()
# check out and err
out, _ = capsys.readouterr()
expected_out = ""
assert out == expected_out
def test_configs_work(capsys: "CaptureFixture") -> None:
"""
Check a flake8 cfg file is picked up by nbqa.
Parameters
----------
tmp_notebook_for_testing
Temporary copy of :code:`notebook_for_testing.ipynb`.
capsys
Pytest fixture to capture stdout and stderr.
"""
with open(".flake8", "w") as handle:
handle.write("[flake8]\nignore=F401\nselect=E303\nquiet=1\n")
with pytest.raises(SystemExit):
main([
"flake8", "tests", "--ignore", "E302", "--nbqa-config", ".flake8"
])
Path(".flake8").unlink()
# check out and err
out, _ = capsys.readouterr()
expected_out = ""
assert out == expected_out
