improve plain object handling

Author: sebbi08

src/swagger/generator.ts

@@ -433,7 +433,8 @@ export class SpecGenerator {
     private getSwaggerTypeForObjectType(objectType: ObjectType): Schema {
         return {
             type: "object",
-            properties: this.buildProperties(objectType.properties)
+            properties: this.buildProperties(objectType.properties),
+            required: objectType.properties.filter((p) => p.required).map((p) => p.name)
         };
     }
 

test/unit/definitions.spec.ts

@@ -544,6 +544,7 @@ describe("Definition generation", () => {
             expect(typeSpec.properties.b).toBeDefined();
             expect(typeSpec.properties.a.type).toEqual("string");
             expect(typeSpec.properties.b.type).toEqual("number");
+            expect(typeSpec.required).toEqual(["a", "b"]);
         });
     });