test_ok1/testing/test_pluginmanager.py

509 lines
17 KiB
Python

import py, os
from py._test.pluginmanager import PluginManager, canonical_importname
from py._test.pluginmanager import Registry, MultiCall, HookRelay, varnames
class TestBootstrapping:
def test_consider_env_fails_to_import(self, monkeypatch):
pluginmanager = PluginManager()
monkeypatch.setenv('PYTEST_PLUGINS', 'nonexisting', prepend=",")
py.test.raises(ImportError, "pluginmanager.consider_env()")
def test_preparse_args(self):
pluginmanager = PluginManager()
py.test.raises(ImportError, """
pluginmanager.consider_preparse(["xyz", "-p", "hello123"])
""")
def test_plugin_skip(self, testdir, monkeypatch):
p = testdir.makepyfile(pytest_skipping1="""
import py
py.test.skip("hello")
""")
p.copy(p.dirpath("pytest_skipping2.py"))
monkeypatch.setenv("PYTEST_PLUGINS", "skipping2")
result = testdir.runpytest("-p", "skipping1", "--traceconfig")
assert result.ret == 0
result.stdout.fnmatch_lines([
"*hint*skipping2*hello*",
"*hint*skipping1*hello*",
])
def test_consider_env_plugin_instantiation(self, testdir, monkeypatch):
pluginmanager = PluginManager()
testdir.syspathinsert()
testdir.makepyfile(pytest_xy123="#")
monkeypatch.setitem(os.environ, 'PYTEST_PLUGINS', 'xy123')
l1 = len(pluginmanager.getplugins())
pluginmanager.consider_env()
l2 = len(pluginmanager.getplugins())
assert l2 == l1 + 1
assert pluginmanager.getplugin('pytest_xy123')
pluginmanager.consider_env()
l3 = len(pluginmanager.getplugins())
assert l2 == l3
def test_consider_setuptools_instantiation(self, monkeypatch):
pkg_resources = py.test.importorskip("pkg_resources")
def my_iter(name):
assert name == "pytest11"
class EntryPoint:
name = "mytestplugin"
def load(self):
class PseudoPlugin:
x = 42
return PseudoPlugin()
return iter([EntryPoint()])
monkeypatch.setattr(pkg_resources, 'iter_entry_points', my_iter)
pluginmanager = PluginManager()
pluginmanager.consider_setuptools_entrypoints()
plugin = pluginmanager.getplugin("mytestplugin")
assert plugin.x == 42
plugin2 = pluginmanager.getplugin("pytest_mytestplugin")
assert plugin2 == plugin
def test_consider_setuptools_not_installed(self, monkeypatch):
monkeypatch.setitem(py.std.sys.modules, 'pkg_resources',
py.std.types.ModuleType("pkg_resources"))
pluginmanager = PluginManager()
pluginmanager.consider_setuptools_entrypoints()
# ok, we did not explode
def test_pluginmanager_ENV_startup(self, testdir, monkeypatch):
x500 = testdir.makepyfile(pytest_x500="#")
p = testdir.makepyfile("""
import py
def test_hello(pytestconfig):
plugin = pytestconfig.pluginmanager.getplugin('x500')
assert plugin is not None
""")
monkeypatch.setenv('PYTEST_PLUGINS', 'pytest_x500', prepend=",")
result = testdir.runpytest(p)
assert result.ret == 0
result.stdout.fnmatch_lines(["*1 passed in*"])
def test_import_plugin_importname(self, testdir):
pluginmanager = PluginManager()
py.test.raises(ImportError, 'pluginmanager.import_plugin("x.y")')
py.test.raises(ImportError, 'pluginmanager.import_plugin("pytest_x.y")')
reset = testdir.syspathinsert()
pluginname = "pytest_hello"
testdir.makepyfile(**{pluginname: ""})
pluginmanager.import_plugin("hello")
len1 = len(pluginmanager.getplugins())
pluginmanager.import_plugin("pytest_hello")
len2 = len(pluginmanager.getplugins())
assert len1 == len2
plugin1 = pluginmanager.getplugin("pytest_hello")
assert plugin1.__name__.endswith('pytest_hello')
plugin2 = pluginmanager.getplugin("hello")
assert plugin2 is plugin1
def test_consider_module(self, testdir):
pluginmanager = PluginManager()
testdir.syspathinsert()
testdir.makepyfile(pytest_plug1="#")
