Test workflow (SALib/SALib)

The Test workflow from SALib/SALib, explained and optimized by Latchkey.

CI health: B - good

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Source: SALib/SALib.github/workflows/test.ymlLicense MITView source

What it does

This is the Test workflow from the SALib/SALib repository, a real project running GitHub Actions. It is shown here with attribution under its MIT license.

Below, Latchkey shows a faster, safer version produced by its optimization engine.

The workflow

workflow (.yml)

name: Test

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

concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

jobs:
  pytest:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        python-version: ['3.10', '3.12', '3.14']
    defaults:
      run:
        shell: bash -l {0}
    steps:
      - uses: actions/checkout@v3

      - name: Set up conda
        uses: conda-incubator/setup-miniconda@v3
        with:
          activate-environment: SALib
          python-version: ${{ matrix.python-version }}
          channels: conda-forge
          miniforge-version: latest
          use-mamba: true
          channel-priority: true

      - name: Get Date
        id: get-date
        run: echo "::set-output name=month::$(/bin/date -u '+%Y%m')"
        shell: bash

      - name: Cache conda
        uses: actions/cache@v3
        env:
          # Increase this value to reset cache if environment.yml has not changed
          CACHE_NUMBER: 0
        with:
          path: ${{ env.CONDA }}/envs/SALib
          key:
            ${{ runner.os }}--${{ steps.get-date.outputs.month }}-conda-${{ env.CACHE_NUMBER }}-${{ hashFiles('environment.yml') }}
        id: envcache

      - name: Update Conda Environment
        run: |
          mamba env update -n SALib -f environment.yml
        if: steps.envcache.outputs.cache-hit != 'true'

      - name: Install package
        run: |
          conda activate SALib
          pip install .[test]

      - name: Test
        if: matrix.python-version != '3.12'
        run: |
          conda activate SALib
          pytest

      - name: Test with coverage and uploads
        if: matrix.python-version == '3.12'
        run: |
          conda activate SALib
          python -m pip install coveralls
          pytest --cov SALib --cov-report html --verbose
          coveralls

The same workflow, on Latchkey

Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.

name: Test
 
on:
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]
 
concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true
 
jobs:
  pytest:
    timeout-minutes: 30
    runs-on: latchkey-small
    strategy:
      matrix:
        python-version: ['3.10', '3.12', '3.14']
    defaults:
      run:
        shell: bash -l {0}
    steps:
      - uses: actions/checkout@v3
 
      - name: Set up conda
        uses: conda-incubator/setup-miniconda@v3
        with:
          activate-environment: SALib
          python-version: ${{ matrix.python-version }}
          channels: conda-forge
          miniforge-version: latest
          use-mamba: true
          channel-priority: true
 
      - name: Get Date
        id: get-date
        run: echo "::set-output name=month::$(/bin/date -u '+%Y%m')"
        shell: bash
 
      - name: Cache conda
        uses: actions/cache@v3
        env:
          # Increase this value to reset cache if environment.yml has not changed
          CACHE_NUMBER: 0
        with:
          path: ${{ env.CONDA }}/envs/SALib
          key:
            ${{ runner.os }}--${{ steps.get-date.outputs.month }}-conda-${{ env.CACHE_NUMBER }}-${{ hashFiles('environment.yml') }}
        id: envcache
 
      - name: Update Conda Environment
        run: |
          mamba env update -n SALib -f environment.yml
        if: steps.envcache.outputs.cache-hit != 'true'
 
      - name: Install package
        run: |
          conda activate SALib
          pip install .[test]
 
      - name: Test
        if: matrix.python-version != '3.12'
        run: |
          conda activate SALib
          pytest
 
      - name: Test with coverage and uploads
        if: matrix.python-version == '3.12'
        run: |
          conda activate SALib
          python -m pip install coveralls
          pytest --cov SALib --cov-report html --verbose
          coveralls

What changed

Run on Latchkey managed runners with one line (runs-on), which apply the fixes below automatically and self-heal transient failures. This example uses latchkey-small; pick the runner size that fits the job.
Add a job timeout so a hung step cannot burn hours of runner time.

1 third-party action is referenced by a movable tag. Pin it to the commit SHA (Latchkey resolves and applies this automatically) so a repointed tag cannot change what runs.

What Latchkey heals here

This workflow has steps that commonly fail on transient issues (network, registries, flaky browsers). On Latchkey managed runners they are detected, retried, and self-healed instead of failing your build:

Dependency installs

This workflow runs 1 job (3 with the matrix expanded) per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow

actions/checkout actions/cache