def test_default_value_argument_prompts_until_correct_type_given(monkeypatch, capsys):
inputs = ['invalid', '2']
monkeypatch.setattr('builtins.input', lambda _: inputs.pop(0))
a = DefaultValueArgument('name', PrimitiveType(int), '3')
assert a.get_value({}) == 2
captured = capsys.readouterr()
assert escape_ansi(captured.out) == 'String "invalid" cannot be converted to int\n'
def test_create_unsupported_primitive_type(cls):
with pytest.raises(TypeError):
PrimitiveType(cls)
def test_value_representation(cls, value_in, value_out):
t = PrimitiveType(cls)
assert t.repr_value(value_in) == value_out
def test_cannot_cast_float_like_strings_to_int():
t = PrimitiveType(int)
with pytest.raises(ValueError):
assert t.cast('3.14')
def test_cannot_cast_strings_to_int():
t = PrimitiveType(int)
with pytest.raises(ValueError):
assert t.cast('string')
def test_no_default_value_argument_prompts_for_value_until_given(monkeypatch):
inputs = ['', '', '2']
monkeypatch.setattr('builtins.input', lambda _: inputs.pop(0))
a = NoDefaultValueArgument('name', PrimitiveType(int))
assert a.get_value({}) == 2
def test_default_value_argument_cast_value():
a = DefaultValueArgument('name', PrimitiveType(int), 'default')
assert a.get_value({'name': 3.14}) == 3
def test_default_value_argument_with_type_to_string():
a = DefaultValueArgument('name', PrimitiveType(int), 2)
assert str(a) == 'name [default: 2, type: int]'
def test_no_default_value_argument_with_type_to_string():
a = NoDefaultValueArgument('name', PrimitiveType(int))
assert str(a) == 'name [type: int]'
def test_default_value_argument_mistmatched_type_of_default_value():
a = DefaultValueArgument('name', PrimitiveType(int), 'string')
assert str(a) == 'name [default: string, type: int]'
def test_default_value_argument_passed_arguement_rewrites_default():
a = DefaultValueArgument('name', PrimitiveType(str), 'default')
assert a.get_value({'name': 'value'}, use_default=True) == 'value'
def test_default_value_argument_force_usage_of_default():
a = DefaultValueArgument('name', PrimitiveType(str), 'default')
assert a.get_value({}, use_default=True) == 'default'
def test_default_value_argument_empty_input_returns_default(monkeypatch):
monkeypatch.setattr('builtins.input', lambda _: '')
a = DefaultValueArgument('name', PrimitiveType(str), 'default')
assert a.get_value({}) == 'default'
def test_cast_values(cls, value_in, value_out):
t = PrimitiveType(cls)
assert t.cast(value_in) == value_out
def test_no_default_value_argument_prompts_for_value(monkeypatch):
monkeypatch.setattr('builtins.input', lambda _: 'string')
a = NoDefaultValueArgument('name', PrimitiveType(str))
assert a.get_value({}) == 'string'
def test_none_is_cast_to_none(cls):
t = PrimitiveType(cls)
assert t.cast(None) is None
def test_cast_value_if_possible():
r = Result('3.14', PrimitiveType(float))
assert r.value == 3.14