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310f6033fc
Update var to const. PR-URL: https://github.com/nodejs/node/pull/10056 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
90 lines
3.2 KiB
JavaScript
90 lines
3.2 KiB
JavaScript
'use strict';
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const common = require('../common');
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const assert = require('assert');
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const join = require('path').join;
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const fs = require('fs');
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const currentFileData = 'ABCD';
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const m = 0o600;
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const num = 220;
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const data = '南越国是前203年至前111年存在于岭南地区的一个国家，国都位于番禺，疆域包括今天中国的广东、' +
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'广西两省区的大部份地区，福建省、湖南、贵州、云南的一小部份地区和越南的北部。' +
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'南越国是秦朝灭亡后，由南海郡尉赵佗于前203年起兵兼并桂林郡和象郡后建立。' +
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'前196年和前179年，南越国曾先后两次名义上臣属于西汉，成为西汉的“外臣”。前112年，' +
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'南越国末代君主赵建德与西汉发生战争，被汉武帝于前111年所灭。南越国共存在93年，' +
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'历经五代君主。南越国是岭南地区的第一个有记载的政权国家，采用封建制和郡县制并存的制度，' +
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'它的建立保证了秦末乱世岭南地区社会秩序的稳定，有效的改善了岭南地区落后的政治、##济现状。\n';
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common.refreshTmpDir();
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// test that empty file will be created and have content added
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const filename = join(common.tmpDir, 'append-sync.txt');
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fs.appendFileSync(filename, data);
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const fileData = fs.readFileSync(filename);
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assert.strictEqual(Buffer.byteLength(data), fileData.length);
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// test that appends data to a non empty file
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const filename2 = join(common.tmpDir, 'append-sync2.txt');
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fs.writeFileSync(filename2, currentFileData);
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fs.appendFileSync(filename2, data);
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const fileData2 = fs.readFileSync(filename2);
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assert.strictEqual(Buffer.byteLength(data) + currentFileData.length,
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fileData2.length);
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// test that appendFileSync accepts buffers
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const filename3 = join(common.tmpDir, 'append-sync3.txt');
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fs.writeFileSync(filename3, currentFileData);
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const buf = Buffer.from(data, 'utf8');
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fs.appendFileSync(filename3, buf);
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const fileData3 = fs.readFileSync(filename3);
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assert.strictEqual(buf.length + currentFileData.length, fileData3.length);
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// test that appendFile accepts numbers.
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const filename4 = join(common.tmpDir, 'append-sync4.txt');
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fs.writeFileSync(filename4, currentFileData, { mode: m });
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fs.appendFileSync(filename4, num, { mode: m });
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// windows permissions aren't unix
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if (!common.isWindows) {
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const st = fs.statSync(filename4);
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assert.strictEqual(st.mode & 0o700, m);
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}
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const fileData4 = fs.readFileSync(filename4);
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assert.strictEqual(Buffer.byteLength('' + num) + currentFileData.length,
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fileData4.length);
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// test that appendFile accepts file descriptors
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const filename5 = join(common.tmpDir, 'append-sync5.txt');
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fs.writeFileSync(filename5, currentFileData);
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const filename5fd = fs.openSync(filename5, 'a+', 0o600);
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fs.appendFileSync(filename5fd, data);
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fs.closeSync(filename5fd);
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const fileData5 = fs.readFileSync(filename5);
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assert.strictEqual(Buffer.byteLength(data) + currentFileData.length,
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fileData5.length);
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//exit logic for cleanup
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process.on('exit', function() {
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fs.unlinkSync(filename);
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fs.unlinkSync(filename2);
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fs.unlinkSync(filename3);
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fs.unlinkSync(filename4);
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fs.unlinkSync(filename5);
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});
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