Feat: Add TranslationFacilityTest

src/test/java/core/model/TranslationFacilityTest.java

@@ -0,0 +1,75 @@
+package core.model;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.MissingResourceException;
+
+import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
+import static org.assertj.core.api.AssertionsForClassTypes.assertThatThrownBy;
+
+class TranslationFacilityTest {
+
+    @Test
+    void getTranslator() {
+        // given
+        TranslationFacility.setTranslator(null);
+
+        // when
+        final var translator = TranslationFacility.getTranslator();
+
+        // then
+        assertThat(translator.getLanguage()).isEqualTo(Translator.LANGUAGE_NO_TRANSLATION);
+    }
+
+    @Test
+    void setLanguage_with_German() {
+        // given
+        TranslationFacility.setLanguage("German");
+
+        // when
+        final var translator = TranslationFacility.getTranslator();
+
+        // then
+        assertThat(translator.getLanguage()).isEqualTo("German");
+    }
+
+    @Test
+    void setLanguage_unknown_throws_exception() {
+        // when-then
+        assertThatThrownBy(() -> TranslationFacility.setLanguage("foobar")).isInstanceOf(MissingResourceException.class);
+    }
+
+    @Test
+    void setTranslator() {
+        // when
+        TranslationFacility.setTranslator(null);
+
+        // then
+        assertThat(TranslationFacility.getTranslator()).isNotNull();
+        assertThat(TranslationFacility.getTranslator().getLanguage()).isEqualTo(Translator.LANGUAGE_NO_TRANSLATION);
+    }
+
+    @Test
+    void tr_with_initial_translator_results_in_no_translation() {
+        // given
+        TranslationFacility.setTranslator(null);
+
+        // when
+        final var translation = TranslationFacility.tr("ls.button.save");
+
+        // then
+        assertThat(translation).isEqualTo("!ls.button.save!");
+    }
+
+    @Test
+    void trWithVariables() {
+        // given
+        TranslationFacility.setLanguage("English");
+
+        // when
+        final var translation = TranslationFacility.tr("ls.teamanalyzer.bot_since", "EVER");
+
+        // then
+        assertThat(translation).isEqualTo("since EVER");
+    }
+}