cookiecutter-django/tests/test_cookiecutter_generation.py

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import glob
import os
import re
import sys
import pytest
try:
import sh
except (ImportError, ModuleNotFoundError):
sh = None # sh doesn't support Windows
import yaml
from binaryornot.check import is_binary
from cookiecutter.exceptions import FailedHookException
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PATTERN = r"{{(\s?cookiecutter)[.](.*?)}}"
RE_OBJ = re.compile(PATTERN)
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if sys.platform.startswith("win"):
pytest.skip("sh doesn't support windows", allow_module_level=True)
elif sys.platform.startswith("darwin") and os.getenv("CI"):
pytest.skip("skipping slow macOS tests on CI", allow_module_level=True)
# Run auto-fixable styles checks - skipped on CI by default. These can be fixed
# automatically by running pre-commit after generation however they are tedious
# to fix in the template, so we don't insist too much in fixing them.
AUTOFIXABLE_STYLES = os.getenv("AUTOFIXABLE_STYLES") == "1"
auto_fixable = pytest.mark.skipif(not AUTOFIXABLE_STYLES, reason="auto-fixable")
@pytest.fixture
def context():
return {
"project_name": "My Test Project",
"project_slug": "my_test_project",
"author_name": "Test Author",
"email": "test@example.com",
"description": "A short description of the project.",
"domain_name": "example.com",
"version": "0.1.0",
"timezone": "UTC",
}
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SUPPORTED_COMBINATIONS = [
{"username_type": "username"},
{"username_type": "email"},
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{"open_source_license": "MIT"},
{"open_source_license": "BSD"},
{"open_source_license": "GPLv3"},
{"open_source_license": "Apache Software License 2.0"},
{"open_source_license": "Not open source"},
{"windows": "y"},
{"windows": "n"},
{"editor": "None"},
{"editor": "PyCharm"},
{"editor": "VS Code"},
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{"use_docker": "y"},
{"use_docker": "n"},
{"postgresql_version": "15"},
{"postgresql_version": "14"},
{"postgresql_version": "13"},
{"postgresql_version": "12"},
{"postgresql_version": "11"},
{"postgresql_version": "10"},
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{"cloud_provider": "AWS", "use_whitenoise": "y"},
{"cloud_provider": "AWS", "use_whitenoise": "n"},
{"cloud_provider": "GCP", "use_whitenoise": "y"},
{"cloud_provider": "GCP", "use_whitenoise": "n"},
{"cloud_provider": "Azure", "use_whitenoise": "y"},
{"cloud_provider": "Azure", "use_whitenoise": "n"},
{"cloud_provider": "None", "use_whitenoise": "y", "mail_service": "Mailgun"},
{"cloud_provider": "None", "use_whitenoise": "y", "mail_service": "Mailjet"},
{"cloud_provider": "None", "use_whitenoise": "y", "mail_service": "Mandrill"},
{"cloud_provider": "None", "use_whitenoise": "y", "mail_service": "Postmark"},
{"cloud_provider": "None", "use_whitenoise": "y", "mail_service": "Sendgrid"},
{"cloud_provider": "None", "use_whitenoise": "y", "mail_service": "SendinBlue"},
{"cloud_provider": "None", "use_whitenoise": "y", "mail_service": "SparkPost"},
{"cloud_provider": "None", "use_whitenoise": "y", "mail_service": "Other SMTP"},
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# Note: cloud_provider=None AND use_whitenoise=n is not supported
{"cloud_provider": "AWS", "mail_service": "Mailgun"},
{"cloud_provider": "AWS", "mail_service": "Amazon SES"},
{"cloud_provider": "AWS", "mail_service": "Mailjet"},
{"cloud_provider": "AWS", "mail_service": "Mandrill"},
{"cloud_provider": "AWS", "mail_service": "Postmark"},
