def test_has_instance(self):
from typecheck import Typeclass
tc = Typeclass(list, tuple)
assert tc.has_instance(list)
assert tc.has_instance(tuple)
assert not tc.has_instance(set)
tc.add_instance(set)
assert tc.has_instance(set)
def test_has_instance(self):
from typecheck import Typeclass
tc = Typeclass(list, tuple)
assert tc.has_instance(list)
assert tc.has_instance(tuple)
assert not tc.has_instance(set)
tc.add_instance(set)
assert tc.has_instance(set)
def test_intersect_1(self):
# Make sure .intersect works on other Typeclass instances
from typecheck import Typeclass
tc_int = Typeclass(int)
tc_flt = Typeclass(float)
interface_int = set(tc_int.interface())
interface_flt = set(tc_flt.interface())
merged_intfc = interface_int.intersection(interface_flt)
tc_int.intersect(tc_flt)
for t in (int, float):
assert tc_int.has_instance(t)
for method in merged_intfc:
assert method in tc_int.interface()
def test_intersect_1(self):
"""
Make sure .intersect works on other Typeclass instances
"""
from typecheck import Typeclass
tc_int = Typeclass(int)
tc_flt = Typeclass(float)
interface_int = set(tc_int.interface())
interface_flt = set(tc_flt.interface())
merged_intfc = interface_int.intersection(interface_flt)
tc_int.intersect(tc_flt)
for t in (int, float):
assert tc_int.has_instance(t)
for method in merged_intfc:
assert method in tc_int.interface()