--- a/b2g/components/test/unit/test_signintowebsite.js
+++ b/b2g/components/test/unit/test_signintowebsite.js
@@ -201,16 +201,17 @@ function test_request_login_logout() {
 function test_options_pass_through() {
   do_test_pending();
 
   // An meaningless structure for testing that RP messages preserve
   // objects and their parameters as they are passed back and forth.
   let randomMixedParams = {
     loggedInUser: "juanita@mozilla.com",
     forceAuthentication: true,
+    issuer: "https://foo.com",
     someThing: {
       name: "Pertelote",
       legs: 4,
       nested: {bee: "Eric", remaining: "1/2"}
       }
     };
 
   let mockedDoc = mockDoc(randomMixedParams, function(action, params) {});

--- a/toolkit/identity/tests/unit/test_minimalidentity.js
+++ b/toolkit/identity/tests/unit/test_minimalidentity.js
@@ -76,16 +76,35 @@ function test_request_forceAuthenticatio
     run_next_test();
    });
 
   MinimalIDService.RP.watch(mockedDoc);
   MinimalIDService.RP.request(mockedDoc.id, {forceAuthentication: true});
 }
 
 /*
+ * Test that the issuer can be forced
+ */
+function test_request_forceIssuer() {
+  do_test_pending();
+
+  let mockedDoc = mock_doc(null, TEST_URL);
+  makeObserver("identity-controller-request", function (aSubject, aTopic, aData) {
+    do_check_eq(aSubject.wrappedJSObject.id, mockedDoc.id);
+    do_check_eq(aSubject.wrappedJSObject.origin, TEST_URL);
+    do_check_eq(aSubject.wrappedJSObject.issuer, "https://jed.gov");
+    do_test_finished();
+    run_next_test();
+   });
+
+  MinimalIDService.RP.watch(mockedDoc);
+  MinimalIDService.RP.request(mockedDoc.id, {issuer: "https://jed.gov"});
+}
+
+/*
  * Test that the "identity-controller-logout" signal is emitted correctly
  */
 function test_logout() {
   do_test_pending();
 
   let mockedDoc = mock_doc(null, TEST_URL);
   makeObserver("identity-controller-logout", function (aSubject, aTopic, aData) {
     do_check_eq(aSubject.wrappedJSObject.id, mockedDoc.id);
@@ -98,16 +117,17 @@ function test_logout() {
 }
 
 let TESTS = [
   test_overall,
   test_mock_doc,
   test_watch,
   test_request,
   test_request_forceAuthentication,
+  test_request_forceIssuer,
   test_logout
 ];
 
 TESTS.forEach(add_test);
 
 function run_test() {
   run_next_test();
 }

--- a/toolkit/identity/tests/unit/test_relying_party.js
+++ b/toolkit/identity/tests/unit/test_relying_party.js
@@ -161,26 +161,44 @@ function test_request() {
 function test_request_forceAuthentication() {
   do_test_pending();
 
   let mockedDoc = mock_doc(null, TEST_URL, function(action, params) {});
 
   RelyingParty.watch(mockedDoc);
 
   makeObserver("identity-request", function(aSubject, aTopic, aData) {
-    dump("teh obj is " + JSON.stringify(aSubject.wrappedJSObject) + "\n");
     do_check_eq(aSubject.wrappedJSObject.rpId, mockedDoc.id);
     do_check_eq(aSubject.wrappedJSObject.forceAuthentication, true);
     do_test_finished();
     run_next_test();
   });
 
   RelyingParty.request(mockedDoc.id, {forceAuthentication: true});
 }
 
+/*
+ * ensure the issuer can be forced
+ */
+function test_request_forceIssuer() {
+  do_test_pending();
+
+  let mockedDoc = mock_doc(null, TEST_URL, function(action, params) {});
+
+  RelyingParty.watch(mockedDoc);
+
+  makeObserver("identity-request", function(aSubject, aTopic, aData) {
+    do_check_eq(aSubject.wrappedJSObject.rpId, mockedDoc.id);
+    do_check_eq(aSubject.wrappedJSObject.issuer, "https://ozten.co.uk");
+    do_test_finished();
+    run_next_test();
+  });
+
+  RelyingParty.request(mockedDoc.id, {issuer: "https://ozten.co.uk"});
+}
 function test_logout() {
   do_test_pending();
 
   resetState();
 
   let id = TEST_USER;
   setup_test_identity(id, TEST_CERT, function() {
     let store = get_idstore();
@@ -221,16 +239,17 @@ function test_logout() {
 let TESTS = [
   test_watch_loggedin_ready,
   test_watch_loggedin_login,
   test_watch_loggedin_logout,
   test_watch_notloggedin_ready,
   test_watch_notloggedin_logout,
   test_request,
   test_request_forceAuthentication,
+  test_request_forceIssuer,
   test_logout
 ];
 
 TESTS.forEach(add_test);
 
 function run_test() {
   run_next_test();
 }