Fix feature_flags_helper specs

ee/app/helpers/feature_flags_helper.rb

@@ -6,6 +6,6 @@ module FeatureFlagsHelper
   end
 
   def unleash_api_instanceid(project)
-    project.feature_flag_instance_token
+    project.feature_flags_instance_token
   end
 end

ee/spec/helpers/feature_flags_helper_spec.rb

+require 'spec_helper'
+
+describe FeatureFlagsHelper do
+  set(:project) { create(:project) }
+
+  context '#unleash_api_url' do
+    subject { helper.unleash_api_url(project) }
+
+    it { is_expected.to end_with("/api/v4/feature_flags/unleash/#{project.id}") }
+  end
+
+  context '#unleash_api_instanceid' do
+    subject { helper.unleash_api_instanceid(project) }
+
+    it { is_expected.not_to be_empty }
+  end
+end