diff --git a/openbas-api/src/test/java/io/openbas/injects/InjectCrudTest.java b/openbas-api/src/test/java/io/openbas/injects/InjectCrudTest.java
index d87b348cd2..a79ed151ac 100644
--- a/openbas-api/src/test/java/io/openbas/injects/InjectCrudTest.java
+++ b/openbas-api/src/test/java/io/openbas/injects/InjectCrudTest.java
@@ -1,5 +1,11 @@
 package io.openbas.injects;
 
+import static io.openbas.injectors.email.EmailContract.EMAIL_DEFAULT;
+import static io.openbas.utils.fixtures.ExerciseFixture.getExercise;
+import static io.openbas.utils.fixtures.InjectFixture.createDefaultInjectEmail;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.TestInstance.Lifecycle.PER_CLASS;
+
 import io.openbas.IntegrationTest;
 import io.openbas.database.model.Exercise;
 import io.openbas.database.model.Inject;
@@ -15,24 +21,14 @@
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.transaction.annotation.Transactional;
 
-import static io.openbas.injectors.email.EmailContract.EMAIL_DEFAULT;
-import static io.openbas.utils.fixtures.ExerciseFixture.getExercise;
-import static io.openbas.utils.fixtures.InjectFixture.createDefaultInjectEmail;
-import static org.junit.jupiter.api.Assertions.assertNotNull;
-import static org.junit.jupiter.api.TestInstance.Lifecycle.PER_CLASS;
-
 @TestInstance(PER_CLASS)
 class InjectCrudTest extends IntegrationTest {
 
-  @Autowired
-  private InjectorContractRepository injectorContractRepository;
-  @Autowired
-  private InjectRepository injectRepository;
+  @Autowired private InjectorContractRepository injectorContractRepository;
+  @Autowired private InjectRepository injectRepository;
 
-  @Autowired
-  private ExerciseService exerciseService;
-  @Autowired
-  private ExerciseRepository exerciseRepository;
+  @Autowired private ExerciseService exerciseService;
+  @Autowired private ExerciseRepository exerciseRepository;
 
   private static String EXERCISE_ID;
   private static String INJECT_ID;
@@ -49,13 +45,25 @@ void afterAll() {
   void createInjectSuccess() {
     // -- PREPARE --
     Exercise exercise = this.exerciseService.createExercise(getExercise());
+    assertNotNull(exercise.getId(), "Exercise ID should not be null after creation.");
     EXERCISE_ID = exercise.getId();
-    InjectorContract contract = injectorContractRepository.findById(EMAIL_DEFAULT).orElseThrow();
+
+    InjectorContract contract =
+        injectorContractRepository
+            .findById(EMAIL_DEFAULT)
+            .orElseThrow(() -> new IllegalStateException("Injector contract not found."));
     Inject inject = createDefaultInjectEmail(contract);
+    inject.setExercise(exercise);
 
     // -- EXECUTE --
     Inject injectCreated = this.injectRepository.save(inject);
+    assertNotNull(injectCreated.getId(), "Inject ID should not be null after saving.");
     INJECT_ID = injectCreated.getId();
-    assertNotNull(injectCreated);
+
+    // -- VALIDATE --
+    assertNotNull(injectCreated.getExercise(), "Inject should reference a valid Exercise.");
+    assertNotNull(
+        injectRepository.findById(injectCreated.getId()),
+        "Inject should be persisted in the database.");
   }
 }
diff --git a/openbas-api/src/test/java/io/openbas/utils/fixtures/InjectFixture.java b/openbas-api/src/test/java/io/openbas/utils/fixtures/InjectFixture.java
index 56d6866416..d2d2cd8003 100644
--- a/openbas-api/src/test/java/io/openbas/utils/fixtures/InjectFixture.java
+++ b/openbas-api/src/test/java/io/openbas/utils/fixtures/InjectFixture.java
@@ -27,8 +27,7 @@ public static Inject createDefaultInjectEmail(InjectorContract injectorContract)
   }
 
   public static Inject createDefaultInjectChallenge(
-      InjectorContract injectorContract, ObjectMapper objectMapper, List<String> challengeIds
-  ) {
+      InjectorContract injectorContract, ObjectMapper objectMapper, List<String> challengeIds) {
     Inject inject = createInject(injectorContract, INJECT_CHALLENGE_NAME);
 
     ChallengeContent content = new ChallengeContent();
@@ -38,8 +37,7 @@ public static Inject createDefaultInjectChallenge(
   }
 
   public static Inject createInjectCommandPayload(
-      InjectorContract injectorContract, Map<String, String> payloadArguments
-  ) {
+      InjectorContract injectorContract, Map<String, String> payloadArguments) {
 
     Inject inject = createInject(injectorContract, "Inject title");
     ObjectMapper objectMapper = new ObjectMapper();