| // Copyright 2022 The Pigweed Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| // use this file except in compliance with the License. You may obtain a copy of |
| // the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| // License for the specific language governing permissions and limitations under |
| // the License. |
| |
| /* eslint-env browser */ |
| import {PrintfDecoder} from './printf_decoder'; |
| |
| function argFromString(arg: string): Uint8Array { |
| const data = new TextEncoder().encode(arg); |
| return new Uint8Array([data.length, ...data]); |
| } |
| |
| function argFromStringBinary(arg: string): Uint8Array { |
| return new Uint8Array(arg.split('').map(ch => ch.charCodeAt(0))); |
| } |
| |
| function argsConcat(...args: Uint8Array[]): Uint8Array { |
| let data: number[] = []; |
| for (const index in args) { |
| const argData = args[index]; |
| data = data.concat([...argData]); |
| } |
| return new Uint8Array(data); |
| } |
| |
| describe('PrintfDecoder', () => { |
| let printfDecoder: PrintfDecoder; |
| |
| beforeEach(() => { |
| printfDecoder = new PrintfDecoder(); |
| }); |
| |
| it('formats string correctly', () => { |
| expect(printfDecoder.decode('Hello %s', argFromString('Computer'))).toEqual( |
| 'Hello Computer' |
| ); |
| expect( |
| printfDecoder.decode( |
| 'Hello %s and %s', |
| argsConcat(argFromString('Mac'), argFromString('PC')) |
| ) |
| ).toEqual('Hello Mac and PC'); |
| }); |
| |
| it('formats varint correctly', () => { |
| const arg = argFromStringBinary('\xff\xff\x03'); |
| expect(printfDecoder.decode('Number %d', arg)).toEqual('Number -32768'); |
| expect( |
| printfDecoder.decode('Numbers %u and %d', argsConcat(arg, arg)) |
| ).toEqual('Numbers 4294934528 and -32768'); |
| expect(printfDecoder.decode('Growth is %u%', arg)).toEqual( |
| 'Growth is 4294934528%' |
| ); |
| }); |
| |
| it('formats char correctly', () => { |
| expect( |
| printfDecoder.decode('Battery: 100%c', argFromStringBinary('\x4a')) |
| ).toEqual('Battery: 100%'); |
| expect( |
| printfDecoder.decode('Price: %c97.99', argFromStringBinary('\x48')) |
| ).toEqual('Price: $97.99'); |
| }); |
| |
| it('formats floats correctly', () => { |
| expect( |
| printfDecoder.decode('Value: %f', argFromStringBinary('\xdb\x0f\x49\x40')) |
| ).toEqual('Value: 3.1415927410125732'); |
| // TODO(asadmemon): Add support to decoder for this format: |
| // expect( |
| // printfDecoder.decode( |
| // 'Value: %0.5f', |
| // argFromStringBinary('\xdb\x0f\x49\x40') |
| // ) |
| // ).toEqual('Value: 3.14159'); |
| }); |
| }); |