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238 lines (180 loc) · 8.04 KB
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import pytest
def test_unknown_strategy_forbidden(testdir):
testdir.makepyfile("""
import pytest
@pytest.mark.mp_group(group='TestGroup', strategy='unknown')
@pytest.mark.parametrize('val', range(1, 6))
def test_two(val):
assert True
""")
result = testdir.runpytest('--mp')
result.stdout.fnmatch_lines(['*Exception: Unknown strategy unknown',
'*= no tests ran in * seconds =*'])
assert result.ret == 3
def test_conflicting_strategy_forbidden(testdir):
testdir.makepyfile("""
import pytest
@pytest.mark.mp_group('TestGroup')
@pytest.mark.parametrize('val', range(1, 6))
def test_one(val):
assert val
@pytest.mark.mp_group(group='TestGroup', strategy='serial')
@pytest.mark.parametrize('val', range(1, 6))
def test_two(val):
assert True
""")
result = testdir.runpytest('--mp')
result.stdout.fnmatch_lines(['*Exception: TestGroup already has specified strategy free.',
'*= no tests ran in * seconds =*'])
assert result.ret == 3
def test_free(testdir):
"""Confirms that there is no shared state in any test running free strategy
"""
testdir.makepyfile("""
import pytest
shared_state = dict() # Should always be empty w/ free
@pytest.mark.mp_group('TestGroup', 'free')
@pytest.mark.parametrize('val', range(0, 5))
def test_one(val):
assert not shared_state
shared_state['test_one_destructive'] = True
shared_state['all_destructive'] = True
@pytest.mark.mp_group(group='TestGroupTwo')
@pytest.mark.parametrize('val', range(0, 5))
def test_two(val):
assert not shared_state
shared_state['test_two_destructive'] = True
shared_state['all_destructive'] = True
@pytest.mark.mp_group('TestGroupThree', strategy='free')
@pytest.mark.parametrize('val', range(0, 5))
def test_three(val):
assert not shared_state
shared_state['test_three_destructive'] = True
shared_state['all_destructive'] = True
""")
result = testdir.runpytest('--mp')
result.assert_outcomes(passed=15)
def test_serial(testdir):
"""Confirms that there is only shared state in groups using serial strategy
This is an unintuitive testing approach in that it only checks for side effects.
"""
testdir.makepyfile("""
import pytest
shared_state = dict() # Should only contain group's state changes w/ serial
@pytest.mark.mp_group('TestGroup', 'serial')
@pytest.mark.parametrize('val', range(0, 5))
def test_one(val):
assert 'test_two_destructive' not in shared_state
assert 'test_three_destructive' not in shared_state
if val == 0:
shared_state['test_one_destructive'] = True
else:
assert 'test_one_destructive' in shared_state
@pytest.mark.mp_group('TestGroupTwo', strategy='serial')
@pytest.mark.parametrize('val', range(0, 5))
def test_two(val):
assert 'test_one_destructive' not in shared_state
assert 'test_three_destructive' not in shared_state
if val == 0:
shared_state['test_two_destructive'] = True
else:
assert 'test_two_destructive' in shared_state
@pytest.mark.mp_group(group='TestGroupThree', strategy='serial')
@pytest.mark.parametrize('val', range(0, 5))
def test_three(val):
assert 'test_one_destructive' not in shared_state
assert 'test_two_destructive' not in shared_state
if val == 0:
shared_state['test_three_destructive'] = True
else:
assert 'test_three_destructive' in shared_state
""")
result = testdir.runpytest('--mp')
result.assert_outcomes(passed=15)
def test_isolated_free(testdir):
testdir.makepyfile("""
import pytest
shared_state = dict() # Should always be empty in free strategy
@pytest.mark.mp_group('TestGroup', 'isolated_free')
@pytest.mark.parametrize('val', range(0, 5))
def test_one(val):
assert not shared_state
shared_state['test_one_destructive'] = True
shared_state['all_destructive'] = True
@pytest.mark.mp_group('TestGroupTwo', strategy='isolated_free')
@pytest.mark.parametrize('val', range(0, 5))
def test_two(val):
assert not shared_state
shared_state['test_two_destructive'] = True
shared_state['all_destructive'] = True
@pytest.mark.mp_group(group='TestGroupThree', strategy='isolated_free')
@pytest.mark.parametrize('val', range(0, 5))
def test_three(val):
assert not shared_state
shared_state['test_three_destructive'] = True
shared_state['all_destructive'] = True
""")
result = testdir.runpytest('--mp')
result.assert_outcomes(passed=15)
def test_isolated_serial(testdir):
testdir.makepyfile("""
import pytest
shared_state = dict() # Should only contain group's state changes w/ serial
@pytest.mark.mp_group('TestGroup', 'isolated_serial')
@pytest.mark.parametrize('val', range(0, 5))
def test_one(val):
assert 'test_two_destructive' not in shared_state
assert 'test_three_destructive' not in shared_state
if val == 0:
shared_state['test_one_destructive'] = True
else:
assert 'test_one_destructive' in shared_state
@pytest.mark.mp_group('TestGroupTwo', strategy='isolated_serial')
@pytest.mark.parametrize('val', range(0, 5))
def test_two(val):
assert 'test_one_destructive' not in shared_state
assert 'test_three_destructive' not in shared_state
if val == 0:
shared_state['test_two_destructive'] = True
else:
assert 'test_two_destructive' in shared_state
@pytest.mark.mp_group(group='TestGroupThree', strategy='isolated_serial')
@pytest.mark.parametrize('val', range(0, 5))
def test_three(val):
assert 'test_one_destructive' not in shared_state
assert 'test_two_destructive' not in shared_state
if val == 0:
shared_state['test_three_destructive'] = True
else:
assert 'test_three_destructive' in shared_state
""")
result = testdir.runpytest('--mp')
result.assert_outcomes(passed=15)
@pytest.mark.parametrize("c", range(0, 10))
@pytest.mark.parametrize("strategy1", ["isolated_free", "isolated_serial"])
@pytest.mark.parametrize("strategy2", ["free", "serial", "isolated_free", "isolated_serial"])
def test_isolated_with_another_strategy(c, strategy1, strategy2, testdir, tmpdir):
testdir.makepyfile("""
import pytest
import py, time, random
@pytest.mark.mp_group('TestGroup1', '{strategy1}')
def test_strategy1():
tempdir = py.path.local('{tmpdir_path}')
assert len(tempdir.listdir()) == 0, tempdir.listdir()
newdir = tempdir.mkdir('strategy1')
time.sleep(random.random()*0.1)
assert len(tempdir.listdir()) == 1, tempdir.listdir()
time.sleep(random.random()*0.1)
newdir.remove()
@pytest.mark.mp_group('TestGroup2', '{strategy2}')
def test_strategy2():
tempdir = py.path.local('{tmpdir_path}')
assert len(tempdir.listdir()) == 0, tempdir.listdir()
newdir = tempdir.mkdir('strategy2')
time.sleep(random.random()*0.1)
assert len(tempdir.listdir()) == 1, tempdir.listdir()
time.sleep(random.random()*0.1)
newdir.remove()
""".format(tmpdir_path=tmpdir.strpath, strategy1=strategy1, strategy2=strategy2))
result = testdir.runpytest('--mp', '--np=2')
result.assert_outcomes(passed=2)