679 lines
20 KiB
Python
679 lines
20 KiB
Python
import os
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import subprocess
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import sys
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import time
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import py.path
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import _pytest.pytester as pytester
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import pytest
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from _pytest.config import PytestPluginManager
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from _pytest.main import ExitCode
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from _pytest.pytester import CwdSnapshot
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from _pytest.pytester import HookRecorder
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from _pytest.pytester import LineMatcher
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from _pytest.pytester import SysModulesSnapshot
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from _pytest.pytester import SysPathsSnapshot
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def test_make_hook_recorder(testdir):
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item = testdir.getitem("def test_func(): pass")
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recorder = testdir.make_hook_recorder(item.config.pluginmanager)
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assert not recorder.getfailures()
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pytest.xfail("internal reportrecorder tests need refactoring")
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class rep:
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excinfo = None
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passed = False
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failed = True
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skipped = False
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when = "call"
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recorder.hook.pytest_runtest_logreport(report=rep)
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failures = recorder.getfailures()
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assert failures == [rep]
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failures = recorder.getfailures()
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assert failures == [rep]
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class rep:
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excinfo = None
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passed = False
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failed = False
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skipped = True
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when = "call"
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rep.passed = False
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rep.skipped = True
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recorder.hook.pytest_runtest_logreport(report=rep)
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modcol = testdir.getmodulecol("")
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rep = modcol.config.hook.pytest_make_collect_report(collector=modcol)
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rep.passed = False
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rep.failed = True
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rep.skipped = False
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recorder.hook.pytest_collectreport(report=rep)
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passed, skipped, failed = recorder.listoutcomes()
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assert not passed and skipped and failed
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numpassed, numskipped, numfailed = recorder.countoutcomes()
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assert numpassed == 0
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assert numskipped == 1
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assert numfailed == 1
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assert len(recorder.getfailedcollections()) == 1
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recorder.unregister()
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recorder.clear()
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recorder.hook.pytest_runtest_logreport(report=rep)
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pytest.raises(ValueError, recorder.getfailures)
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def test_parseconfig(testdir):
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config1 = testdir.parseconfig()
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config2 = testdir.parseconfig()
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assert config2 is not config1
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def test_testdir_runs_with_plugin(testdir):
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testdir.makepyfile(
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"""
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pytest_plugins = "pytester"
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def test_hello(testdir):
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assert 1
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"""
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)
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result = testdir.runpytest()
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result.assert_outcomes(passed=1)
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def test_runresult_assertion_on_xfail(testdir):
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testdir.makepyfile(
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"""
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import pytest
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pytest_plugins = "pytester"
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@pytest.mark.xfail
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def test_potato():
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assert False
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"""
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)
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result = testdir.runpytest()
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result.assert_outcomes(xfailed=1)
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assert result.ret == 0
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def test_runresult_assertion_on_xpassed(testdir):
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testdir.makepyfile(
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"""
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import pytest
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pytest_plugins = "pytester"
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@pytest.mark.xfail
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def test_potato():
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assert True
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"""
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)
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result = testdir.runpytest()
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result.assert_outcomes(xpassed=1)
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assert result.ret == 0
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def test_xpassed_with_strict_is_considered_a_failure(testdir):
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testdir.makepyfile(
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"""
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import pytest
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pytest_plugins = "pytester"
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@pytest.mark.xfail(strict=True)
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def test_potato():
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assert True
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"""
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)
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result = testdir.runpytest()
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result.assert_outcomes(failed=1)
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assert result.ret != 0
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def make_holder():
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class apiclass:
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def pytest_xyz(self, arg):
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"x"
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def pytest_xyz_noarg(self):
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"x"
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apimod = type(os)("api")
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def pytest_xyz(arg):
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"x"
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def pytest_xyz_noarg():
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"x"
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apimod.pytest_xyz = pytest_xyz
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apimod.pytest_xyz_noarg = pytest_xyz_noarg
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return apiclass, apimod
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@pytest.mark.parametrize("holder", make_holder())
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def test_hookrecorder_basic(holder):
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pm = PytestPluginManager()
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pm.add_hookspecs(holder)
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rec = HookRecorder(pm)
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pm.hook.pytest_xyz(arg=123)
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call = rec.popcall("pytest_xyz")
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assert call.arg == 123
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assert call._name == "pytest_xyz"
