test_ok2/testing/test_cache.py

606 lines
20 KiB
Python
Executable File

from __future__ import absolute_import, division, print_function
import sys
import py
import _pytest
import pytest
import os
import shutil
pytest_plugins = "pytester",
class TestNewAPI(object):
def test_config_cache_makedir(self, testdir):
testdir.makeini("[pytest]")
config = testdir.parseconfigure()
with pytest.raises(ValueError):
config.cache.makedir("key/name")
p = config.cache.makedir("name")
assert p.check()
def test_config_cache_dataerror(self, testdir):
testdir.makeini("[pytest]")
config = testdir.parseconfigure()
cache = config.cache
pytest.raises(TypeError, lambda: cache.set("key/name", cache))
config.cache.set("key/name", 0)
config.cache._getvaluepath("key/name").write("123invalid")
val = config.cache.get("key/name", -2)
assert val == -2
def test_cache_writefail_cachfile_silent(self, testdir):
testdir.makeini("[pytest]")
testdir.tmpdir.join('.cache').write('gone wrong')
config = testdir.parseconfigure()
cache = config.cache
cache.set('test/broken', [])
@pytest.mark.skipif(sys.platform.startswith('win'), reason='no chmod on windows')
def test_cache_writefail_permissions(self, testdir):
testdir.makeini("[pytest]")
testdir.tmpdir.ensure_dir('.cache').chmod(0)
config = testdir.parseconfigure()
cache = config.cache
cache.set('test/broken', [])
@pytest.mark.skipif(sys.platform.startswith('win'), reason='no chmod on windows')
def test_cache_failure_warns(self, testdir):
testdir.tmpdir.ensure_dir('.cache').chmod(0)
testdir.makepyfile("""
def test_error():
raise Exception
""")
result = testdir.runpytest('-rw')
assert result.ret == 1
result.stdout.fnmatch_lines([
"*could not create cache path*",
"*1 warnings*",
])
def test_config_cache(self, testdir):
testdir.makeconftest("""
def pytest_configure(config):
# see that we get cache information early on
assert hasattr(config, "cache")
""")
testdir.makepyfile("""
def test_session(pytestconfig):
assert hasattr(pytestconfig, "cache")
""")
result = testdir.runpytest()
assert result.ret == 0
result.stdout.fnmatch_lines(["*1 passed*"])
def test_cachefuncarg(self, testdir):
testdir.makepyfile("""
import pytest
def test_cachefuncarg(cache):
val = cache.get("some/thing", None)
assert val is None
cache.set("some/thing", [1])
pytest.raises(TypeError, lambda: cache.get("some/thing"))
val = cache.get("some/thing", [])
assert val == [1]
""")
result = testdir.runpytest()
assert result.ret == 0
result.stdout.fnmatch_lines(["*1 passed*"])
def test_custom_rel_cache_dir(self, testdir):
rel_cache_dir = os.path.join('custom_cache_dir', 'subdir')
testdir.makeini("""
[pytest]
cache_dir = {cache_dir}
""".format(cache_dir=rel_cache_dir))
testdir.makepyfile(test_errored='def test_error():\n assert False')
testdir.runpytest()
assert testdir.tmpdir.join(rel_cache_dir).isdir()
def test_custom_abs_cache_dir(self, testdir, tmpdir_factory):
tmp = str(tmpdir_factory.mktemp('tmp'))
abs_cache_dir = os.path.join(tmp, 'custom_cache_dir')
testdir.makeini("""
[pytest]
cache_dir = {cache_dir}
""".format(cache_dir=abs_cache_dir))
testdir.makepyfile(test_errored='def test_error():\n assert False')
testdir.runpytest()
assert py.path.local(abs_cache_dir).isdir()
def test_custom_cache_dir_with_env_var(self, testdir, monkeypatch):
monkeypatch.setenv('env_var', 'custom_cache_dir')
testdir.makeini("""
[pytest]
cache_dir = {cache_dir}
""".format(cache_dir='$env_var'))
testdir.makepyfile(test_errored='def test_error():\n assert False')
testdir.runpytest()
assert testdir.tmpdir.join('custom_cache_dir').isdir()
def test_cache_reportheader(testdir):
testdir.makepyfile("""
def test_hello():
pass
""")
result = testdir.runpytest("-v")
result.stdout.fnmatch_lines([
"cachedir: .cache"
])
def test_cache_show(testdir):
result = testdir.runpytest("--cache-show")
assert result.ret == 0
result.stdout.fnmatch_lines([
"*cache is empty*"
])
testdir.makeconftest("""
def pytest_configure(config):
config.cache.set("my/name", [1,2,3])
config.cache.set("other/some", {1:2})
