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cunīcu is written almost completely in Go and heavily relies on awesome tooling and packages for Golang:

  • GoReleaser for release automation
  • Ginkgo and Gomega for testing
  • Pion for its ICE, STUN, TURN implementation
  • Gont for end-to-end testing in various network topologies

Furthermore use the following services to manage our development:

  • GitHub for source code management and CI pipelines
  • Codacy for code quality checks
  • Codecov for code coverage analysis


We aim to maintain a test coverage above 80% of the lines of code. Please make sure that your merge requests include tests which do not lower the coverage percentage.

cunīcu's code-base is tested using the Ginkgo/Gomega testing framework. Unit tests can be found alongside the code in files with a _test.go suffix. End-to-end (e2e) integration tests can be found in the test/e2e directory.

The e2e tests use Gont to construct virtual network environment using Linux's net namespaces and veth point-to-point links. This allows us to test cunīcu in both simple and complex network topologies including, L2 switches, L3 routers, firewalls and NAT boxes.