suite_test.go

/*
MIT License

Copyright (c) 2023 mercari

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

*/

package controller

import (
	"fmt"
	"os"
	"path/filepath"
	"strings"
	"testing"
	"time"

	appv1 "k8s.io/api/apps/v1"
	v2 "k8s.io/api/autoscaling/v2"
	"k8s.io/apimachinery/pkg/runtime"
	v1 "k8s.io/autoscaler/vertical-pod-autoscaler/pkg/apis/autoscaling.k8s.io/v1"
	"k8s.io/client-go/rest"
	"k8s.io/utils/ptr"
	"sigs.k8s.io/controller-runtime/pkg/client"
	"sigs.k8s.io/controller-runtime/pkg/envtest"
	logf "sigs.k8s.io/controller-runtime/pkg/log"
	"sigs.k8s.io/controller-runtime/pkg/log/zap"

	autoscalingv1beta3 "github.com/mercari/tortoise/api/v1beta3"

	. "github.com/onsi/ginkgo/v2"
	. "github.com/onsi/gomega"
)

// These tests use Ginkgo (BDD-style Go testing framework). Refer to
// http://onsi.github.io/ginkgo/ to learn more about Ginkgo.

var cfg *rest.Config
var k8sClient client.Client
var testEnv *envtest.Environment
var scheme = runtime.NewScheme()

func TestAPIs(t *testing.T) {
	RegisterFailHandler(Fail)

	SetDefaultEventuallyTimeout(10 * time.Second)
	SetDefaultEventuallyPollingInterval(100 * time.Millisecond)
	SetDefaultConsistentlyDuration(3 * time.Second)
	SetDefaultConsistentlyPollingInterval(100 * time.Millisecond)
	RunSpecs(t, "Controller Suite")
}

var _ = BeforeSuite(func() {
	logf.SetLogger(zap.New(zap.WriteTo(GinkgoWriter), zap.UseDevMode(true)))

	By("bootstrapping test environment")
	testEnv = &envtest.Environment{
		CRDDirectoryPaths:     []string{filepath.Join("..", "..", "config", "crd", "bases"), filepath.Join("testdata", "crd")},
		ErrorIfCRDPathMissing: true,
	}

	var err error
	// cfg is defined in this file globally.
	cfg, err = testEnv.Start()
	Expect(err).NotTo(HaveOccurred())
	Expect(cfg).NotTo(BeNil())

	err = autoscalingv1beta3.AddToScheme(scheme)
	Expect(err).NotTo(HaveOccurred())
	err = v1.AddToScheme(scheme)
	Expect(err).NotTo(HaveOccurred())
	err = appv1.AddToScheme(scheme)
	Expect(err).NotTo(HaveOccurred())
	err = v2.AddToScheme(scheme)
	Expect(err).NotTo(HaveOccurred())

	//+kubebuilder:scaffold:scheme

	k8sClient, err = client.New(cfg, client.Options{Scheme: scheme})
	Expect(err).NotTo(HaveOccurred())
	Expect(k8sClient).NotTo(BeNil())

	// fix a time to reduce the diff when regenerating the files.
	onlyTestNow = ptr.To(time.Date(2023, 1, 1, 0, 0, 0, 0, time.UTC))
})

var suiteFailed = false

var _ = AfterSuite(func() {
	By("tearing down the test environment")

	if os.Getenv("DEBUG") == "true" && suiteFailed {
		fmt.Printf(`
You can use the following command to investigate the failure:
$ kubectl %s
When you have finished investigation, clean up with the following commands:
$ pkill kube-apiserver
$ pkill etcd
$ rm -rf %s
`, strings.Join(testEnv.ControlPlane.KubeCtl().Opts, " "), testEnv.ControlPlane.APIServer.CertDir) //nolint:staticcheck

		return
	}

	err := testEnv.Stop()
	Expect(err).NotTo(HaveOccurred())
})