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pytest.raises(pytest.fail.Exception, rec.popcall, "abc")
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pm.hook.pytest_xyz_noarg()
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call = rec.popcall("pytest_xyz_noarg")
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assert call._name == "pytest_xyz_noarg"
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def test_makepyfile_unicode(testdir):
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testdir.makepyfile(chr(0xFFFD))
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def test_makepyfile_utf8(testdir):
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"""Ensure makepyfile accepts utf-8 bytes as input (#2738)"""
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utf8_contents = """
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def setup_function(function):
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mixed_encoding = 'São Paulo'
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""".encode()
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p = testdir.makepyfile(utf8_contents)
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assert "mixed_encoding = 'São Paulo'".encode() in p.read("rb")
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class TestInlineRunModulesCleanup:
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def test_inline_run_test_module_not_cleaned_up(self, testdir):
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test_mod = testdir.makepyfile("def test_foo(): assert True")
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result = testdir.inline_run(str(test_mod))
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assert result.ret == ExitCode.OK
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# rewrite module, now test should fail if module was re-imported
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test_mod.write("def test_foo(): assert False")
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result2 = testdir.inline_run(str(test_mod))
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assert result2.ret == ExitCode.TESTS_FAILED
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def spy_factory(self):
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class SysModulesSnapshotSpy:
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instances = []
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def __init__(self, preserve=None):
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SysModulesSnapshotSpy.instances.append(self)
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self._spy_restore_count = 0
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self._spy_preserve = preserve
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self.__snapshot = SysModulesSnapshot(preserve=preserve)
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def restore(self):
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self._spy_restore_count += 1
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return self.__snapshot.restore()
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return SysModulesSnapshotSpy
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def test_inline_run_taking_and_restoring_a_sys_modules_snapshot(
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self, testdir, monkeypatch
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):
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spy_factory = self.spy_factory()
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monkeypatch.setattr(pytester, "SysModulesSnapshot", spy_factory)
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testdir.syspathinsert()
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original = dict(sys.modules)
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testdir.makepyfile(import1="# you son of a silly person")
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testdir.makepyfile(import2="# my hovercraft is full of eels")
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test_mod = testdir.makepyfile(
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"""
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import import1
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def test_foo(): import import2"""
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)
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testdir.inline_run(str(test_mod))
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assert len(spy_factory.instances) == 1
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spy = spy_factory.instances[0]
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assert spy._spy_restore_count == 1
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assert sys.modules == original
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assert all(sys.modules[x] is original[x] for x in sys.modules)
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def test_inline_run_sys_modules_snapshot_restore_preserving_modules(
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self, testdir, monkeypatch
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):
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spy_factory = self.spy_factory()
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monkeypatch.setattr(pytester, "SysModulesSnapshot", spy_factory)
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test_mod = testdir.makepyfile("def test_foo(): pass")
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testdir.inline_run(str(test_mod))
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spy = spy_factory.instances[0]
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assert not spy._spy_preserve("black_knight")
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assert spy._spy_preserve("zope")
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assert spy._spy_preserve("zope.interface")
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assert spy._spy_preserve("zopelicious")
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def test_external_test_module_imports_not_cleaned_up(self, testdir):
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testdir.syspathinsert()
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testdir.makepyfile(imported="data = 'you son of a silly person'")
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import imported
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test_mod = testdir.makepyfile(
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"""
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def test_foo():
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import imported
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imported.data = 42"""
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)
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testdir.inline_run(str(test_mod))
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assert imported.data == 42
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def test_assert_outcomes_after_pytest_error(testdir):
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testdir.makepyfile("def test_foo(): assert True")
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result = testdir.runpytest("--unexpected-argument")
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with pytest.raises(ValueError, match="Pytest terminal summary report not found"):
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result.assert_outcomes(passed=0)
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def test_cwd_snapshot(tmpdir):
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foo = tmpdir.ensure("foo", dir=1)
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bar = tmpdir.ensure("bar", dir=1)
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foo.chdir()
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snapshot = CwdSnapshot()
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bar.chdir()
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assert py.path.local() == bar
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snapshot.restore()
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assert py.path.local() == foo
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class TestSysModulesSnapshot:
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key = "my-test-module"
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def test_remove_added(self):
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original = dict(sys.modules)
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assert self.key not in sys.modules
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snapshot = SysModulesSnapshot()
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sys.modules[self.key] = "something"
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assert self.key in sys.modules
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snapshot.restore()
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assert sys.modules == original
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def test_add_removed(self, monkeypatch):
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assert self.key not in sys.modules
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monkeypatch.setitem(sys.modules, self.key, "something")
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assert self.key in sys.modules
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original = dict(sys.modules)
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snapshot = SysModulesSnapshot()
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del sys.modules[self.key]
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assert self.key not in sys.modules
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snapshot.restore()
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assert sys.modules == original
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def test_restore_reloaded(self, monkeypatch):
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assert self.key not in sys.modules
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monkeypatch.setitem(sys.modules, self.key, "something")
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assert self.key in sys.modules
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original = dict(sys.modules)
