1 files changed, 40 insertions, 0 deletions
diff --git a/netwerk/test/unit/test_dns_disable_ipv4.js b/netwerk/test/unit/test_dns_disable_ipv4.js
new file mode 100644
index 000000000..ec334b1f6
--- /dev/null
+++ b/netwerk/test/unit/test_dns_disable_ipv4.js
@@ -0,0 +1,40 @@
+//
+// Tests that calling asyncResolve with the RESOLVE_DISABLE_IPV4 flag doesn't
+// return any IPv4 addresses.
+//
+
+var dns = Cc["@mozilla.org/network/dns-service;1"].getService(Ci.nsIDNSService);
+var ioService = Cc["@mozilla.org/network/io-service;1"].getService(Ci.nsIIOService);
+
+var listener = {
+  onLookupComplete: function(inRequest, inRecord, inStatus) {
+    if (inStatus != Cr.NS_OK) {
+      do_check_eq(inStatus, Cr.NS_ERROR_UNKNOWN_HOST);
+      do_test_finished();
+      return;
+    }
+
+    while (true) {
+      try {
+        var answer = inRecord.getNextAddrAsString();
+        // If there is an answer it should be an IPv6  address
+        dump(answer);
+        do_check_true(answer.indexOf(':') != -1);
+      } catch (e) {
+        break;
+      }
+    }
+    do_test_finished();
+  }
+};
+
+function run_test() {
+  do_test_pending();
+  try {
+    dns.asyncResolve("example.org", Ci.nsIDNSService.RESOLVE_DISABLE_IPV4, listener, null);
+  } catch (e) {
+    dump(e);
+    do_check_true(false);
+    do_test_finished();
+  }
+}