def test_case2_exception(self):
"""test case for sin(string)"""
calc = ScientificCalc()
self.assertEqual(calc.sin_func('string'), 'Please enter float or integer types input.')
def test_case3_negative(self):
"""test case for sin(-30)"""
calc = ScientificCalc()
self.assertEqual(calc.sin_func('-30'), 0.9880316240928618)
def test_case3_float(self):
"""test case for sin(30.8)"""
calc = ScientificCalc()
self.assertEqual(calc.sin_func('30.8'), -0.5777150444457317)
def test_case_positive(self):
"""test case for sin(30)"""
calc = ScientificCalc()
self.assertEqual(calc.sin_func('30'), -0.9880316240928618)