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import os
from pathlib import Path
import re
from subprocess import run, PIPE
# Note: typing.Pattern is deprecated, for removal in 3.13 in favour of re.Pattern introduced in 3.8
from typing import List, Union, Pattern
import pytest
NOTEBOOKS_FOLDER = Path("tests/e2e_notebooks")
TEST_CASES = [
("test_drop_empty_cells.ipynb", "test_drop_empty_cells_dontdrop.ipynb.expected", []),
("test_drop_empty_cells.ipynb", "test_drop_empty_cells.ipynb.expected", ["--drop-empty-cells"]),
("test_drop_tagged_cells.ipynb", "test_drop_tagged_cells_dontdrop.ipynb.expected", []),
("test_drop_tagged_cells.ipynb", "test_drop_tagged_cells.ipynb.expected", ['--drop-tagged-cells=test']),
("test_execution_timing.ipynb", "test_execution_timing.ipynb.expected", []),
("test_max_size.ipynb", "test_max_size.ipynb.expected", ["--max-size", "50", "--keep-id"]),
("test_max_size.ipynb", "test_max_size.ipynb.expected_sequential_id", ["--max-size", "50"]),
("test_empty_metadata.ipynb", "test_empty_metadata.ipynb.expected", []),
("test_metadata.ipynb", "test_metadata.ipynb.expected", []),
("test_metadata.ipynb", "test_metadata_extra_keys.ipynb.expected", ["--extra-keys", "metadata.kernelspec metadata.language_info"]),
("test_metadata.ipynb", "test_metadata_keep_count.ipynb.expected", ["--keep-count"]),
("test_metadata.ipynb", "test_metadata_keep_output.ipynb.expected", ["--keep-output"]),
("test_metadata.ipynb", "test_metadata_keep_output_keep_count.ipynb.expected", ["--keep-output", "--keep-count"]),
("test_metadata_notebook.ipynb", "test_metadata_notebook.ipynb.expected", []),
("test_keep_metadata_keys.ipynb", "test_keep_metadata_keys.ipynb.expected", ["--keep-metadata-keys", "cell.metadata.scrolled cell.metadata.collapsed metadata.a"]),
("test_metadata_period.ipynb", "test_metadata_period.ipynb.expected", ["--extra-keys", "cell.metadata.application/vnd.databricks.v1+cell metadata.application/vnd.databricks.v1+notebook"]),
("test_strip_init_cells.ipynb", "test_strip_init_cells.ipynb.expected", ["--strip-init-cells"]),
("test_nbformat2.ipynb", "test_nbformat2.ipynb.expected", []),
("test_nbformat45.ipynb", "test_nbformat45.ipynb.expected", ["--keep-id"]),
("test_nbformat45.ipynb", "test_nbformat45.ipynb.expected_sequential_id", []),
("test_missing_nbformat.ipynb", "test_missing_nbformat.ipynb.expected", []),
("test_unicode.ipynb", "test_unicode.ipynb.expected", []),
("test_widgets.ipynb", "test_widgets.ipynb.expected", []),
("test_zeppelin.zpln", "test_zeppelin.zpln.expected", ["--mode", "zeppelin"]),
]
DRY_RUN_CASES = [
("test_metadata.ipynb", [], True),
("test_zeppelin.zpln", ["--mode", "zeppelin"], True),
("test_nochange.ipynb", [], False),
]
ERR_OUTPUT_CASES = [
("test_metadata.ipynb", ["Ignoring invalid extra key `invalid`", "Ignoring invalid extra key `foo.invalid`"], ["--extra-keys", "invalid foo.invalid"]),
("test_metadata_exception.ipynb", [re.compile(".*MetadataError: cell metadata contradicts tags: `keep_output` is false, but `keep_output` in tags")], []),
("test_invalid_json.ipynb", ["No valid notebook detected on stdin"], []),
]
def nbstripout_exe():
return os.environ.get("NBSTRIPOUT_EXE", "nbstripout")
@pytest.mark.parametrize("input_file, expected_file, args", TEST_CASES)
@pytest.mark.parametrize("verify", (True, False))
def test_end_to_end_stdin(input_file: str, expected_file: str, args: List[str], verify: bool):
with open(NOTEBOOKS_FOLDER / expected_file, mode="r") as f:
expected = f.read()
with open(NOTEBOOKS_FOLDER / input_file, mode="r") as f:
input_ = f.read()
with open(NOTEBOOKS_FOLDER / input_file, mode="r") as f:
args = [nbstripout_exe()] + args
if verify:
args.append("--verify")
pc = run(args, stdin=f, stdout=PIPE, universal_newlines=True)
output = pc.stdout
if verify:
