feat(i18n): Implement localization management with Language and LocalizationManager classes
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extio-de
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package de.extio.game_engine.i18n;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import static org.junit.jupiter.api.Assertions.assertNotNull;
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import static org.junit.jupiter.api.Assertions.assertTrue;
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import static org.junit.jupiter.api.Assertions.assertFalse;
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import java.io.ByteArrayInputStream;
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import java.io.InputStream;
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import java.util.LinkedHashMap;
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import java.util.List;
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import java.util.Map;
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import org.junit.jupiter.api.BeforeEach;
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import org.junit.jupiter.api.Test;
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class LocalizationManagerTest {
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private LocalizationManager localizationManager;
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@BeforeEach
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void setUp() {
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this.localizationManager = new LocalizationManagerImpl();
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}
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@Test
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void testReset() {
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this.localizationManager.reset();
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assertNotNull(this.localizationManager.getLocalizations());
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assertTrue(this.localizationManager.getLanguages().isEmpty());
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}
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@Test
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void testResetEntries() {
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Localizations localizations = this.localizationManager.getLocalizations();
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Language english = new Language("English", "en");
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localizations.getLanguagesInfo().put("en", english);
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localizations.getLanguages().put("en", new LinkedHashMap<>(Map.of("greeting", "Hello")));
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this.localizationManager.setLanguage("en");
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this.localizationManager.resetEntries();
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assertTrue(localizations.getLanguages().get("en").isEmpty());
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}
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@Test
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void testLoadLocalizations() {
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Localizations localizationsToSave = new Localizations();
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Language english = new Language("English", "en");
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Map<String, String> englishEntries = new LinkedHashMap<>(Map.of("greeting", "Hello", "farewell", "Goodbye"));
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localizationsToSave.getLanguagesInfo().put("en", english);
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localizationsToSave.getLanguages().put("en", englishEntries);
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localizationsToSave.setPrefix("i18n.");
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localizationsToSave.setCurId(1);
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byte[] serialized = de.extio.game_engine.util.ObjectSerialization.serialize(
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localizationsToSave, false, false, false, null, digest -> {
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});
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InputStream stream = new ByteArrayInputStream(serialized);
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this.localizationManager.load(stream);
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Localizations loaded = this.localizationManager.getLocalizations();
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assertNotNull(loaded);
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assertEquals("i18n.", loaded.getPrefix());
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List<Language> languages = this.localizationManager.getLanguages();
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assertEquals(1, languages.size());
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assertEquals("en", languages.getFirst().getShortName());
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assertEquals("en", this.localizationManager.getCurrentLanguage());
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assertEquals("Hello", this.localizationManager.translate("greeting"));
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assertEquals("Goodbye", this.localizationManager.translate("farewell"));
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}
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@Test
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void testSetLanguage() {
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Localizations localizations = this.localizationManager.getLocalizations();
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Language english = new Language("English", "en");
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Language german = new Language("German", "de");
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localizations.getLanguagesInfo().put("en", english);
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localizations.getLanguagesInfo().put("de", german);
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localizations.getLanguages().put("en", new LinkedHashMap<>(Map.of("greeting", "Hello")));
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localizations.getLanguages().put("de", new LinkedHashMap<>(Map.of("greeting", "Hallo")));
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this.localizationManager.setLanguage("de");
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assertEquals("de", this.localizationManager.getCurrentLanguage());
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}
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@Test
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void testSetLanguageInvalid() {
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Localizations localizations = this.localizationManager.getLocalizations();
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Language english = new Language("English", "en");
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localizations.getLanguagesInfo().put("en", english);
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localizations.getLanguages().put("en", new LinkedHashMap<>(Map.of("greeting", "Hello")));
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this.localizationManager.setLanguage("en");
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this.localizationManager.setLanguage("fr");
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assertEquals("en", this.localizationManager.getCurrentLanguage());
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}
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@Test
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void testGetLanguages() {
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Localizations localizations = this.localizationManager.getLocalizations();
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Language english = new Language("English", "en");
