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test-snapshot-basic.js
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test-snapshot-basic.js
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'use strict';
// This tests that user land snapshots works when the instance restored from
// the snapshot is launched with --help, --check
require('../common');
const assert = require('assert');
const tmpdir = require('../common/tmpdir');
const fixtures = require('../common/fixtures');
const {
spawnSyncAndAssert,
spawnSyncAndExit,
spawnSyncAndExitWithoutError,
} = require('../common/child_process');
const fs = require('fs');
tmpdir.refresh();
let snapshotScript = 'node:embedded_snapshot_main';
if (!process.config.variables.node_use_node_snapshot) {
// Check that Node.js built without an embedded snapshot
// exits with 9 when node:embedded_snapshot_main is specified
// as snapshot entry point.
spawnSyncAndExit(process.execPath, [
'--build-snapshot',
snapshotScript,
], {
cwd: tmpdir.path
}, {
status: 9,
signal: null,
stderr: /Node\.js was built without embedded snapshot/
});
snapshotScript = fixtures.path('empty.js');
}
// By default, the snapshot blob path is cwd/snapshot.blob.
{
// Create the snapshot.
spawnSyncAndExitWithoutError(process.execPath, [
'--build-snapshot',
snapshotScript,
], {
cwd: tmpdir.path
});
const stats = fs.statSync(tmpdir.resolve('snapshot.blob'));
assert(stats.isFile());
}
tmpdir.refresh();
const blobPath = tmpdir.resolve('my-snapshot.blob');
{
// Create the snapshot.
spawnSyncAndExitWithoutError(process.execPath, [
'--snapshot-blob',
blobPath,
'--build-snapshot',
snapshotScript,
], {
cwd: tmpdir.path
});
const stats = fs.statSync(blobPath);
assert(stats.isFile());
}
{
// Check --help.
spawnSyncAndAssert(process.execPath, [
'--snapshot-blob',
blobPath,
'--help',
], {
cwd: tmpdir.path
}, {
stdout: /--help/
});
}
{
// Check -c.
spawnSyncAndAssert(process.execPath, [
'--snapshot-blob',
blobPath,
'-c',
fixtures.path('snapshot', 'marked.js'),
], {
cwd: tmpdir.path
}, {
stderr: '',
stdout: '',
trim: true
});
}