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snapshot = SysModulesSnapshot()
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sys.modules[self.key] = "something else"
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snapshot.restore()
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assert sys.modules == original
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def test_preserve_modules(self, monkeypatch):
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key = [self.key + str(i) for i in range(3)]
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assert not any(k in sys.modules for k in key)
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for i, k in enumerate(key):
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monkeypatch.setitem(sys.modules, k, "something" + str(i))
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original = dict(sys.modules)
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def preserve(name):
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return name in (key[0], key[1], "some-other-key")
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snapshot = SysModulesSnapshot(preserve=preserve)
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sys.modules[key[0]] = original[key[0]] = "something else0"
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sys.modules[key[1]] = original[key[1]] = "something else1"
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sys.modules[key[2]] = "something else2"
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snapshot.restore()
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assert sys.modules == original
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def test_preserve_container(self, monkeypatch):
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original = dict(sys.modules)
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assert self.key not in original
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replacement = dict(sys.modules)
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replacement[self.key] = "life of brian"
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snapshot = SysModulesSnapshot()
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monkeypatch.setattr(sys, "modules", replacement)
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snapshot.restore()
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assert sys.modules is replacement
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assert sys.modules == original
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@pytest.mark.parametrize("path_type", ("path", "meta_path"))
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class TestSysPathsSnapshot:
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other_path = {"path": "meta_path", "meta_path": "path"}
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@staticmethod
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def path(n):
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return "my-dirty-little-secret-" + str(n)
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def test_restore(self, monkeypatch, path_type):
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other_path_type = self.other_path[path_type]
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for i in range(10):
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assert self.path(i) not in getattr(sys, path_type)
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sys_path = [self.path(i) for i in range(6)]
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monkeypatch.setattr(sys, path_type, sys_path)
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original = list(sys_path)
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original_other = list(getattr(sys, other_path_type))
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snapshot = SysPathsSnapshot()
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transformation = {"source": (0, 1, 2, 3, 4, 5), "target": (6, 2, 9, 7, 5, 8)}
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assert sys_path == [self.path(x) for x in transformation["source"]]
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sys_path[1] = self.path(6)
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sys_path[3] = self.path(7)
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sys_path.append(self.path(8))
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del sys_path[4]
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sys_path[3:3] = [self.path(9)]
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del sys_path[0]
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assert sys_path == [self.path(x) for x in transformation["target"]]
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snapshot.restore()
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assert getattr(sys, path_type) is sys_path
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assert getattr(sys, path_type) == original
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assert getattr(sys, other_path_type) == original_other
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def test_preserve_container(self, monkeypatch, path_type):
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other_path_type = self.other_path[path_type]
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original_data = list(getattr(sys, path_type))
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original_other = getattr(sys, other_path_type)
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original_other_data = list(original_other)
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new = []
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snapshot = SysPathsSnapshot()
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monkeypatch.setattr(sys, path_type, new)
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snapshot.restore()
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assert getattr(sys, path_type) is new
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assert getattr(sys, path_type) == original_data
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assert getattr(sys, other_path_type) is original_other
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assert getattr(sys, other_path_type) == original_other_data
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def test_testdir_subprocess(testdir):
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testfile = testdir.makepyfile("def test_one(): pass")
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assert testdir.runpytest_subprocess(testfile).ret == 0
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def test_testdir_subprocess_via_runpytest_arg(testdir) -> None:
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testfile = testdir.makepyfile(
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"""
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def test_testdir_subprocess(testdir):
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import os
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testfile = testdir.makepyfile(
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\"""
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import os
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def test_one():
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assert {} != os.getpid()
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\""".format(os.getpid())
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)
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assert testdir.runpytest(testfile).ret == 0
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"""
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)
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result = testdir.runpytest_subprocess(
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"-p", "pytester", "--runpytest", "subprocess", testfile
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)
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assert result.ret == 0
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def test_unicode_args(testdir):
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result = testdir.runpytest("-k", "💩")
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assert result.ret == ExitCode.NO_TESTS_COLLECTED
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def test_testdir_run_no_timeout(testdir):
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testfile = testdir.makepyfile("def test_no_timeout(): pass")
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assert testdir.runpytest_subprocess(testfile).ret == ExitCode.OK
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def test_testdir_run_with_timeout(testdir):
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testfile = testdir.makepyfile("def test_no_timeout(): pass")
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timeout = 120
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start = time.time()
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result = testdir.runpytest_subprocess(testfile, timeout=timeout)
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end = time.time()
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duration = end - start
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assert result.ret == ExitCode.OK
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assert duration < timeout
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def test_testdir_run_timeout_expires(testdir):
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testfile = testdir.makepyfile(
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"""
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import time
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def test_timeout():
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time.sleep(10)"""
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)
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with pytest.raises(testdir.TimeoutExpired):
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testdir.runpytest_subprocess(testfile, timeout=1)
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def test_linematcher_with_nonlist():
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"""Test LineMatcher with regard to passing in a set (accidentally)."""
