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
42
43
44
45
46
47
48
49
50
51
52
53
54
|
# -*- coding: utf-8 -*-
import pytest
from pastel.style import Style
def test_push(stack):
s1 = Style("white", "black")
s2 = Style("yellow", "blue")
stack.push(s1)
stack.push(s2)
assert s2 == stack.get_current()
s3 = Style("green", "red")
stack.push(s3)
assert s3 == stack.get_current()
def test_pop(stack):
s1 = Style("white", "black")
s2 = Style("yellow", "blue")
stack.push(s1)
stack.push(s2)
assert s2 == stack.pop()
assert s1 == stack.pop()
def test_pop_empty(stack):
assert isinstance(stack.pop(), Style)
def test_pop_not_last(stack):
s1 = Style("white", "black")
s2 = Style("yellow", "blue")
s3 = Style("green", "red")
stack.push(s1)
stack.push(s2)
stack.push(s3)
assert s2 == stack.pop(s2)
assert s1 == stack.pop()
def test_invalid_pop(stack):
s1 = Style("white", "black")
s2 = Style("yellow", "blue")
stack.push(s1)
with pytest.raises(ValueError):
stack.pop(s2)
|
