[ODPR-1752] - Bug fix - international countries showing UK

app/models/CountriesList.scala

@@ -225,7 +225,7 @@ trait CountriesList {
 
   lazy val gbCountry: Country = allCountries.filter(x => x.code == "GB").head
   lazy val ukCountries: Seq[Country] = allCountries.filter(x => x.code == "GG" || x.code == "IM" || x.code == "JE")
-  lazy val internationalCountries: Seq[Country] = allCountries.filterNot(x => ukCountries.exists(_.code == x.code))
+  lazy val internationalCountries: Seq[Country] = allCountries.filterNot(x => x.code == "GG" || x.code == "IM" || x.code == "JE" || x.code == "GB")
   lazy val nonUkInternationalCountries: Seq[Country] = allCountries.filterNot(_.code == "GB")
 }
 

test/models/CountriesListSpec.scala

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2025 HM Revenue & Customs
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package models
+
+import org.scalatest.freespec.AnyFreeSpec
+import org.scalatest.matchers.must.Matchers
+
+class CountriesListSpec extends AnyFreeSpec with Matchers {
+
+  val countryList: CountriesList = new CountriesList {}
+
+  "CountryList" - {
+    "must have only GB in country list for gbCountry" in {
+
+      countryList.gbCountry mustEqual Country("GB", "United Kingdom")
+    }
+
+    "must have only Jersey, Guernsey, Isle of Man for ukCountries" in {
+
+      countryList.ukCountries mustEqual List(Country("GG", "Guernsey"),
+        Country("IM", "The Isle of Man"),
+        Country("JE", "Jersey"))
+    }
+
+    "must have only International countries for internationalCountries" in {
+
+      countryList.internationalCountries mustEqual
+        countryList.allCountries.filterNot(x => x.code == "GG" || x.code == "IM" || x.code == "JE" || x.code == "GB")
+      countryList.internationalCountries must not contain Country("GB", "United Kingdom")
+    }
+
+    "must have all countries except GB for nonUkInternationalCountries" in {
+
+      countryList.nonUkInternationalCountries must not contain Country("GB", "United Kingdom")
+    }
+  }
+
+}