# When using stin, the dry run flag is disregarded.
assert pc.returncode == (1 if input_ != expected else 0)
else:
assert output == expected
assert pc.returncode == 0
@pytest.mark.parametrize("input_file, expected_file, args", TEST_CASES)
@pytest.mark.parametrize("verify", (True, False))
def test_end_to_end_file(input_file: str, expected_file: str, args: List[str], tmp_path, verify: bool):
with open(NOTEBOOKS_FOLDER / expected_file, mode="r") as f:
expected = f.read()
p = tmp_path / input_file
with open(NOTEBOOKS_FOLDER / input_file, mode="r") as f:
p.write_text(f.read())
with open(NOTEBOOKS_FOLDER / input_file, mode="r") as f:
input_ = f.read()
args = [nbstripout_exe(), p] + args
if verify:
args.append("--verify")
pc = run(args, stdout=PIPE, universal_newlines=True)
output = pc.stdout.strip()
if verify:
if expected != input_:
assert "Dry run: would have stripped" in output
assert pc.returncode == 1
# Since verify implies --dry-run, we make sure the file is not modified
with open(NOTEBOOKS_FOLDER / input_file, mode="r") as f:
output_ = f.read()
assert output_ == input_
else:
assert pc.returncode == 0
assert not pc.stdout and p.read_text() == expected
@pytest.mark.parametrize("input_file, extra_args, any_change", DRY_RUN_CASES)
@pytest.mark.parametrize("verify", (True, False))
def test_dry_run_stdin(input_file: str, extra_args: List[str], any_change:bool, verify: bool):
expected = "Dry run: would have stripped input from stdin\n"
with open(NOTEBOOKS_FOLDER / input_file, mode="r") as f:
args = [nbstripout_exe(), "--dry-run"] + extra_args
if verify:
args.append("--verify")
pc = run(args, stdin=f, stdout=PIPE, universal_newlines=True)
output = pc.stdout
assert output == (expected if any_change else '')
assert pc.returncode == (1 if verify and any_change else 0)
@pytest.mark.parametrize("input_file, extra_args, any_change", DRY_RUN_CASES)
@pytest.mark.parametrize("verify", (True, False))
def test_dry_run_args(input_file: str, extra_args: List[str], any_change: bool, verify: bool):
expected_regex = re.compile(f"Dry run: would have stripped .*[/\\\\]{input_file}\n")
args = [nbstripout_exe(), str(NOTEBOOKS_FOLDER / input_file), "--dry-run", ] + extra_args
if verify:
args.append("--verify")
pc = run(args, stdout=PIPE, universal_newlines=True)
output = pc.stdout
assert expected_regex.match(output) if any_change else output == ''
assert pc.returncode == (1 if verify and any_change else 0)
@pytest.mark.parametrize("input_file, expected_errs, extra_args", ERR_OUTPUT_CASES)
def test_make_errors(input_file: str, expected_errs: List[Union[str, Pattern]], extra_args: List[str]):
with open(NOTEBOOKS_FOLDER / input_file, mode="r") as f:
pc = run([nbstripout_exe(), "--dry-run"] + extra_args, stdin=f, stderr=PIPE, universal_newlines=True)
err_output = pc.stderr
for e in expected_errs:
if isinstance(e, Pattern):
assert e.search(err_output)
else:
assert e in err_output
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