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- # SPDX-License-Identifier: GPL-2.0+
- #
- # Copyright (c) 2016 Google, Inc
- #
- from contextlib import contextmanager
- import glob
- import os
- import sys
- import command
- from io import StringIO
- PYTHON = 'python%d' % sys.version_info[0]
- def RunTestCoverage(prog, filter_fname, exclude_list, build_dir, required=None):
- """Run tests and check that we get 100% coverage
- Args:
- prog: Program to run (with be passed a '-t' argument to run tests
- filter_fname: Normally all *.py files in the program's directory will
- be included. If this is not None, then it is used to filter the
- list so that only filenames that don't contain filter_fname are
- included.
- exclude_list: List of file patterns to exclude from the coverage
- calculation
- build_dir: Build directory, used to locate libfdt.py
- required: List of modules which must be in the coverage report
- Raises:
- ValueError if the code coverage is not 100%
- """
- # This uses the build output from sandbox_spl to get _libfdt.so
- path = os.path.dirname(prog)
- if filter_fname:
- glob_list = glob.glob(os.path.join(path, '*.py'))
- glob_list = [fname for fname in glob_list if filter_fname in fname]
- else:
- glob_list = []
- glob_list += exclude_list
- glob_list += ['*libfdt.py', '*site-packages*', '*dist-packages*']
- test_cmd = 'test' if 'binman' in prog else '-t'
- cmd = ('PYTHONPATH=$PYTHONPATH:%s/sandbox_spl/tools %s-coverage run '
- '--omit "%s" %s %s -P1' % (build_dir, PYTHON, ','.join(glob_list),
- prog, test_cmd))
- os.system(cmd)
- stdout = command.Output('%s-coverage' % PYTHON, 'report')
- lines = stdout.splitlines()
- if required:
- # Convert '/path/to/name.py' just the module name 'name'
- test_set = set([os.path.splitext(os.path.basename(line.split()[0]))[0]
- for line in lines if '/etype/' in line])
- missing_list = required
- missing_list.discard('__init__')
- missing_list.difference_update(test_set)
- if missing_list:
- print('Missing tests for %s' % (', '.join(missing_list)))
- print(stdout)
- ok = False
- coverage = lines[-1].split(' ')[-1]
- ok = True
- print(coverage)
- if coverage != '100%':
- print(stdout)
- print("Type '%s-coverage html' to get a report in "
- 'htmlcov/index.html' % PYTHON)
- print('Coverage error: %s, but should be 100%%' % coverage)
- ok = False
- if not ok:
- raise ValueError('Test coverage failure')
- # Use this to suppress stdout/stderr output:
- # with capture_sys_output() as (stdout, stderr)
- # ...do something...
- @contextmanager
- def capture_sys_output():
- capture_out, capture_err = StringIO(), StringIO()
- old_out, old_err = sys.stdout, sys.stderr
- try:
- sys.stdout, sys.stderr = capture_out, capture_err
- yield capture_out, capture_err
- finally:
- sys.stdout, sys.stderr = old_out, old_err
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