nodejs/test/sequential/test-single-executable-application-snapshot-and-code-cache.js

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'use strict';
require('../common');
const {
injectAndCodeSign,
skipIfSingleExecutableIsNotSupported,
} = require('../common/sea');
skipIfSingleExecutableIsNotSupported();
// This tests "useCodeCache" is ignored when "useSnapshot" is true.
const tmpdir = require('../common/tmpdir');
const { copyFileSync, writeFileSync, existsSync } = require('fs');
const { spawnSync } = require('child_process');
const { join } = require('path');
const assert = require('assert');
const configFile = join(tmpdir.path, 'sea-config.json');
const seaPrepBlob = join(tmpdir.path, 'sea-prep.blob');
const outputFile = join(tmpdir.path, process.platform === 'win32' ? 'sea.exe' : 'sea');
{
tmpdir.refresh();
const code = `
const {
setDeserializeMainFunction,
} = require('v8').startupSnapshot;
setDeserializeMainFunction(() => {
console.log('Hello from snapshot');
});
`;
writeFileSync(join(tmpdir.path, 'snapshot.js'), code, 'utf-8');
writeFileSync(configFile, `
{
"main": "snapshot.js",
"output": "sea-prep.blob",
"useSnapshot": true,
"useCodeCache": true
}
`);
let child = spawnSync(
process.execPath,
['--experimental-sea-config', 'sea-config.json'],
{
cwd: tmpdir.path
});
assert.match(
child.stderr.toString(),
/"useCodeCache" is redundant when "useSnapshot" is true/);
assert(existsSync(seaPrepBlob));
copyFileSync(process.execPath, outputFile);
injectAndCodeSign(outputFile, seaPrepBlob);
child = spawnSync(outputFile);
assert.strictEqual(child.stdout.toString().trim(), 'Hello from snapshot');
}