swagger-editor

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Q&A

• OS: macOS]
• Browser: chrome
• Version: 95
• Method of installation: Online at editor.swagger.io
• Swagger-Editor version: I couldn't find the version online that you're using I assume it's the latest as of Nov 16th, 2021
• Swagger/OpenAPI version: OpenAPI 3.0

Content & configuration

Example Swagger/OpenAPI definition:

openapi: "3.0.1"
info:
  title: random api
  version: "1"
paths:
  /user:
    get:
      responses:
        '201':
          description: successful operation
          content:
            application/json:
              schema:
                oneOf:
                  - $ref: "#/components/schemas/User"
                  - $ref: "#/components/schemas/Employee" #<--- this lines throws error
                discriminator:
                  propertyName: objectType
                  mappings:
                    user: "#/components/schemas/User"
                    employee: "#/components/schemas/Employee" #<--- this line should also throw error but doesn't
components:
  schemas:
    User:
      type: "object"
      properties:
        name:
          type: "string"

Describe the bug you're encountering

The above, when linted in swagger editor correctly reports: $refs must reference a valid location in the document. However I expect another error to be reported when specifying an invalid location in a mappings key (Line 21).

To reproduce...

Steps to reproduce the behavior:

1. Copy Paste into Swagger editor