How to test input that should fail for a custom GitHub action in a workflow?

Question

I have a custom GitHub action that encapsulates a linter using a Dockerfile. On push I want to verify that the linter works correctly, that is it should succeed on correct input and fail on incorrect input:

.github/workflows/test-action.yml

name: Test Action
 
on:
  workflow_dispatch:
  push:
    branches:
      - master
 
jobs:
  test-correct:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v2
      - name: Lint correct input
        uses: ./
        with:
          file: should-succeed.ex
  test-incorrect:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v2
      - name: Lint incorrect input
        uses: ./
        with:
          file: should-fail.ex

However on GitHub under e.g. https://github.com/myorg/myrepo/actions/runs/123456789 this will of course now color the successful job as green and the unsuccessful job as red. How can I tell GitHub to reverse the color so that a fail results in success and success results in failure?

Edit: I tried the following but it does not work, because then if: failure() will not trigger:

[...]
      - name: Lint incorrect input
        uses: ./
        continue-on-error: true
        with:
          file: should-fail.ex
      - if: failure()
        run: true
      - if: success()
        run: false

On the other hand if I remove the continue-on-error: true line, then it will not work either, because the whole job will be counted as failed even if I return true.

Answer 1

jobs:
  test-correct:
  [...]
  test-incorrect:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v2
      - name: This should fail
        id: lint-incorrect
        uses: ./
        continue-on-error: true
        with:
          file: should-fail.ex
      - name: Invert success and failure
        run: if [[ ${{ steps.lint-incorrect.outcome }} == "failure" ]]; then exit 0; else exit 1; fi

Using continue-on-error: true in combination with the outcome property, which does not change with continue-on-error, seems to do the trick. The only thing missing now is that I only want report exit code 2 (validation error) as success while keeping exit code 1 (runtime error) as error but this does not seem to be achievable with this method.