{"cloud_provider": "AWS", "mail_service": "Sendgrid"},
{"cloud_provider": "AWS", "mail_service": "SendinBlue"},
{"cloud_provider": "AWS", "mail_service": "SparkPost"},
{"cloud_provider": "AWS", "mail_service": "Other SMTP"},
{"cloud_provider": "GCP", "mail_service": "Mailgun"},
{"cloud_provider": "GCP", "mail_service": "Mailjet"},
{"cloud_provider": "GCP", "mail_service": "Mandrill"},
{"cloud_provider": "GCP", "mail_service": "Postmark"},
{"cloud_provider": "GCP", "mail_service": "Sendgrid"},
{"cloud_provider": "GCP", "mail_service": "SendinBlue"},
{"cloud_provider": "GCP", "mail_service": "SparkPost"},
{"cloud_provider": "GCP", "mail_service": "Other SMTP"},
{"cloud_provider": "Azure", "mail_service": "Mailgun"},
{"cloud_provider": "Azure", "mail_service": "Mailjet"},
{"cloud_provider": "Azure", "mail_service": "Mandrill"},
{"cloud_provider": "Azure", "mail_service": "Postmark"},
{"cloud_provider": "Azure", "mail_service": "Sendgrid"},
{"cloud_provider": "Azure", "mail_service": "SendinBlue"},
{"cloud_provider": "Azure", "mail_service": "SparkPost"},
{"cloud_provider": "Azure", "mail_service": "Other SMTP"},
# Note: cloud_providers GCP, Azure, and None
# with mail_service Amazon SES is not supported
{"use_async": "y"},
{"use_async": "n"},
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{"use_drf": "y"},
{"use_drf": "n"},
{"frontend_pipeline": "None"},
{"frontend_pipeline": "Django Compressor"},
{"frontend_pipeline": "Gulp"},
{"frontend_pipeline": "Webpack"},
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{"use_celery": "y"},
{"use_celery": "n"},
{"use_mailpit": "y"},
{"use_mailpit": "n"},
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{"use_sentry": "y"},
{"use_sentry": "n"},
{"use_whitenoise": "y"},
{"use_whitenoise": "n"},
{"use_heroku": "y"},
{"use_heroku": "n"},
{"ci_tool": "None"},
{"ci_tool": "Travis"},
{"ci_tool": "Gitlab"},
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{"ci_tool": "Github"},
{"ci_tool": "Drone"},
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{"keep_local_envs_in_vcs": "y"},
{"keep_local_envs_in_vcs": "n"},
{"debug": "y"},
{"debug": "n"},
]
UNSUPPORTED_COMBINATIONS = [
{"cloud_provider": "None", "use_whitenoise": "n"},
{"cloud_provider": "GCP", "mail_service": "Amazon SES"},
{"cloud_provider": "Azure", "mail_service": "Amazon SES"},
{"cloud_provider": "None", "mail_service": "Amazon SES"},
]
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def _fixture_id(ctx):
"""Helper to get a user-friendly test name from the parametrized context."""
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return "-".join(f"{key}:{value}" for key, value in ctx.items())
def build_files_list(base_dir):
"""Build a list containing absolute paths to the generated files."""
return [os.path.join(dirpath, file_path) for dirpath, subdirs, files in os.walk(base_dir) for file_path in files]
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def check_paths(paths):
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"""Method to check all paths have correct substitutions."""
# Assert that no match is found in any of the files
for path in paths:
if is_binary(path):
continue
for line in open(path):
match = RE_OBJ.search(line)
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assert match is None, f"cookiecutter variable not replaced in {path}"
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@pytest.mark.parametrize("context_override", SUPPORTED_COMBINATIONS, ids=_fixture_id)
def test_project_generation(cookies, context, context_override):
"""Test that project is generated and fully rendered."""
