mirror of
https://github.com/JonasunderscoreJones/aka-worker.git
synced 2025-10-23 01:49:19 +02:00
77 lines
No EOL
4.1 KiB
JavaScript
77 lines
No EOL
4.1 KiB
JavaScript
"use strict";
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const assert = require ('assert')
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const printableCharacters = require (process.env.PRINTABLE_CHARACTERS_TEST_FILE)
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// cannot use spread operator in tests due to Node v4 compatibility requirements...
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const strlen = printableCharacters.strlen
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, isBlank = printableCharacters.isBlank
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, blank = printableCharacters.blank
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, ansiEscapeCodes = printableCharacters.ansiEscapeCodes
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, zeroWidthCharacters = printableCharacters.zeroWidthCharacters
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, partition = printableCharacters.partition
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, first = printableCharacters.first
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describe ('printable-characters', () => {
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it ('determines visible length', () => {
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assert.equal (strlen ('💩'), 1)
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//assert.equal (strlen ('👩❤️💋👩'), 1) // FAILING, see http://blog.jonnew.com/posts/poo-dot-length-equals-two for possible solution
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assert.equal (strlen ('❤️'), 1)
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assert.equal (strlen ('foo bar'), 7)
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assert.equal (strlen ('\u001b[106mfoo bar\u001b[49m'), 7)
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})
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it ('detects blank text', () => {
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assert (!isBlank ('💩'))
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assert (!isBlank ('foobar'))
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assert ( isBlank ('\u001b[106m \t \t \n \u001b[49m'))
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})
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it ('matches zero-width characters and ANSI escape codes', () => {
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let s = '\u001b[106m' + 'foo' + '\n\n' + 'bar' + '\u001b[49m'
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assert (s = s.replace (ansiEscapeCodes, ''), 'foo\n\nbar')
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assert ( s.replace (zeroWidthCharacters, ''), 'foobar')
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})
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it ('obtains blank string of the same width', () => {
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assert.equal (blank ('💩'), ' ')
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//assert.equal (blank ('👩❤️💋👩'), ' ') // FAILING, see http://blog.jonnew.com/posts/poo-dot-length-equals-two for possible solution
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assert.equal (blank ('❤️'), ' ')
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assert.equal (blank ('foo'), ' ')
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assert.equal (blank ('\n'), '\n')
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assert.equal (blank ('\t'), '\t')
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assert.equal (blank ('\tfoo \nfoo'), '\t \n ')
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assert.equal (blank ('\u001b[22m\u001b[1mfoo \t\u001b[39m\u001b[22m'), ' \t')
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})
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it ('extracts invisible parts followed by visible ones', () => {
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assert.deepEqual (partition (''), [ ])
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assert.deepEqual (partition ('foo'), [['', 'foo'] ])
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assert.deepEqual (partition ('\u001b[1mfoo'), [['\u001b[1m', 'foo'] ])
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assert.deepEqual (partition ('\u001b[1mfoo\u0000bar'), [['\u001b[1m', 'foo'], ['\u0000', 'bar'] ])
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assert.deepEqual (partition ('\u001b[1mfoo\u0000bar\n'), [['\u001b[1m', 'foo'], ['\u0000', 'bar'], ['\n', '']])
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})
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it ('gets first N visible symbols (preserving invisible parts)', () => {
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assert.equal (first ('💩23456789', 0), '')
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assert.equal (first ('💩23456789', 3), '💩23')
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assert.equal (first ('💩23456789', 100), '💩23456789')
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const s = '\u001b[22m\u001b[1m' + '💩23' + '\u0000' + '45' + '\u001b[39m' + '67' + '\n' + '89' + '\u001b[39m\u001b[22m'
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assert.equal (first (s, 0), '\u001b[22m\u001b[1m' + '' + '\u0000' + '' + '\u001b[39m' + '' + '\n' + '' + '\u001b[39m\u001b[22m')
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assert.equal (first (s, 3), '\u001b[22m\u001b[1m' + '💩23' + '\u0000' + '' + '\u001b[39m' + '' + '\n' + '' + '\u001b[39m\u001b[22m')
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assert.equal (first (s, 4), '\u001b[22m\u001b[1m' + '💩23' + '\u0000' + '4' + '\u001b[39m' + '' + '\n' + '' + '\u001b[39m\u001b[22m')
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assert.equal (first (s, 6), '\u001b[22m\u001b[1m' + '💩23' + '\u0000' + '45' + '\u001b[39m' + '6' + '\n' + '' + '\u001b[39m\u001b[22m')
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assert.equal (first (s, 9), '\u001b[22m\u001b[1m' + '💩23' + '\u0000' + '45' + '\u001b[39m' + '67' + '\n' + '89' + '\u001b[39m\u001b[22m')
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assert.equal (first (s, 100), '\u001b[22m\u001b[1m' + '💩23' + '\u0000' + '45' + '\u001b[39m' + '67' + '\n' + '89' + '\u001b[39m\u001b[22m')
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})
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}) |