GO TEST FAST

A Golang test execution tool that prioritizes tests that have failed. Why run pipelines for several minutes just to reach the test that previously failed?

This tool lists all tests from the given package, prioritizing them in the following order:

1. Tests that have previously failed
2. New tests that were not present in the previous iteration
3. All other tests

Features

• Colored and human-readable output
• JSON output available for CI
• Caching of previously failing tests for prioritization
• Prioritizes new tests as well
• Coverage support

Usage

Go Run

go run github.com/sonalys/gotestfast/entrypoints/gotestfast@latest -help

  -coverprofile string
        If set, writes a coverage profile to the given file
  -input string
        Path to the Go project folder
  -json
        Output test results as JSON
  -output string
        Path to the output file (default "testlog.json")
  -pkg string
        Comma separated list of packages to test (default "./...")

Go Install

go install github.com/sonalys/gotestfast/entrypoints/gotestfast@latest

gotestfast -input PROJECT_DIR -output CACHE_FILE -pkg ./...

CI

For CI, please cache the CACHE_FILE for the configured -output parameter.
Also, set the -json flag for JSON logging.

Github Actions

As of the current moment, actions/cache@v4 save-always flag is not working. I am using a work-around with two separate steps, and if: always()

- name: Restore test-log cache
  uses: actions/cache/restore@v3
  with:
    path: testlog.json
    key: ${{ runner.os }}-testcache
    restore-keys: |
      ${{ runner.os }}-testcache

- name: Test
  run: make test

- name: Save test-log cache
  if: always()
  uses: actions/cache/save@v3
  with:
    path: testlog.json
    key: ${{ runner.os }}-testcache

Contributions

Any issues or ideas are welcome. Just create a new issue.