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We follow the BDD-style testing principles and are leveraging the Ginkgo framework along with Gomega as matcher library. In order to execute the existing tests, you can use

make test         # runs tests
make verify       # runs static code checks and test

There is an additional command for analyzing the code coverage of the tests. Ginkgo will generate standard Golang cover profiles which will be translated into a HTML file by the Go Cover Tool. Another command helps you to clean up the filesystem from the temporary cover profile files and the HTML report:

make test-cov
open gardener.coverage.html
make test-cov-clean

Dependency Management

We are using go modules for depedency management. In order to add a new package dependency to the project, you can perform go get <PACKAGE>@<VERSION> or edit the go.mod file and append the package along with the version you want to use.

Updating Dependencies

The Makefile contains a rule called revendor which performs go mod vendor and go mod tidy. go mod vendor resets the main module’s vendor directory to include all packages needed to build and test all the main module’s packages. It does not include test code for vendored packages. go mod tidy makes sure go.mod matches the source code in the module. It adds any missing modules necessary to build the current module’s packages and dependencies, and it removes unused modules that don’t provide any relevant packages.

make revendor

The dependencies are installed into the vendor folder which should be added to the VCS.

:warning: Make sure that you test the code after you have updated the dependencies!