testdir.makepyfile(pytest_plug2="#")
mod = py.std.types.ModuleType("temp")
mod.pytest_plugins = ["pytest_plug1", "pytest_plug2"]
pluginmanager.consider_module(mod)
assert pluginmanager.getplugin("plug1").__name__ == "pytest_plug1"
assert pluginmanager.getplugin("plug2").__name__ == "pytest_plug2"
def test_consider_module_import_module(self, testdir):
mod = py.std.types.ModuleType("x")
mod.pytest_plugins = "pytest_a"
aplugin = testdir.makepyfile(pytest_a="#")
pluginmanager = PluginManager()
reprec = testdir.getreportrecorder(pluginmanager)
#syspath.prepend(aplugin.dirpath())
py.std.sys.path.insert(0, str(aplugin.dirpath()))
pluginmanager.consider_module(mod)
call = reprec.getcall(pluginmanager.hook.pytest_plugin_registered.name)
assert call.plugin.__name__ == "pytest_a"
# check that it is not registered twice
pluginmanager.consider_module(mod)
l = reprec.getcalls("pytest_plugin_registered")
assert len(l) == 1
def test_consider_conftest_deprecated(self, testdir):
pp = PluginManager()
mod = testdir.makepyfile("class ConftestPlugin: pass").pyimport()
call = py.test.raises(ValueError, pp.consider_conftest, mod)
def test_config_sets_conftesthandle_onimport(self, testdir):
config = testdir.parseconfig([])
assert config._conftest._onimport == config._onimportconftest
def test_consider_conftest_deps(self, testdir):
mod = testdir.makepyfile("pytest_plugins='xyz'").pyimport()
pp = PluginManager()
py.test.raises(ImportError, "pp.consider_conftest(mod)")
def test_registry(self):
pp = PluginManager()
class A: pass
a1, a2 = A(), A()
pp.register(a1)
assert pp.isregistered(a1)
pp.register(a2, "hello")
assert pp.isregistered(a2)
l = pp.getplugins()
assert a1 in l
assert a2 in l
assert pp.getplugin('hello') == a2
pp.unregister(a1)
assert not pp.isregistered(a1)
pp.unregister(a2)
assert not pp.isregistered(a2)
def test_registry_ordering(self):
pp = PluginManager()
class A: pass
a1, a2 = A(), A()
pp.register(a1)
pp.register(a2, "hello")
l = pp.getplugins()
assert l.index(a1) < l.index(a2)
a3 = A()
pp.register(a3, prepend=True)
l = pp.getplugins()
assert l.index(a3) == 0
def test_register_imported_modules(self):
pp = PluginManager()
mod = py.std.types.ModuleType("x.y.pytest_hello")
pp.register(mod)
assert pp.isregistered(mod)
l = pp.getplugins()
assert mod in l
py.test.raises(AssertionError, "pp.register(mod)")
mod2 = py.std.types.ModuleType("pytest_hello")
#pp.register(mod2) # double registry
py.test.raises(AssertionError, "pp.register(mod)")
#assert not pp.isregistered(mod2)
assert pp.getplugins() == l
def test_canonical_import(self, monkeypatch):
mod = py.std.types.ModuleType("pytest_xyz")
monkeypatch.setitem(py.std.sys.modules, 'pytest_xyz', mod)
pp = PluginManager()
pp.import_plugin('xyz')
assert pp.getplugin('xyz') == mod
assert pp.getplugin('pytest_xyz') == mod
assert pp.isregistered(mod)
def test_register_mismatch_method(self):
pp = PluginManager()
class hello:
def pytest_gurgel(self):
pass
py.test.raises(Exception, "pp.register(hello())")
def test_register_mismatch_arg(self):
pp = PluginManager()
class hello:
def pytest_configure(self, asd):
pass
excinfo = py.test.raises(Exception, "pp.register(hello())")
def test_canonical_importname(self):
for name in 'xyz', 'pytest_xyz', 'pytest_Xyz', 'Xyz':
impname = canonical_importname(name)
class TestPytestPluginInteractions:
def test_addhooks_conftestplugin(self, testdir):
from py._test.config import Config
newhooks = testdir.makepyfile(newhooks="""
def pytest_myhook(xyz):
"new hook"
""")
conf = testdir.makeconftest("""
import sys ; sys.path.insert(0, '.')
