def test_predicate_predicate_custom_name():
def mypred(x):
return x == 'a'
p = Predicate(Predicate(mypred, name='foo'))
assert p.name == 'foo'
assert p.num_args == 1
assert p('a')
def test_predicate_predicate_custom_name(self):
def mypred(x):
return x == "a"
p = Predicate(Predicate(mypred, name="foo"))
assert p.name == "foo"
assert p.num_args == 1
assert p("a")
def test_predicate_predicate(self):
def mypred(x):
return x == "a"
p = Predicate(Predicate(mypred))
assert p.name == "mypred"
assert p.num_args == 1
assert p("a")
def test_predicate_predicate():
def mypred(x):
return x == 'a'
p = Predicate(Predicate(mypred))
assert p.name == 'mypred'
assert p.num_args == 1
assert p('a')
def test_partial_function_predicate():
def mypred(one, two, three):
return one < two < three
p = Predicate(functools.partial(mypred, 1))
assert p.name == 'mypred'
assert p.num_args == 2 # 3 - 1 partial
assert p(2, 3)
p = Predicate(functools.partial(mypred, 1, 2))
assert p.name == 'mypred'
assert p.num_args == 1 # 3 - 2 partial
assert p(3)
def test_function_predicate_custom_name(self):
def mypred(x):
return x == 'a'
p = Predicate(mypred, name='foo')
assert p.name == 'foo'
assert p.num_args == 1
assert p('a')
def test_function_predicate(self):
def mypred(x):
return x == 'a'
p = Predicate(mypred)
assert p.name == 'mypred'
assert p.num_args == 1
assert p('a')
def test_class_predicate():
class callableclass(object):
def __call__(self, arg1, arg2):
return arg1 == arg2
fn = callableclass()
p = Predicate(fn)
assert p.name == 'callableclass'
assert p.num_args == 2
assert p('a', 'a')
def test_class_predicate_custom_name(self):
class callableclass(object):
def __call__(self, arg):
return arg == "a"
fn = callableclass()
p = Predicate(fn, name="bar")
assert p.name == "bar"
assert p.num_args == 1
assert p("a")
def test_class_predicate(self):
class callableclass(object):
def __call__(self, arg1, arg2):
return arg1 == arg2
fn = callableclass()
p = Predicate(fn)
assert p.name == "callableclass"
assert p.num_args == 2
assert p("a", "a")
def test_partial_method_predicate():
class SomeClass(object):
def some_method(self, arg1, arg2):
return arg1 == arg2
obj = SomeClass()
p = Predicate(functools.partial(obj.some_method, 2))
assert p.name == 'some_method'
assert p.num_args == 1
assert p(2)
def test_method_predicate():
class SomeClass(object):
def some_method(self, arg1, arg2):
return arg1 == arg2
obj = SomeClass()
p = Predicate(obj.some_method)
assert p.name == 'some_method'
assert p.num_args == 2
assert p(2, 2)
def test_class_predicate_custom_name():
class callableclass(object):
def __call__(self, arg):
return arg == 'a'
fn = callableclass()
p = Predicate(fn, name='bar')
assert p.name == 'bar'
assert p.num_args == 1
assert p('a')
def test_predicate_bind():
@predicate(bind=True)
def is_bound(self):
return self is is_bound
assert is_bound()
p = None
def mypred(self):
return self is p
p = Predicate(mypred, bind=True)
assert p()
def test_lambda_predicate(self):
p = Predicate(lambda x: x == "a")
assert p.name == "<lambda>"
assert p.num_args == 1
assert p("a")
def test_lambda_predicate_custom_name():
p = Predicate(lambda x: x == 'a', name='mypred')
assert p.name == 'mypred'
assert p.num_args == 1
assert p('a')
def test_lambda_predicate():
p = Predicate(lambda x: x == 'a')
assert p.name == '<lambda>'
assert p.num_args == 1
assert p('a')
def test_lambda_predicate_custom_name(self):
p = Predicate(lambda x: x == "a", name="mypred")
assert p.name == "mypred"
assert p.num_args == 1
assert p("a")