dp = config.cache.makedir("mydb")
dp.ensure("hello")
dp.ensure("world")
""")
result = testdir.runpytest()
assert result.ret == 5 # no tests executed
result = testdir.runpytest("--cache-show")
result.stdout.fnmatch_lines_random([
"*cachedir:*",
"-*cache values*-",
"*my/name contains:",
" [1, 2, 3]",
"*other/some contains*",
" {*1*: 2}",
"-*cache directories*-",
"*mydb/hello*length 0*",
"*mydb/world*length 0*",
])
class TestLastFailed(object):
def test_lastfailed_usecase(self, testdir, monkeypatch):
monkeypatch.setenv("PYTHONDONTWRITEBYTECODE", 1)
p = testdir.makepyfile("""
def test_1():
assert 0
def test_2():
assert 0
def test_3():
assert 1
""")
result = testdir.runpytest()
result.stdout.fnmatch_lines([
"*2 failed*",
])
p.write(_pytest._code.Source("""
def test_1():
assert 1
def test_2():
assert 1
def test_3():
assert 0
"""))
result = testdir.runpytest("--lf")
result.stdout.fnmatch_lines([
"*2 passed*1 desel*",
])
result = testdir.runpytest("--lf")
result.stdout.fnmatch_lines([
"*1 failed*2 passed*",
])
result = testdir.runpytest("--lf", "--cache-clear")
result.stdout.fnmatch_lines([
"*1 failed*2 passed*",
])
# Run this again to make sure clear-cache is robust
if os.path.isdir('.cache'):
shutil.rmtree('.cache')
result = testdir.runpytest("--lf", "--cache-clear")
result.stdout.fnmatch_lines([
"*1 failed*2 passed*",
])
def test_failedfirst_order(self, testdir):
testdir.tmpdir.join('test_a.py').write(_pytest._code.Source("""
def test_always_passes():
assert 1
"""))
testdir.tmpdir.join('test_b.py').write(_pytest._code.Source("""
def test_always_fails():
assert 0
"""))
result = testdir.runpytest()
# Test order will be collection order; alphabetical
result.stdout.fnmatch_lines([
"test_a.py*",
"test_b.py*",
])
result = testdir.runpytest("--ff")
# Test order will be failing tests firs
result.stdout.fnmatch_lines([
"test_b.py*",
"test_a.py*",
])
def test_lastfailed_failedfirst_order(self, testdir):
testdir.makepyfile(**{
'test_a.py': """
def test_always_passes():
assert 1
""",
'test_b.py': """
def test_always_fails():
assert 0
""",
})
result = testdir.runpytest()
# Test order will be collection order; alphabetical
result.stdout.fnmatch_lines([
"test_a.py*",
"test_b.py*",
])
result = testdir.runpytest("--lf", "--ff")
# Test order will be failing tests firs
result.stdout.fnmatch_lines([
"test_b.py*",
])
assert 'test_a.py' not in result.stdout.str()
def test_lastfailed_difference_invocations(self, testdir, monkeypatch):
monkeypatch.setenv("PYTHONDONTWRITEBYTECODE", 1)
testdir.makepyfile(test_a="""
def test_a1():
assert 0
def test_a2():
assert 1
""", test_b="""
def test_b1():
assert 0
""")
p = testdir.tmpdir.join("test_a.py")
p2 = testdir.tmpdir.join("test_b.py")
result = testdir.runpytest()
result.stdout.fnmatch_lines([
"*2 failed*",
])
result = testdir.runpytest("--lf", p2)
result.stdout.fnmatch_lines([
"*1 failed*",
])
p2.write(_pytest._code.Source("""
def test_b1():
assert 1
"""))
result = testdir.runpytest("--lf", p2)
result.stdout.fnmatch_lines([
"*1 passed*",
])
result = testdir.runpytest("--lf", p)
result.stdout.fnmatch_lines([
"*1 failed*1 desel*",
])
def test_lastfailed_usecase_splice(self, testdir, monkeypatch):
monkeypatch.setenv("PYTHONDONTWRITEBYTECODE", 1)
testdir.makepyfile("""
def test_1():
assert 0
""")
p2 = testdir.tmpdir.join("test_something.py")
p2.write(_pytest._code.Source("""
def test_2():
assert 0
"""))
result = testdir.runpytest()
result.stdout.fnmatch_lines([
"*2 failed*",
])
result = testdir.runpytest("--lf", p2)
result.stdout.fnmatch_lines([
"*1 failed*",
])
result = testdir.runpytest("--lf")
result.stdout.fnmatch_lines([
"*2 failed*",
])
def test_lastfailed_xpass(self, testdir):
testdir.inline_runsource("""
import pytest
@pytest.mark.xfail
def test_hello():
assert 1
""")
config = testdir.parseconfigure()
lastfailed = config.cache.get("cache/lastfailed", -1)
assert lastfailed == -1
def test_non_serializable_parametrize(self, testdir):
"""Test that failed parametrized tests with unmarshable parameters
don't break pytest-cache.
