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114 lines
3.4 KiB
JavaScript
114 lines
3.4 KiB
JavaScript
var common = require('../common');
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var assert = require('assert');
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var fs = require('fs');
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var join = require('path').join;
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var filename = join(common.tmpDir, 'append.txt');
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common.error('appending to ' + filename);
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var currentFileData = 'ABCD';
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var n = 220;
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var s = '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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var ncallbacks = 0;
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// test that empty file will be created and have content added
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fs.appendFile(filename, s, function(e) {
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if (e) throw e;
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ncallbacks++;
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common.error('appended to file');
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fs.readFile(filename, function(e, buffer) {
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if (e) throw e;
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common.error('file read');
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ncallbacks++;
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assert.equal(Buffer.byteLength(s), buffer.length);
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});
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});
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// test that appends data to a non empty file
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var filename2 = join(common.tmpDir, 'append2.txt');
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fs.writeFileSync(filename2, currentFileData);
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fs.appendFile(filename2, s, function(e) {
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if (e) throw e;
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ncallbacks++;
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common.error('appended to file2');
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fs.readFile(filename2, function(e, buffer) {
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if (e) throw e;
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common.error('file2 read');
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ncallbacks++;
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assert.equal(Buffer.byteLength(s) + currentFileData.length, buffer.length);
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});
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});
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// test that appendFile accepts buffers
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var filename3 = join(common.tmpDir, 'append3.txt');
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fs.writeFileSync(filename3, currentFileData);
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var buf = new Buffer(s, 'utf8');
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common.error('appending to ' + filename3);
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fs.appendFile(filename3, buf, function(e) {
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if (e) throw e;
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ncallbacks++;
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common.error('appended to file3');
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fs.readFile(filename3, function(e, buffer) {
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if (e) throw e;
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common.error('file3 read');
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ncallbacks++;
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assert.equal(buf.length + currentFileData.length, buffer.length);
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});
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});
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// test that appendFile accepts numbers.
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var filename4 = join(common.tmpDir, 'append4.txt');
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fs.writeFileSync(filename4, currentFileData);
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common.error('appending to ' + filename4);
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var m = 0600;
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fs.appendFile(filename4, n, { mode: m }, function(e) {
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if (e) throw e;
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ncallbacks++;
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common.error('appended to file4');
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// windows permissions aren't unix
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if (process.platform !== 'win32') {
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var st = fs.statSync(filename4);
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assert.equal(st.mode & 0700, m);
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}
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fs.readFile(filename4, function(e, buffer) {
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if (e) throw e;
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common.error('file4 read');
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ncallbacks++;
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assert.equal(Buffer.byteLength('' + n) + currentFileData.length,
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buffer.length);
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});
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});
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process.on('exit', function() {
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common.error('done');
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assert.equal(8, ncallbacks);
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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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});
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