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# SPDX-License-Identifier: GPL-2.0+
#
# Copyright (c) 2016 Google, Inc
#
from contextlib import contextmanager
import glob
import multiprocessing
import os
import sys
import unittest
from patman import command
from io import StringIO
use_concurrent = True
try:
from concurrencytest import ConcurrentTestSuite, fork_for_tests
except:
use_concurrent = False
def RunTestCoverage(prog, filter_fname, exclude_list, build_dir, required=None,
extra_args=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
extra_args (str): Extra arguments to pass to the tool before the -t/test
arg
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 or 'patman' in prog else '-t'
prefix = ''
if build_dir:
prefix = 'PYTHONPATH=$PYTHONPATH:%s/sandbox_spl/tools ' % build_dir
cmd = ('%spython3-coverage run '
'--omit "%s" %s %s %s -P1' % (prefix, ','.join(glob_list),
prog, extra_args or '', test_cmd))
os.system(cmd)
stdout = command.Output('python3-coverage', '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 'python3-coverage html' to get a report in "
'htmlcov/index.html')
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
def ReportResult(toolname:str, test_name: str, result: unittest.TestResult):
"""Report the results from a suite of tests
Args:
toolname: Name of the tool that ran the tests
test_name: Name of test that was run, or None for all
result: A unittest.TestResult object containing the results
"""
# Remove errors which just indicate a missing test. Since Python v3.5 If an
# ImportError or AttributeError occurs while traversing name then a
# synthetic test that raises that error when run will be returned. These
# errors are included in the errors accumulated by result.errors.
if test_name:
errors = []
for test, err in result.errors:
if ("has no attribute '%s'" % test_name) not in err:
errors.append((test, err))
result.testsRun -= 1
result.errors = errors
print(result)
for test, err in result.errors:
print(test.id(), err)
for test, err in result.failures:
print(err, result.failures)
if result.skipped:
print('%d %s test%s SKIPPED:' % (len(result.skipped), toolname,
's' if len(result.skipped) > 1 else ''))
for skip_info in result.skipped:
print('%s: %s' % (skip_info[0], skip_info[1]))
if result.errors or result.failures:
print('%s tests FAILED' % toolname)
return 1
return 0
def RunTestSuites(result, debug, verbosity, test_preserve_dirs, processes,
test_name, toolpath, test_class_list):
"""Run a series of test suites and collect the results
Args:
result: A unittest.TestResult object to add the results to
debug: True to enable debugging, which shows a full stack trace on error
verbosity: Verbosity level to use (0-4)
test_preserve_dirs: True to preserve the input directory used by tests
so that it can be examined afterwards (only useful for debugging
tests). If a single test is selected (in args[0]) it also preserves
the output directory for this test. Both directories are displayed
on the command line.
processes: Number of processes to use to run tests (None=same as #CPUs)
test_name: Name of test to run, or None for all
toolpath: List of paths to use for tools
test_class_list: List of test classes to run
"""
for module in []:
suite = doctest.DocTestSuite(module)
suite.run(result)
sys.argv = [sys.argv[0]]
if debug:
sys.argv.append('-D')
if verbosity:
sys.argv.append('-v%d' % verbosity)
if toolpath:
for path in toolpath:
sys.argv += ['--toolpath', path]
suite = unittest.TestSuite()
loader = unittest.TestLoader()
for module in test_class_list:
# Test the test module about our arguments, if it is interested
if hasattr(module, 'setup_test_args'):
setup_test_args = getattr(module, 'setup_test_args')
setup_test_args(preserve_indir=test_preserve_dirs,
preserve_outdirs=test_preserve_dirs and test_name is not None,
toolpath=toolpath, verbosity=verbosity)
if test_name:
try:
suite.addTests(loader.loadTestsFromName(test_name, module))
except AttributeError:
continue
else:
suite.addTests(loader.loadTestsFromTestCase(module))
if use_concurrent and processes != 1:
concurrent_suite = ConcurrentTestSuite(suite,
fork_for_tests(processes or multiprocessing.cpu_count()))
concurrent_suite.run(result)
else:
suite.run(result)
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