49 lines
1.9 KiB
Python
49 lines
1.9 KiB
Python
import unittest
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from cwcwidth import wcwidth, wcswidth
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class Tests(unittest.TestCase):
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def exec_test(
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self, phrase, individual_expected_lengths, expected_length=None, n=None
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):
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if expected_length is None:
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expected_length = sum(individual_expected_lengths)
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self.assertEqual(
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individual_expected_lengths,
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tuple(map(wcwidth, phrase if n is None else phrase[:n])),
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)
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self.assertEqual(expected_length, wcswidth(phrase, n))
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def test_hello_jp(self):
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"""Width of Japanese phrase: コンニチハ, セカイ!"""
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self.exec_test("コンニチハ, セカイ!", (2, 2, 2, 2, 2, 1, 1, 2, 2, 2, 1))
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def test_wcswidth_substr(self):
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"""Test wcswidth() optional 2nd parameter, ``n``."""
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self.exec_test("コンニチハ, セカイ!", (2, 2, 2, 2, 2, 1, 1), n=7)
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def test_null_width_0(self):
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"""NULL (0) reports width 0."""
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self.exec_test("abc\x00def", (1, 1, 1, 0, 1, 1, 1))
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self.exec_test("abc\x00def", (1, 1, 1, 0, 1, 1, 1), n=7)
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def test_control_c0_width_negative_1(self):
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"""CSI (Control sequence initiate) reports width -1."""
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self.exec_test("\x1b[0m", (-1, 1, 1, 1), expected_length=-1)
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def test_combining_width_negative_1(self):
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"""Simple test combining reports total width of 4."""
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self.exec_test("--\u05bf--", (1, 1, 0, 1, 1))
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def test_combining_cafe(self):
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"""Phrase cafe + COMBINING ACUTE ACCENT is café of length 4."""
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self.exec_test("cafe\u0301", (1, 1, 1, 1, 0))
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def test_combining_enclosing(self):
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"""CYRILLIC CAPITAL LETTER A + COMBINING CYRILLIC HUNDRED THOUSANDS SIGN is А҈ of length 1."""
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expect_length_each = (1, 0)
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self.exec_test("\u0410\u0488", (1, 0))
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def test_combining_spacing(self):
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"""Balinese kapal (ship) is ᬓᬨᬮ᭄ of length 4."""
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self.exec_test("\u1B13\u1B28\u1B2E\u1B44", (1, 1, 1, 1))
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