| b69ab31 | | | 1 | /** |
| b69ab31 | | | 2 | * Copyright (c) Meta Platforms, Inc. and affiliates. |
| b69ab31 | | | 3 | * |
| b69ab31 | | | 4 | * This source code is licensed under the MIT license found in the |
| b69ab31 | | | 5 | * LICENSE file in the root directory of this source tree. |
| b69ab31 | | | 6 | */ |
| b69ab31 | | | 7 | |
| b69ab31 | | | 8 | import {processTerminalLines} from '../terminalOutput'; |
| b69ab31 | | | 9 | |
| b69ab31 | | | 10 | describe('terminalOutput', () => { |
| b69ab31 | | | 11 | describe('handles \\r', () => { |
| b69ab31 | | | 12 | function lines(s: string): Array<string> { |
| b69ab31 | | | 13 | // lines from process output may be flushed at different times, not necessarily only at `\n` |
| b69ab31 | | | 14 | return s.split(/([\r\n])/); |
| b69ab31 | | | 15 | } |
| b69ab31 | | | 16 | it('handles normal lines', () => { |
| b69ab31 | | | 17 | expect(processTerminalLines(lines('foo\nbar\nbaz'))).toEqual(['foo', 'bar', 'baz']); |
| b69ab31 | | | 18 | expect(processTerminalLines(lines('foo\nbar\nbaz\n'))).toEqual(['foo', 'bar', 'baz']); |
| b69ab31 | | | 19 | }); |
| b69ab31 | | | 20 | |
| b69ab31 | | | 21 | it('handles \\r\\n as line endings', () => { |
| b69ab31 | | | 22 | expect(processTerminalLines(lines('foo\r\nbar\r\nbaz\r\n'))).toEqual(['foo', 'bar', 'baz']); |
| b69ab31 | | | 23 | }); |
| b69ab31 | | | 24 | |
| b69ab31 | | | 25 | it('erases earlier parts of lines using \\r', () => { |
| b69ab31 | | | 26 | expect( |
| b69ab31 | | | 27 | processTerminalLines( |
| b69ab31 | | | 28 | lines('foo\nProgress 0%\rProgress 33%\rProgress 66%\rProgress 100%\nDone!\n'), |
| b69ab31 | | | 29 | ), |
| b69ab31 | | | 30 | ).toEqual(['foo', 'Progress 100%', 'Done!']); |
| b69ab31 | | | 31 | expect( |
| b69ab31 | | | 32 | processTerminalLines( |
| b69ab31 | | | 33 | lines('foo\nProgress 0%\rProgress 33%\rProgress 66%\rProgress 100%\r\nDone!\n'), |
| b69ab31 | | | 34 | ), |
| b69ab31 | | | 35 | ).toEqual(['foo', 'Progress 100%', 'Done!']); |
| b69ab31 | | | 36 | }); |
| b69ab31 | | | 37 | |
| b69ab31 | | | 38 | it('trailing \\r still shows progress', () => { |
| b69ab31 | | | 39 | expect(processTerminalLines(lines('foo\nProgress 0%\rProgress 33%\rProgress 66%\r'))).toEqual( |
| b69ab31 | | | 40 | ['foo', 'Progress 66%'], |
| b69ab31 | | | 41 | ); |
| b69ab31 | | | 42 | expect( |
| b69ab31 | | | 43 | processTerminalLines(lines('foo\nProgress 0%\rProgress 33%\rProgress 66%\r\n')), |
| b69ab31 | | | 44 | ).toEqual(['foo', 'Progress 66%']); |
| b69ab31 | | | 45 | }); |
| b69ab31 | | | 46 | }); |
| b69ab31 | | | 47 | }); |