step-result.yaml

apiVersion: tekton.dev/v1beta1
kind: ClusterTask
metadata:
  name: result-task
spec:
  results:
  - name: sampleResult
    description: Result
  steps:
  - name: write-result
    image: gcr.io/google-containers/busybox:1.27
    script: |
      #!/bin/sh
      /bin/echo 'Result expected' > $(results.sampleResult.path)
      exit 1

---
apiVersion: tekton.dev/v1beta1
kind: TaskRun
metadata:
  name: result-task-run
spec:
  taskRef:
    kind: ClusterTask
    name: result-task