The Tor Browser: netwerk/test/unit/test

     1 var _PSvc;

     2 function get_pref_service() {

     3   if (_PSvc)

     4     return _PSvc;

     6   return _PSvc = Cc["@mozilla.org/preferences-service;1"].

     7                  getService(Ci.nsIPrefBranch);

8 }

    10 function gen_1MiB()

    11 {

    12   var i;

    13   var data="x";

    14   for (i=0 ; i < 20 ; i++)

    15     data+=data;

    16   return data;

    17 }

    19 function write_and_check(str, data, len)

    20 {

    21   var written = str.write(data, len);

    22   if (written != len) {

    23     do_throw("str.write has not written all data!\n" +

    24              "  Expected: " + len  + "\n" +

    25              "  Actual: " + written + "\n");

    26   }

    27 }

    29 function write_datafile(status, entry)

    30 {

    31   do_check_eq(status, Cr.NS_OK);

    32   var os = entry.openOutputStream(0);

    33   var data = gen_1MiB();

    35   // write 2MiB

    36   var i;

    37   for (i=0 ; i<2 ; i++)

    38     write_and_check(os, data, data.length);

    40   os.close();

    41   entry.close();

    43   // now change max_entry_size so that the existing entry is too big

    44   get_pref_service().setIntPref("browser.cache.disk.max_entry_size", 1024);

    46   // append to entry

    47   asyncOpenCacheEntry("http://data/",

    48                       "disk", Ci.nsICacheStorage.OPEN_NORMALLY, null,

    49                       append_datafile);

    50 }

    52 function append_datafile(status, entry)

    53 {

    54   do_check_eq(status, Cr.NS_OK);

    55   var os = entry.openOutputStream(entry.dataSize);

    56   var data = gen_1MiB();

    58   // append 1MiB

    59   try {

    60     write_and_check(os, data, data.length);

    61     do_throw();

    62   }

    63   catch (ex) { }

    65   // closing the ostream should fail in this case

    66   try {

    67     os.close();

    68     do_throw();

    69   }

    70   catch (ex) { }

    72   entry.close();

    74   do_test_finished();

    75 }

    77 function run_test() {

    78   if (newCacheBackEndUsed()) {

    79     // Needs limit preferences

    80     do_check_true(true, "This test doesn't run with the new cache backend, the test or the cache needs to be fixed");

    81     return;

    82   }

    84   do_get_profile();

    86   // clear the cache

    87   evict_cache_entries();

    89   asyncOpenCacheEntry("http://data/",

    90                       "disk", Ci.nsICacheStorage.OPEN_NORMALLY, null,

    91                       write_datafile);

    93   do_test_pending();

    94 }

The Tor Browser / file revision