mirror of
https://github.com/oven-sh/bun
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67 lines
2.3 KiB
JavaScript
67 lines
2.3 KiB
JavaScript
//#FILE: test-fs-write-sync.js
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//#SHA1: 4ae5fa7550eefe258b9c1de798f4a4092e9d15d1
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//-----------------
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// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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"use strict";
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const fs = require("fs");
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const path = require("path");
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const os = require("os");
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const filename = path.join(os.tmpdir(), "write.txt");
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beforeEach(() => {
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try {
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fs.unlinkSync(filename);
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} catch (err) {
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// Ignore errors if file doesn't exist
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}
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});
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test("fs.writeSync with various parameter combinations", () => {
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const parameters = [Buffer.from("bár"), 0, Buffer.byteLength("bár")];
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// The first time fs.writeSync is called with all parameters provided.
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// After that, each pop in the cycle removes the final parameter. So:
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// - The 2nd time fs.writeSync with a buffer, without the length parameter.
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// - The 3rd time fs.writeSync with a buffer, without the offset and length
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// parameters.
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while (parameters.length > 0) {
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const fd = fs.openSync(filename, "w");
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let written = fs.writeSync(fd, "");
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expect(written).toBe(0);
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fs.writeSync(fd, "foo");
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written = fs.writeSync(fd, ...parameters);
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expect(written).toBeGreaterThan(3);
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fs.closeSync(fd);
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expect(fs.readFileSync(filename, "utf-8")).toBe("foobár");
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parameters.pop();
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}
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});
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//<#END_FILE: test-fs-write-sync.js
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