"""
testdir.makepyfile(r"""
import pytest
@pytest.mark.parametrize('val', [
b'\xac\x10\x02G',
])
def test_fail(val):
assert False
""")
result = testdir.runpytest()
result.stdout.fnmatch_lines('*1 failed in*')
def test_terminal_report_lastfailed(self, testdir):
test_a = testdir.makepyfile(test_a="""
def test_a1():
pass
def test_a2():
pass
""")
test_b = testdir.makepyfile(test_b="""
def test_b1():
assert 0
def test_b2():
assert 0
""")
result = testdir.runpytest()
result.stdout.fnmatch_lines([
'collected 4 items',
'*2 failed, 2 passed in*',
])
result = testdir.runpytest('--lf')
result.stdout.fnmatch_lines([
'collected 4 items',
'run-last-failure: rerun previous 2 failures',
'*2 failed, 2 deselected in*',
])
result = testdir.runpytest(test_a, '--lf')
result.stdout.fnmatch_lines([
'collected 2 items',
'run-last-failure: run all (no recorded failures)',
'*2 passed in*',
])
result = testdir.runpytest(test_b, '--lf')
result.stdout.fnmatch_lines([
'collected 2 items',
'run-last-failure: rerun previous 2 failures',
'*2 failed in*',
])
result = testdir.runpytest('test_b.py::test_b1', '--lf')
result.stdout.fnmatch_lines([
'collected 1 item',
'run-last-failure: rerun previous 1 failure',
'*1 failed in*',
])
def test_terminal_report_failedfirst(self, testdir):
testdir.makepyfile(test_a="""
def test_a1():
assert 0
def test_a2():
pass
""")
result = testdir.runpytest()
result.stdout.fnmatch_lines([
'collected 2 items',
'*1 failed, 1 passed in*',
])
result = testdir.runpytest('--ff')
result.stdout.fnmatch_lines([
'collected 2 items',
'run-last-failure: rerun previous 1 failure first',
'*1 failed, 1 passed in*',
])
def test_lastfailed_collectfailure(self, testdir, monkeypatch):
testdir.makepyfile(test_maybe="""
import py
env = py.std.os.environ
if '1' == env['FAILIMPORT']:
raise ImportError('fail')
def test_hello():
assert '0' == env['FAILTEST']
""")
def rlf(fail_import, fail_run):
monkeypatch.setenv('FAILIMPORT', fail_import)
monkeypatch.setenv('FAILTEST', fail_run)
testdir.runpytest('-q')
config = testdir.parseconfigure()
lastfailed = config.cache.get("cache/lastfailed", -1)
return lastfailed
lastfailed = rlf(fail_import=0, fail_run=0)
assert lastfailed == -1
lastfailed = rlf(fail_import=1, fail_run=0)
assert list(lastfailed) == ['test_maybe.py']
lastfailed = rlf(fail_import=0, fail_run=1)
assert list(lastfailed) == ['test_maybe.py::test_hello']
def test_lastfailed_failure_subset(self, testdir, monkeypatch):
testdir.makepyfile(test_maybe="""
import py
env = py.std.os.environ
if '1' == env['FAILIMPORT']:
raise ImportError('fail')
def test_hello():
assert '0' == env['FAILTEST']
""")
testdir.makepyfile(test_maybe2="""
import py
env = py.std.os.environ
if '1' == env['FAILIMPORT']:
raise ImportError('fail')
def test_hello():
assert '0' == env['FAILTEST']
def test_pass():
pass
""")
def rlf(fail_import, fail_run, args=()):
monkeypatch.setenv('FAILIMPORT', fail_import)
monkeypatch.setenv('FAILTEST', fail_run)
result = testdir.runpytest('-q', '--lf', *args)
config = testdir.parseconfigure()
lastfailed = config.cache.get("cache/lastfailed", -1)
return result, lastfailed
result, lastfailed = rlf(fail_import=0, fail_run=0)
assert lastfailed == -1
result.stdout.fnmatch_lines([
'*3 passed*',
])
result, lastfailed = rlf(fail_import=1, fail_run=0)
assert sorted(list(lastfailed)) == ['test_maybe.py', 'test_maybe2.py']
result, lastfailed = rlf(fail_import=0, fail_run=0,
args=('test_maybe2.py',))
assert list(lastfailed) == ['test_maybe.py']
