89 lines
2.5 KiB
JavaScript
89 lines
2.5 KiB
JavaScript
var Filer = require('../../src');
|
|
var util = require('../lib/test-utils.js');
|
|
var expect = require('chai').expect;
|
|
|
|
describe('fs.read', function() {
|
|
beforeEach(util.setup);
|
|
afterEach(util.cleanup);
|
|
|
|
it('should be a function', function() {
|
|
var fs = util.fs();
|
|
expect(fs.read).to.be.a('function');
|
|
});
|
|
|
|
it('should read data from a file', function(done) {
|
|
var fs = util.fs();
|
|
var wbuffer = new Filer.Buffer([1, 2, 3, 4, 5, 6, 7, 8]);
|
|
var rbuffer = new Filer.Buffer(wbuffer.length);
|
|
rbuffer.fill(0);
|
|
|
|
fs.open('/myfile', 'w+', function(error, fd) {
|
|
if(error) throw error;
|
|
fs.write(fd, wbuffer, 0, wbuffer.length, 0, function(error, result) {
|
|
if(error) throw error;
|
|
|
|
fs.read(fd, rbuffer, 0, rbuffer.length, 0, function(error, result) {
|
|
expect(error).not.to.exist;
|
|
expect(result).to.equal(rbuffer.length);
|
|
expect(wbuffer).to.deep.equal(rbuffer);
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
});
|
|
|
|
it('should update the current file position', function(done) {
|
|
var fs = util.fs();
|
|
var wbuffer = new Filer.Buffer([1, 2, 3, 4, 5, 6, 7, 8]);
|
|
var rbuffer = new Filer.Buffer(wbuffer.length);
|
|
rbuffer.fill(0);
|
|
var _result = 0;
|
|
|
|
fs.open('/myfile', 'w+', function(error, fd) {
|
|
if(error) throw error;
|
|
|
|
fs.write(fd, wbuffer, 0, wbuffer.length, 0, function(error, result) {
|
|
if(error) throw error;
|
|
|
|
fs.read(fd, rbuffer, 0, rbuffer.length / 2, undefined, function(error, result) {
|
|
if(error) throw error;
|
|
|
|
_result += result;
|
|
fs.read(fd, rbuffer, rbuffer.length / 2, rbuffer.length, undefined, function(error, result) {
|
|
if(error) throw error;
|
|
_result += result;
|
|
expect(error).not.to.exist;
|
|
expect(_result).to.equal(rbuffer.length);
|
|
expect(wbuffer).to.deep.equal(rbuffer);
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
|
|
it('should fail to read a directory', function(done) {
|
|
var fs = util.fs();
|
|
var buf = new Filer.Buffer(20);
|
|
var buf2 = new Filer.Buffer(20);
|
|
buf.fill(0);
|
|
buf2.fill(0);
|
|
|
|
fs.mkdir('/mydir', function(error) {
|
|
if(error) throw err;
|
|
|
|
fs.open('/mydir', 'r', function(error, fd) {
|
|
if(error) throw error;
|
|
|
|
fs.read(fd, buf, 0, buf.length, 0, function(error, result) {
|
|
expect(error).to.exist;
|
|
expect(error.code).to.equal('EISDIR');
|
|
expect(result).to.equal(0);
|
|
expect(buf).to.deep.equal(buf2);
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|