Coverage for tests\test_calc_func.py: 100%

1""" 

2test_calc_func.py contains pytest tests for math functions. 

3pytest discovers tests named "test_*". 

4Each function in this module is a test case. 

5""" 

6 

7import pytest 

8from com.automationpanda.example.calc_func import * 

9 

10NUMBER_1 = 3.0 

11NUMBER_2 = 2.0 

12 

13 

14def test_add(): 

15 value = add(NUMBER_1, NUMBER_2) 

16 assert value == 5.0 

17 

18 

19def test_subtract(): 

20 value = subtract(NUMBER_1, NUMBER_2) 

21 assert value == 1.0 

22 

23 

24def test_subtract_negative(): 

25 value = subtract(NUMBER_2, NUMBER_1) 

26 assert value == -1.0 

27 

28 

29def test_multiply(): 

30 value = multiply(NUMBER_1, NUMBER_2) 

31 assert value == 6.0 

32 

33 

34def test_divide(): 

35 value = divide(NUMBER_1, NUMBER_2) 

36 assert value == 1.5 

37 

38 

39# Test for dividing by zero catches the exception 

40# http://doc.pytest.org/en/latest/assert.html#assertions-about-expected-exceptions 

41 

42def test_divide_by_zero(): 

43 with pytest.raises(ZeroDivisionError) as e: 

44 divide(NUMBER_1, 0) 

45 assert "division by zero" in str(e.value) 

46 

47 

48# Tests for maximum and minimum use parameters 

49# http://doc.pytest.org/en/latest/parametrize.html 

50 

51@pytest.mark.parametrize("a,b,expected", [ 

52 (NUMBER_1, NUMBER_2, NUMBER_1), 

53 (NUMBER_2, NUMBER_1, NUMBER_1), 

54 (NUMBER_1, NUMBER_1, NUMBER_1), 

55]) 

56def test_maximum(a, b, expected): 

57 assert maximum(a, b) == expected 

58 

59 

60@pytest.mark.parametrize("a,b,expected", [ 

61 (NUMBER_1, NUMBER_2, NUMBER_2), 

62 (NUMBER_2, NUMBER_1, NUMBER_2), 

63 (NUMBER_2, NUMBER_2, NUMBER_2), 

64]) 

65def test_minimum(a, b, expected): 

66 assert minimum(a, b) == expected