FilesExpand file tree

 master

/

test_funcmod.py

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

41 lines (27 loc) · 1.24 KB

 master

/

test_funcmod.py

Copy path

Top

File metadata and controls

• Code
• Blame

41 lines (27 loc) · 1.24 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

"""Unit + property tests for funclib.funcmod."""

from hypothesis import given

from hypothesis import strategies as st

from funclib.funcmod import BJJ_BELTS, count_belts, list_of_belts_in_bjj

def test_list_of_belts_in_bjj() -> None:

assert list_of_belts_in_bjj() == ["white", "blue", "purple", "brown", "black"]

def test_count_belts() -> None:

assert count_belts() == 5

def test_belts_are_rank_ordered() -> None:

assert BJJ_BELTS[0] == "white"

assert BJJ_BELTS[-1] == "black"

@given(st.integers(min_value=0, max_value=50))

def test_list_is_pure_and_independent_of_call_count(_n: int) -> None:

"""list_of_belts_in_bjj is pure: identical output every call."""

first = list_of_belts_in_bjj()

for _ in range(_n):

assert list_of_belts_in_bjj() == first

@given(st.integers(min_value=1, max_value=20))

def test_count_belts_is_invariant(_n: int) -> None:

"""count_belts always returns the canonical belt count."""

for _ in range(_n):

assert count_belts() == len(BJJ_BELTS)

def test_returned_list_is_a_copy_not_shared_state() -> None:

"""Mutating the returned list must not affect later calls."""

first = list_of_belts_in_bjj()

first.append("rainbow")

assert list_of_belts_in_bjj() == list(BJJ_BELTS)