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coverage.js
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coverage.js
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// This benchmark is meant to exercise a grab bag of code paths that would
// be expected to run slower under coverage.
'use strict';
const common = require('../common.js');
const bench = common.createBenchmark(main, {
n: [1e5],
});
const path = require('path');
const { rmSync } = require('fs');
const { spawnSync } = require('child_process');
const tmpdir = require('../../test/common/tmpdir');
const coverageDir = path.join(tmpdir.path, `./cov-${Date.now()}`);
function main({ n }) {
bench.start();
const result = spawnSync(process.execPath, [
require.resolve('../fixtures/coverage-many-branches'),
], {
env: {
NODE_V8_COVERAGE: coverageDir,
N: n,
...process.env,
},
});
bench.end(n);
rmSync(coverageDir, { recursive: true, force: true });
if (result.status !== 0) {
throw new Error(result.stderr.toString('utf8'));
}
}