validate.yml

name: Validate Java Files

on:
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]

jobs:
  validate-calculator:
    name: "✅ Calculator"
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Compile Calculator
        run: javac src/Calculator.java

      - name: Validate Calculator output
        run: |
          OUTPUT=$(java -cp src Calculator)
          echo "$OUTPUT"

          echo "$OUTPUT" | grep -q "add(2, 3) = 5" || { echo "❌ add() failed"; exit 1; }
          echo "$OUTPUT" | grep -q "subtract(10, 3) = 7" || { echo "❌ subtract() failed"; exit 1; }

          echo "✅ Calculator: all checks passed"

  validate-greeting:
    name: "✅ Greeting"
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Compile Greeting
        run: javac src/Greeting.java

      - name: Validate Greeting output
        run: |
          OUTPUT=$(java -cp src Greeting)
          echo "$OUTPUT"

          echo "$OUTPUT" | grep -q "Hello, World!" || { echo "❌ greet() returned wrong message"; exit 1; }

          echo "✅ Greeting: all checks passed"

  validate-weather:
    name: "✅ Weather"
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Compile Weather
        run: javac src/Weather.java

      - name: Validate Weather output
        run: |
          OUTPUT=$(java -cp src Weather)
          echo "$OUTPUT"

          echo "$OUTPUT" | grep -q "35C is Hot"  || { echo "❌ 35C should be Hot"; exit 1; }
          echo "$OUTPUT" | grep -q "5C is Cold"  || { echo "❌ 5C should be Cold"; exit 1; }
          echo "$OUTPUT" | grep -q "20C is Mild" || { echo "❌ 20C should be Mild"; exit 1; }

          echo "✅ Weather: all checks passed"