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-rw-r--r--netwerk/test/unit/test_cache2-25-chunk-memory-limit.js53
1 files changed, 53 insertions, 0 deletions
diff --git a/netwerk/test/unit/test_cache2-25-chunk-memory-limit.js b/netwerk/test/unit/test_cache2-25-chunk-memory-limit.js
new file mode 100644
index 0000000000..cbad8918ad
--- /dev/null
+++ b/netwerk/test/unit/test_cache2-25-chunk-memory-limit.js
@@ -0,0 +1,53 @@
+"use strict";
+
+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();
+
+ // set max chunks memory so that only one full chunk fits within the limit
+ Services.prefs.setIntPref("browser.cache.disk.max_chunks_memory_usage", 300);
+
+ asyncOpenCacheEntry(
+ "http://a/",
+ "disk",
+ Ci.nsICacheStorage.OPEN_NORMALLY,
+ null,
+ function (status, entry) {
+ Assert.equal(status, Cr.NS_OK);
+ var data = gen_200k();
+ oStr = entry.openOutputStream(0, data.length);
+ Assert.equal(data.length, oStr.write(data, data.length));
+
+ asyncOpenCacheEntry(
+ "http://b/",
+ "disk",
+ Ci.nsICacheStorage.OPEN_NORMALLY,
+ null,
+ function (status, entry) {
+ Assert.equal(status, Cr.NS_OK);
+ var oStr2 = entry.openOutputStream(0, data.length);
+ do_check_throws_nsIException(
+ () => oStr2.write(data, data.length),
+ "NS_ERROR_OUT_OF_MEMORY"
+ );
+ finish_cache2_test();
+ }
+ );
+ }
+ );
+
+ do_test_pending();
+}