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result = cookies.bake(extra_context={**context, **context_override})
assert result.exit_code == 0
assert result.exception is None
assert result.project_path.name == context["project_slug"]
assert result.project_path.is_dir()
paths = build_files_list(str(result.project_path))
assert paths
check_paths(paths)
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@pytest.mark.parametrize("context_override", SUPPORTED_COMBINATIONS, ids=_fixture_id)
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def test_ruff_check_passes(cookies, context_override):
"""Generated project should pass ruff check."""
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result = cookies.bake(extra_context=context_override)
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try:
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sh.ruff("check", ".", _cwd=str(result.project_path))
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except sh.ErrorReturnCode as e:
pytest.fail(e.stdout.decode())
@auto_fixable
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@pytest.mark.parametrize("context_override", SUPPORTED_COMBINATIONS, ids=_fixture_id)
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def test_ruff_format_passes(cookies, context_override):
"""Check whether generated project passes ruff format."""
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result = cookies.bake(extra_context=context_override)
try:
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sh.ruff(
"format",
".",
_cwd=str(result.project_path),
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)
except sh.ErrorReturnCode as e:
pytest.fail(e.stdout.decode())
Add missing `script` key to Travis CI config (#1950) * Add failing test for travis.yml I see three options to test travis.yml : 1. Testing that the YAML contains relevant value. Least useful and least reliable, but simplest to implement. 2. Testing that the YAML is valid TravisCI YAML. Unfortunately this is difficult / impossible. Doing 'travis lint' would succeed, this command does not check for 'script' key presence and wouldn't be useful for us. We could use 'travis-build' to verify that the YAML can be converted to a worker config, but as of now 'travis-build' doesn't work out of the box. There is a new tool for validating travis YAML files 'travis-yml', but as of now it's a ruby-only library and it's still a work in progress. 3. Running Travis CI task based on the generated YAML. This seems the best approach, however since cookiecutter-django itself uses Travis CI, that would require running Travis CI from within Travis CI. Scheduling Travis CI job without a github push still requires a public github repo, which is something that we can't generate on demand. Given that I'm opting to use approach 1. * Adds missing config to generated .travis.yml The keys added are as follows: 1. 'script' Required by Travis, cookiecutter-django used to provide it until it has been removed together with hitch. I'm assuming hitch has been replaced with pytest, I'm setting pytest as the new value for the 'script' key. 2. 'install' Not required by Travis, but necessary in our case; installs test libraries, mostly pytest. As of now this points to 'local.txt' requirements file. There used to be a separate 'test.txt' requirements file but it has been decided to merge it with 'local.txt', see discussion in https://github.com/pydanny/cookiecutter-django/pull/1557 . * Update CONTRIBUTORS.rst
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@auto_fixable
@pytest.mark.parametrize("context_override", SUPPORTED_COMBINATIONS, ids=_fixture_id)
def test_isort_passes(cookies, context_override):
"""Check whether generated project passes isort style."""
result = cookies.bake(extra_context=context_override)
try:
sh.isort(_cwd=str(result.project_path))
except sh.ErrorReturnCode as e:
pytest.fail(e.stdout.decode())
@auto_fixable
@pytest.mark.parametrize("context_override", SUPPORTED_COMBINATIONS, ids=_fixture_id)
def test_django_upgrade_passes(cookies, context_override):
"""Check whether generated project passes django-upgrade."""
result = cookies.bake(extra_context=context_override)
python_files = [
file_path.removeprefix(f"{result.project_path}/")
for file_path in glob.glob(str(result.project_path / "**" / "*.py"), recursive=True)
]
try:
sh.django_upgrade(
"--target-version",
"4.2",
*python_files,
_cwd=str(result.project_path),
)
except sh.ErrorReturnCode as e:
pytest.fail(e.stdout.decode())
@pytest.mark.parametrize("context_override", SUPPORTED_COMBINATIONS, ids=_fixture_id)
def test_djlint_lint_passes(cookies, context_override):
"""Check whether generated project passes djLint --lint."""
