How to set python test on cloudbuild.yaml

coudbuild.yaml

steps:
# Install modules
- name: 'python'
  entrypoint: pip
  args: [ "install", "-r", "requirements.txt", "--user" ]

# Run unit tests
- name: python
  args: ["python","-m","unittest"]
  id: unittest

# build docker image
- name: 'gcr.io/kaniko-project/executor:latest'
  args:
  - --destination=gcr.io/${PROJECT_ID}/build-test
  - --cache=true
  - --cache-ttl=24h