var util = require('../lib/test-utils.js'); var expect = require('chai').expect; var constants = require('../../src/constants.js'); describe('fs.open', function() { beforeEach(util.setup); afterEach(util.cleanup); it('should be a function', function() { var fs = util.fs(); expect(fs.open).to.be.a('function'); }); it('should return an error if the parent path does not exist', function(done) { var fs = util.fs(); fs.open('/tmp/myfile', 'w+', function(error, result) { expect(error).to.exist; expect(error.code).to.equal('ENOENT'); expect(result).not.to.exist; done(); }); }); it('should return an error when flagged for read and the path does not exist', function(done) { var fs = util.fs(); fs.open('/myfile', 'r+', function(error, result) { expect(error).to.exist; expect(error.code).to.equal('ENOENT'); expect(result).not.to.exist; done(); }); }); it('should return an error when flagged for write and the path is a directory', function(done) { var fs = util.fs(); fs.mkdir('/tmp', function(error) { if(error) throw error; fs.open('/tmp', 'w', function(error, result) { expect(error).to.exist; expect(error.code).to.equal('EISDIR'); expect(result).not.to.exist; done(); }); }); }); it('should return an error when flagged for append and the path is a directory', function(done) { var fs = util.fs(); fs.mkdir('/tmp', function(error) { if(error) throw error; fs.open('/tmp', 'a', function(error, result) { expect(error).to.exist; expect(error.code).to.equal('EISDIR'); expect(result).not.to.exist; done(); }); }); }); it('should return a unique file descriptor', function(done) { var fs = util.fs(); var fd1; fs.open('/file1', 'w+', function(error, fd) { if(error) throw error; expect(error).not.to.exist; expect(fd).to.be.a('number'); fs.open('/file2', 'w+', function(error, fd) { if(error) throw error; expect(error).not.to.exist; expect(fd).to.be.a('number'); expect(fd).not.to.equal(fd1); done(); }); }); }); it('should return the argument value of the file descriptor index matching the value set by the first useable file descriptor constant', function(done) { var fs = util.fs(); var firstFD = constants.FIRST_DESCRIPTOR; fs.open('/file1', 'w+', function(error, fd) { if(error) throw error; expect(fd).to.equal(firstFD); done(); }); }); it('should create a new file when flagged for write', function(done) { var fs = util.fs(); fs.open('/myfile', 'w', function(error) { if(error) throw error; fs.stat('/myfile', function(error, result) { expect(error).not.to.exist; expect(result).to.exist; expect(result.isFile()).to.be.true; done(); }); }); }); it('should create a new file, when flagged for write, and set the mode to the passed value', function(done) { var fs = util.fs(); fs.open('/myfile', 'w', 0o777, function(error) { if(error) throw error; fs.stat('/myfile', function(error, result) { expect(error).not.to.exist; expect(result).to.exist; expect(result.mode).to.exist; expect(result.mode & 0o777).to.equal(0o777); done(); }); }); }); it('should create a new file, but no mode is passed, so the default value of 644 should be seen', function(done) { var fs = util.fs(); fs.open('/myfile', 'w', function(error) { if(error) throw error; fs.stat('/myfile', function(error, result) { expect(error).not.to.exist; expect(result).to.exist; expect(result.mode).to.exist; expect(result.mode & 0o644).to.equal(0o644); done(); }); }); }); /** * This test is currently correct per our code, but incorrect according to the spec. * When we fix https://github.com/filerjs/filer/issues/314 we'll have to update this. */ it('should error if an ofd\'s node goes away while open', function(done) { var fs = util.fs(); fs.writeFile('/myfile', 'data', function(error) { if(error) throw error; fs.open('/myfile', 'r', function(error, fd) { if(error) throw error; // Delete the file while it's still open fs.unlink('/myfile', function(error) { if(error) throw error; // This should fail now, since fd points to a bad node fs.fstat(fd, function(error, result) { expect(error).to.exist; expect(error.code).to.equal('EBADF'); expect(result).not.to.exist; fs.close(fd); done(); }); }); }); }); }); }); /** * fsPromise.open() Tests **/ describe('fsPromises.open', function() { beforeEach(util.setup); afterEach(util.cleanup); it('should return an error if the parent path does not exist', function() { var fsPromises = util.fs().promises; return fsPromises.open('/tmp/myfile', 'w+') .then(result => expect(result).not.to.exist) .catch(error => { expect(error).to.exist; expect(error.code).to.equal('ENOENT'); }); }); });