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lm = LineMatcher([])
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with pytest.raises(AssertionError):
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lm.fnmatch_lines(set())
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with pytest.raises(AssertionError):
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lm.fnmatch_lines({})
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lm.fnmatch_lines([])
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lm.fnmatch_lines(())
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assert lm._getlines({}) == {}
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assert lm._getlines(set()) == set()
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def test_linematcher_match_failure():
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lm = LineMatcher(["foo", "foo", "bar"])
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with pytest.raises(pytest.fail.Exception) as e:
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lm.fnmatch_lines(["foo", "f*", "baz"])
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assert e.value.msg.splitlines() == [
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"exact match: 'foo'",
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"fnmatch: 'f*'",
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" with: 'foo'",
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"nomatch: 'baz'",
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" and: 'bar'",
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"remains unmatched: 'baz'",
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]
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lm = LineMatcher(["foo", "foo", "bar"])
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with pytest.raises(pytest.fail.Exception) as e:
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lm.re_match_lines(["foo", "^f.*", "baz"])
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assert e.value.msg.splitlines() == [
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"exact match: 'foo'",
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"re.match: '^f.*'",
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" with: 'foo'",
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" nomatch: 'baz'",
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" and: 'bar'",
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"remains unmatched: 'baz'",
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]
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@pytest.mark.parametrize("function", ["no_fnmatch_line", "no_re_match_line"])
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def test_no_matching(function):
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if function == "no_fnmatch_line":
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good_pattern = "*.py OK*"
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bad_pattern = "*X.py OK*"
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else:
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assert function == "no_re_match_line"
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good_pattern = r".*py OK"
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bad_pattern = r".*Xpy OK"
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lm = LineMatcher(
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[
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"cachedir: .pytest_cache",
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"collecting ... collected 1 item",
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"",
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"show_fixtures_per_test.py OK",
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"=== elapsed 1s ===",
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]
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)
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# check the function twice to ensure we don't accumulate the internal buffer
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for i in range(2):
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with pytest.raises(pytest.fail.Exception) as e:
|
|
func = getattr(lm, function)
|
|
func(good_pattern)
|
|
obtained = str(e.value).splitlines()
|
|
if function == "no_fnmatch_line":
|
|
assert obtained == [
|
|
"nomatch: '{}'".format(good_pattern),
|
|
" and: 'cachedir: .pytest_cache'",
|
|
" and: 'collecting ... collected 1 item'",
