postcss-parser-tests

import cases from 'postcss-parser-tests'; // Assuming you have a CSS parser function called `parse` and a test runner like Mocha/Jest. // This example uses a simplified `parse` and `expect` for demonstration. const mockParse = (css: string, options?: { from: string }) => { // In a real scenario, this would be your actual CSS parser // For example, from 'postcss': return postcss.parse(css, options); console.log(`Parsing: ${options?.from || 'unknown'}`); return { type: 'root', nodes: [], toJSON: () => ({ /* simplified AST */ }) }; }; const mockExpect = (value: any) => ({ toEqual: (expected: any) => { console.log(`Comparing parsed output with ideal AST... ${JSON.stringify(value) === JSON.stringify(expected) ? 'Success' : 'Failure'}`); // In a real test, this would throw an error on mismatch } }); describe('PostCSS Parser Tests', () => { cases.each((name, css, ideal) => { it('parses ' + name, () => { const root = mockParse(css, { from: name }); const json = cases.jsonify(root); mockExpect(json).toEqual(ideal); }); }); // Example of integration tests with a mock parser it('runs integration tests', async () => { const results = []; await cases.real(css => { // Your parser should take CSS string and return a PostCSS Result object (or similar). // For this example, we just return the input CSS. results.push({ input: css, output: css }); return { css: css, toResult: () => ({ css: css, map: { annotation: false } }) }; }); console.log(`Completed ${results.length} integration tests.`); mockExpect(results.length).toEqual(20); // Example assertion, actual count varies. }); });