define(["Filer"], function(Filer) { describe('fs.read', function() { beforeEach(function() { this.db_name = mk_db_name(); this.fs = new Filer.FileSystem({ name: this.db_name, flags: 'FORMAT' }); }); afterEach(function() { indexedDB.deleteDatabase(this.db_name); delete this.fs; }); it('should be a function', function() { expect(typeof this.fs.read).toEqual('function'); }); it('should read data from a file', function() { var complete = false; var _error, _result; var that = this; var wbuffer = new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8]); var rbuffer = new Uint8Array(wbuffer.length); that.fs.open('/myfile', 'w+', function(error, result) { if(error) throw error; var fd = result; that.fs.write(fd, wbuffer, 0, wbuffer.length, 0, function(error, result) { if(error) throw error; that.fs.read(fd, rbuffer, 0, rbuffer.length, 0, function(error, result) { _error = error; _result = result; complete = true; }); }); }); waitsFor(function() { return complete; }, 'test to complete', DEFAULT_TIMEOUT); runs(function() { expect(_error).toEqual(null); expect(_result).toEqual(rbuffer.length); expect(typed_array_equal(wbuffer, rbuffer)).toEqual(true); }); }); it('should update the current file position', function() { var complete = false; var _error, _result; var that = this; var wbuffer = new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8]); var rbuffer = new Uint8Array(wbuffer.length); _result = 0; that.fs.open('/myfile', 'w+', function(error, result) { if(error) throw error; var fd = result; that.fs.write(fd, wbuffer, 0, wbuffer.length, 0, function(error, result) { if(error) throw error; that.fs.read(fd, rbuffer, 0, rbuffer.length / 2, undefined, function(error, result) { if(error) throw error; _result += result; that.fs.read(fd, rbuffer, rbuffer.length / 2, rbuffer.length, undefined, function(error, result) { if(error) throw error; _result += result; complete = true; }); }); }); }); waitsFor(function() { return complete; }, 'test to complete', DEFAULT_TIMEOUT); runs(function() { expect(_error).toEqual(null); expect(_result).toEqual(rbuffer.length); expect(typed_array_equal(wbuffer.buffer, rbuffer.buffer)).toEqual(true); }); }); }); });