Sync the e-mail list before attempting to remove an e-mail

Fixes #1123. This is probably a suboptimal fix. Ideally, there would be
an API call that removes an e-mail and cancels the account iff there are
no other addresses but it would be hard to combine this with the confirmation
step.

resources/static/pages/manage_account.js

@@ -39,33 +39,37 @@ BrowserID.manageAccount = (function() {
   }
 
   function removeEmail(email, oncomplete) {
-    var emails = user.getStoredEmailKeypairs();
-
     function complete() {
       oncomplete && oncomplete();
     }
 
-    if (_.size(emails) > 1) {
-      if (confirmAction("Remove " + email + " from your BrowserID?")) {
-        user.removeEmail(email, function() {
-          displayStoredEmails(oncomplete);
-        }, pageHelpers.getFailure(errors.removeEmail, oncomplete));
-      }
-      else {
-        complete();
+    user.syncEmails(function() {
+      var emails = user.getStoredEmailKeypairs();
+      if (!emails[email]) {
+        displayStoredEmails(oncomplete);
       }
-    }
-    else {
-      if (confirmAction("Removing the last address will cancel your BrowserID account.\nAre you sure you want to continue?")) {
-        user.cancelUser(function() {
-          doc.location="/";
+      else if (_.size(emails) > 1) {
+        if (confirmAction("Remove " + email + " from your BrowserID?")) {
+          user.removeEmail(email, function() {
+            displayStoredEmails(oncomplete);
+          }, pageHelpers.getFailure(errors.removeEmail, oncomplete));
+        }
+        else {
           complete();
-        }, pageHelpers.getFailure(errors.cancelUser, oncomplete));
+        }
       }
       else {
-        complete();
+        if (confirmAction("Removing the last address will cancel your BrowserID account.\nAre you sure you want to continue?")) {
+          user.cancelUser(function() {
+            doc.location="/";
+            complete();
+          }, pageHelpers.getFailure(errors.cancelUser, oncomplete));
+        }
+        else {
+          complete();
+        }
       }
-    }
+    }, pageHelpers.getFailure(errors.syncEmails, oncomplete));
   }
 
   function displayEmails(emails) {

resources/static/test/cases/pages/manage_account.js

@@ -68,7 +68,6 @@
 
     bid.manageAccount(mocks, function() {
       // switch to a single address return on the sync.
-      xhr.useResult("valid");
       bid.manageAccount.removeEmail("testuser@testuser.com", function() {
         equal($("#emailList").children().length, 1, "after removing an email, only one remains");
         start();
@@ -97,6 +96,25 @@
       });
     });
   });
+  
+  asyncTest("removeEmail doesn't cancel the account when removing a non-existent e-mail", function() {
+    bid.manageAccount(mocks, function() {
+      bid.manageAccount.removeEmail("non@existent.com", function() {
+        notEqual(mocks.document.location, "/", "redirection did not happen");
+        start();
+      });
+    });
+  });
+  
+  asyncTest("removeEmail doesn't cancel the account when out of sync with the server", function() {
+    bid.manageAccount(mocks, function() {
+      xhr.useResult("multiple");
+      bid.manageAccount.removeEmail("testuser@testuser.com", function() {
+        notEqual(mocks.document.location, "/", "redirection did not happen");
+        start();
+      });
+    });
+  });
 
   asyncTest("removeEmail with single email cancels account and XHR error", function() {
     xhr.useResult("valid");

resources/static/test/mocks/xhr.js

@@ -70,6 +70,7 @@ BrowserID.Mocks.xhr = (function() {
       "get /wsapi/have_email?email=unregistered%40testuser.com valid": { email_known: false },
       "post /wsapi/remove_email valid": { success: true },
       "post /wsapi/remove_email invalid": { success: false },
+      "post /wsapi/remove_email multiple": { success: true },
       "post /wsapi/remove_email ajaxError": undefined,
       "post /wsapi/account_cancel valid": { success: true },
       "post /wsapi/account_cancel invalid": { success: false },