def test_expand_alternatives_1(blank_resource_db):
db = blank_resource_db
a = RequirementSet.impossible()
b = make_single_set(make_req_a(db))
expected = make_single_set(make_req_a(db))
assert a.expand_alternatives(b) == expected
def test_trivial_merge(blank_game_description):
db = blank_game_description.resource_database
res_a, id_req_a = make_req_a(db)
trivial = RequirementSet.trivial()
impossible = RequirementSet.impossible()
the_set = RequirementSet([
RequirementList([id_req_a]),
])
assert trivial.union(trivial) == trivial
assert trivial.union(the_set) == the_set
assert the_set.union(trivial) == the_set
assert trivial.union(impossible) == impossible
assert impossible.union(the_set) == impossible
assert the_set.union(impossible) == impossible
assert the_set.union(the_set) == the_set
def test_set_as_str_impossible():
assert RequirementSet.impossible().as_str == "Impossible"
def test_impossible_requirement_as_set():
assert Requirement.impossible().as_set(None) == RequirementSet.impossible()
def test_expand_alternatives_2():
a = RequirementSet.impossible()
b = RequirementSet.trivial()
expected = RequirementSet.trivial()
assert a.expand_alternatives(b) == expected