result = cookies.bake(extra_context=context_override)
autofixable_rules = "H014,T001"
# TODO: remove T002 when fixed https://github.com/Riverside-Healthcare/djLint/issues/687
ignored_rules = "H006,H030,H031,T002"
try:
sh.djlint("--lint", "--ignore", f"{autofixable_rules},{ignored_rules}", ".", _cwd=str(result.project_path))
except sh.ErrorReturnCode as e:
pytest.fail(e.stdout.decode())
@auto_fixable
@pytest.mark.parametrize("context_override", SUPPORTED_COMBINATIONS, ids=_fixture_id)
def test_djlint_check_passes(cookies, context_override):
"""Check whether generated project passes djLint --check."""
result = cookies.bake(extra_context=context_override)
try:
sh.djlint("--check", ".", _cwd=str(result.project_path))
except sh.ErrorReturnCode as e:
pytest.fail(e.stdout.decode())
@pytest.mark.parametrize(
["use_docker", "expected_test_script"],
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[
("n", "pytest"),
("y", "docker compose -f local.yml run django pytest"),
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],
)
def test_travis_invokes_pytest(cookies, context, use_docker, expected_test_script):
context.update({"ci_tool": "Travis", "use_docker": use_docker})
Add missing `script` key to Travis CI config (#1950) * Add failing test for travis.yml I see three options to test travis.yml : 1. Testing that the YAML contains relevant value. Least useful and least reliable, but simplest to implement. 2. Testing that the YAML is valid TravisCI YAML. Unfortunately this is difficult / impossible. Doing 'travis lint' would succeed, this command does not check for 'script' key presence and wouldn't be useful for us. We could use 'travis-build' to verify that the YAML can be converted to a worker config, but as of now 'travis-build' doesn't work out of the box. There is a new tool for validating travis YAML files 'travis-yml', but as of now it's a ruby-only library and it's still a work in progress. 3. Running Travis CI task based on the generated YAML. This seems the best approach, however since cookiecutter-django itself uses Travis CI, that would require running Travis CI from within Travis CI. Scheduling Travis CI job without a github push still requires a public github repo, which is something that we can't generate on demand. Given that I'm opting to use approach 1. * Adds missing config to generated .travis.yml The keys added are as follows: 1. 'script' Required by Travis, cookiecutter-django used to provide it until it has been removed together with hitch. I'm assuming hitch has been replaced with pytest, I'm setting pytest as the new value for the 'script' key. 2. 'install' Not required by Travis, but necessary in our case; installs test libraries, mostly pytest. As of now this points to 'local.txt' requirements file. There used to be a separate 'test.txt' requirements file but it has been decided to merge it with 'local.txt', see discussion in https://github.com/pydanny/cookiecutter-django/pull/1557 . * Update CONTRIBUTORS.rst
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result = cookies.bake(extra_context=context)
assert result.exit_code == 0
assert result.exception is None
assert result.project_path.name == context["project_slug"]
assert result.project_path.is_dir()
Add missing `script` key to Travis CI config (#1950) * Add failing test for travis.yml I see three options to test travis.yml : 1. Testing that the YAML contains relevant value. Least useful and least reliable, but simplest to implement. 2. Testing that the YAML is valid TravisCI YAML. Unfortunately this is difficult / impossible. Doing 'travis lint' would succeed, this command does not check for 'script' key presence and wouldn't be useful for us. We could use 'travis-build' to verify that the YAML can be converted to a worker config, but as of now 'travis-build' doesn't work out of the box. There is a new tool for validating travis YAML files 'travis-yml', but as of now it's a ruby-only library and it's still a work in progress. 3. Running Travis CI task based on the generated YAML. This seems the best approach, however since cookiecutter-django itself uses Travis CI, that would require running Travis CI from within Travis CI. Scheduling Travis CI job without a github push still requires a public github repo, which is something that we can't generate on demand. Given that I'm opting to use approach 1. * Adds missing config to generated .travis.yml The keys added are as follows: 1. 'script' Required by Travis, cookiecutter-django used to provide it until it has been removed together with hitch. I'm assuming hitch has been replaced with pytest, I'm setting pytest as the new value for the 'script' key. 2. 'install' Not required by Travis, but necessary in our case; installs test libraries, mostly pytest. As of now this points to 'local.txt' requirements file. There used to be a separate 'test.txt' requirements file but it has been decided to merge it with 'local.txt', see discussion in https://github.com/pydanny/cookiecutter-django/pull/1557 . * Update CONTRIBUTORS.rst
