diff --git a/jollyday-tests/src/test/java/de/focus_shift/jollyday/tests/CalendarHierarchyTest.java b/jollyday-tests/src/test/java/de/focus_shift/jollyday/tests/CalendarHierarchyTest.java
new file mode 100644
index 000000000..e02c34ce0
--- /dev/null
+++ b/jollyday-tests/src/test/java/de/focus_shift/jollyday/tests/CalendarHierarchyTest.java
@@ -0,0 +1,19 @@
+package de.focus_shift.jollyday.tests;
+
+import de.focus_shift.jollyday.core.HolidayCalendar;
+import org.junit.jupiter.api.Test;
+
+import java.util.Arrays;
+
+import static de.focus_shift.jollyday.core.HolidayManager.getInstance;
+import static de.focus_shift.jollyday.core.ManagerParameters.create;
+
+class CalendarHierarchyTest {
+
+  @Test
+  void name() {
+    Arrays.stream(HolidayCalendar.values()).forEach(holidayCalendar -> {
+      System.out.println(getInstance(create(holidayCalendar)).getCalendarHierarchy());
+    });
+  }
+}