backend-tests.yml

name: Backend Tests

on:
  pull_request:
    paths:
      - # Scripts, GitHub actions that contain 'backend' in their path.
        '**/*backend*'
      - # The backend source code
        'src/backend/**'
      - 'src/shared/**'
      - # Rust files such as Cargo.lock, Cargo.toml and rust-toolchain.toml
        '**/Cargo*'
      - '**/*rust*'
      - # The dockerfile used in this CI run, and the scripts it COPY's.
        'Dockerfile'
      - 'docker/**'
      - # There may be some files in frontend folder that contains 'backend' in their name.
        '!src/frontend/**'
  workflow_dispatch:

jobs:

  docker-build-base:
    runs-on: ubuntu-24.04
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Build Base Docker Image
        uses: ./.github/actions/docker-build-base

  docker-build:
    runs-on: ubuntu-24.04
    needs: docker-build-base
    strategy:
      matrix:
        include:
          - name: backend.wasm.gz
            target: scratch_backend

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Build canister WASM
        uses: ./.github/actions/docker-build-backend
        with:
          name: ${{ matrix.name }}
          target: ${{ matrix.target }}

  tests:
    runs-on: ubuntu-24.04
    needs: [ 'docker-build' ]
    steps:
      - uses: actions/checkout@v4

      - uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: ${{ runner.os }}-cargo-backend-tests-${{ hashFiles('Cargo.lock', 'rust-toolchain.toml') }}

      - name: Download backend.wasm.gz
        uses: actions/download-artifact@v4
        with:
          name: backend.wasm.gz
          path: .

      - name: "Run backend tests"
        working-directory: .
        run: ./scripts/test.backend.sh

  may-merge:
    needs: [ 'tests' ]
    runs-on: ubuntu-24.04
    steps:
      - name: Cleared for merging
        run: echo OK