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with open(f"{result.project_path}/.travis.yml") as travis_yml:
Add missing `script` key to Travis CI config (#1950) * Add failing test for travis.yml I see three options to test travis.yml : 1. Testing that the YAML contains relevant value. Least useful and least reliable, but simplest to implement. 2. Testing that the YAML is valid TravisCI YAML. Unfortunately this is difficult / impossible. Doing 'travis lint' would succeed, this command does not check for 'script' key presence and wouldn't be useful for us. We could use 'travis-build' to verify that the YAML can be converted to a worker config, but as of now 'travis-build' doesn't work out of the box. There is a new tool for validating travis YAML files 'travis-yml', but as of now it's a ruby-only library and it's still a work in progress. 3. Running Travis CI task based on the generated YAML. This seems the best approach, however since cookiecutter-django itself uses Travis CI, that would require running Travis CI from within Travis CI. Scheduling Travis CI job without a github push still requires a public github repo, which is something that we can't generate on demand. Given that I'm opting to use approach 1. * Adds missing config to generated .travis.yml The keys added are as follows: 1. 'script' Required by Travis, cookiecutter-django used to provide it until it has been removed together with hitch. I'm assuming hitch has been replaced with pytest, I'm setting pytest as the new value for the 'script' key. 2. 'install' Not required by Travis, but necessary in our case; installs test libraries, mostly pytest. As of now this points to 'local.txt' requirements file. There used to be a separate 'test.txt' requirements file but it has been decided to merge it with 'local.txt', see discussion in https://github.com/pydanny/cookiecutter-django/pull/1557 . * Update CONTRIBUTORS.rst
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try:
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yml = yaml.safe_load(travis_yml)["jobs"]["include"]
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assert yml[0]["script"] == ["ruff check ."]
assert yml[1]["script"] == [expected_test_script]
Add missing `script` key to Travis CI config (#1950) * Add failing test for travis.yml I see three options to test travis.yml : 1. Testing that the YAML contains relevant value. Least useful and least reliable, but simplest to implement. 2. Testing that the YAML is valid TravisCI YAML. Unfortunately this is difficult / impossible. Doing 'travis lint' would succeed, this command does not check for 'script' key presence and wouldn't be useful for us. We could use 'travis-build' to verify that the YAML can be converted to a worker config, but as of now 'travis-build' doesn't work out of the box. There is a new tool for validating travis YAML files 'travis-yml', but as of now it's a ruby-only library and it's still a work in progress. 3. Running Travis CI task based on the generated YAML. This seems the best approach, however since cookiecutter-django itself uses Travis CI, that would require running Travis CI from within Travis CI. Scheduling Travis CI job without a github push still requires a public github repo, which is something that we can't generate on demand. Given that I'm opting to use approach 1. * Adds missing config to generated .travis.yml The keys added are as follows: 1. 'script' Required by Travis, cookiecutter-django used to provide it until it has been removed together with hitch. I'm assuming hitch has been replaced with pytest, I'm setting pytest as the new value for the 'script' key. 2. 'install' Not required by Travis, but necessary in our case; installs test libraries, mostly pytest. As of now this points to 'local.txt' requirements file. There used to be a separate 'test.txt' requirements file but it has been decided to merge it with 'local.txt', see discussion in https://github.com/pydanny/cookiecutter-django/pull/1557 . * Update CONTRIBUTORS.rst
