add some tests for whois api

spec/users_admin_spec.rb

@@ -180,4 +180,38 @@ describe "iApi users admin route" do
       end
     end
   end
+  context '/whois' do
+    it 'queries users' do
+      get_as('admin', '/users_admin/whois', search: 'user1@example.com')
+      expect(last_response.parsed_body["matches"].size).to eq(1)
+      expect(last_response.parsed_body["matches"][0]["email_object"]).to eq("EmailUser")
+      get_as('admin', '/users_admin/whois', search: 'user1@')
+      expect(last_response.parsed_body["matches"].size).to eq(1)
+      expect(last_response.parsed_body["matches"][0]["email"]).to eq("user1@example.com")
+      expect(last_response.parsed_body["matches"][0]["email_object"]).to eq("EmailUser")
+    end
+    it 'queries forwards' do
+      get_as('admin', '/users_admin/whois', search: 'fwd3@')
+      expect(last_response.parsed_body["matches"].size).to eq(1)
+      expect(last_response.parsed_body["matches"][0]["email_object"]).to eq("EmailAlias")
+      expect(last_response.parsed_body["matches"][0]["resource"]).to eq("mail_alias")
+      expect(last_response.parsed_body["matches"][0]["forwards"]).to eq(["user1@example.com"])
+      get_as('admin', '/users_admin/whois', search: 'fwd5@')
+      expect(last_response.parsed_body["matches"].size).to eq(1)
+      expect(last_response.parsed_body["matches"][0]["email_object"]).to be_nil
+      expect(last_response.parsed_body["matches"][0]["forwards"]).to eq(["external@test.com"])
+    end
+    it 'queries resources' do
+      u = EmailUser.active.all.sample
+      ResourceManager.create!(
+        "schleuder",
+        u.email,
+        {name: "testcreation",
+         domain: "example.com",
+         schleuder_host: "schleuder1"})
+      get_as('admin', '/users_admin/whois', search: 'testcreation@example.com')
+      expect(last_response.parsed_body["matches"].size).to eq(1)
+      expect(last_response.parsed_body["matches"][0]["resource"]).to eq("schleuder")
+    end
+  end
 end