gecko/netwerk/test/unit/test_bug654926.js
Michal Novotny 6735dbcad7 Bug 737615: Replace usage of openCacheEntry with asyncOpenCacheEntry in Necko unit tests, r=bsmith
--HG--
extra : rebase_source : 626a90178480b47f24956a86914fdc3e76cbd20b
2012-06-12 14:23:32 -07:00

99 lines
2.0 KiB
JavaScript

const Cc = Components.classes;
const Ci = Components.interfaces;
const Cr = Components.results;
var _PSvc;
function get_pref_service() {
if (_PSvc)
return _PSvc;
return _PSvc = Cc["@mozilla.org/preferences-service;1"].
getService(Ci.nsIPrefBranch);
}
function gen_1MiB()
{
var i;
var data="x";
for (i=0 ; i < 20 ; i++)
data+=data;
return data;
}
function write_and_check(str, data, len)
{
var written = str.write(data, len);
if (written != len) {
do_throw("str.write has not written all data!\n" +
" Expected: " + len + "\n" +
" Actual: " + written + "\n");
}
}
function write_datafile(status, entry)
{
do_check_eq(status, Cr.NS_OK);
var os = entry.openOutputStream(0);
var data = gen_1MiB();
// max size in MB
var max_size = get_pref_service().
getIntPref("browser.cache.disk.max_entry_size") / 1024;
// write larger entry than is allowed
var i;
for (i=0 ; i<(max_size+1) ; i++)
write_and_check(os, data, data.length);
os.close();
entry.close();
// append to entry
asyncOpenCacheEntry("data",
"HTTP",
Ci.nsICache.STORE_ON_DISK,
Ci.nsICache.ACCESS_READ_WRITE,
append_datafile);
}
function append_datafile(status, entry)
{
do_check_eq(status, Cr.NS_OK);
var os = entry.openOutputStream(entry.dataSize);
var data = gen_1MiB();
// append 1MiB
try {
write_and_check(os, data, data.length);
do_throw();
}
catch (ex) { }
// closing the ostream should fail in this case
try {
os.close();
do_throw();
}
catch (ex) { }
entry.close();
do_test_finished();
}
function run_test() {
do_get_profile();
// clear the cache
evict_cache_entries();
// force to write file bigger than 5MiB
asyncOpenCacheEntry("data",
"HTTP",
Ci.nsICache.STORE_ON_DISK_AS_FILE,
Ci.nsICache.ACCESS_WRITE,
write_datafile);
do_test_pending();
}