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'use strict';
const common = require('../common');
const bench = common.createBenchmark(main, {
n: [1e6],
operation: ['get', 'set', 'enumerate', 'query', 'delete']
});
function main({ n, operation }) {
switch (operation) {
case 'get':
bench.start();
for (let i = 0; i < n; i++) {
process.env.PATH;
}
bench.end(n);
break;
case 'set':
bench.start();
for (let i = 0; i < n; i++) {
process.env.DUMMY = 'hello, world';
}
bench.end(n);
break;
case 'enumerate':
// First, normalize process.env so that benchmark results are comparable.
for (const key of Object.keys(process.env))
delete process.env[key];
for (let i = 0; i < 64; i++)
process.env[Math.random()] = Math.random();
n /= 10; // Enumeration is comparatively heavy.
bench.start();
for (let i = 0; i < n; i++) {
// Access every item in object to process values.
Object.keys(process.env);
}
bench.end(n);
break;
case 'query':
bench.start();
for (let i = 0; i < n; i++) {
'PATH' in process.env;
}
bench.end(n);
break;
case 'delete':
bench.start();
for (let i = 0; i < n; i++) {
delete process.env.DUMMY;
}
bench.end(n);
break;
}
}