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+'use strict'; |
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+const common = require('../common'); |
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+ |
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+if (common.isWindows) |
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+common.skip('test not supported on Windows'); |
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+ |
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+const assert = require('assert'); |
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+ |
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+if (process.argv[2] === 'child') { |
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+const fs = require('fs'); |
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+ |
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+assert.strictEqual(process.listenerCount('SIGUSR2'), 1); |
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+process.kill(process.pid, 'SIGUSR2'); |
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+process.kill(process.pid, 'SIGUSR2'); |
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+ |
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+// Asynchronously wait for the snapshot. Use an async loop to be a bit more |
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+// robust in case platform or machine differences throw off the timing. |
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+(function validate() { |
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+const files = fs.readdirSync(process.cwd()); |
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+ |
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+if (files.length === 0) |
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+return setImmediate(validate); |
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+ |
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+assert.strictEqual(files.length, 2); |
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+ |
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+for (let i = 0; i < files.length; i++) { |
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+assert(/^Heap\..+\.heapsnapshot$/.test(files[i])); |
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+JSON.parse(fs.readFileSync(files[i])); |
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+} |
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+})(); |
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+} else { |
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+const { spawnSync } = require('child_process'); |
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+const tmpdir = require('../common/tmpdir'); |
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+ |
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+tmpdir.refresh(); |
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+const args = ['--heapsnapshot-signal', 'SIGUSR2', __filename, 'child']; |
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+const child = spawnSync(process.execPath, args, { cwd: tmpdir.path }); |
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+ |
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+assert.strictEqual(child.status, 0); |
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+assert.strictEqual(child.signal, null); |
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+} |