The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/netwerk/test/unit/test_bug654926.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,94 @@
     1.4 +var _PSvc;
     1.5 +function get_pref_service() {
     1.6 +  if (_PSvc)
     1.7 +    return _PSvc;
     1.8 +
     1.9 +  return _PSvc = Cc["@mozilla.org/preferences-service;1"].
    1.10 +                 getService(Ci.nsIPrefBranch);
    1.11 +}
    1.12 +
    1.13 +function gen_1MiB()
    1.14 +{
    1.15 +  var i;
    1.16 +  var data="x";
    1.17 +  for (i=0 ; i < 20 ; i++)
    1.18 +    data+=data;
    1.19 +  return data;
    1.20 +}
    1.21 +
    1.22 +function write_and_check(str, data, len)
    1.23 +{
    1.24 +  var written = str.write(data, len);
    1.25 +  if (written != len) {
    1.26 +    do_throw("str.write has not written all data!\n" +
    1.27 +             "  Expected: " + len  + "\n" +
    1.28 +             "  Actual: " + written + "\n");
    1.29 +  }
    1.30 +}
    1.31 +
    1.32 +function write_datafile(status, entry)
    1.33 +{
    1.34 +  do_check_eq(status, Cr.NS_OK);
    1.35 +  var os = entry.openOutputStream(0);
    1.36 +  var data = gen_1MiB();
    1.37 +
    1.38 +  // write 2MiB
    1.39 +  var i;
    1.40 +  for (i=0 ; i<2 ; i++)
    1.41 +    write_and_check(os, data, data.length);
    1.42 +
    1.43 +  os.close();
    1.44 +  entry.close();
    1.45 +
    1.46 +  // now change max_entry_size so that the existing entry is too big
    1.47 +  get_pref_service().setIntPref("browser.cache.disk.max_entry_size", 1024);
    1.48 +
    1.49 +  // append to entry
    1.50 +  asyncOpenCacheEntry("http://data/",
    1.51 +                      "disk", Ci.nsICacheStorage.OPEN_NORMALLY, null,
    1.52 +                      append_datafile);
    1.53 +}
    1.54 +
    1.55 +function append_datafile(status, entry)
    1.56 +{
    1.57 +  do_check_eq(status, Cr.NS_OK);
    1.58 +  var os = entry.openOutputStream(entry.dataSize);
    1.59 +  var data = gen_1MiB();
    1.60 +
    1.61 +  // append 1MiB
    1.62 +  try {
    1.63 +    write_and_check(os, data, data.length);
    1.64 +    do_throw();
    1.65 +  }
    1.66 +  catch (ex) { }
    1.67 +
    1.68 +  // closing the ostream should fail in this case
    1.69 +  try {
    1.70 +    os.close();
    1.71 +    do_throw();
    1.72 +  }
    1.73 +  catch (ex) { }
    1.74 +
    1.75 +  entry.close();
    1.76 +
    1.77 +  do_test_finished();
    1.78 +}
    1.79 +
    1.80 +function run_test() {
    1.81 +  if (newCacheBackEndUsed()) {
    1.82 +    // Needs limit preferences
    1.83 +    do_check_true(true, "This test doesn't run with the new cache backend, the test or the cache needs to be fixed");
    1.84 +    return;
    1.85 +  }
    1.86 +
    1.87 +  do_get_profile();
    1.88 +
    1.89 +  // clear the cache
    1.90 +  evict_cache_entries();
    1.91 +
    1.92 +  asyncOpenCacheEntry("http://data/",
    1.93 +                      "disk", Ci.nsICacheStorage.OPEN_NORMALLY, null,
    1.94 +                      write_datafile);
    1.95 +
    1.96 +  do_test_pending();
    1.97 +}