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# Copyright 2022 The ChromiumOS Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""
Tests for the generate_readme.py file.
"""
import pytest # pylint:disable=import-error
import zmake.generate_readme as gen_readme
def test_generate_readme_contents():
"""Verify the readme contains at least one known line."""
readme = gen_readme.generate_readme()
# Look for a string we know should appear in the README.
assert "### zmake testall\n" in readme
@pytest.mark.parametrize(
["expected_contents", "actual_contents", "return_code"],
[
("abc\ndef\nghi\n", "abc\nghi\n", 1),
("abc\ndef\nghi\n", "abc\ndef\nghi\n", 0),
("abc\ndef\nghi\n", None, 1),
],
)
def test_generate_readme_diff(
monkeypatch,
tmp_path,
zmake_from_dir,
expected_contents,
actual_contents,
return_code,
):
"""Verify that the diff function can detect different text."""
def generate_readme():
return expected_contents
monkeypatch.setattr(gen_readme, "generate_readme", generate_readme)
readme_file = tmp_path / "README.md"
if actual_contents is not None:
readme_file.write_text(actual_contents)
assert zmake_from_dir.generate_readme(readme_file, diff=True) == return_code
@pytest.mark.parametrize("exist", [False, True])
def test_generate_readme_file(monkeypatch, tmp_path, exist, zmake_from_dir):
"""Verify that README.md can be created if it exists already or not."""
def generate_readme():
return "hello\n"
monkeypatch.setattr(gen_readme, "generate_readme", generate_readme)
readme_file = tmp_path / "README.md"
if exist:
readme_file.write_text("some existing contents\n")
assert zmake_from_dir.generate_readme(readme_file) == 0
assert readme_file.read_text() == "hello\n"
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