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import pytest
from pluggy import HookimplMarker, HookspecMarker
from pluggy.hooks import HookImpl
hookspec = HookspecMarker("example")
hookimpl = HookimplMarker("example")
@pytest.fixture
def hc(pm):
class Hooks(object):
@hookspec
def he_method1(self, arg):
pass
pm.add_hookspecs(Hooks)
return pm.hook.he_method1
@pytest.fixture
def addmeth(hc):
def addmeth(tryfirst=False, trylast=False, hookwrapper=False):
def wrap(func):
hookimpl(tryfirst=tryfirst, trylast=trylast, hookwrapper=hookwrapper)(func)
hc._add_hookimpl(HookImpl(None, "<temp>", func, func.example_impl))
return func
return wrap
return addmeth
def funcs(hookmethods):
return [hookmethod.function for hookmethod in hookmethods]
def test_adding_nonwrappers(hc, addmeth):
@addmeth()
def he_method1():
pass
@addmeth()
def he_method2():
pass
@addmeth()
def he_method3():
pass
assert funcs(hc._nonwrappers) == [he_method1, he_method2, he_method3]
def test_adding_nonwrappers_trylast(hc, addmeth):
@addmeth()
def he_method1_middle():
pass
@addmeth(trylast=True)
def he_method1():
pass
@addmeth()
def he_method1_b():
pass
assert funcs(hc._nonwrappers) == [he_method1, he_method1_middle, he_method1_b]
def test_adding_nonwrappers_trylast3(hc, addmeth):
@addmeth()
def he_method1_a():
pass
@addmeth(trylast=True)
def he_method1_b():
pass
@addmeth()
def he_method1_c():
pass
@addmeth(trylast=True)
def he_method1_d():
pass
assert funcs(hc._nonwrappers) == [
he_method1_d,
he_method1_b,
he_method1_a,
he_method1_c,
]
def test_adding_nonwrappers_trylast2(hc, addmeth):
@addmeth()
def he_method1_middle():
pass
@addmeth()
def he_method1_b():
pass
@addmeth(trylast=True)
def he_method1():
pass
assert funcs(hc._nonwrappers) == [he_method1, he_method1_middle, he_method1_b]
def test_adding_nonwrappers_tryfirst(hc, addmeth):
@addmeth(tryfirst=True)
def he_method1():
pass
@addmeth()
def he_method1_middle():
pass
@addmeth()
def he_method1_b():
pass
assert funcs(hc._nonwrappers) == [he_method1_middle, he_method1_b, he_method1]
def test_adding_wrappers_ordering(hc, addmeth):
@addmeth(hookwrapper=True)
def he_method1():
pass
@addmeth()
def he_method1_middle():
pass
@addmeth(hookwrapper=True)
def he_method3():
pass
assert funcs(hc._nonwrappers) == [he_method1_middle]
assert funcs(hc._wrappers) == [he_method1, he_method3]
def test_adding_wrappers_ordering_tryfirst(hc, addmeth):
@addmeth(hookwrapper=True, tryfirst=True)
def he_method1():
pass
@addmeth(hookwrapper=True)
def he_method2():
pass
assert hc._nonwrappers == []
assert funcs(hc._wrappers) == [he_method2, he_method1]
def test_hookspec(pm):
class HookSpec(object):
@hookspec()
def he_myhook1(arg1):
pass
@hookspec(firstresult=True)
def he_myhook2(arg1):
pass
@hookspec(firstresult=False)
def he_myhook3(arg1):
pass
pm.add_hookspecs(HookSpec)
assert not pm.hook.he_myhook1.spec.opts["firstresult"]
assert pm.hook.he_myhook2.spec.opts["firstresult"]
assert not pm.hook.he_myhook3.spec.opts["firstresult"]
@pytest.mark.parametrize("name", ["hookwrapper", "optionalhook", "tryfirst", "trylast"])
@pytest.mark.parametrize("val", [True, False])
def test_hookimpl(name, val):
@hookimpl(**{name: val})
def he_myhook1(arg1):
pass
if val:
assert he_myhook1.example_impl.get(name)
else:
assert not hasattr(he_myhook1, name)
def test_hookrelay_registry(pm):
"""Verify hook caller instances are registered by name onto the relay
and can be likewise unregistered."""
class Api(object):
@hookspec
def hello(self, arg):
"api hook 1"
pm.add_hookspecs(Api)
hook = pm.hook
assert hasattr(hook, "hello")
assert repr(hook.hello).find("hello") != -1
class Plugin(object):
@hookimpl
def hello(self, arg):
return arg + 1
plugin = Plugin()
pm.register(plugin)
out = hook.hello(arg=3)
assert out == [4]
assert not hasattr(hook, "world")
pm.unregister(plugin)
assert hook.hello(arg=3) == []
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