test-load-docker-image.yml

name: Test Load Docker Image Action

on:
  push:
    paths:
      - 'load-docker-image/**'
  pull_request:
    paths:
      - 'load-docker-image/**'
  workflow_dispatch:

jobs:
  test-load-docker-image:
    runs-on: ubuntu-latest
    
    steps:
    - name: Checkout repository
      uses: actions/checkout@v4
    
    - name: Pull and save a test Docker image
      run: |
        docker pull nginx:alpine
        docker save nginx:alpine -o nginx-alpine.tar
    
    - name: Upload test image as artifact
      uses: actions/upload-artifact@v4
      with:
        name: nginx-alpine.tar
        path: nginx-alpine.tar
        retention-days: 1
    
    - name: Remove local image to test loading
      run: docker rmi nginx:alpine
    
    - name: Test basic usage
      id: test-basic
      uses: ./load-docker-image
      with:
        artifact-name: 'nginx-alpine.tar'
        image-name: 'nginx'
        tag: 'alpine'
    
    - name: Verify basic test output
      run: |
        echo "Loaded image: ${{ steps.test-basic.outputs.loaded-image }}"
        echo "Image ID: ${{ steps.test-basic.outputs.image-id }}"
        echo "File size: ${{ steps.test-basic.outputs.file-size }}"
        
        # Verify image is loaded
        if ! docker images | grep -q "nginx.*alpine"; then
          echo "❌ Error: Image not loaded correctly"
          exit 1
        fi
        
        # Verify outputs are not empty
        if [ -z "${{ steps.test-basic.outputs.loaded-image }}" ]; then
          echo "❌ Error: loaded-image output is empty"
          exit 1
        fi
        
        if [ -z "${{ steps.test-basic.outputs.image-id }}" ]; then
          echo "❌ Error: image-id output is empty"
          exit 1
        fi
        
        if [ -z "${{ steps.test-basic.outputs.file-size }}" ]; then
          echo "❌ Error: file-size output is empty"
          exit 1
        fi
        
        echo "✅ Basic test passed"
    
    - name: Test custom image file location
      run: |
        # Create custom directory and save another image
        mkdir -p custom-path
        docker pull busybox:latest
        docker save busybox:latest -o custom-path/busybox.tar
    
    - name: Upload custom file test image
      uses: actions/upload-artifact@v4
      with:
        name: busybox.tar
        path: custom-path/busybox.tar
        retention-days: 1
    
    - name: Remove busybox image to test loading
      run: docker rmi busybox:latest
    
    - name: Test custom image-file usage
      id: test-custom
      uses: ./load-docker-image
      with:
        artifact-name: 'busybox.tar'
        image-file: './custom-download/busybox-custom.tar'
        image-name: 'busybox'
        tag: 'latest'
    
    - name: Verify custom image-file test
      run: |
        echo "Custom loaded image: ${{ steps.test-custom.outputs.loaded-image }}"
        
        # Verify busybox image is loaded
        if ! docker images | grep -q "busybox.*latest"; then
          echo "❌ Error: Custom image-file image not loaded correctly"
          exit 1
        fi
        
        # Verify the file was created at the specified location
        if [ ! -f "./custom-download/busybox-custom.tar" ]; then
          echo "❌ Error: Image file not found at specified location"
          exit 1
        fi
        
        echo "✅ Custom image-file test passed"
    
    - name: Test image verification
      run: |
        # Test that the loaded image works
        docker run --rm nginx:alpine nginx -v
        docker run --rm busybox:latest echo "BusyBox test successful"
        
        echo "✅ Image verification test passed"
    
