gecko-dev/netwerk/test/unit/test_cache2-25-chunk-memory-limit.js

52 lines
1.5 KiB
JavaScript

Components.utils.import('resource://gre/modules/LoadContextInfo.jsm');
function gen_200k()
{
var i;
var data="0123456789ABCDEFGHIJLKMNO";
for (i=0; i<13; i++)
data+=data;
return data;
}
// Keep the output stream of the first entry in a global variable, so the
// CacheFile and its buffer isn't released before we write the data to the
// second entry.
var oStr;
function run_test()
{
do_get_profile();
if (!newCacheBackEndUsed()) {
do_check_true(true, "This test doesn't run when the old cache back end is used since the behavior is different");
return;
}
var prefBranch = Cc["@mozilla.org/preferences-service;1"].
getService(Ci.nsIPrefBranch);
// set max chunks memory so that only one full chunk fits within the limit
prefBranch.setIntPref("browser.cache.disk.max_chunks_memory_usage", 300);
asyncOpenCacheEntry("http://a/", "disk", Ci.nsICacheStorage.OPEN_NORMALLY, null,
function(status, entry) {
do_check_eq(status, Cr.NS_OK);
oStr = entry.openOutputStream(0);
var data = gen_200k();
do_check_eq(data.length, oStr.write(data, data.length));
asyncOpenCacheEntry("http://b/", "disk", Ci.nsICacheStorage.OPEN_NORMALLY, null,
function(status, entry) {
do_check_eq(status, Cr.NS_OK);
var oStr2 = entry.openOutputStream(0);
do_check_throws_nsIException(() => oStr2.write(data, data.length), 'NS_ERROR_OUT_OF_MEMORY');
finish_cache2_test();
}
);
}
);
do_test_pending();
}