mirror of
https://github.com/JonasunderscoreJones/api.jonasjones.dev.git
synced 2025-10-23 03:59:19 +02:00
77 lines
No EOL
4.1 KiB
JavaScript
77 lines
No EOL
4.1 KiB
JavaScript
"use strict";
|
|
|
|
const assert = require ('assert')
|
|
const printableCharacters = require (process.env.PRINTABLE_CHARACTERS_TEST_FILE)
|
|
|
|
// cannot use spread operator in tests due to Node v4 compatibility requirements...
|
|
const strlen = printableCharacters.strlen
|
|
, isBlank = printableCharacters.isBlank
|
|
, blank = printableCharacters.blank
|
|
, ansiEscapeCodes = printableCharacters.ansiEscapeCodes
|
|
, zeroWidthCharacters = printableCharacters.zeroWidthCharacters
|
|
, partition = printableCharacters.partition
|
|
, first = printableCharacters.first
|
|
|
|
describe ('printable-characters', () => {
|
|
|
|
it ('determines visible length', () => {
|
|
|
|
assert.equal (strlen ('💩'), 1)
|
|
//assert.equal (strlen ('👩❤️💋👩'), 1) // FAILING, see http://blog.jonnew.com/posts/poo-dot-length-equals-two for possible solution
|
|
assert.equal (strlen ('❤️'), 1)
|
|
assert.equal (strlen ('foo bar'), 7)
|
|
assert.equal (strlen ('\u001b[106mfoo bar\u001b[49m'), 7)
|
|
})
|
|
|
|
it ('detects blank text', () => {
|
|
|
|
assert (!isBlank ('💩'))
|
|
assert (!isBlank ('foobar'))
|
|
assert ( isBlank ('\u001b[106m \t \t \n \u001b[49m'))
|
|
})
|
|
|
|
it ('matches zero-width characters and ANSI escape codes', () => {
|
|
|
|
let s = '\u001b[106m' + 'foo' + '\n\n' + 'bar' + '\u001b[49m'
|
|
|
|
assert (s = s.replace (ansiEscapeCodes, ''), 'foo\n\nbar')
|
|
assert ( s.replace (zeroWidthCharacters, ''), 'foobar')
|
|
})
|
|
|
|
it ('obtains blank string of the same width', () => {
|
|
|
|
assert.equal (blank ('💩'), ' ')
|
|
//assert.equal (blank ('👩❤️💋👩'), ' ') // FAILING, see http://blog.jonnew.com/posts/poo-dot-length-equals-two for possible solution
|
|
assert.equal (blank ('❤️'), ' ')
|
|
assert.equal (blank ('foo'), ' ')
|
|
assert.equal (blank ('\n'), '\n')
|
|
assert.equal (blank ('\t'), '\t')
|
|
assert.equal (blank ('\tfoo \nfoo'), '\t \n ')
|
|
assert.equal (blank ('\u001b[22m\u001b[1mfoo \t\u001b[39m\u001b[22m'), ' \t')
|
|
})
|
|
|
|
it ('extracts invisible parts followed by visible ones', () => {
|
|
|
|
assert.deepEqual (partition (''), [ ])
|
|
assert.deepEqual (partition ('foo'), [['', 'foo'] ])
|
|
assert.deepEqual (partition ('\u001b[1mfoo'), [['\u001b[1m', 'foo'] ])
|
|
assert.deepEqual (partition ('\u001b[1mfoo\u0000bar'), [['\u001b[1m', 'foo'], ['\u0000', 'bar'] ])
|
|
assert.deepEqual (partition ('\u001b[1mfoo\u0000bar\n'), [['\u001b[1m', 'foo'], ['\u0000', 'bar'], ['\n', '']])
|
|
})
|
|
|
|
it ('gets first N visible symbols (preserving invisible parts)', () => {
|
|
|
|
assert.equal (first ('💩23456789', 0), '')
|
|
assert.equal (first ('💩23456789', 3), '💩23')
|
|
assert.equal (first ('💩23456789', 100), '💩23456789')
|
|
|
|
const s = '\u001b[22m\u001b[1m' + '💩23' + '\u0000' + '45' + '\u001b[39m' + '67' + '\n' + '89' + '\u001b[39m\u001b[22m'
|
|
|
|
assert.equal (first (s, 0), '\u001b[22m\u001b[1m' + '' + '\u0000' + '' + '\u001b[39m' + '' + '\n' + '' + '\u001b[39m\u001b[22m')
|
|
assert.equal (first (s, 3), '\u001b[22m\u001b[1m' + '💩23' + '\u0000' + '' + '\u001b[39m' + '' + '\n' + '' + '\u001b[39m\u001b[22m')
|
|
assert.equal (first (s, 4), '\u001b[22m\u001b[1m' + '💩23' + '\u0000' + '4' + '\u001b[39m' + '' + '\n' + '' + '\u001b[39m\u001b[22m')
|
|
assert.equal (first (s, 6), '\u001b[22m\u001b[1m' + '💩23' + '\u0000' + '45' + '\u001b[39m' + '6' + '\n' + '' + '\u001b[39m\u001b[22m')
|
|
assert.equal (first (s, 9), '\u001b[22m\u001b[1m' + '💩23' + '\u0000' + '45' + '\u001b[39m' + '67' + '\n' + '89' + '\u001b[39m\u001b[22m')
|
|
assert.equal (first (s, 100), '\u001b[22m\u001b[1m' + '💩23' + '\u0000' + '45' + '\u001b[39m' + '67' + '\n' + '89' + '\u001b[39m\u001b[22m')
|
|
})
|
|
}) |