ec984d71f6
* Add cache and cache purging Needed for https://github.com/rrweb-io/rrweb-snapshot/pull/85 * Add cache and cache purging Needed for https://github.com/rrweb-io/rrweb-snapshot/pull/85 * Cache addHoverClass as it is quite expensive https://github.com/rrweb-io/rrweb-snapshot/pull/85 * Make cache non-optional * Make cache required on addHoverClass
98 lines
3.1 KiB
TypeScript
98 lines
3.1 KiB
TypeScript
import * as fs from 'fs';
|
|
import * as path from 'path';
|
|
import { Suite } from 'mocha';
|
|
import { expect } from 'chai';
|
|
import { addHoverClass, createCache } from '../src/rebuild';
|
|
import { BuildCache } from '../src/types';
|
|
|
|
function getDuration(hrtime: [number, number]) {
|
|
const [seconds, nanoseconds] = hrtime;
|
|
return seconds * 1000 + nanoseconds / 1000000;
|
|
}
|
|
|
|
interface ISuite extends Suite {
|
|
cache: BuildCache;
|
|
}
|
|
|
|
describe('add hover class to hover selector related rules', function (this: ISuite) {
|
|
beforeEach(() => {
|
|
this.cache = createCache();
|
|
});
|
|
|
|
it('will do nothing to css text without :hover', () => {
|
|
const cssText = 'body { color: white }';
|
|
expect(addHoverClass(cssText, this.cache)).to.equal(cssText);
|
|
});
|
|
|
|
it('can add hover class to css text', () => {
|
|
const cssText = '.a:hover { color: white }';
|
|
expect(addHoverClass(cssText, this.cache)).to.equal(
|
|
'.a:hover, .a.\\:hover { color: white }',
|
|
);
|
|
});
|
|
|
|
it('can add hover class when there is multi selector', () => {
|
|
const cssText = '.a, .b:hover, .c { color: white }';
|
|
expect(addHoverClass(cssText, this.cache)).to.equal(
|
|
'.a, .b:hover, .b.\\:hover, .c { color: white }',
|
|
);
|
|
});
|
|
|
|
it('can add hover class when there is a multi selector with the same prefix', () => {
|
|
const cssText = '.a:hover, .a:hover::after { color: white }';
|
|
expect(addHoverClass(cssText, this.cache)).to.equal(
|
|
'.a:hover, .a.\\:hover, .a:hover::after, .a.\\:hover::after { color: white }',
|
|
);
|
|
});
|
|
|
|
it('can add hover class when :hover is not the end of selector', () => {
|
|
const cssText = 'div:hover::after { color: white }';
|
|
expect(addHoverClass(cssText, this.cache)).to.equal(
|
|
'div:hover::after, div.\\:hover::after { color: white }',
|
|
);
|
|
});
|
|
|
|
it('can add hover class when the selector has multi :hover', () => {
|
|
const cssText = 'a:hover b:hover { color: white }';
|
|
expect(addHoverClass(cssText, this.cache)).to.equal(
|
|
'a:hover b:hover, a.\\:hover b.\\:hover { color: white }',
|
|
);
|
|
});
|
|
|
|
it('will ignore :hover in css value', () => {
|
|
const cssText = '.a::after { content: ":hover" }';
|
|
expect(addHoverClass(cssText, this.cache)).to.equal(cssText);
|
|
});
|
|
|
|
it('benchmark', () => {
|
|
const cssText = fs.readFileSync(
|
|
path.resolve(__dirname, './css/benchmark.css'),
|
|
'utf8',
|
|
);
|
|
const start = process.hrtime();
|
|
addHoverClass(cssText, this.cache);
|
|
const end = process.hrtime(start);
|
|
const duration = getDuration(end);
|
|
expect(duration).to.below(100);
|
|
});
|
|
|
|
it('should be a lot faster to add a hover class to a previously processed css string', () => {
|
|
const factor = 100;
|
|
|
|
let cssText = fs.readFileSync(
|
|
path.resolve(__dirname, './css/benchmark.css'),
|
|
'utf8',
|
|
);
|
|
|
|
const start = process.hrtime();
|
|
addHoverClass(cssText, this.cache);
|
|
const end = process.hrtime(start);
|
|
|
|
const cachedStart = process.hrtime();
|
|
addHoverClass(cssText, this.cache);
|
|
const cachedEnd = process.hrtime(cachedStart);
|
|
|
|
expect(getDuration(cachedEnd) * factor).to.below(getDuration(end));
|
|
});
|
|
});
|