db fix, ExerciseTypeTest fix

src/test/kotlin/com/aitrainer/api/test/CustomerTests.kt

@@ -13,7 +13,6 @@ class CustomerTests {
 
     @Autowired
     private lateinit var customerRepository: CustomerRepository
-    private val customerId: Long = 4
     private var insertedId: Long? = null
 
     @Test

src/test/kotlin/com/aitrainer/api/test/ExerciseTypeTest.kt

@@ -11,8 +11,6 @@ import kotlin.test.assertEquals
 class ExerciseTypeTest {
 
     @Autowired
-    private val exerciseTypeId: Long = 4
-    private var insertedId: Long? = null
     private lateinit var exerciseTypeRepository: ExerciseTypeRepository
 
     @Test
@@ -26,7 +24,7 @@ class ExerciseTypeTest {
         val savedEx: ExerciseType = exerciseTypeRepository.save(newEx)
         assertEquals(savedEx.name, "Húzodszkodás")
 
-        this.insertedId = savedEx.exerciseTypeId
+        val insertedId: Long = savedEx.exerciseTypeId
 
         val extype: ExerciseType = exerciseTypeRepository.findById( savedEx.exerciseTypeId ).orElse(null)
         assertEquals( extype.name, "Húzodszkodás")