diff --git a/.idea/runConfigurations/FlagsRepositoryTest.xml b/.idea/runConfigurations/FlagsRepositoryTest.xml
new file mode 100644
index 0000000..d0820b0
--- /dev/null
+++ b/.idea/runConfigurations/FlagsRepositoryTest.xml
@@ -0,0 +1,18 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="FlagsRepositoryTest" type="JUnit" factoryName="JUnit" nameIsGenerated="true">
+    <module name="MetaTerm.core-repository.tests.jvmMain" />
+    <extension name="coverage">
+      <pattern>
+        <option name="PATTERN" value="repository.*" />
+        <option name="ENABLED" value="true" />
+      </pattern>
+    </extension>
+    <option name="PACKAGE_NAME" value="repository" />
+    <option name="MAIN_CLASS_NAME" value="repository.FlagsRepositoryTest" />
+    <option name="METHOD_NAME" value="" />
+    <option name="TEST_OBJECT" value="class" />
+    <method v="2">
+      <option name="Make" enabled="true" />
+    </method>
+  </configuration>
+</component>
\ No newline at end of file
diff --git a/core-localization/tests/build.gradle.kts b/core-localization/tests/build.gradle.kts
index c6c1803..e6d7af1 100644
--- a/core-localization/tests/build.gradle.kts
+++ b/core-localization/tests/build.gradle.kts
@@ -20,6 +20,7 @@ kotlin {
     sourceSets {
         val jvmMain by getting {
             dependencies {
+                implementation(compose.desktop.currentOs)
 
                 implementation(project(":core-localization"))
                 implementation(kotlin("test-junit5"))
diff --git a/core-persistence/tests/build.gradle.kts b/core-persistence/tests/build.gradle.kts
index d71c4f4..92acf50 100644
--- a/core-persistence/tests/build.gradle.kts
+++ b/core-persistence/tests/build.gradle.kts
@@ -20,6 +20,7 @@ kotlin {
     sourceSets {
         val jvmMain by getting {
             dependencies {
+                implementation(compose.desktop.currentOs)
                 implementation(libs.kotlinx.coroutines.test)
 
                 implementation(project(":core-common"))
diff --git a/core-repository/tests/build.gradle.kts b/core-repository/tests/build.gradle.kts
index 58d2c87..2e6fb51 100644
--- a/core-repository/tests/build.gradle.kts
+++ b/core-repository/tests/build.gradle.kts
@@ -20,6 +20,7 @@ kotlin {
     sourceSets {
         val jvmMain by getting {
             dependencies {
+                implementation(compose.desktop.currentOs)
                 implementation(libs.kotlinx.coroutines.test)
 
                 implementation(project(":core-common"))
diff --git a/core-repository/tests/src/jvmMain/kotlin/repository/FlagsRepositoryTest.kt b/core-repository/tests/src/jvmMain/kotlin/repository/FlagsRepositoryTest.kt
new file mode 100644
index 0000000..bc859d7
--- /dev/null
+++ b/core-repository/tests/src/jvmMain/kotlin/repository/FlagsRepositoryTest.kt
@@ -0,0 +1,38 @@
+package repository
+
+import kotlin.test.Test
+
+class FlagsRepositoryTest {
+
+    private val sut = FlagsRepository()
+
+    @Test
+    fun givenRepositoryWhenItLanguageFlagIsQueriedThenCorrectFlagIsReturned() {
+        val res = sut.getFlag("it")
+        assert(res == "\uD83C\uDDEE\uD83C\uDDF9")
+    }
+
+    @Test
+    fun givenRepositoryWhenDeLanguageFlagIsQueriedThenCorrectFlagIsReturned() {
+        val res = sut.getFlag("de")
+        assert(res == "\uD83C\uDDE9\uD83C\uDDEA")
+    }
+
+    @Test
+    fun givenRepositoryWhenFrLanguageFlagIsQueriedThenCorrectFlagIsReturned() {
+        val res = sut.getFlag("fr")
+        assert(res == "\uD83C\uDDEB\uD83C\uDDF7")
+    }
+
+    @Test
+    fun givenRepositoryWhenElLanguageFlagIsQueriedThenCorrectFlagIsReturned() {
+        val res = sut.getFlag("el")
+        assert(res == "\uD83C\uDDEC\uD83C\uDDF7")
+    }
+
+    @Test
+    fun givenRepositoryWhenUnknownLanguageFlagIsQueriedThenDefaultFlagIsReturned() {
+        val res = sut.getFlag("xx")
+        assert(res == "\uD83C\uDDEC\uD83C\uDDE7")
+    }
+}
\ No newline at end of file