Deployment Operator

Testing Local Changes to Dependencies

Using Go Work

I'm updating the polly for the .tpl template rendering
Clone the polly repo locally
Create a Go Workspace In the repo that has polly as a dependency

cd ~/git/plrl
git clone [email protected]:pluralsh/polly.git
cd deployment-operator 
go work init .

This creates a go workspace file named go.work in the deployment-operator repo
Tell go to use the locally cloned version of the polly repo

go use ../polly

My go.work file now looks like this

// ./go.work

go 1.22.2

use (
	.
	../polly
)

Now the Go Workspace settings will allow me to use the local version of the polly source code when compiling and testing

Helm Chart Tests

To test that the deployment-operator Helm chart can be successfully installed, run:

./test/helm/test-chart-install.sh

This script will:

1. Create a temporary Kind cluster
2. Validate the chart using helm lint
3. Verify template rendering with helm template
4. Perform a dry-run installation with helm install --dry-run
5. Automatically clean up the cluster when the test completes

See test/helm/README.md for more details.

Unit Tests

Pre Reqs

Ensure that the cluster in your current kube context is reachable

Helm tests will run against this cluster
You can test with:

kubectl cluster-info

Install dependencies with make

make tools

Setup Environment

Set the KUBEBUILDER_ASSETS directory

# Mac
export KUBEBUILDER_ASSETS=${GOBIN}/k8s/1.28.3-darwin-arm64

# Linux
export KUBEBUILDER_ASSETS=${GOBIN}/k8s/1.28.3-linux-amd64

Running Unit Tests

make test

Adding Tests

Reference the Ginkgo Getting Started to see the expected structure

Install the Ginkgo CLI

go install github.com/onsi/ginkgo/v2/ginkgo

The Test Suites for several Packages are already Generated in the Deployment-Operator Repo

If creating a new package or testing a package that doesn't already have a test suite

cd pkg/package/that/needs/suite
ginkgo bootstrap

Generate A Basic test

I'm creating a test for ./pkg/manifests/template/tpl.go

cd ./pkg/manifests/template
ginkgo generate tpl

example output

Generating ginkgo test for Tpl in:
  tpl_test.go

It generates: ./pkg/manifests/template/tpl_test.go

# ./pkg/manifests/template/tpl_test.go
package template_test

import (
	. "github.com/onsi/ginkgo/v2"
	. "github.com/onsi/gomega"

	"github.com/pluralsh/deployment-operator/pkg/manifests/template"
)

var _ = Describe("Tpl", func() {

})

From here you can begin adding specs (test) to your generated file

# ./pkg/manifests/template/tpl_test.go
var _ = Describe("Tpl", func() {

	Context("Example Test", func() {
		It("Should always Pass", func() {
			Expect(1).To(Equal(1))
		})
	})

    Context("Test Should Fail for example output", func() {
		It("Should always fail", func() {
			Expect(1).To(Equal(2))
		})
	})

})

Run the Suite with your New Test

I'm doing this here just for an example and to check that my tests are bing added to the Suite

make test
# ... other output

[GIN-debug] GET    /version                  --> github.com/pluralsh/deployment-operator/pkg/manifests/template.init.func1.1 (3 handlers)
Running Suite: Controller Suite - /Users/kjj/git/plrl/deployment-operator/pkg/manifests/template
================================================================================================
Random Seed: 1715288079

Will run 6 of 6 specs
# Warning: 'bases' is deprecated. Please use 'resources' instead. Run 'kustomize edit fix' to update your Kustomization automatically.
# Warning: 'patchesStrategicMerge' is deprecated. Please use 'patches' instead. Run 'kustomize edit fix' to update your Kustomization automatically.
••
------------------------------
• [FAILED] [0.000 seconds]
Tpl Test Should Fail for example output [It] Should always Fail
/Users/kjj/git/plrl/deployment-operator/pkg/manifests/template/tpl_test.go:17

  [FAILED] Expected
      <int>: 1
  to equal
      <int>: 2
  In [It] at: /Users/kjj/git/plrl/deployment-operator/pkg/manifests/template/tpl_test.go:18 @ 05/09/24 16:54:41.29
------------------------------
2024/05/09 16:54:41 render helm templates: enable dependency update= false dependencies= 0
Found unknown types unknown resource types: apiextensions.k8s.io/v1/CustomResourceDefinition,apiextensions.k8s.io/v1/CustomResourceDefinition, ignoring for now2024/05/09 16:54:41 Server exiting
•••

Summarizing 1 Failure:
  [FAIL] Tpl Test Should Fail for example output [It] Should always Fail
  /Users/kjj/git/plrl/deployment-operator/pkg/manifests/template/tpl_test.go:18

Ran 6 of 6 Specs in 2.810 seconds
FAIL! -- 5 Passed | 1 Failed | 0 Pending | 0 Skipped
--- FAIL: TestControllers (2.81s)
FAIL
FAIL    github.com/pluralsh/deployment-operator/pkg/manifests/template  3.421s
FAIL
make: *** [test] Error 1