import newhooks
def pytest_addhooks(pluginmanager):
pluginmanager.addhooks(newhooks)
def pytest_myhook(xyz):
return xyz + 1
""")
config = Config()
config._conftest.importconftest(conf)
print(config.pluginmanager.getplugins())
res = config.hook.pytest_myhook(xyz=10)
assert res == [11]
def test_addhooks_docstring_error(self, testdir):
newhooks = testdir.makepyfile(newhooks="""
class A: # no pytest_ prefix
pass
def pytest_myhook(xyz):
pass
""")
conf = testdir.makeconftest("""
import sys ; sys.path.insert(0, '.')
import newhooks
def pytest_addhooks(pluginmanager):
pluginmanager.addhooks(newhooks)
""")
res = testdir.runpytest()
assert res.ret != 0
res.stderr.fnmatch_lines([
"*docstring*pytest_myhook*newhooks*"
])
def test_addhooks_nohooks(self, testdir):
conf = testdir.makeconftest("""
import sys
def pytest_addhooks(pluginmanager):
pluginmanager.addhooks(sys)
""")
res = testdir.runpytest()
assert res.ret != 0
res.stderr.fnmatch_lines([
"*did not find*sys*"
])
def test_do_option_conftestplugin(self, testdir):
from py._test.config import Config
p = testdir.makepyfile("""
def pytest_addoption(parser):
parser.addoption('--test123', action="store_true")
""")
config = Config()
config._conftest.importconftest(p)
print(config.pluginmanager.getplugins())
config.parse([])
assert not config.option.test123
def test_do_ext_namespace(self, testdir):
testdir.makeconftest("""
def pytest_namespace():
return {'hello': 'world'}
""")
p = testdir.makepyfile("""
from py.test import hello
import py
def test_hello():
assert hello == "world"
assert 'hello' in py.test.__all__
""")
result = testdir.runpytest(p)
result.stdout.fnmatch_lines([
"*1 passed*"
])
def test_do_option_postinitialize(self, testdir):
from py._test.config import Config
config = Config()
config.parse([])
config.pluginmanager.do_configure(config=config)
assert not hasattr(config.option, 'test123')
p = testdir.makepyfile("""
def pytest_addoption(parser):
parser.addoption('--test123', action="store_true",
default=True)
""")
config._conftest.importconftest(p)
assert config.option.test123
def test_configure(self, testdir):
config = testdir.parseconfig()
l = []
class A:
def pytest_configure(self, config):
l.append(self)
config.pluginmanager.register(A())
assert len(l) == 0
config.pluginmanager.do_configure(config=config)
assert len(l) == 1
config.pluginmanager.register(A()) # this should lead to a configured() plugin
assert len(l) == 2
assert l[0] != l[1]
config.pluginmanager.do_unconfigure(config=config)
config.pluginmanager.register(A())
assert len(l) == 2
# lower level API
def test_listattr(self):
pluginmanager = PluginManager()
class My2:
x = 42
pluginmanager.register(My2())
assert not pluginmanager.listattr("hello")
assert pluginmanager.listattr("x") == [42]
def test_namespace_has_default_and_env_plugins(testdir):
p = testdir.makepyfile("""
import py
py.test.mark
""")
result = testdir.runpython(p)
assert result.ret == 0
def test_varnames():
def f(x):
pass
class A:
def f(self, y):
pass
class B(object):
def __call__(self, z):
pass
assert varnames(f) == ("x",)
assert varnames(A().f) == ('y',)
assert varnames(B()) == ('z',)
