Testing

Basics

• Run all tests: To execute the entire test suite in your local development environment, run

  make test               # to run unit-tests
  make test-integration   # to run integration/"acceptance" tests
  

  These make targets are a convenient way to invoke the actual build and test tool, bazel. See the Makefile for the definition of the targets. The referenced bazel --config are defined in .bazelrc.

• Unit tests for individual go packages: To run tests for individual go packages, like for example pkg/snet, invoke bazel test directly and specify the test as a bazel target:

  bazel test --config=unit //pkg/snet:go_default_test # unit test for exactly pkg/snet
  bazel test --config=unit //pkg/snet/...             # unit tests for all packages under pkg/snet
  

• Run individual go test cases: Use the --test_filter=<regex> option to filter on the level of individual test cases.

  bazel test --config=unit //pkg/snet:go_default_test --test_filter=TestPacketSerializeDecodeLoop
  

• Useful bazel test flags: Finding a flag in the bazel command line reference can be tricky, so here are some pointers:

  • --nocache_test_results / -t-: disable the default caching of test results, to force rerunning them.

  • --test_output=streamed: show all test output

  • --test_arg=...: Pass flags to the go testing infrastructure.

    For example, instead of the --test_filter=<regex> mentioned above we could also filter tests with --test_arg=-test.run=<regex>. This can be used to run benchmarks.

Advanced

• Buildkite Continuous Integration
• Go mocks
• Golden Files
• Cryptography Testing
• Hidden Paths testing
• Integration/Acceptence Tests (README)