extend test case

Author: SudoBobo

test/local/union.result

@@ -0,0 +1,18 @@
+RESULT
+---
+hero_collection:
+- hero_type: human
+  hero_connection:
+    name: Luke
+  hero_id: hero_id_1
+...
+
+RESULT
+---
+hero_collection:
+- hero_type: starship
+  hero_connection:
+    model: Falcon-42
+  hero_id: hero_id_2
+...
+

test/testdata/union_testdata.lua

@@ -283,13 +283,13 @@ function union_testdata.run_queries(gql_wrapper)
         ('RESULT\n%s'):format(yaml.encode(result)))
     end)
 
-    --utils.show_trace(function()
-    --    local variables_2 = {hero_id = 'hero_id_2'}
-    --    local gql_query_2 = gql_wrapper:compile(query)
-    --    local result = gql_query_2:execute(variables_2)
-    --    results = results .. print_and_return(
-    --    ('RESULT\n%s'):format(yaml.encode(result)))
-    --end)
+    utils.show_trace(function()
+        local variables_2 = {hero_id = 'hero_id_2'}
+        local gql_query_2 = gql_wrapper:compile(query)
+        local result = gql_query_2:execute(variables_2)
+        results = results .. print_and_return(
+        ('RESULT\n%s'):format(yaml.encode(result)))
+    end)
 
     return results
 end