130 lines
3.8 KiB
JavaScript
130 lines
3.8 KiB
JavaScript
var util = require('../lib/test-utils.js');
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var expect = require('chai').expect;
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describe('fs.appendFile', function() {
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beforeEach(function(done) {
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util.setup(function() {
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var fs = util.fs();
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fs.writeFile('/myfile', "This is a file.", { encoding: 'utf8' }, function(error) {
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if(error) throw error;
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done();
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});
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});
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});
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afterEach(util.cleanup);
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it('should be a function', function() {
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var fs = util.fs();
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expect(fs.appendFile).to.be.a('function');
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});
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it('should append a utf8 file without specifying utf8 in appendFile', function(done) {
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var fs = util.fs();
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var contents = "This is a file.";
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var more = " Appended.";
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fs.appendFile('/myfile', more, function(error) {
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if(error) throw error;
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fs.readFile('/myfile', 'utf8', function(error, data) {
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expect(error).not.to.exist;
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expect(data).to.equal(contents + more);
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done();
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});
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});
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});
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it('should append a utf8 file with "utf8" option to appendFile', function(done) {
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var fs = util.fs();
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var contents = "This is a file.";
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var more = " Appended.";
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fs.appendFile('/myfile', more, 'utf8', function(error) {
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if(error) throw error;
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fs.readFile('/myfile', 'utf8', function(error, data) {
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expect(error).not.to.exist;
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expect(data).to.equal(contents + more);
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done();
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});
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});
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});
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it('should append a utf8 file with {encoding: "utf8"} option to appendFile', function(done) {
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var fs = util.fs();
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var contents = "This is a file.";
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var more = " Appended.";
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fs.appendFile('/myfile', more, { encoding: 'utf8' }, function(error) {
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if(error) throw error;
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fs.readFile('/myfile', { encoding: 'utf8' }, function(error, data) {
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expect(error).not.to.exist;
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expect(data).to.equal(contents + more);
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done();
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});
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});
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});
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it('should append a binary file', function(done) {
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var fs = util.fs();
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// String and utf8 binary encoded versions of the same thing:
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var contents = "This is a file.";
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var binary = new Buffer([84, 104, 105, 115, 32, 105, 115, 32, 97, 32, 102, 105, 108, 101, 46]);
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var more = " Appended.";
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var binary2 = new Buffer([32, 65, 112, 112, 101, 110, 100, 101, 100, 46]);
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var binary3 = new Buffer([84, 104, 105, 115, 32, 105, 115, 32, 97, 32, 102, 105, 108, 101, 46,
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32, 65, 112, 112, 101, 110, 100, 101, 100, 46]);
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fs.writeFile('/mybinaryfile', binary, function(error) {
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if(error) throw error;
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fs.appendFile('/mybinaryfile', binary2, function(error) {
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if(error) throw error;
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fs.readFile('/mybinaryfile', 'ascii', function(error, data) {
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expect(error).not.to.exist;
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expect(data).to.deep.equal(binary3);
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done();
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});
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});
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});
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});
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it('should follow symbolic links', function(done) {
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var fs = util.fs();
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var contents = "This is a file.";
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var more = " Appended.";
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fs.symlink('/myfile', '/myFileLink', function (error) {
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if (error) throw error;
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fs.appendFile('/myFileLink', more, 'utf8', function (error) {
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if (error) throw error;
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fs.readFile('/myFileLink', 'utf8', function(error, data) {
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expect(error).not.to.exist;
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expect(data).to.equal(contents + more);
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done();
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});
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});
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});
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});
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it('should work when file does not exist, and create the file', function(done) {
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var fs = util.fs();
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var contents = "This is a file.";
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fs.appendFile('/newfile', contents, { encoding: 'utf8' }, function(error) {
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expect(error).not.to.exist;
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fs.readFile('/newfile', 'utf8', function(err, data) {
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if(err) throw err;
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expect(data).to.equal(contents);
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done();
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});
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});
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});
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});
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