The Tor Browser / file comparison
comparison: toolkit/components/osfile/tests/xpcshell/test_osfile_async_copy.js
toolkit/components/osfile/tests/xpcshell/test_osfile_async_copy.js
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:e27e029beead |
|---|---|
| 1 "use strict"; | |
| 2 | |
| 3 Components.utils.import("resource://gre/modules/osfile.jsm"); | |
| 4 Components.utils.import("resource://gre/modules/FileUtils.jsm"); | |
| 5 Components.utils.import("resource://gre/modules/NetUtil.jsm"); | |
| 6 Components.utils.import("resource://gre/modules/Promise.jsm"); | |
| 7 Components.utils.import("resource://gre/modules/Task.jsm"); | |
| 8 | |
| 9 function run_test() { | |
| 10 do_test_pending(); | |
| 11 run_next_test(); | |
| 12 } | |
| 13 | |
| 14 /** | |
| 15 * A file that we know exists and that can be used for reading. | |
| 16 */ | |
| 17 let EXISTING_FILE = "test_osfile_async_copy.js"; | |
| 18 | |
| 19 /** | |
| 20 * Fetch asynchronously the contents of a file using xpcom. | |
| 21 * | |
| 22 * Used for comparing xpcom-based results to os.file-based results. | |
| 23 * | |
| 24 * @param {string} path The _absolute_ path to the file. | |
| 25 * @return {promise} | |
| 26 * @resolves {string} The contents of the file. | |
| 27 */ | |
| 28 let reference_fetch_file = function reference_fetch_file(path) { | |
| 29 let promise = Promise.defer(); | |
| 30 let file = new FileUtils.File(path); | |
| 31 NetUtil.asyncFetch(file, | |
| 32 function(stream, status) { | |
| 33 if (!Components.isSuccessCode(status)) { | |
| 34 promise.reject(status); | |
| 35 return; | |
| 36 } | |
| 37 let result, reject; | |
| 38 try { | |
| 39 result = NetUtil.readInputStreamToString(stream, stream.available()); | |
| 40 } catch (x) { | |
| 41 reject = x; | |
| 42 } | |
| 43 stream.close(); | |
| 44 if (reject) { | |
| 45 promise.reject(reject); | |
| 46 } else { | |
| 47 promise.resolve(result); | |
| 48 } | |
| 49 }); | |
| 50 return promise.promise; | |
| 51 }; | |
| 52 | |
| 53 /** | |
| 54 * Compare asynchronously the contents two files using xpcom. | |
| 55 * | |
| 56 * Used for comparing xpcom-based results to os.file-based results. | |
| 57 * | |
| 58 * @param {string} a The _absolute_ path to the first file. | |
| 59 * @param {string} b The _absolute_ path to the second file. | |
| 60 * | |
| 61 * @resolves {null} | |
| 62 */ | |
| 63 let reference_compare_files = function reference_compare_files(a, b) { | |
| 64 let a_contents = yield reference_fetch_file(a); | |
| 65 let b_contents = yield reference_fetch_file(b); | |
| 66 // Not using do_check_eq to avoid dumping the whole file to the log. | |
| 67 // It is OK to === compare here, as both variables contain a string. | |
| 68 do_check_true(a_contents === b_contents); | |
| 69 }; | |
| 70 | |
| 71 /** | |
| 72 * Test to ensure that OS.File.copy works. | |
| 73 */ | |
| 74 function test_copymove(options = {}) { | |
| 75 let source = OS.Path.join((yield OS.File.getCurrentDirectory()), | |
| 76 EXISTING_FILE); | |
| 77 let dest = OS.Path.join(OS.Constants.Path.tmpDir, | |
| 78 "test_osfile_async_copy_dest.tmp"); | |
| 79 let dest2 = OS.Path.join(OS.Constants.Path.tmpDir, | |
| 80 "test_osfile_async_copy_dest2.tmp"); | |
| 81 try { | |
| 82 // 1. Test copy. | |
| 83 yield OS.File.copy(source, dest, options); | |
| 84 yield reference_compare_files(source, dest); | |
| 85 // 2. Test subsequent move. | |
| 86 yield OS.File.move(dest, dest2); | |
| 87 yield reference_compare_files(source, dest2); | |
| 88 // 3. Check that the moved file was really moved. | |
| 89 do_check_eq((yield OS.File.exists(dest)), false); | |
| 90 } finally { | |
| 91 try { | |
| 92 yield OS.File.remove(dest); | |
| 93 } catch (ex if ex.becauseNoSuchFile) { | |
| 94 // ignore | |
| 95 } | |
| 96 try { | |
| 97 yield OS.File.remove(dest2); | |
| 98 } catch (ex if ex.becauseNoSuchFile) { | |
| 99 // ignore | |
| 100 } | |
| 101 } | |
| 102 } | |
| 103 | |
| 104 // Regular copy test. | |
| 105 add_task(test_copymove); | |
| 106 // Userland copy test. | |
| 107 add_task(test_copymove.bind(null, {unixUserland: true})); | |
| 108 | |
| 109 add_task(do_test_finished); |
