def test_j_function_multiply_output(self):
"""[Lab 3] - [Investigation 2] - [Part 1] - functions & arguments & logic - function operate() fails with division"""
# Try to import before testing
try:
import lab3c as lab3cStudent
except:
self.fail(
'lab3c.py contains errors(HINT: run the function and fix errors'
)
error_output = 'function operate shows wrong output(HINT: the output must match exactly)'
self.assertEqual(
str(lab3cStudent.operate(5, 50, 'divide')),
'Error: function operator can be "add", "subtract", or "multiply"')
def test_h_function_subtract_output(self):
"""[Lab 3] - [Investigation 2] - [Part 1] - functions & arguments & logic - function operate() subtracts correctly test 2"""
# Try to import before testing
try:
import lab3c as lab3cStudent
except:
self.fail(
'lab3c.py contains errors(HINT: run the function and fix errors'
)
error_output = 'problem subtracting(HINT: operate(5, 50, \'subtract\')'
self.assertEqual(str(lab3cStudent.operate(5, 50, 'subtract')),
'-45',
msg=error_output)
def test_i_function_multiply_output(self):
"""[Lab 3] - [Investigation 2] - [Part 1] - functions & arguments & logic - function operate() multiplies correctly test 2"""
# Try to import before testing
try:
import lab3c as lab3cStudent
except:
self.fail(
'lab3c.py contains errors(HINT: run the function and fix errors'
)
error_output = 'problem multiplying(HINT: operate(5, 50, \'multiply\')'
self.assertEqual(str(lab3cStudent.operate(5, 50, 'multiply')),
'250',
msg=error_output)
def test_d_function_sum_output(self):
"""[Lab 3] - [Investigation 2] - [Part 1] - functions & arguments & logic - function operate() adds correctly test 1"""
# Try to import before testing
try:
import lab3c as lab3cStudent
except:
self.fail(
'lab3c.py contains errors(HINT: run the function and fix errors'
)
error_output = 'problem adding(HINT: operate(10, 5, \'add\')'
self.assertEqual(str(lab3cStudent.operate(10, 5, 'add')),
'15',
msg=error_output)