moved rrweb-snapshot into packages/rrweb-snapshot

packages/rrweb-snapshot/test/rebuild.test.ts

@@ -0,0 +1,64 @@
+import * as fs from 'fs';
+import * as path from 'path';
+import 'mocha';
+import { expect } from 'chai';
+import { addHoverClass } from '../src/rebuild';
+
+describe('add hover class to hover selector related rules', () => {
+  it('will do nothing to css text without :hover', () => {
+    const cssText = 'body { color: white }';
+    expect(addHoverClass(cssText)).to.equal(cssText);
+  });
+
+  it('can add hover class to css text', () => {
+    const cssText = '.a:hover { color: white }';
+    expect(addHoverClass(cssText)).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)).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)).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)).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)).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)).to.equal(cssText);
+  });
+
+  it('benchmark', () => {
+    const cssText = fs.readFileSync(
+      path.resolve(__dirname, './css/benchmark.css'),
+      'utf8',
+    );
+    const start = process.hrtime();
+    addHoverClass(cssText);
+    const end = process.hrtime(start);
+    const duration = end[0] * 1_000 + end[1] / 1_000_000;
+    expect(duration).to.below(100);
+  });
+});