    - name: Test summary
      run: |
        echo "## Test Results 🧪" >> $GITHUB_STEP_SUMMARY
        echo "" >> $GITHUB_STEP_SUMMARY
        echo "✅ Basic usage test: PASSED" >> $GITHUB_STEP_SUMMARY
        echo "✅ Custom image-file test: PASSED" >> $GITHUB_STEP_SUMMARY
        echo "✅ Image verification test: PASSED" >> $GITHUB_STEP_SUMMARY
        echo "" >> $GITHUB_STEP_SUMMARY
        echo "### Loaded Images" >> $GITHUB_STEP_SUMMARY
        echo "- Basic test: \`${{ steps.test-basic.outputs.loaded-image }}\` (ID: ${{ steps.test-basic.outputs.image-id }})" >> $GITHUB_STEP_SUMMARY
        echo "- Custom image-file test: \`${{ steps.test-custom.outputs.loaded-image }}\` (ID: ${{ steps.test-custom.outputs.image-id }})" >> $GITHUB_STEP_SUMMARY
        echo "" >> $GITHUB_STEP_SUMMARY
        echo "### File Details" >> $GITHUB_STEP_SUMMARY
        echo "- Basic test file size: ${{ steps.test-basic.outputs.file-size }} bytes" >> $GITHUB_STEP_SUMMARY
        echo "- Custom test file size: ${{ steps.test-custom.outputs.file-size }} bytes" >> $GITHUB_STEP_SUMMARY
        echo "" >> $GITHUB_STEP_SUMMARY
        echo "### Additional Tests" >> $GITHUB_STEP_SUMMARY
        echo "- Error handling test: See separate job" >> $GITHUB_STEP_SUMMARY
        echo "- Skip download test: See separate job" >> $GITHUB_STEP_SUMMARY

  test-error-handling:
    runs-on: ubuntu-latest
    
    steps:
    - name: Checkout repository
      uses: actions/checkout@v4
    
    - name: Test with non-existent artifact (should fail)
      id: test-error
      continue-on-error: true
      uses: ./load-docker-image
      with:
        artifact-name: 'non-existent-artifact'
    
    - name: Verify error handling
      run: |
        if [ "${{ steps.test-error.outcome }}" = "success" ]; then
          echo "❌ Error: Action should have failed with non-existent artifact"
          exit 1
        fi
        
        echo "✅ Error handling test passed - action correctly failed with non-existent artifact"

  test-skip-download:
    runs-on: ubuntu-latest
    
    steps:
    - name: Checkout repository
      uses: actions/checkout@v4
    
    - name: Create pre-existing image file
      run: |
        # Pull and save an image to simulate a pre-existing file
        docker pull alpine:latest
        mkdir -p ./pre-existing
        docker save alpine:latest -o ./pre-existing/alpine.tar
        docker rmi alpine:latest
    
    - name: Test skip download functionality
      id: test-skip-download
      uses: ./load-docker-image
      with:
        download: 'false'
        image-file: './pre-existing/alpine.tar'
        image-name: 'alpine'
        tag: 'latest'
    
    - name: Verify skip download test
      run: |
        echo "Skip download loaded image: ${{ steps.test-skip-download.outputs.loaded-image }}"
        
        # Verify alpine image is loaded
        if ! docker images | grep -q "alpine.*latest"; then
          echo "❌ Error: Skip download image not loaded correctly"
          exit 1
        fi
        
        # Verify outputs are not empty
        if [ -z "${{ steps.test-skip-download.outputs.loaded-image }}" ]; then
          echo "❌ Error: loaded-image output is empty"
          exit 1
        fi
        
        if [ -z "${{ steps.test-skip-download.outputs.image-id }}" ]; then
          echo "❌ Error: image-id output is empty"
          exit 1
        fi
        
        if [ -z "${{ steps.test-skip-download.outputs.file-size }}" ]; then
          echo "❌ Error: file-size output is empty"
          exit 1
        fi
        
        echo "✅ Skip download test passed"
    
    - name: Test skip download with missing file (should fail)
      id: test-skip-download-error
      continue-on-error: true
      uses: ./load-docker-image
      with:
        download: 'false'
        image-file: './non-existent/missing.tar'
    
    - name: Verify skip download error handling
      run: |
        if [ "${{ steps.test-skip-download-error.outcome }}" = "success" ]; then
          echo "❌ Error: Action should have failed with missing file when download=false"
          exit 1
        fi
        
        echo "✅ Skip download error handling test passed - action correctly failed with missing file"