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64 lines
1.4 KiB
64 lines
1.4 KiB
"use strict" |
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var wcwidth = require('../') |
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var test = require('tape') |
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test('handles regular strings', function(t) { |
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t.strictEqual(wcwidth('abc'), 3) |
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t.end() |
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}) |
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test('handles multibyte strings', function(t) { |
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t.strictEqual(wcwidth('字的模块'), 8) |
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t.end() |
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}) |
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test('handles multibyte characters mixed with regular characters', function(t) { |
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t.strictEqual(wcwidth('abc 字的模块'), 12) |
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t.end() |
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}) |
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test('ignores control characters e.g. \\n', function(t) { |
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t.strictEqual(wcwidth('abc\n字的模块\ndef'), 14) |
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t.end() |
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}) |
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test('ignores bad input', function(t) { |
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t.strictEqual(wcwidth(''), 0) |
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t.strictEqual(wcwidth(3), 0) |
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t.strictEqual(wcwidth({}), 0) |
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t.strictEqual(wcwidth([]), 0) |
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t.strictEqual(wcwidth(), 0) |
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t.end() |
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}) |
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test('ignores nul (charcode 0)', function(t) { |
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t.strictEqual(wcwidth(String.fromCharCode(0)), 0) |
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t.end() |
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}) |
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test('ignores nul mixed with chars', function(t) { |
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t.strictEqual(wcwidth('a' + String.fromCharCode(0) + '\n字的'), 5) |
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t.end() |
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}) |
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test('can have custom value for nul', function(t) { |
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t.strictEqual(wcwidth.config({ |
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nul: 10 |
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})(String.fromCharCode(0) + 'a字的'), 15) |
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t.end() |
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}) |
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test('can have custom control char value', function(t) { |
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t.strictEqual(wcwidth.config({ |
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control: 1 |
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})('abc\n字的模块\ndef'), 16) |
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t.end() |
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}) |
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test('negative custom control chars == -1', function(t) { |
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t.strictEqual(wcwidth.config({ |
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control: -1 |
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})('abc\n字的模块\ndef'), -1) |
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t.end() |
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})
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