811b43c215The API is now available to user-land run-time snapshots. So update the example. This also makes the intention of the examples a bit clearer and test it in our test suite. PR-URL: https://github.com/nodejs/node/pull/47468 Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
67 lines
1.8 KiB
JavaScript
67 lines
1.8 KiB
JavaScript
'use strict';
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// This tests snapshot JS API using the example in the docs.
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require('../common');
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const assert = require('assert');
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const { spawnSync } = require('child_process');
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const tmpdir = require('../common/tmpdir');
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const fixtures = require('../common/fixtures');
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const path = require('path');
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const fs = require('fs');
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const v8 = require('v8');
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// By default it should be false. We'll test that it's true in snapshot
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// building mode in the fixture.
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assert(!v8.startupSnapshot.isBuildingSnapshot());
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tmpdir.refresh();
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const blobPath = path.join(tmpdir.path, 'snapshot.blob');
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const entry = fixtures.path('snapshot', 'v8-startup-snapshot-api.js');
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{
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for (const book of [
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'book1.en_US.txt',
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'book1.es_ES.txt',
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'book2.zh_CN.txt',
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]) {
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const content = `This is ${book}`;
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fs.writeFileSync(path.join(tmpdir.path, book), content, 'utf8');
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}
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fs.copyFileSync(entry, path.join(tmpdir.path, 'entry.js'));
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const child = spawnSync(process.execPath, [
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'--snapshot-blob',
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blobPath,
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'--build-snapshot',
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'entry.js',
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], {
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cwd: tmpdir.path
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});
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if (child.status !== 0) {
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console.log(child.stderr.toString());
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console.log(child.stdout.toString());
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assert.strictEqual(child.status, 0);
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}
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const stats = fs.statSync(path.join(tmpdir.path, 'snapshot.blob'));
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assert(stats.isFile());
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}
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{
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const child = spawnSync(process.execPath, [
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'--snapshot-blob',
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blobPath,
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'book1',
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], {
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cwd: tmpdir.path,
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env: {
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...process.env,
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BOOK_LANG: 'en_US',
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}
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});
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const stdout = child.stdout.toString().trim();
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const stderr = child.stderr.toString().trim();
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assert.strictEqual(stderr, 'Reading book1.en_US.txt');
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assert.strictEqual(stdout, 'This is book1.en_US.txt');
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assert.strictEqual(child.status, 0);
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}
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