Add admin_member_view Feature Flag (#16346)

* Adds an admin_member_view feature flag and spec

* Adds the admin_member_view FeatureFlag to seeds_e2e for testing

lib/data_update_scripts/20220128150709_add_admin_member_view_feature_flag.rb

@@ -0,0 +1,7 @@
+module DataUpdateScripts
+  class AddAdminMemberViewFeatureFlag
+    def run
+      FeatureFlag.add(:admin_member_view)
+    end
+  end
+end

spec/lib/data_update_scripts/add_admin_member_view_feature_flag_spec.rb

@@ -0,0 +1,24 @@
+require "rails_helper"
+require Rails.root.join(
+  "lib/data_update_scripts/20220128150709_add_admin_member_view_feature_flag.rb",
+)
+
+describe DataUpdateScripts::AddAdminMemberViewFeatureFlag do
+  after do
+    FeatureFlag.remove(:admin_member_view)
+  end
+
+  it "adds the :admin_member_view flag" do
+    expect do
+      described_class.new.run
+    end.to change { FeatureFlag.exist?(:admin_member_view) }.from(false).to(true)
+  end
+
+  it "works if the flag is already available" do
+    FeatureFlag.add(:admin_member_view)
+
+    expect do
+      described_class.new.run
+    end.not_to change { FeatureFlag.exist?(:admin_member_view) }
+  end
+end

spec/support/seeds/seeds_e2e.rb

@@ -64,6 +64,11 @@ admin_user = User.find_by(email: "admin@forem.local")
 
 ##############################################################################
 
+# Enable Admin Member View feature flag for tests
+FeatureFlag.enable(:admin_member_view)
+
+##############################################################################
+
 seeder.create_if_doesnt_exist(User, "email", "trusted-user-1@forem.local") do
   user = User.create!(
     name: "Trusted User 1 \\:/",