The Tor Browser / file comparison
comparison: toolkit/components/osfile/tests/xpcshell/test_osfile_async_bytes.js
toolkit/components/osfile/tests/xpcshell/test_osfile_async_bytes.js
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:4bf195901408 |
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| 1 "use strict"; | |
| 2 | |
| 3 Components.utils.import("resource://gre/modules/osfile.jsm"); | |
| 4 Components.utils.import("resource://gre/modules/Task.jsm"); | |
| 5 | |
| 6 function run_test() { | |
| 7 do_test_pending(); | |
| 8 run_next_test(); | |
| 9 } | |
| 10 | |
| 11 /** | |
| 12 * Test to ensure that {bytes:} in options to |readTo| and |write| are correctly | |
| 13 * preserved. | |
| 14 */ | |
| 15 add_task(function* test_bytes() { | |
| 16 let path = OS.Path.join(OS.Constants.Path.tmpDir, | |
| 17 "test_osfile_async_bytes.tmp"); | |
| 18 let file = yield OS.File.open(path, {trunc: true, read: true, write: true}); | |
| 19 try { | |
| 20 try { | |
| 21 // 1. Test write, by supplying {bytes:} options smaller than the actual | |
| 22 // buffer. | |
| 23 yield file.write(new Uint8Array(2048), {bytes: 1024}); | |
| 24 do_check_eq((yield file.stat()).size, 1024); | |
| 25 | |
| 26 // 2. Test same for |readTo|. | |
| 27 yield file.setPosition(0, OS.File.POS_START); | |
| 28 let read = yield file.readTo(new Uint8Array(1024), {bytes: 512}); | |
| 29 do_check_eq(read, 512); | |
| 30 | |
| 31 // 3. Test that passing nullish values for |options| still works. | |
| 32 yield file.setPosition(0, OS.File.POS_END); | |
| 33 yield file.write(new Uint8Array(1024), null); | |
| 34 yield file.write(new Uint8Array(1024), undefined); | |
| 35 do_check_eq((yield file.stat()).size, 3072); | |
| 36 } finally { | |
| 37 yield file.close(); | |
| 38 } | |
| 39 } finally { | |
| 40 yield OS.File.remove(path); | |
| 41 } | |
| 42 }); | |
| 43 | |
| 44 add_task(do_test_finished); |