# edge case of test selection - even if we remember failures
# from other tests we still need to run all tests if no test
# matches the failures
result, lastfailed = rlf(fail_import=0, fail_run=0,
args=('test_maybe2.py',))
assert list(lastfailed) == ['test_maybe.py']
result.stdout.fnmatch_lines([
'*2 passed*',
])
def test_lastfailed_creates_cache_when_needed(self, testdir):
# Issue #1342
testdir.makepyfile(test_empty='')
testdir.runpytest('-q', '--lf')
assert not os.path.exists('.cache')
testdir.makepyfile(test_successful='def test_success():\n assert True')
testdir.runpytest('-q', '--lf')
assert not os.path.exists('.cache')
testdir.makepyfile(test_errored='def test_error():\n assert False')
testdir.runpytest('-q', '--lf')
assert os.path.exists('.cache')
def test_xfail_not_considered_failure(self, testdir):
testdir.makepyfile('''
import pytest
@pytest.mark.xfail
def test():
assert 0
''')
result = testdir.runpytest()
result.stdout.fnmatch_lines('*1 xfailed*')
assert self.get_cached_last_failed(testdir) == []
def test_xfail_strict_considered_failure(self, testdir):
testdir.makepyfile('''
import pytest
@pytest.mark.xfail(strict=True)
def test():
pass
''')
result = testdir.runpytest()
result.stdout.fnmatch_lines('*1 failed*')
assert self.get_cached_last_failed(testdir) == ['test_xfail_strict_considered_failure.py::test']
@pytest.mark.parametrize('mark', ['mark.xfail', 'mark.skip'])
def test_failed_changed_to_xfail_or_skip(self, testdir, mark):
testdir.makepyfile('''
import pytest
def test():
assert 0
''')
result = testdir.runpytest()
assert self.get_cached_last_failed(testdir) == ['test_failed_changed_to_xfail_or_skip.py::test']
assert result.ret == 1
testdir.makepyfile('''
import pytest
@pytest.{mark}
def test():
assert 0
'''.format(mark=mark))
result = testdir.runpytest()
assert result.ret == 0
assert self.get_cached_last_failed(testdir) == []
assert result.ret == 0
def get_cached_last_failed(self, testdir):
config = testdir.parseconfigure()
return sorted(config.cache.get("cache/lastfailed", {}))
def test_cache_cumulative(self, testdir):
"""
Test workflow where user fixes errors gradually file by file using --lf.
"""
# 1. initial run
test_bar = testdir.makepyfile(test_bar="""
def test_bar_1():
pass
def test_bar_2():
assert 0
""")
test_foo = testdir.makepyfile(test_foo="""
def test_foo_3():
pass
def test_foo_4():
assert 0
""")
testdir.runpytest()
assert self.get_cached_last_failed(testdir) == ['test_bar.py::test_bar_2', 'test_foo.py::test_foo_4']
# 2. fix test_bar_2, run only test_bar.py
testdir.makepyfile(test_bar="""
def test_bar_1():
pass
def test_bar_2():
pass
""")
result = testdir.runpytest(test_bar)
result.stdout.fnmatch_lines('*2 passed*')
# ensure cache does not forget that test_foo_4 failed once before
assert self.get_cached_last_failed(testdir) == ['test_foo.py::test_foo_4']
result = testdir.runpytest('--last-failed')
result.stdout.fnmatch_lines('*1 failed, 3 deselected*')
assert self.get_cached_last_failed(testdir) == ['test_foo.py::test_foo_4']
# 3. fix test_foo_4, run only test_foo.py
test_foo = testdir.makepyfile(test_foo="""
def test_foo_3():
pass
def test_foo_4():
pass
""")
result = testdir.runpytest(test_foo, '--last-failed')
result.stdout.fnmatch_lines('*1 passed, 1 deselected*')
assert self.get_cached_last_failed(testdir) == []
result = testdir.runpytest('--last-failed')
result.stdout.fnmatch_lines('*4 passed*')
assert self.get_cached_last_failed(testdir) == []