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