unit test customer table

src/main/kotlin/com/aitrainer/api/model/Customer.kt

@@ -1,7 +1,5 @@
 package com.aitrainer.api.model
 
-import com.aitrainer.api.enums.SexEnum
-
 import javax.persistence.Entity
 import javax.persistence.GeneratedValue
 import javax.persistence.GenerationType
@@ -11,13 +9,13 @@ import javax.validation.constraints.NotBlank
 @Entity
 data class Customer (
         @get: NotBlank
-        val name: String = "",
         
-        val firstname: String,
-        val email: String,
-        val age: Int,
-        val sex: String,
+        val name: String = "",        
+        val firstname: String = "",
+        val email: String = "",
+        val age: Int = 0,
+        val sex: String = "m",
         
         @Id @GeneratedValue(strategy = GenerationType.IDENTITY)
-        val customer_id: Long? = null
+        val customer_id: Long = 0
 )