add tests for enum schema types

Author: Artur Kraft

test/services/schema-object-factory.spec.ts

@@ -1,9 +1,10 @@
 import { ApiExtension, ApiProperty } from '../../lib/decorators';
-import { SchemasObject } from '../../lib/interfaces/open-api-spec.interface';
+import { BaseParameterObject, SchemasObject } from '../../lib/interfaces/open-api-spec.interface';
 import { ModelPropertiesAccessor } from '../../lib/services/model-properties-accessor';
 import { SchemaObjectFactory } from '../../lib/services/schema-object-factory';
 import { SwaggerTypesMapper } from '../../lib/services/swagger-types-mapper';
 import { CreateUserDto } from './fixtures/create-user.dto';
+import { ParamWithTypeMetadata } from '../../lib/services/parameter-metadata-accessor';
 
 describe('SchemaObjectFactory', () => {
   let modelPropertiesAccessor: ModelPropertiesAccessor;
@@ -328,4 +329,44 @@ describe('SchemaObjectFactory', () => {
       expect(schemas).toEqual({ MyEnum: { enum: [1, 2, 3], type: 'number' } });
     });
   });
+
+  describe('createEnumParam', () => {
+    it('should create an enum schema definition', () => {
+      const params: ParamWithTypeMetadata & BaseParameterObject = {
+        required: true,
+        isArray: false,
+        enumName: 'MyEnum',
+        enum: ['a', 'b', 'c']
+      }
+      const schemas = {};
+      schemaObjectFactory.createEnumParam(params, schemas)
+
+      expect(schemas['MyEnum']).toEqual({
+        enum: ['a', 'b', 'c'],
+        type: 'string'
+      })
+    })
+
+    it('should create an enum schema definition for an array', () => {
+      const params: ParamWithTypeMetadata & BaseParameterObject = {
+        required: true,
+        isArray: true,
+        enumName: 'MyEnum',
+        schema: {
+          type: 'array',
+          items: {
+            type: 'string',
+            enum: ['a', 'b', 'c']
+          }
+        }
+      }
+      const schemas = {};
+      schemaObjectFactory.createEnumParam(params, schemas)
+
+      expect(schemas['MyEnum']).toEqual({
+        enum: ['a', 'b', 'c'],
+        type: 'string'
+      })
+    })
+  })
 });