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Language german = new Language("German", "de");
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localizations.getLanguagesInfo().put("en", english);
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localizations.getLanguagesInfo().put("de", german);
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localizations.getLanguages().put("en", new LinkedHashMap<>(Map.of("greeting", "Hello")));
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localizations.getLanguages().put("de", new LinkedHashMap<>(Map.of("greeting", "Hallo")));
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List<Language> languages = this.localizationManager.getLanguages();
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assertEquals(2, languages.size());
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assertTrue(languages.stream().anyMatch(lang -> "en".equals(lang.getShortName())));
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assertTrue(languages.stream().anyMatch(lang -> "de".equals(lang.getShortName())));
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}
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@Test
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void testGetCurrentLanguage() {
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Localizations localizations = this.localizationManager.getLocalizations();
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Language english = new Language("English", "en");
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localizations.getLanguagesInfo().put("en", english);
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localizations.getLanguages().put("en", new LinkedHashMap<>(Map.of("greeting", "Hello")));
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this.localizationManager.setLanguage("en");
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assertEquals("en", this.localizationManager.getCurrentLanguage());
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}
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@Test
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void testTranslateWithIntegerId() {
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Localizations localizations = this.localizationManager.getLocalizations();
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Language english = new Language("English", "en");
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localizations.getLanguagesInfo().put("en", english);
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localizations.getLanguages().put("en", new LinkedHashMap<>(Map.of("1", "Hello")));
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this.localizationManager.setLanguage("en");
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String result = this.localizationManager.translate(1);
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assertEquals("Hello", result);
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}
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@Test
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void testTranslateWithIntegerIdNotFound() {
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Localizations localizations = this.localizationManager.getLocalizations();
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Language english = new Language("English", "en");
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localizations.getLanguagesInfo().put("en", english);
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localizations.getLanguages().put("en", new LinkedHashMap<>());
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this.localizationManager.setLanguage("en");
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String result = this.localizationManager.translate(999);
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assertTrue(result.startsWith(LocalizationManagerImpl.NOT_FOUND_PREFIX));
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}
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@Test
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void testTranslateWithIntegerIdAndDefault() {
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Localizations localizations = this.localizationManager.getLocalizations();
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Language english = new Language("English", "en");
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localizations.getLanguagesInfo().put("en", english);
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localizations.getLanguages().put("en", new LinkedHashMap<>());
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this.localizationManager.setLanguage("en");
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String result = this.localizationManager.translate(999, "Default Text");
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assertEquals("Default Text", result);
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}
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@Test
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void testTranslateWithStringId() {
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Localizations localizations = this.localizationManager.getLocalizations();
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Language english = new Language("English", "en");
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localizations.getLanguagesInfo().put("en", english);
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localizations.getLanguages().put("en", new LinkedHashMap<>(Map.of("greeting", "Hello")));
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this.localizationManager.setLanguage("en");
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String result = this.localizationManager.translate("greeting");
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assertEquals("Hello", result);
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}
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@Test
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void testTranslateWithStringIdNotFound() {
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Localizations localizations = this.localizationManager.getLocalizations();
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Language english = new Language("English", "en");
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localizations.getLanguagesInfo().put("en", english);
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localizations.getLanguages().put("en", new LinkedHashMap<>());
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this.localizationManager.setLanguage("en");
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String result = this.localizationManager.translate("unknown");
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assertTrue(result.startsWith(LocalizationManagerImpl.NOT_FOUND_PREFIX));
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}
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@Test
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void testTranslateWithStringIdAndDefault() {
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Localizations localizations = this.localizationManager.getLocalizations();
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Language english = new Language("English", "en");
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localizations.getLanguagesInfo().put("en", english);
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localizations.getLanguages().put("en", new LinkedHashMap<>());
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this.localizationManager.setLanguage("en");
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String result = this.localizationManager.translate("unknown", "Default Text");
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assertEquals("Default Text", result);
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}
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@Test
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void testPut() {