class TestMultiCall:
def test_uses_copy_of_methods(self):
l = [lambda: 42]
mc = MultiCall(l, {})
repr(mc)
l[:] = []
res = mc.execute()
return res == 42
def test_call_passing(self):
class P1:
def m(self, __multicall__, x):
assert len(__multicall__.results) == 1
assert not __multicall__.methods
return 17
class P2:
def m(self, __multicall__, x):
assert __multicall__.results == []
assert __multicall__.methods
return 23
p1 = P1()
p2 = P2()
multicall = MultiCall([p1.m, p2.m], {'x': 23})
assert "23" in repr(multicall)
reslist = multicall.execute()
assert len(reslist) == 2
# ensure reversed order
assert reslist == [23, 17]
def test_keyword_args(self):
def f(x):
return x + 1
class A:
def f(self, x, y):
return x + y
multicall = MultiCall([f, A().f], dict(x=23, y=24))
assert "'x': 23" in repr(multicall)
assert "'y': 24" in repr(multicall)
reslist = multicall.execute()
assert reslist == [24+23, 24]
assert "2 results" in repr(multicall)
def test_keywords_call_error(self):
multicall = MultiCall([lambda x: x], {})
py.test.raises(TypeError, "multicall.execute()")
def test_call_subexecute(self):
def m(__multicall__):
subresult = __multicall__.execute()
return subresult + 1
def n():
return 1
call = MultiCall([n, m], {}, firstresult=True)
res = call.execute()
assert res == 2
def test_call_none_is_no_result(self):
def m1():
return 1
def m2():
return None
res = MultiCall([m1, m2], {}, firstresult=True).execute()
assert res == 1
res = MultiCall([m1, m2], {}).execute()
assert res == [1]
class TestRegistry:
def test_register(self):
registry = Registry()
class MyPlugin:
pass
my = MyPlugin()
registry.register(my)
assert list(registry) == [my]
my2 = MyPlugin()
registry.register(my2)
assert list(registry) == [my, my2]
assert registry.isregistered(my)
assert registry.isregistered(my2)
registry.unregister(my)
assert not registry.isregistered(my)
assert list(registry) == [my2]
def test_listattr(self):
plugins = Registry()
class api1:
x = 41
class api2:
x = 42
class api3:
x = 43
plugins.register(api1())
plugins.register(api2())
plugins.register(api3())
l = list(plugins.listattr('x'))
assert l == [41, 42, 43]
l = list(plugins.listattr('x', reverse=True))
assert l == [43, 42, 41]
class TestHookRelay:
def test_happypath(self):
registry = Registry()
class Api:
def hello(self, arg):
"api hook 1"
mcm = HookRelay(hookspecs=Api, registry=registry, prefix="he")
assert hasattr(mcm, 'hello')
assert repr(mcm.hello).find("hello") != -1
class Plugin:
def hello(self, arg):
return arg + 1
registry.register(Plugin())
l = mcm.hello(arg=3)
assert l == [4]
assert not hasattr(mcm, 'world')
def test_only_kwargs(self):
registry = Registry()
class Api:
def hello(self, arg):
"api hook 1"
mcm = HookRelay(hookspecs=Api, registry=registry, prefix="he")
py.test.raises(TypeError, "mcm.hello(3)")
def test_firstresult_definition(self):
registry = Registry()
class Api:
def hello(self, arg):
"api hook 1"
hello.firstresult = True
mcm = HookRelay(hookspecs=Api, registry=registry, prefix="he")
class Plugin:
def hello(self, arg):
return arg + 1
registry.register(Plugin())
res = mcm.hello(arg=3)
assert res == 4