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name: OTNS

on:
  push:
    branches-ignore:
      - 'dependabot/**'
  pull_request:
    branches:
      - 'main'

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || (github.repository == 'openthread/openthread' && github.run_id) || github.ref }}
  cancel-in-progress: true

env:
  COVERAGE: 1
  REFERENCE_DEVICE: 1
  VIRTUAL_TIME: 1
  VIRTUAL_TIME_UART: 1
  MAX_NETWORK_SIZE: 999
  PR_BODY: "${{ github.event.pull_request.body }}"

permissions:  # added using https://github.com/step-security/secure-workflows
  contents: read

jobs:

  unittests:
    name: Unittests
    runs-on: ubuntu-24.04
    steps:
    - name: Harden Runner
      uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
      with:
        egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs

    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
      with:
        submodules: recursive
        persist-credentials: false
    - uses: actions/setup-go@924ae3a1cded613372ab5595356fb5720e22ba16 # v6.5.0
      with:
        go-version: "1.23"
    - name: Set up Python
      uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
      with:
        python-version: "3.9"
    - name: Bootstrap
      timeout-minutes: 10
      run: |
        sudo apt-get update
        sudo apt-get --no-install-recommends install -y lcov ninja-build
    - name: Run
      run: |
        export OT_DIR=$PWD
        ./script/git-tool clone --depth 1 https://github.com/openthread/ot-ns.git /tmp/otns
        (
          cd /tmp/otns
          ./script/test py-unittests
        )
    - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
      if: ${{ failure() }}
      with:
        name: unittests-pcaps
        path: |
          ./output/*/bin/*.pcap
          ./output/*/bin/*.replay
    - name: Generate Coverage
      run: |
        ./script/test generate_coverage gcc
    - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
      with:
        name: cov-otns-unittests
        path: tmp/coverage.info
        retention-days: 1

  examples:
    name: Examples
    runs-on: ubuntu-24.04
    steps:
      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
        with:
          submodules: recursive
          persist-credentials: false
      - uses: actions/setup-go@924ae3a1cded613372ab5595356fb5720e22ba16 # v6.5.0
        with:
          go-version: "1.23"
      - name: Set up Python
        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
        with:
          python-version: "3.9"
      - name: Bootstrap
        timeout-minutes: 10
        run: |
          sudo apt-get update
          sudo apt-get --no-install-recommends install -y lcov ninja-build
      - name: Run
        run: |
          export OT_DIR=$PWD
          ./script/git-tool clone --depth 1 https://github.com/openthread/ot-ns.git /tmp/otns
          (
            cd /tmp/otns
            ./script/test py-examples
          )
      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        if: ${{ failure() }}
        with:
          name: examples-pcaps
          path: |
            ./output/*/bin/*.pcap
            ./output/*/bin/*.replay
      - name: Generate Coverage
        run: |
          ./script/test generate_coverage gcc
      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        with:
          name: cov-otns-examples
          path: tmp/coverage.info

  stress-tests:
    name: Stress ${{ matrix.suite }}
    runs-on: ubuntu-24.04
    strategy:
      fail-fast: false
      matrix:
        include:
          - suite: "network-forming"
            stress_level: 8
          - suite: "commissioning"
            stress_level: 14
          - suite: "connectivity"
            stress_level: 6
          - suite: "network-latency"
            stress_level: 10
          - suite: "multicast-performance"
            stress_level: 10
          - suite: "otns-performance"
            stress_level: 10
    env:
      STRESS_LEVEL: ${{ matrix.stress_level }}
    steps:
      - name: Harden Runner
        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
        with:
          egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs

      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
        with:
          submodules: recursive
          persist-credentials: false
      - uses: actions/setup-go@924ae3a1cded613372ab5595356fb5720e22ba16 # v6.5.0
        with:
          go-version: "1.23"
      - name: Set up Python
        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
        with:
          python-version: "3.9"
      - name: Bootstrap
        timeout-minutes: 10
        run: |
          sudo apt-get update
          sudo apt-get --no-install-recommends install -y lcov ninja-build
      - name: Run
        run: |
          export OT_DIR=$PWD
          ./script/git-tool clone --depth 1 https://github.com/openthread/ot-ns.git /tmp/otns
          (
            cd /tmp/otns
            ./script/test stress-tests ${{ matrix.suite }}
          )
      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        if: ${{ failure() }}
        with:
          name: stress-tests-${{ matrix.suite }}-pcaps
          path: |
            ./output/*/bin/*.pcap
            ./output/*/bin/*.replay
      - name: Generate Coverage
        run: |
          ./script/test generate_coverage gcc
      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        with:
          name: cov-otns-stress-tests-${{ matrix.suite }}
          path: tmp/coverage.info
          retention-days: 1

  upload-coverage:
    needs:
      - unittests
      - examples
      - stress-tests
    runs-on: ubuntu-24.04
    steps:
      - name: Harden Runner
        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
        with:
          egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs

      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
        with:
          submodules: recursive
          persist-credentials: false
      - name: Bootstrap
        timeout-minutes: 10
        run: |
          sudo apt-get --no-install-recommends install -y lcov
      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        with:
          path: coverage/
          pattern: cov-*
      - name: Combine Coverage
        run: |
          script/test combine_coverage
      - name: Upload Coverage
        uses: codecov/codecov-action@fb8b3582c8e4def4969c97caa2f19720cb33a72f # v7.0.0
        env:
          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
        with:
          files: final.info
          fail_ci_if_error: true