test: add unit tests for ProvenanceManager library ID retrieval

Author: Pfeil

src/test/java/edu/kit/datamanager/ro_crate/writer/ProvenanceManagerTest.java

@@ -0,0 +1,9 @@
+package edu.kit.datamanager.ro_crate.writer;
+
+import static org.junit.jupiter.api.Assertions.*;
+class ProvenanceManagerTest {
+
+    private final String oldVersionId = new ProvenanceManager(() -> "1.0.0").getLibraryId();
+    private final String newVersionId = new ProvenanceManager(() -> "2.5.3").getLibraryId();
+  
+}

src/test/java/edu/kit/datamanager/ro_crate/writer/RoCrateMetadataGenerationTest.java

@@ -21,8 +21,6 @@
 class RoCrateMetadataGenerationTest {
 
     private final String currentVersionId = new ProvenanceManager().getLibraryId();
-    private final String oldVersionId = new ProvenanceManager(() -> "1.0.0").getLibraryId();
-    private final String newVersionId = new ProvenanceManager(() -> "2.5.3").getLibraryId();
 
     private final ObjectMapper objectMapper = new ObjectMapper();
     private Validator validator;