89 lines
1.8 KiB
JavaScript
89 lines
1.8 KiB
JavaScript
var _PSvc;
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function get_pref_service() {
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if (_PSvc)
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return _PSvc;
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return _PSvc = Cc["@mozilla.org/preferences-service;1"].
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getService(Ci.nsIPrefBranch);
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}
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function gen_1MiB()
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{
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var i;
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var data="x";
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for (i=0 ; i < 20 ; i++)
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data+=data;
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return data;
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}
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function write_and_check(str, data, len)
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{
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var written = str.write(data, len);
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if (written != len) {
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do_throw("str.write has not written all data!\n" +
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" Expected: " + len + "\n" +
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" Actual: " + written + "\n");
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}
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}
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function write_datafile(status, entry)
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{
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do_check_eq(status, Cr.NS_OK);
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var os = entry.openOutputStream(0);
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var data = gen_1MiB();
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// write 2MiB
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var i;
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for (i=0 ; i<2 ; i++)
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write_and_check(os, data, data.length);
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os.close();
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entry.close();
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// now change max_entry_size so that the existing entry is too big
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get_pref_service().setIntPref("browser.cache.disk.max_entry_size", 1024);
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// append to entry
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asyncOpenCacheEntry("http://data/",
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"disk", Ci.nsICacheStorage.OPEN_NORMALLY, null,
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append_datafile);
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}
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function append_datafile(status, entry)
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{
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do_check_eq(status, Cr.NS_OK);
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var os = entry.openOutputStream(entry.dataSize);
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var data = gen_1MiB();
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// append 1MiB
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try {
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write_and_check(os, data, data.length);
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do_throw();
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}
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catch (ex) { }
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// closing the ostream should fail in this case
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try {
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os.close();
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do_throw();
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}
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catch (ex) { }
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entry.close();
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do_test_finished();
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}
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function run_test() {
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do_get_profile();
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// clear the cache
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evict_cache_entries();
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asyncOpenCacheEntry("http://data/",
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"disk", Ci.nsICacheStorage.OPEN_NORMALLY, null,
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write_datafile);
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do_test_pending();
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}
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