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'use strict'; const fs = require('fs'); const path = require('path'); const common = require('../common.js'); const { strictEqual } = require('assert'); const tmpdir = require('../../test/common/tmpdir'); const benchmarkDirectory = path.resolve(tmpdir.path, 'benchmark-esm-parse'); const bench = common.createBenchmark(main, { n: [1e2] }); async function main({ n }) { tmpdir.refresh(); fs.mkdirSync(benchmarkDirectory); let sampleSource = 'try {\n'; for (let i = 0; i < 1000; i++) { sampleSource += 'sample.js(() => file = /test/);\n'; } sampleSource += '} catch {}\nexports.p = 5;\n'; for (let i = 0; i < n; i++) { const sampleFile = path.join(benchmarkDirectory, `sample${i}.js`); fs.writeFileSync(sampleFile, sampleSource); } bench.start(); for (let i = 0; i < n; i++) { const sampleFile = path.join(benchmarkDirectory, `sample${i}.js`); const m = await import('file:' + sampleFile); strictEqual(m.p, 5); } bench.end(n); tmpdir.refresh(); }