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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
import argparse
import sys
import traceback
import types
import six
from mozlog import commandline, get_default_logger
class TestAssertion(Exception):
pass
def assert_equals(a, b):
if a != b:
raise TestAssertion("%r not equal to %r" % (a, b))
def expected(status):
def inner(f):
def test_func():
f()
test_func.__name__ = f.__name__
test_func._expected = status
return test_func
return inner
def test_that_passes():
assert_equals(1, int("1"))
def test_that_fails():
assert_equals(1, int("2"))
def test_that_has_an_error():
assert_equals(2, 1 + "1")
@expected("FAIL")
def test_expected_fail():
assert_equals(2 + 2, 5)
class TestRunner(object):
def __init__(self):
self.logger = get_default_logger(component="TestRunner")
def gather_tests(self):
for item in six.itervalues(globals()):
if isinstance(item, types.FunctionType) and item.__name__.startswith(
"test_"
):
yield item.__name__, item
def run(self):
tests = list(self.gather_tests())
self.logger.suite_start(tests=[name for name, func in tests])
self.logger.info("Running tests")
for name, func in tests:
self.run_test(name, func)
self.logger.suite_end()
def run_test(self, name, func):
self.logger.test_start(name)
status = None
message = None
expected = func._expected if hasattr(func, "_expected") else "PASS"
try:
func()
except TestAssertion as e:
status = "FAIL"
message = str(e)
except Exception:
status = "ERROR"
message = traceback.format_exc()
else:
status = "PASS"
self.logger.test_end(name, status=status, expected=expected, message=message)
def get_parser():
parser = argparse.ArgumentParser()
return parser
def main():
parser = get_parser()
commandline.add_logging_group(parser)
args = parser.parse_args()
logger = commandline.setup_logging("structured-example", args, {"raw": sys.stdout})
runner = TestRunner()
try:
runner.run()
except Exception:
logger.critical("Error during test run:\n%s" % traceback.format_exc())
if __name__ == "__main__":
main()
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