fix: add test

src/test/java/org/eclipse/tractusx/ssi/lib/serialization/jwt/SignedJwtFactoryTest.java

@@ -0,0 +1,47 @@
+package org.eclipse.tractusx.ssi.lib.serialization.jwt;
+
+import static org.junit.Assert.assertNotNull;
+
+import com.nimbusds.jwt.SignedJWT;
+import java.util.LinkedHashMap;
+import org.eclipse.tractusx.ssi.lib.SsiLibrary;
+import org.eclipse.tractusx.ssi.lib.crypt.octet.OctetKeyPairFactory;
+import org.eclipse.tractusx.ssi.lib.jwt.SignedJwtFactory;
+import org.eclipse.tractusx.ssi.lib.util.identity.TestIdentity;
+import org.eclipse.tractusx.ssi.lib.util.identity.TestIdentityFactory;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+public class SignedJwtFactoryTest {
+
+  private static TestIdentity credentialIssuer;
+
+  @BeforeAll
+  public static void beforeAll() {
+    SsiLibrary.initialize();
+    credentialIssuer = TestIdentityFactory.newIdentityWithED25519Keys();
+  }
+
+  @Test
+  @DisplayName(
+      "Should return a signed Jwt with the given Map of claims and the given private key.")
+  void shouldReturnSignedJWT() {
+
+    LinkedHashMap<String, Object> claims = new LinkedHashMap<>();
+    SignedJwtFactory signedJwtFactory = new SignedJwtFactory(new OctetKeyPairFactory());
+    String keyId = "key-1";
+    // When
+
+    SignedJWT signedJWT =
+        signedJwtFactory.create(
+            credentialIssuer.getDid(),
+            credentialIssuer.getDid(),
+            claims,
+            credentialIssuer.getPrivateKey(),
+            keyId);
+
+    // Then
+    assertNotNull(signedJWT);
+  }
+}