a96256524cThis helps diffing snapshots when the reproducibility gets broken. PR-URL: https://github.com/nodejs/node/pull/61101 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
49 lines
1.1 KiB
JavaScript
49 lines
1.1 KiB
JavaScript
'use strict';
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const common = require('../common');
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const { spawnSyncAndAssert } = require('../common/child_process');
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const tmpdir = require('../common/tmpdir');
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const fs = require('fs');
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const assert = require('assert');
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common.skipIf32Bits();
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// When the test fails this helper can be modified to write outputs
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// differently and aid debugging.
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function log(line) {
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console.log(line);
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}
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function generateSnapshot() {
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tmpdir.refresh();
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spawnSyncAndAssert(
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process.execPath,
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[
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'--random_seed=42',
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'--predictable',
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'--build-snapshot',
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'node:generate_default_snapshot_source',
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],
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{
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env: { ...process.env, NODE_DEBUG_NATIVE: 'SNAPSHOT_SERDES' },
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cwd: tmpdir.path
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},
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{
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stderr(output) {
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const lines = output.split('\n');
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for (const line of lines) {
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if (line.startsWith('0x')) {
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log(line);
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}
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}
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},
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}
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);
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const outputPath = tmpdir.resolve('snapshot.cc');
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return fs.readFileSync(outputPath, 'utf-8').split('\n');
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}
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const source1 = generateSnapshot();
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const source2 = generateSnapshot();
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assert.deepStrictEqual(source1, source2);
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