Validate API against schema

spec/fixtures/api/schemas/public_api/v4/project_repository_storage_move.json

+{
+  "type": "object",
+  "required": [
+    "id",
+    "created_at",
+    "state",
+    "source_storage_name",
+    "destination_storage_name",
+    "project"
+  ],
+  "properties" : {
+    "id": { "type": "integer" },
+    "created_at": { "type": "date" },
+    "state": { "type": "string" },
+    "source_storage_name": { "type": "string" },
+    "destination_storage_name": { "type": "string" },
+    "project": { "type": "object" }
+  },
+  "additionalProperties": false
+}

spec/fixtures/api/schemas/public_api/v4/project_repository_storage_moves.json

+{
+  "type": "array",
+  "items": {
+    "$ref": "./project_repository_storage_move.json"
+  }
+}

spec/requests/api/project_repository_storage_moves_spec.rb

@@ -16,7 +16,7 @@ describe API::ProjectRepositoryStorageMoves do
 
       expect(response).to have_gitlab_http_status(:ok)
       expect(response).to include_pagination_headers
-      expect(json_response).to be_an Array
+      expect(response).to match_response_schema('public_api/v4/project_repository_storage_moves')
       expect(json_response.size).to eq(1)
       expect(json_response.first['id']).to eq(storage_move.id)
       expect(json_response.first['state']).to eq(storage_move.human_state_name)
@@ -36,7 +36,7 @@ describe API::ProjectRepositoryStorageMoves do
       get api("/project_repository_storage_moves/#{storage_move.id}", user)
 
       expect(response).to have_gitlab_http_status(:ok)
-      expect(json_response).to be_a Hash
+      expect(response).to match_response_schema('public_api/v4/project_repository_storage_move')
       expect(json_response['id']).to eq(storage_move.id)
       expect(json_response['state']).to eq(storage_move.human_state_name)
     end