The Tor Browser / file comparison
comparison: netwerk/test/unit/test_bug651100.js
netwerk/test/unit/test_bug651100.js
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:36b69780df7a |
|---|---|
| 1 function gen_1MiB() | |
| 2 { | |
| 3 var i; | |
| 4 var data="x"; | |
| 5 for (i=0 ; i < 20 ; i++) | |
| 6 data+=data; | |
| 7 return data; | |
| 8 } | |
| 9 | |
| 10 function write_and_check(str, data, len) | |
| 11 { | |
| 12 var written = str.write(data, len); | |
| 13 if (written != len) { | |
| 14 do_throw("str.write has not written all data!\n" + | |
| 15 " Expected: " + len + "\n" + | |
| 16 " Actual: " + written + "\n"); | |
| 17 } | |
| 18 } | |
| 19 | |
| 20 function write_big_datafile(status, entry) | |
| 21 { | |
| 22 do_check_eq(status, Cr.NS_OK); | |
| 23 var os = entry.openOutputStream(0); | |
| 24 var data = gen_1MiB(); | |
| 25 | |
| 26 // write 65MiB | |
| 27 var i; | |
| 28 for (i=0 ; i<65 ; i++) | |
| 29 write_and_check(os, data, data.length); | |
| 30 | |
| 31 // another write should fail and the entry will be doomed | |
| 32 try { | |
| 33 write_and_check(os, data, data.length); | |
| 34 do_throw("write should fail"); | |
| 35 } catch (e) {} | |
| 36 | |
| 37 os.close(); | |
| 38 entry.close(); | |
| 39 | |
| 40 // DoomEntry() is called while writing to the entry, but the data is really | |
| 41 // deleted (and the cache size updated) on the background thread when | |
| 42 // the entry is deactivated. We need to sync with the cache IO thread before | |
| 43 // we continue with the test. | |
| 44 syncWithCacheIOThread(run_test_2); | |
| 45 } | |
| 46 | |
| 47 function write_big_metafile(status, entry) | |
| 48 { | |
| 49 do_check_eq(status, Cr.NS_OK); | |
| 50 var os = entry.openOutputStream(0); | |
| 51 var data = gen_1MiB(); | |
| 52 | |
| 53 // > 64MiB | |
| 54 var i; | |
| 55 for (i=0 ; i<65 ; i++) | |
| 56 entry.setMetaDataElement("metadata_"+i, data); | |
| 57 | |
| 58 entry.metaDataReady(); | |
| 59 | |
| 60 os.close(); | |
| 61 entry.close(); | |
| 62 | |
| 63 // We don't check whether the cache is full while writing metadata. Also we | |
| 64 // write the metadata when closing the entry, so we need to write some data | |
| 65 // after closing this entry to invoke the cache cleanup. | |
| 66 asyncOpenCacheEntry("http://smalldata/", | |
| 67 "disk", Ci.nsICacheStorage.OPEN_TRUNCATE, null, | |
| 68 write_and_doom_small_datafile); | |
| 69 } | |
| 70 | |
| 71 function write_and_doom_small_datafile(status, entry) | |
| 72 { | |
| 73 do_check_eq(status, Cr.NS_OK); | |
| 74 var os = entry.openOutputStream(0); | |
| 75 var data = "0123456789"; | |
| 76 | |
| 77 write_and_check(os, data, data.length); | |
| 78 | |
| 79 os.close(); | |
| 80 entry.asyncDoom(null); | |
| 81 entry.close(); | |
| 82 syncWithCacheIOThread(run_test_3); | |
| 83 } | |
| 84 | |
| 85 function check_cache_size(cont) { | |
| 86 get_device_entry_count("disk", null, function(count, consumption) { | |
| 87 // Because the last entry we store is doomed using AsyncDoom and not Doom, it is still active | |
| 88 // during the visit processing, hence consumption is larger then 0 (one block is allocated). | |
| 89 // ...I really like all these small old-cache bugs, that will finally go away... :) | |
| 90 do_check_true(consumption <= 1024) | |
| 91 cont(); | |
| 92 }); | |
| 93 } | |
| 94 | |
| 95 function run_test() { | |
| 96 if (newCacheBackEndUsed()) { | |
| 97 // browser.cache.disk.* (limits mainly) tests | |
| 98 do_check_true(true, "This test doesn't run with the new cache backend, the test or the cache needs to be fixed"); | |
| 99 return; | |
| 100 } | |
| 101 | |
| 102 var prefBranch = Cc["@mozilla.org/preferences-service;1"]. | |
| 103 getService(Ci.nsIPrefBranch); | |
| 104 | |
| 105 // set max entry size bigger than 64MiB | |
| 106 prefBranch.setIntPref("browser.cache.disk.max_entry_size", 65*1024); | |
| 107 // disk cache capacity must be at least 8 times bigger | |
| 108 prefBranch.setIntPref("browser.cache.disk.capacity", 8*65*1024); | |
| 109 // disable smart size | |
| 110 prefBranch.setBoolPref("browser.cache.disk.smart_size.enabled", false); | |
| 111 | |
| 112 do_get_profile(); | |
| 113 | |
| 114 // clear the cache | |
| 115 evict_cache_entries(); | |
| 116 | |
| 117 // write an entry with data > 64MiB | |
| 118 asyncOpenCacheEntry("http://bigdata/", | |
| 119 "disk", Ci.nsICacheStorage.OPEN_TRUNCATE, null, | |
| 120 write_big_datafile); | |
| 121 | |
| 122 do_test_pending(); | |
| 123 } | |
| 124 | |
| 125 function run_test_2() | |
| 126 { | |
| 127 check_cache_size(run_test_2a); | |
| 128 } | |
| 129 | |
| 130 function run_test_2a() | |
| 131 { | |
| 132 var prefBranch = Cc["@mozilla.org/preferences-service;1"]. | |
| 133 getService(Ci.nsIPrefBranch); | |
| 134 | |
| 135 // set cache capacity lower than max entry size (see comment in | |
| 136 // write_big_metafile) | |
| 137 prefBranch.setIntPref("browser.cache.disk.capacity", 64*1024); | |
| 138 | |
| 139 // write an entry with metadata > 64MiB | |
| 140 asyncOpenCacheEntry("http://bigmetadata/", | |
| 141 "disk", Ci.nsICacheStorage.OPEN_TRUNCATE, null, | |
| 142 write_big_metafile); | |
| 143 } | |
| 144 | |
| 145 function run_test_3() | |
| 146 { | |
| 147 check_cache_size(do_test_finished); | |
| 148 } |