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except yaml.YAMLError as e:
pytest.fail(str(e))
@pytest.mark.parametrize(
["use_docker", "expected_test_script"],
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[
("n", "pytest"),
("y", "docker compose -f local.yml run django pytest"),
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],
)
def test_gitlab_invokes_precommit_and_pytest(cookies, context, use_docker, expected_test_script):
context.update({"ci_tool": "Gitlab", "use_docker": use_docker})
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result = cookies.bake(extra_context=context)
assert result.exit_code == 0
assert result.exception is None
assert result.project_path.name == context["project_slug"]
assert result.project_path.is_dir()
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with open(f"{result.project_path}/.gitlab-ci.yml") as gitlab_yml:
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try:
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gitlab_config = yaml.safe_load(gitlab_yml)
assert gitlab_config["precommit"]["script"] == [
"pre-commit run --show-diff-on-failure --color=always --all-files"
]
assert gitlab_config["pytest"]["script"] == [expected_test_script]
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except yaml.YAMLError as e:
pytest.fail(e)
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@pytest.mark.parametrize(
["use_docker", "expected_test_script"],
[
("n", "pytest"),
("y", "docker compose -f local.yml run django pytest"),
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],
)
def test_github_invokes_linter_and_pytest(cookies, context, use_docker, expected_test_script):
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context.update({"ci_tool": "Github", "use_docker": use_docker})
result = cookies.bake(extra_context=context)
assert result.exit_code == 0
assert result.exception is None
assert result.project_path.name == context["project_slug"]
assert result.project_path.is_dir()
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with open(f"{result.project_path}/.github/workflows/ci.yml") as github_yml:
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try:
github_config = yaml.safe_load(github_yml)
linter_present = False
for action_step in github_config["jobs"]["linter"]["steps"]:
if action_step.get("uses", "NA").startswith("pre-commit"):
linter_present = True
assert linter_present
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expected_test_script_present = False
for action_step in github_config["jobs"]["pytest"]["steps"]:
if action_step.get("run") == expected_test_script:
expected_test_script_present = True
assert expected_test_script_present
except yaml.YAMLError as e:
pytest.fail(e)
@pytest.mark.parametrize("slug", ["project slug", "Project_Slug"])
def test_invalid_slug(cookies, context, slug):
"""Invalid slug should fail pre-generation hook."""
context.update({"project_slug": slug})
result = cookies.bake(extra_context=context)
assert result.exit_code != 0
assert isinstance(result.exception, FailedHookException)
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@pytest.mark.parametrize("invalid_context", UNSUPPORTED_COMBINATIONS)
def test_error_if_incompatible(cookies, context, invalid_context):
"""It should not generate project an incompatible combination is selected."""
context.update(invalid_context)
result = cookies.bake(extra_context=context)
assert result.exit_code != 0
assert isinstance(result.exception, FailedHookException)
@pytest.mark.parametrize(
["editor", "pycharm_docs_exist"],
[
("None", False),
("PyCharm", True),
("VS Code", False),
],
)
def test_pycharm_docs_removed(cookies, context, editor, pycharm_docs_exist):
context.update({"editor": editor})
result = cookies.bake(extra_context=context)
with open(f"{result.project_path}/docs/index.rst") as f:
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has_pycharm_docs = "pycharm/configuration" in f.read()
assert has_pycharm_docs is pycharm_docs_exist
def test_trim_domain_email(cookies, context):
"""Check that leading and trailing spaces are trimmed in domain and email."""
context.update(
{
"use_docker": "y",
"domain_name": " example.com ",
"email": " me@example.com ",
}
)
result = cookies.bake(extra_context=context)
assert result.exit_code == 0
prod_django_env = result.project_path / ".envs" / ".production" / ".django"
assert "DJANGO_ALLOWED_HOSTS=.example.com" in prod_django_env.read_text()
base_settings = result.project_path / "config" / "settings" / "base.py"
assert '"me@example.com"' in base_settings.read_text()