adding tests and helper UX to schema

test/fixtures/classes.json

@@ -1,6 +1,7 @@
 {
     "CharacterClass": [
         {
+            "id": 1,
             "name": "fighter",
             "hit_dice": "1d10",
             "hit_dice_stat": "CON",
@@ -9,6 +10,7 @@
             "skills": ["Acrobatics", "Animal Handling", "Athletics", "History", "Insight", "Intimidation", "Perception", "Survival"]
         },
         {
+            "id": 2,
             "name": "rogue",
             "hit_dice": "1d8",
             "hit_dice_stat": "DEX",
@@ -16,5 +18,28 @@
             "saving_throws": ["DEX", "INT"],
             "skills": ["Acrobatics", "Athletics", "Deception", "Insight", "Intimidation", "Investigation", "Perception", "Performance", "Persuasion", "Sleight of Hand", "Stealth"]
         }
+    ],
+    "ClassAttribute": [
+        {
+            "id": 1,
+            "name": "Fighting Style"
+        }
+    ],
+    "ClassAttributeMap": [
+        {
+            "class_attribute_id": 1,
+            "character_class_id": 1,
+            "level": 2
+        }
+    ],
+    "ClassAttributeOption": [
+        {
+            "attribute_id": 1,
+            "name": "Archery"
+        },
+        {
+            "attribute_id": 1,
+            "name": "Battlemaster"
+        }
     ]
 }