diff --git a/src/test/java/net/hostsharing/hsadminng/rbac/context/ContextBasedTest.java b/src/test/java/net/hostsharing/hsadminng/rbac/context/ContextBasedTest.java
index 2f1b3750..e6b316c5 100644
--- a/src/test/java/net/hostsharing/hsadminng/rbac/context/ContextBasedTest.java
+++ b/src/test/java/net/hostsharing/hsadminng/rbac/context/ContextBasedTest.java
@@ -13,8 +13,6 @@ import jakarta.persistence.PersistenceContext;
 import jakarta.persistence.Table;
 import java.sql.Timestamp;
 
-import static org.assertj.core.api.Assertions.assertThat;
-
 @Import(RbacGrantsDiagramService.class)
 public abstract class ContextBasedTest {
 
@@ -77,28 +75,10 @@ public abstract class ContextBasedTest {
         final var table = entity.getClass().getAnnotation(Table.class);
         final var legacyIdTable = table.schema() + "." + table.name().replace("_rv", "") + "_legacy_id";
 
-        final var legacyId = getSingleLegacyIdByUuidOrFail(entity, legacyIdTable, legacyIdColumnName);
-        assertThatLegacyIdExistsExactlyOnce(legacyIdColumnName, legacyIdTable, legacyId);
-    }
-
-    private void assertThatLegacyIdExistsExactlyOnce(final String legacyIdColumnName, final String legacyIdTable, final long legacyId) {
-        em.createNativeQuery("SELECT *" +
+        em.createNativeQuery("SELECT " + legacyIdColumnName +
                         " FROM " + legacyIdTable +
-                        " WHERE " + legacyIdColumnName + " = '" + legacyId + "'")
-                .getSingleResult(); // fails if there is not exactly one result
+                        " WHERE uuid = '" + entity.getUuid() + "'", Long.class)
+                .getSingleResult(); // fails if there is 0 or more than 1 result
+        // that the legacyId is unique is checked by a DB constraint, if applicable
     }
-
-    private long getSingleLegacyIdByUuidOrFail(final BaseEntity<?> entity,
-            final String legacyIdTable,
-            final String legacyIdColumnName) {
-        final var uuid = entity.getUuid();
-        @SuppressWarnings("unchecked") // the auto-formatter should keep this linebreak
-        final var legacyId = (Long) em.createNativeQuery("SELECT " + legacyIdColumnName +
-                        " FROM " + legacyIdTable +
-                        " WHERE uuid = '" + uuid + "'", Long.class)
-                .getSingleResult();
-        assertThat(legacyId).isNotNull();
-        return legacyId;
-    }
-
 }