def test_abc_with_decimal_argument_fails():
"""Test that string with letters in fails when we supply 'decimal'."""
test = CastToInteger()(
'abc',
'decimal',
)
assert not is_successful(test)
assert isinstance(test.failure(), ValueError)
assert 'Illegal characters in value' in str(test.failure())
def test_cast_string():
"""Cast a string with numbers to integer."""
assert CastToInteger()('123').unwrap() == target
def test_cast_decimal_string_rounds_down():
"""Cast a decimal string < .0 should round down."""
assert CastToInteger()(
'123.49',
'decimal',
).unwrap() == target
def test_abc_fails():
"""Test that string with letters in fails."""
test = CastToInteger()('abc')
assert not is_successful(test)
assert isinstance(test.failure(), ValueError)
assert 'Illegal characters in value' in str(test.failure())
def test_once_more_cast_decimal_string_rounds_up():
"""Cast a decimal string >= .5 should round up."""
assert CastToInteger()(
'123.5',
'decimal',
).unwrap() == 124
def test_cast_decimal_string_rounds_up():
"""Cast a decimal string >= .5 should round up."""
assert CastToInteger()(
'122.5',
'decimal',
).unwrap() == target
def test_cast_negative_decimal_string():
"""Cast a negative decimal string to integer."""
assert CastToInteger()(
'-123.0', 'decimal',
).unwrap() == -target
def test_cast_decimal_string():
"""Cast a decimal string to integer."""
assert CastToInteger()(
'123.0',
'decimal',
).unwrap() == target
def test_cast_negative_string():
"""Cast string with negative number to integer."""
assert CastToInteger()('-123').unwrap() == -target