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import {assert, test} from 'vitest';
// No exports map support
// https://github.com/eslint-community/eslint-plugin-n/issues/50
// eslint-disable-next-line n/file-extension-in-import
import hl from 'highlight.js/lib/common';
import showWhiteSpacesOnLine from './show-whitespace-on-line.js';
function highlight(html: string): string {
// Use highlighter to create multiple text nodes
return hl.highlight(html, {language: 'js'}).value;
}
function serializeDOM(element: Element): string {
for (const replacement of element.querySelectorAll('[data-rgh-whitespace]')) {
switch (replacement.getAttribute('data-rgh-whitespace')) {
case 'space': {
replacement.replaceWith(replacement.innerHTML.replaceAll(' ', '•'));
break;
}
case 'tab': {
replacement.replaceWith(replacement.innerHTML.replaceAll('\t', '⟶'));
break;
}
default:
}
}
for (const highlighting of element.querySelectorAll('[class^="hljs"]')) {
highlighting.replaceWith(highlighting.innerHTML);
}
// Compare against the HTML to ensure we're making all the necessary replacements
return element.innerHTML;
}
function process(html: string): string {
const element = document.createElement('div');
element.innerHTML = html;
return serializeDOM(showWhiteSpacesOnLine(element));
}
function assertProcess(actual: string, expected: string): void {
assert.equal(process(actual), expected);
}
function assertHighlighted(actual: string, expected: string): void {
assert.equal(process(highlight(actual)), expected);
}
test('showWhiteSpacesOnLine raw', () => {
assertProcess(
'',
'',
);
assertProcess(
' ',
'•',
);
assertProcess(
' ',
'••',
);
assertProcess(
' ',
'⟶',
);
assertProcess(
' ',
'⟶⟶',
);
assertProcess(
' ',
'⟶•',
);
assertProcess(
' ',
'•⟶',
);
assertProcess(
' ',
'•⟶•',
);
assertProcess(
' ',
'⟶•⟶',
);
assertProcess(
' hello ',
'•hello•',
);
assertProcess(
' hello ',
'⟶hello⟶',
);
assertProcess(
' hello world ',
'⟶hello•world⟶',
);
});
test('showWhiteSpacesOnLine real code', () => {
assertProcess(
'[1,""]',
'[1,""]',
);
assertProcess(
'[1," "]',
'[1,"••"]',
);
assertProcess(
'[1, " "]',
'[1,•"••"]',
);
assertProcess(
' [1, " "] ',
'•[1,•"••"]•',
);
assertProcess(
' [1, " "] ',
'••[1,•"••"]••',
);
assertProcess(
'[1,""]',
'[1,""]',
);
assertProcess(
'[1," "]',
'[1,"⟶⟶"]',
);
assertProcess(
'[1, " "]',
'[1,⟶"⟶⟶"]',
);
assertProcess(
' [1, " "] ',
'⟶[1,⟶"⟶⟶"]⟶',
);
assertProcess(
' [1, " "] ',
'⟶⟶[1,⟶"⟶⟶"]⟶⟶',
);
});
test('showWhiteSpacesOnLine highlighted code', () => {
assertHighlighted(
'[1,""]',
'[1,""]',
);
assertHighlighted(
'[1," "]',
'[1,"••"]',
);
assertHighlighted(
'[1, " "]',
'[1, "••"]',
);
assertHighlighted(
' [1, " "] ',
'•[1, "••"]•',
);
assertHighlighted(
' [1, " "] ',
'••[1, "••"]••',
);
assertHighlighted(
'[1,""]',
'[1,""]',
);
assertHighlighted(
'[1," "]',
'[1,"⟶⟶"]',
);
assertHighlighted(
'[1, " "]',
'[1,⟶"⟶⟶"]',
);
assertHighlighted(
' [1, " "] ',
'⟶[1,⟶"⟶⟶"]⟶',
);
assertHighlighted(
' [1, " "] ',
'⟶⟶[1,⟶"⟶⟶"]⟶⟶',
);
});
|
