Move remember token test to model specs

The controller spec shouldn't know anything about regenerating the remember
token, so the test should be moved over to the User model spec instead.

spec/controllers/passwords_controller_spec.rb

@@ -101,16 +101,6 @@
         expect(user.reload.encrypted_password).not_to eq old_encrypted_password
       end
 
-      it "sets the remember token and clears the confirmation token" do
-        user = create(:user, :with_forgotten_password)
-
-        put :update, update_parameters(user, new_password: "my_new_password")
-
-        user.reload
-        expect(user.remember_token).not_to be_nil
-        expect(user.confirmation_token).to be_nil
-      end
-
       it "signs the user in and redirects" do
         user = create(:user, :with_forgotten_password)
 
@@ -121,7 +111,7 @@
       end
     end
 
-    context "no password provided" do
+    context "password update fails" do
       it "does not update the password" do
         user = create(:user, :with_forgotten_password)
         old_encrypted_password = user.encrypted_password

spec/user_spec.rb

@@ -85,6 +85,15 @@
 
         expect(user.confirmation_token).to be_nil
       end
+
+      it "sets the remember token" do
+        user = create(:user, :with_forgotten_password)
+
+        user.update_password("my_new_password")
+
+        user.reload
+        expect(user.remember_token).not_to be_nil
+      end
     end
 
     context "with blank password" do