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Localizations localizations = this.localizationManager.getLocalizations();
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Language english = new Language("English", "en");
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localizations.getLanguagesInfo().put("en", english);
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localizations.getLanguages().put("en", new LinkedHashMap<>());
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this.localizationManager.setLanguage("en");
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this.localizationManager.put("en", "greeting", "Hello");
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String result = this.localizationManager.translate("greeting");
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assertEquals("Hello", result);
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}
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@Test
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void testPutInvalidLanguage() {
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Localizations localizations = this.localizationManager.getLocalizations();
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Language english = new Language("English", "en");
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localizations.getLanguagesInfo().put("en", english);
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localizations.getLanguages().put("en", new LinkedHashMap<>());
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this.localizationManager.put("fr", "greeting", "Bonjour");
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assertTrue(localizations.getLanguages().get("en").isEmpty());
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}
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@Test
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void testRemove() {
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Localizations localizations = this.localizationManager.getLocalizations();
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Language english = new Language("English", "en");
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Map<String, String> entries = new LinkedHashMap<>(Map.of("greeting", "Hello", "farewell", "Goodbye"));
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localizations.getLanguagesInfo().put("en", english);
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localizations.getLanguages().put("en", entries);
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this.localizationManager.setLanguage("en");
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this.localizationManager.remove("greeting");
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assertFalse(localizations.getLanguages().get("en").containsKey("greeting"));
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assertTrue(localizations.getLanguages().get("en").containsKey("farewell"));
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}
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@Test
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void testGetNextId() {
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Localizations localizations = this.localizationManager.getLocalizations();
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localizations.setCurId(5);
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Integer nextId = this.localizationManager.getNextId();
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assertEquals(6, nextId);
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assertEquals(6, localizations.getCurId());
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}
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@Test
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void testGetNextIdIncremental() {
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Localizations localizations = this.localizationManager.getLocalizations();
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localizations.setCurId(0);
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Integer id1 = this.localizationManager.getNextId();
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Integer id2 = this.localizationManager.getNextId();
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Integer id3 = this.localizationManager.getNextId();
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assertEquals(1, id1);
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assertEquals(2, id2);
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assertEquals(3, id3);
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}
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@Test
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void testGetLocalizations() {
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Localizations localizations = this.localizationManager.getLocalizations();
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assertNotNull(localizations);
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assertEquals(localizations, this.localizationManager.getLocalizations());
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}
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@Test
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void testTranslateCaching() {
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Localizations localizations = this.localizationManager.getLocalizations();
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Language english = new Language("English", "en");
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localizations.getLanguagesInfo().put("en", english);
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localizations.getLanguages().put("en", new LinkedHashMap<>(Map.of("1", "Hello")));
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this.localizationManager.setLanguage("en");
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String result1 = this.localizationManager.translate(1);
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String result2 = this.localizationManager.translate(1);
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assertEquals("Hello", result1);
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assertEquals("Hello", result2);
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assertEquals(result1, result2);
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}
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@Test
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void testMultipleLanguages() {
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Localizations localizations = this.localizationManager.getLocalizations();
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Language english = new Language("English", "en");
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Language german = new Language("German", "de");
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localizations.getLanguagesInfo().put("en", english);
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localizations.getLanguagesInfo().put("de", german);
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localizations.getLanguages().put("en", new LinkedHashMap<>(Map.of("greeting", "Hello")));
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localizations.getLanguages().put("de", new LinkedHashMap<>(Map.of("greeting", "Hallo")));
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this.localizationManager.setLanguage("en");
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String englishGreeting = this.localizationManager.translate("greeting");
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this.localizationManager.setLanguage("de");
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String germanGreeting = this.localizationManager.translate("greeting");
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assertEquals("Hello", englishGreeting);
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assertEquals("Hallo", germanGreeting);
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}
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}
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