|
|
" and: ''",
|
|
"fnmatch: '{}'".format(good_pattern),
|
|
" with: 'show_fixtures_per_test.py OK'",
|
|
]
|
|
else:
|
|
assert obtained == [
|
|
" nomatch: '{}'".format(good_pattern),
|
|
" and: 'cachedir: .pytest_cache'",
|
|
" and: 'collecting ... collected 1 item'",
|
|
" and: ''",
|
|
"re.match: '{}'".format(good_pattern),
|
|
" with: 'show_fixtures_per_test.py OK'",
|
|
]
|
|
|
|
func = getattr(lm, function)
|
|
func(bad_pattern) # bad pattern does not match any line: passes
|
|
|
|
|
|
def test_no_matching_after_match():
|
|
lm = LineMatcher(["1", "2", "3"])
|
|
lm.fnmatch_lines(["1", "3"])
|
|
with pytest.raises(pytest.fail.Exception) as e:
|
|
lm.no_fnmatch_line("*")
|
|
assert str(e.value).splitlines() == ["fnmatch: '*'", " with: '1'"]
|
|
|
|
|
|
def test_pytester_addopts_before_testdir(request, monkeypatch):
|
|
orig = os.environ.get("PYTEST_ADDOPTS", None)
|
|
monkeypatch.setenv("PYTEST_ADDOPTS", "--orig-unused")
|
|
testdir = request.getfixturevalue("testdir")
|
|
assert "PYTEST_ADDOPTS" not in os.environ
|
|
testdir.finalize()
|
|
assert os.environ.get("PYTEST_ADDOPTS") == "--orig-unused"
|
|
monkeypatch.undo()
|
|
assert os.environ.get("PYTEST_ADDOPTS") == orig
|
|
|
|
|
|
def test_run_stdin(testdir):
|
|
with pytest.raises(testdir.TimeoutExpired):
|
|
testdir.run(
|
|
sys.executable,
|
|
"-c",
|
|
"import sys, time; time.sleep(1); print(sys.stdin.read())",
|
|
stdin=subprocess.PIPE,
|
|
timeout=0.1,
|
|
)
|
|
|
|
with pytest.raises(testdir.TimeoutExpired):
|
|
result = testdir.run(
|
|
sys.executable,
|
|
"-c",
|
|
"import sys, time; time.sleep(1); print(sys.stdin.read())",
|
|
stdin=b"input\n2ndline",
|
|
timeout=0.1,
|
|
)
|
|
|
|
result = testdir.run(
|
|
sys.executable,
|
|
"-c",
|
|
"import sys; print(sys.stdin.read())",
|
|
stdin=b"input\n2ndline",
|
|
)
|
|
assert result.stdout.lines == ["input", "2ndline"]
|
|
assert result.stderr.str() == ""
|
|
assert result.ret == 0
|
|
|
|
|
|
def test_popen_stdin_pipe(testdir):
|
|
proc = testdir.popen(
|
|
[sys.executable, "-c", "import sys; print(sys.stdin.read())"],
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE,
|
|
stdin=subprocess.PIPE,
|
|
)
|
|
stdin = b"input\n2ndline"
|
|
stdout, stderr = proc.communicate(input=stdin)
|
|
assert stdout.decode("utf8").splitlines() == ["input", "2ndline"]
|
|
assert stderr == b""
|
|
assert proc.returncode == 0
|
|
|
|
|
|
def test_popen_stdin_bytes(testdir):
|
|
proc = testdir.popen(
|
|
[sys.executable, "-c", "import sys; print(sys.stdin.read())"],
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE,
|
|
stdin=b"input\n2ndline",
|
|
)
|
|
stdout, stderr = proc.communicate()
|
|
assert stdout.decode("utf8").splitlines() == ["input", "2ndline"]
|
|
assert stderr == b""
|
|
assert proc.returncode == 0
|
|
|
|
|
|
def test_popen_default_stdin_stderr_and_stdin_None(testdir):
|
|
# stdout, stderr default to pipes,
|
|
# stdin can be None to not close the pipe, avoiding
|
|
# "ValueError: flush of closed file" with `communicate()`.
|
|
p1 = testdir.makepyfile(
|
|
"""
|
|
import sys
|
|
print(sys.stdin.read()) # empty
|
|
print('stdout')
|
|
sys.stderr.write('stderr')
|
|
"""
|
|
)
|
|
proc = testdir.popen([sys.executable, str(p1)], stdin=None)
|
|
stdout, stderr = proc.communicate(b"ignored")
|
|
assert stdout.splitlines() == [b"", b"stdout"]
|
|
assert stderr.splitlines() == [b"stderr"]
|
|
assert proc.returncode == 0
|
|
|
|
|
|
def test_spawn_uses_tmphome(testdir):
|
|
tmphome = str(testdir.tmpdir)
|
|
assert os.environ.get("HOME") == tmphome
|
|
|
|
testdir.monkeypatch.setenv("CUSTOMENV", "42")
|
|
|
|
p1 = testdir.makepyfile(
|
|
"""
|
|
import os
|
|
|
|
def test():
|
|
assert os.environ["HOME"] == {tmphome!r}
|
|
assert os.environ["CUSTOMENV"] == "42"
|
|
""".format(
|
|
tmphome=tmphome
|
|
)
|
|
)
|
|
child = testdir.spawn_pytest(str(p1))
|
|
out = child.read()
|
|
assert child.wait() == 0, out.decode("utf8")
|
|
|
|
|
|
def test_run_result_repr():
|
|
outlines = ["some", "normal", "output"]
|
|
errlines = ["some", "nasty", "errors", "happened"]
|
|
|
|
# known exit code
|
|
r = pytester.RunResult(1, outlines, errlines, duration=0.5)
|
|
assert (
|
|
repr(r) == "<RunResult ret=ExitCode.TESTS_FAILED len(stdout.lines)=3"
|
|
" len(stderr.lines)=4 duration=0.50s>"
|
|
)
|
|
|
|
# unknown exit code: just the number
|
|
r = pytester.RunResult(99, outlines, errlines, duration=0.5)
|
|
assert (
|
|
repr(r) == "<RunResult ret=99 len(stdout.lines)=3"
|
|
" len(stderr.lines)=4 duration=0.50s>"
|
|
)
|