def test_contains_exactly_does_not_write_to_mismatch_output_if_it_matches():
mismatch_output = []
assert contains_exactly().matches([], mismatch_output)
assert contains_exactly().matches((), mismatch_output)
assert contains_exactly(equal_to(42), equal_to(9)).matches([42, 9], mismatch_output)
assert contains_exactly(equal_to(42), equal_to(9)).matches([9, 42], mismatch_output)
assert not mismatch_output
def test_contains_exactly_writes_extra_elements_to_mismatch_output():
mismatch_output = []
contains_exactly(equal_to(42), equal_to(9)).matches([42, 1, 9, "eggs"], mismatch_output)
assert_equals(["iterable contained extra elements: 1, 'eggs' (got: [42, 1, 9, 'eggs'])"], mismatch_output)
def test_contains_exactly_writes_not_iterable_to_mismatch_output_if_not_passed_an_iterable():
mismatch_output = []
contains_exactly(equal_to(42), equal_to(9)).matches(None, mismatch_output)
assert_equals(["was not iterable (got: None)"], mismatch_output)
def test_contains_exactly_describes_missing_element_in_mismatch_output():
mismatch_output = []
contains_exactly(equal_to(42), equal_to(9)).matches([42], mismatch_output)
assert_equals(["iterable did not contain element: 9 (got: [42])"], mismatch_output)
def test_contains_exactly_describes_all_sub_matchers():
assert_equals(str(contains_exactly(equal_to(42), equal_to(9))), "<iterable containing exactly: 42, 9>")
def test_not_writes_matcher_as_mismatch_description():
mismatch_output = []
not_(equal_to("Blah")).matches("Blah", mismatch_output)
assert_equals(["got value matching: 'Blah'"], mismatch_output)
def test_contains_exactly_matches_any_collection_with_only_those_elements_in_any_order():
assert contains_exactly(equal_to(42), equal_to(9)).matches([42, 9], [])
assert contains_exactly(equal_to(42), equal_to(9)).matches(set([42, 9]), [])
assert contains_exactly(equal_to(42), equal_to(9)).matches([9, 42], [])
assert not contains_exactly(equal_to(42), equal_to(9)).matches([42], [])
assert not contains_exactly(equal_to(42), equal_to(9)).matches([9], [])
assert not contains_exactly(equal_to(42), equal_to(9)).matches([], [])
assert not contains_exactly(equal_to(42), equal_to(9)).matches([42, 9, 1], [])
def test_not_to_str_prefixes_not_to_matcher_description():
assert_equals(str(not_(equal_to("Blah"))), "not 'Blah'")
def test_not_does_not_write_to_mismatch_output_if_it_matches():
mismatch_output = []
assert not_(equal_to(1)).matches("Blah", mismatch_output)
assert not_(equal_to("Blah")).matches(1, mismatch_output)
assert not mismatch_output
def test_not_negates_given_matcher():
assert not not_(equal_to(1)).matches(1, [])
assert not not_(equal_to("Blah")).matches("Blah", [])
assert not_(equal_to(1)).matches("Blah", [])
assert not_(equal_to("Blah")).matches(1, [])
def test_equal_to_writes_str_of_non_matching_values_to_mismatch_output():
mismatch_output = []
equal_to("banana").matches("coconut", mismatch_output)
assert_equals(["got 'coconut'"], mismatch_output)
def test_equal_to_does_not_write_to_mismatch_output_if_it_matches():
mismatch_output = []
assert equal_to("durian").matches("durian", mismatch_output)
assert equal_to(22).matches(22, mismatch_output)
assert not mismatch_output
def test_equal_to_str_uses_value_str():
assert_equals(str(equal_to("Blah")), "'Blah'")
def test_equal_to_matches_on_equality():
assert equal_to(1).matches(1, [])
assert equal_to("Blah").matches("Blah", [])
assert not equal_to(1).matches("Blah", [])
assert not equal_to("Blah").matches(1, [])
