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Add tests to verify yaml output validity
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* Modify License.dump() to dump yaml safe text
* Add tests to verify yaml output validity
* Add checks to License.validate() for yaml validity of text

Signed-off-by: Ayan Sinha Mahapatra <ayansmahapatra@gmail.com>
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AyanSinhaMahapatra committed Apr 4, 2023
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21 changes: 21 additions & 0 deletions src/licensedcode/models.py
Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,8 @@
from licensedcode._vendor import attr
from license_expression import ExpressionError
from license_expression import Licensing
from saneyaml import load as yaml_load
from saneyaml import dump as yaml_dump

from commoncode.fileutils import file_base_name
from commoncode.fileutils import file_name
Expand Down Expand Up @@ -479,6 +481,8 @@ def dump(self, licenses_data_dir):
"""
metadata = self.to_dict(include_builtin=False)
content = self.text
# We add a space to empty newlines to make this text YAML safe
content = get_yaml_safe_text(content)
output = dumps_frontmatter(content=content, metadata=metadata)
license_file = self.license_file(licenses_data_dir=licenses_data_dir)
with open(license_file, 'w') as of:
Expand Down Expand Up @@ -658,6 +662,12 @@ def validate(licenses, verbose=False, no_dupe_urls=False):
# local text consistency
text = lic.text

data = {"text": text}
# We are testing whether we can dump as yaml and load from yaml
# without failing (i.e. whether the text is yaml safe)
yaml_string = yaml_dump(data, indent=4)
loaded_yaml = yaml_load(yaml_string)

license_itokens = tuple(index_tokenizer(text))
if not license_itokens:
info('No license text')
Expand Down Expand Up @@ -737,6 +747,17 @@ def validate(licenses, verbose=False, no_dupe_urls=False):
return errors, warnings, infos


def get_yaml_safe_text(text):

data = {"text": text}
yaml_string = yaml_dump(data, indent=4)
try:
loaded_yaml = yaml_load(yaml_string)
except Exception:
text = text.replace('\n\n', '\n \n')
return text


def ignore_editor_tmp_files(location):
return location.endswith('.swp')

Expand Down
1,208 changes: 1,208 additions & 0 deletions tests/formattedcode/data/yaml/package-and-licenses-expected.yaml

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5 changes: 5 additions & 0 deletions tests/formattedcode/data/yaml/package-and-licenses/README.txt
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@@ -0,0 +1,5 @@
Sample code

This is licensed under Apache-2.0 or MIT

Copyright Example Corp.
202 changes: 202 additions & 0 deletions tests/formattedcode/data/yaml/package-and-licenses/apache-2.0.LICENSE
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@@ -0,0 +1,202 @@

Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/

TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

1. Definitions.

"License" shall mean the terms and conditions for use, reproduction,
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19 changes: 19 additions & 0 deletions tests/formattedcode/data/yaml/package-and-licenses/mit.LICENSE
Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
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The above copyright notice and this permission notice shall be
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
4 changes: 4 additions & 0 deletions tests/formattedcode/data/yaml/package-and-licenses/setup.cfg
Original file line number Diff line number Diff line change
@@ -0,0 +1,4 @@
[metadata]
name = codebase
author = Example Corp.
license = Apache-2.0
45 changes: 38 additions & 7 deletions tests/formattedcode/test_output_yaml.py
Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@

from scancode.cli_test_utils import cleanup_scan
from scancode.cli_test_utils import run_scan_click
from scancode.cli_test_utils import remove_uuid_from_scan
from scancode_config import REGEN_TEST_FIXTURES


Expand Down Expand Up @@ -51,8 +52,26 @@ def test_scan_output_for_timestamp():
assert 'start_timestamp' in header
assert 'end_timestamp' in header

def test_scan_produces_valid_yaml():
test_dir = test_env.get_test_loc('yaml/package-and-licenses')
result_file = test_env.get_temp_file('json')
args = [
'-clipeu', '--license-text', '--classify', '--summary', '--license-references',
'--license-clarity-score', test_dir, '--yaml', result_file]
run_scan_click(args)
expected = test_env.get_test_loc('yaml/package-and-licenses-expected.yaml')
check_yaml_scan(expected, result_file, regen=REGEN_TEST_FIXTURES)
data = saneyaml.load(open(result_file).read())


def check_yaml_scan(expected_file, result_file, regen=REGEN_TEST_FIXTURES):
def check_yaml_scan(
expected_file,
result_file,
regen=REGEN_TEST_FIXTURES,
remove_file_date=True,
check_headers=False,
remove_uuid=True,
):
"""
Check the scan `result_file` YAML results against the `expected_file`
expected YAML results.
Expand All @@ -61,15 +80,27 @@ def check_yaml_scan(expected_file, result_file, regen=REGEN_TEST_FIXTURES):
results from `results_file`. This is convenient for updating tests
expectations. But use with caution.
"""
results = load_yaml_results(result_file) or {}
results = load_yaml_results(
location=result_file,
remove_file_date=remove_file_date,
) or {}
if remove_uuid:
results = remove_uuid_from_scan(results)

if regen:
with open(expected_file, 'w') as reg:
reg.write(saneyaml.dump(results))

expected = load_yaml_results(expected_file)
expected = load_yaml_results(
location=expected_file,
remove_file_date=remove_file_date,
)
if remove_uuid:
expected = remove_uuid_from_scan(expected)

results.pop('headers', None)
expected.pop('headers', None)
if not check_headers:
results.pop('headers', None)
expected.pop('headers', None)

# NOTE we redump the YAML as a string for a more efficient display of the
# failures comparison/diff
Expand All @@ -78,7 +109,7 @@ def check_yaml_scan(expected_file, result_file, regen=REGEN_TEST_FIXTURES):
assert results == expected


def load_yaml_results(location):
def load_yaml_results(location, remove_file_date=True):
"""
Load the YAML scan results file at `location`.
To help with test resilience against small changes some attributes are
Expand All @@ -88,4 +119,4 @@ def load_yaml_results(location):
with open(location, encoding='utf-8') as res:
scan_results = res.read()
scan_results = saneyaml.load(scan_results)
return cleanup_scan(scan_results, remove_file_date=True)
return cleanup_scan(scan_results, remove_file_date=remove_file_date)
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