fune/netwerk/test/unit/test_cache2-07a-open-memory.js

"use strict";

function run_test() {
  do_get_profile();

  // First check how behaves the memory storage.

  asyncOpenCacheEntry(
    "http://mem-first/",
    "memory",
    Ci.nsICacheStorage.OPEN_NORMALLY,
    null,
    new OpenCallback(NEW, "mem1-meta", "mem1-data", function(entryM1) {
      Assert.ok(!entryM1.persistent);
      asyncOpenCacheEntry(
        "http://mem-first/",
        "disk",
        Ci.nsICacheStorage.OPEN_NORMALLY,
        null,
        new OpenCallback(NORMAL, "mem1-meta", "mem1-data", function(entryM2) {
          Assert.ok(!entryM1.persistent);
          Assert.ok(!entryM2.persistent);

          // Now check the disk storage behavior.

          asyncOpenCacheEntry(
            "http://disk-first/",
            "disk",
            Ci.nsICacheStorage.OPEN_NORMALLY,
            null,
            // Must wait for write, since opening the entry as memory-only before the disk one
            // is written would cause NS_ERROR_NOT_AVAILABLE from openOutputStream when writing
            // this disk entry since it's doomed during opening of the memory-only entry for the same URL.
            new OpenCallback(
              NEW | WAITFORWRITE,
              "disk1-meta",
              "disk1-data",
              function(entryD1) {
                Assert.ok(entryD1.persistent);
                // Now open the same URL as a memory-only entry, the disk entry must be doomed.
                asyncOpenCacheEntry(
                  "http://disk-first/",
                  "memory",
                  Ci.nsICacheStorage.OPEN_NORMALLY,
                  null,
                  // This must be recreated
                  new OpenCallback(NEW, "mem2-meta", "mem2-data", function(
                    entryD2
                  ) {
                    Assert.ok(entryD1.persistent);
                    Assert.ok(!entryD2.persistent);
                    // Check we get it back, even when opening via the disk storage
                    asyncOpenCacheEntry(
                      "http://disk-first/",
                      "disk",
                      Ci.nsICacheStorage.OPEN_NORMALLY,
                      null,
                      new OpenCallback(
                        NORMAL,
                        "mem2-meta",
                        "mem2-data",
                        function(entryD3) {
                          Assert.ok(entryD1.persistent);
                          Assert.ok(!entryD2.persistent);
                          Assert.ok(!entryD3.persistent);
                          finish_cache2_test();
                        }
                      )
                    );
                  })
                );
              }
            )
          );
        })
      );
    })
  );

  do_test_pending();
}