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authorMinteck <freeziv.ytb@gmail.com>2021-03-07 18:29:17 +0100
committerMinteck <freeziv.ytb@gmail.com>2021-03-07 18:29:17 +0100
commit0f79e708bf07721b73ea41e5d341be08e8ea4dce (patch)
treef3c63cd6a9f4ef0b26f95eec6a031600232e80c8 /node_modules/wcwidth/test
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Initial commit
Diffstat (limited to 'node_modules/wcwidth/test')
-rw-r--r--node_modules/wcwidth/test/index.js64
1 files changed, 64 insertions, 0 deletions
diff --git a/node_modules/wcwidth/test/index.js b/node_modules/wcwidth/test/index.js
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+"use strict"
+
+var wcwidth = require('../')
+var test = require('tape')
+
+test('handles regular strings', function(t) {
+ t.strictEqual(wcwidth('abc'), 3)
+ t.end()
+})
+
+test('handles multibyte strings', function(t) {
+ t.strictEqual(wcwidth('字的模块'), 8)
+ t.end()
+})
+
+test('handles multibyte characters mixed with regular characters', function(t) {
+ t.strictEqual(wcwidth('abc 字的模块'), 12)
+ t.end()
+})
+
+test('ignores control characters e.g. \\n', function(t) {
+ t.strictEqual(wcwidth('abc\n字的模块\ndef'), 14)
+ t.end()
+})
+
+test('ignores bad input', function(t) {
+ t.strictEqual(wcwidth(''), 0)
+ t.strictEqual(wcwidth(3), 0)
+ t.strictEqual(wcwidth({}), 0)
+ t.strictEqual(wcwidth([]), 0)
+ t.strictEqual(wcwidth(), 0)
+ t.end()
+})
+
+test('ignores nul (charcode 0)', function(t) {
+ t.strictEqual(wcwidth(String.fromCharCode(0)), 0)
+ t.end()
+})
+
+test('ignores nul mixed with chars', function(t) {
+ t.strictEqual(wcwidth('a' + String.fromCharCode(0) + '\n字的'), 5)
+ t.end()
+})
+
+test('can have custom value for nul', function(t) {
+ t.strictEqual(wcwidth.config({
+ nul: 10
+ })(String.fromCharCode(0) + 'a字的'), 15)
+ t.end()
+})
+
+test('can have custom control char value', function(t) {
+ t.strictEqual(wcwidth.config({
+ control: 1
+ })('abc\n字的模块\ndef'), 16)
+ t.end()
+})
+
+test('negative custom control chars == -1', function(t) {
+ t.strictEqual(wcwidth.config({
+ control: -1
+ })('abc\n字的模块\ndef'), -1)
+ t.end()
+})