43 lines
996 B
JavaScript
43 lines
996 B
JavaScript
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'use strict';
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require('../common');
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const {
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writeSync,
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writeFileSync,
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chmodSync,
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openSync,
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} = require('node:fs');
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const {
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throws,
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} = require('node:assert');
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// If a file's mode change after it is opened but before it is written to,
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// and the Object.prototype is manipulated to throw an error when the errno
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// or fd property is set or accessed, then the writeSync call would crash
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// the process. This test verifies that the error is properly propagated
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// instead.
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const tmpdir = require('../common/tmpdir');
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console.log(tmpdir.path);
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tmpdir.refresh();
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const path = `${tmpdir.path}/foo`;
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writeFileSync(path, '');
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// Do this after calling tmpdir.refresh() or that call will fail
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// before we get to the part we want to test.
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const error = new Error();
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Object.defineProperty(Object.prototype, 'errno', {
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__proto__: null,
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set() {
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throw error;
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},
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get() { return 0; }
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});
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const fd = openSync(path);
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chmodSync(path, 0o600);
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throws(() => writeSync(fd, 'test'), error);
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