Merge pull request #39 from unassert-js/benchmark-commits

twada · web-flow · commit 21c2a403219e · 2022-08-01T17:05:39.000+09:00
perf: Add Benchmark Suite to run benchmark continuously
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -9,7 +9,11 @@
 * Restructured codebase
   * [Migrate codebase to ESM and provide CJS/ESM dual package](https://github.com/unassert-js/unassert/pull/29)
   * [Replace default exported `unassert` with named exported `unassertAst`](https://github.com/unassert-js/unassert/pull/27)
+
+* Performance improvement
   * [Replace AST matcher with simpler and robust logic](https://github.com/unassert-js/unassert/pull/25)
+  * [Add Benchmark Suite to run benchmark continuously](https://github.com/unassert-js/unassert/pull/39)
+  * v2.0.0 is 20 times faster than v1.6.0
 
 * Newly supported syntaxes and features
   * [Support strict assertion mode newly exposed as 'node:assert/strict'](https://github.com/unassert-js/unassert/pull/31)
diff --git a/bench.mjs b/bench.mjs
@@ -0,0 +1,31 @@
+import { runBenchmark } from '@twada/benchmark-commits';
+import { parse } from 'acorn';
+import { readFileSync } from 'node:fs';
+import { join, dirname } from 'node:path';
+import { fileURLToPath, pathToFileURL } from 'node:url';
+import assert from 'node:assert/strict';
+const __dirname = dirname(fileURLToPath(import.meta.url));
+const targetCode = readFileSync(join(__dirname, 'node_modules', 'rimraf', 'rimraf.js'));
+
+const commits = [
+  'v1.6.0',
+  'master'
+];
+
+runBenchmark(commits, async ({ suite, spec, dir }) => {
+  let unassertAst;
+  if (spec.git === 'v1.6.0') {
+    unassertAst = (await import(pathToFileURL(`${dir}/index.js`))).default;
+  } else if (spec.git === 'master') {
+    unassertAst = (await import(pathToFileURL(`${dir}/src/index.mjs`))).unassertAst;
+  } else {
+    assert.fail('cannot be here');
+  }
+  return () => {
+    const ast = parse(targetCode, { ecmaVersion: '2022' });
+    const modifiedAst = unassertAst(ast);
+    assert(modifiedAst);
+  };
+}).then((suite) => {
+  console.log('FINISHED');
+});
diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -18,6 +18,7 @@
     "estraverse": "^5.0.0"
   },
   "devDependencies": {
+    "@twada/benchmark-commits": "^0.1.0",
     "acorn": "^8.0.0",
     "escodegen": "^2.0.0",
     "mocha": "^10.0.0",
