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
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
# coding: utf-8
"""Core tests for wcwidth module. isort:skip_file"""
try:
# std import
import importlib.metadata as importmeta
except ImportError:
# 3rd party for python3.7 and earlier
import importlib_metadata as importmeta
# local
import wcwidth
def test_package_version():
"""wcwidth.__version__ is expected value."""
# given,
expected = importmeta.version('wcwidth')
# exercise,
result = wcwidth.__version__
# verify.
assert result == expected
def test_hello_jp():
u"""
Width of Japanese phrase: コンニチハ, セカイ!
Given a phrase of 5 and 3 Katakana ideographs, joined with
3 English-ASCII punctuation characters, totaling 11, this
phrase consumes 19 cells of a terminal emulator.
"""
# given,
phrase = u'コンニチハ, セカイ!'
expect_length_each = (2, 2, 2, 2, 2, 1, 1, 2, 2, 2, 1)
expect_length_phrase = sum(expect_length_each)
# exercise,
length_each = tuple(map(wcwidth.wcwidth, phrase))
length_phrase = wcwidth.wcswidth(phrase)
# verify.
assert length_each == expect_length_each
assert length_phrase == expect_length_phrase
def test_wcswidth_substr():
"""
Test wcswidth() optional 2nd parameter, ``n``.
``n`` determines at which position of the string
to stop counting length.
"""
# given,
phrase = u'コンニチハ, セカイ!'
end = 7
expect_length_each = (2, 2, 2, 2, 2, 1, 1,)
expect_length_phrase = sum(expect_length_each)
# exercise,
length_phrase = wcwidth.wcswidth(phrase, end)
# verify.
assert length_phrase == expect_length_phrase
def test_null_width_0():
"""NULL (0) reports width 0."""
# given,
phrase = u'abc\x00def'
expect_length_each = (1, 1, 1, 0, 1, 1, 1)
expect_length_phrase = sum(expect_length_each)
# exercise,
length_each = tuple(map(wcwidth.wcwidth, phrase))
length_phrase = wcwidth.wcswidth(phrase, len(phrase))
# verify.
assert length_each == expect_length_each
assert length_phrase == expect_length_phrase
def test_control_c0_width_negative_1():
"""CSI (Control sequence initiate) reports width -1 for ESC."""
# given,
phrase = u'\x1b[0m'
expect_length_each = (-1, 1, 1, 1)
expect_length_phrase = -1
# exercise,
length_each = tuple(map(wcwidth.wcwidth, phrase))
length_phrase = wcwidth.wcswidth(phrase, len(phrase))
# verify.
assert length_each == expect_length_each
assert length_phrase == expect_length_phrase
def test_combining_width():
"""Simple test combining reports total width of 4."""
# given,
phrase = u'--\u05bf--'
expect_length_each = (1, 1, 0, 1, 1)
expect_length_phrase = 4
# exercise,
length_each = tuple(map(wcwidth.wcwidth, phrase))
length_phrase = wcwidth.wcswidth(phrase, len(phrase))
# verify.
assert length_each == expect_length_each
assert length_phrase == expect_length_phrase
def test_combining_cafe():
u"""Phrase cafe + COMBINING ACUTE ACCENT is café of length 4."""
phrase = u"cafe\u0301"
expect_length_each = (1, 1, 1, 1, 0)
expect_length_phrase = 4
# exercise,
length_each = tuple(map(wcwidth.wcwidth, phrase))
length_phrase = wcwidth.wcswidth(phrase, len(phrase))
# verify.
assert length_each == expect_length_each
assert length_phrase == expect_length_phrase
def test_combining_enclosing():
u"""CYRILLIC CAPITAL LETTER A + COMBINING CYRILLIC HUNDRED THOUSANDS SIGN is А҈ of length 1."""
phrase = u"\u0410\u0488"
expect_length_each = (1, 0)
expect_length_phrase = 1
# exercise,
length_each = tuple(map(wcwidth.wcwidth, phrase))
length_phrase = wcwidth.wcswidth(phrase, len(phrase))
# verify.
assert length_each == expect_length_each
assert length_phrase == expect_length_phrase
def test_combining_spacing():
u"""Balinese kapal (ship) is ᬓᬨᬮ᭄ of length 4."""
phrase = u"\u1B13\u1B28\u1B2E\u1B44"
expect_length_each = (1, 1, 1, 1)
expect_length_phrase = 4
# exercise,
length_each = tuple(map(wcwidth.wcwidth, phrase))
length_phrase = wcwidth.wcswidth(phrase, len(phrase))
# verify.
assert length_each == expect_length_each
assert length_phrase == expect_length_phrase
|
