treat empty translation values as incomplete

Resolves #347

CHANGELOG.md

@@ -4,6 +4,9 @@
 
 ## [Unreleased]
 
+### Changed
+- Treat empty translation values (e.g. "") as incomplete
+
 ## [4.4.4] - 2023-12-11
 
 ### Fixed

src/main/java/de/marhali/easyi18n/util/TranslationUtil.java

@@ -48,7 +48,8 @@ public class TranslationUtil {
      * @return true if missing values were found otherwise false
      */
     public static boolean isIncomplete(@NotNull TranslationValue value, @NotNull TranslationData data) {
-        return value.getLocaleContents().size() != data.getLocales().size();
+        return value.getLocaleContents().size() != data.getLocales().size()
+                || value.getLocaleContents().stream().anyMatch(String::isEmpty);
     }
 
     /**

src/test/java/util/TranslationUtilTest.java

@@ -0,0 +1,30 @@
+package util;
+
+import de.marhali.easyi18n.model.TranslationData;
+import de.marhali.easyi18n.model.TranslationValue;
+import de.marhali.easyi18n.util.TranslationUtil;
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.Map;
+
+public class TranslationUtilTest {
+    @Test
+    public void isIncomplete() {
+        TranslationData data = new TranslationData(true);
+
+        data.addLocale("de");
+        data.addLocale("en");
+
+        TranslationValue complete = new TranslationValue();
+        complete.setLocaleValues(Map.of("de", "deValue", "en", "enValue"));
+        Assert.assertFalse(TranslationUtil.isIncomplete(complete, data));
+
+        TranslationValue missingLocale = new TranslationValue("de", "deValue");
+        Assert.assertTrue(TranslationUtil.isIncomplete(missingLocale, data));
+
+        TranslationValue emptyLocaleValue = new TranslationValue();
+        emptyLocaleValue.setLocaleValues(Map.of("de", "deValue", "en", ""));
+        Assert.assertTrue(TranslationUtil.isIncomplete(emptyLocaleValue, data));
+    }
+}