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# Copyright 2010 Canonical Ltd. This software is licensed under the
# GNU Affero General Public License version 3 (see the file LICENSE).
"""Parallel test glue."""
__metaclass__ = type
from StringIO import StringIO
import subprocess
import tempfile
from fixtures import (
PopenFixture,
TestWithFixtures,
)
from testtools import (
TestCase,
TestResult,
)
from lp.services.testing.parallel import (
find_load_list,
find_tests,
ListTestCase,
prepare_argv,
)
class TestListTestCase(TestCase, TestWithFixtures):
def test_run(self):
# ListTestCase.run should run bin/test adding in --subunit,
# --load-list, with a list file containing the supplied list ids.
def check_list_file(info):
"""Callback from subprocess.Popen for testing run()."""
# A temp file should have been made.
args = info['args']
load_list = find_load_list(args)
self.assertNotEqual(None, load_list)
with open(load_list, 'rt') as testlist:
contents = testlist.readlines()
self.assertEqual(['foo\n', 'bar\n'], contents)
return {'stdout': StringIO(''), 'stdin': StringIO()}
popen = self.useFixture(PopenFixture(check_list_file))
case = ListTestCase(['foo', 'bar'], ['bin/test'])
self.assertEqual([], popen.procs)
result = TestResult()
case.run(result)
self.assertEqual(0, result.testsRun)
self.assertEqual(1, len(popen.procs))
self.assertEqual(['bin/test', '--subunit', '--load-list'],
popen.procs[0]._args['args'][:-1])
class TestUtilities(TestCase, TestWithFixtures):
def test_prepare_argv_removes_subunit(self):
self.assertEqual(
['bin/test', 'foo'],
prepare_argv(['bin/test', '--subunit', 'foo']))
def test_prepare_argv_removes_parallel(self):
self.assertEqual(
['bin/test', 'foo'],
prepare_argv(['bin/test', '--parallel', 'foo']))
def test_prepare_argv_removes_load_list_with_equals(self):
self.assertEqual(
['bin/test', 'foo'],
prepare_argv(['bin/test', '--load-list=Foo', 'foo']))
def test_prepare_argv_removes_load_2_arg_form(self):
self.assertEqual(
['bin/test', 'foo'],
prepare_argv(['bin/test', '--load-list', 'Foo', 'foo']))
def test_find_tests_honours_list_list_equals(self):
with tempfile.NamedTemporaryFile() as listfile:
listfile.write('foo\nbar\n')
listfile.flush()
self.assertEqual(
['foo', 'bar'],
find_tests(
['bin/test', '--load-list=%s' % listfile.name, 'foo']))
def test_find_tests_honours_list_list_two_arg_form(self):
with tempfile.NamedTemporaryFile() as listfile:
listfile.write('foo\nbar\n')
listfile.flush()
self.assertEqual(
['foo', 'bar'],
find_tests(
['bin/test', '--load-list', listfile.name, 'foo']))
def test_find_tests_live(self):
# When --load-tests wasn't supplied, find_tests needs to run bin/test
# with --list-tests and --subunit, and parse the resulting subunit
# stream.
def inject_testlist(args):
self.assertEqual(subprocess.PIPE, args['stdin'])
self.assertEqual(subprocess.PIPE, args['stdout'])
self.assertEqual(
['bin/test', '-vt', 'filter', '--list-tests', '--subunit'],
args['args'])
return {'stdin': StringIO(), 'stdout': StringIO(u"""\
test: quux
successful: quux
test: glom
successful: glom
""")}
self.useFixture(PopenFixture(inject_testlist))
self.assertEqual(
['quux', 'glom'],
find_tests(['bin/test', '-vt', 'filter', '--parallel']))
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