fix: do not emit a type array in 3.1 when unnecessary

Signed-off-by: Vincent Biret <[email protected]>
microsoft · Jan 31, 2025 · 3b3d0e6 · 3b3d0e6
1 parent 920a51a
commit 3b3d0e6
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/src/Microsoft.OpenApi/Models/OpenApiSchema.cs b/src/Microsoft.OpenApi/Models/OpenApiSchema.cs
@@ -706,7 +706,14 @@ private void UpCastSchemaTypeToV31(JsonSchemaType type, IOpenApiWriter writer)
             var list = (from JsonSchemaType? flag in jsonSchemaTypeValues// Check if the flag is set in 'type' using a bitwise AND operation
                         where temporaryType.HasFlag(flag)
                         select flag.ToIdentifier()).ToList();
-            writer.WriteOptionalCollection(OpenApiConstants.Type, list, (w, s) => w.WriteValue(s));
+            if (list.Count > 1)
+            {
+                writer.WriteOptionalCollection(OpenApiConstants.Type, list, (w, s) => w.WriteValue(s));
+            }
+            else
+            {
+                writer.WriteProperty(OpenApiConstants.Type, list[0]);
+            }
         }
 
 #if NET5_0_OR_GREATER