/
testenv.go
142 lines (118 loc) · 3.14 KB
/
testenv.go
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package testutil
import (
"context"
"fmt"
"os"
"path"
"path/filepath"
"strings"
"github.com/vladimirvivien/gexe"
"sigs.k8s.io/controller-runtime/pkg/envtest"
"sigs.k8s.io/e2e-framework/klient"
"sigs.k8s.io/e2e-framework/pkg/env"
"sigs.k8s.io/e2e-framework/pkg/envconf"
)
const (
localBinRelativePath = "../../bin"
envtestBin = "setup-envtest"
)
type testEnvKey struct{}
func SetupEnvTest() env.Func {
return func(ctx context.Context, c *envconf.Config) (context.Context, error) {
testEnv := &envtest.Environment{}
e := gexe.New()
version := getK8sVersionForEnvtest()
assetsPath, err := findOrInstallTestEnv(e, version)
if err != nil {
return ctx, err
}
if err := os.Setenv("KUBEBUILDER_ASSETS", assetsPath); err != nil {
return ctx, err
}
cfg, err := testEnv.Start()
if err != nil {
return ctx, err
}
client, err := klient.New(cfg)
if err != nil {
return ctx, err
}
c.WithClient(client)
ctx = context.WithValue(ctx, testEnvKey{}, testEnv)
return ctx, nil
}
}
func StopEnvTest() env.Func {
return func(ctx context.Context, c *envconf.Config) (context.Context, error) {
if err := os.Unsetenv("KUBEBUILDER_ASSETS"); err != nil {
return ctx, err
}
testEnv, ok := ctx.Value(testEnvKey{}).(*envtest.Environment)
if !ok {
return ctx, fmt.Errorf("invalid environment in context")
}
return ctx, testEnv.Stop()
}
}
func findOrInstallTestEnv(e *gexe.Echo, k8sVersion string) (string, error) {
setupEnvCommand := getSetupEnvPath()
if setupEnvCommand == "" {
var err error
if setupEnvCommand, err = installTestEnv(e); err != nil {
return "", err
}
}
localBin, err := getLocalBin()
if err != nil {
return "", err
}
p := e.RunProc(fmt.Sprintf("%s use -p path --bin-dir %s %s", setupEnvCommand, localBin, k8sVersion))
if p.Err() != nil {
return "", fmt.Errorf("failed to use envtest at version %s: %s", k8sVersion, p.Err())
}
return p.Result(), nil
}
func installTestEnv(e *gexe.Echo) (string, error) {
localBin, err := getLocalBin()
if err != nil {
return "", err
}
p := e.
SetEnv("GOBIN", localBin).
RunProc("go install sigs.k8s.io/controller-runtime/tools/setup-envtest@latest")
if p.Err() != nil {
return "", fmt.Errorf("failed to install setup-envtest: %s", p.Err())
}
setupEnvPath := getSetupEnvPath()
if setupEnvPath != "" {
return setupEnvPath, nil
}
return "", fmt.Errorf("setup-envtest not available even after installation")
}
func getLocalBin() (string, error) {
localPath, err := filepath.Abs(localBinRelativePath)
if err != nil {
return "", err
}
return localPath, nil
}
func getSetupEnvPath() string {
localBin, err := getLocalBin()
if err != nil {
return ""
}
envtestBinPath := path.Join(localBin, envtestBin)
if _, err := os.Stat(envtestBinPath); err == nil {
return envtestBinPath
}
return ""
}
const lengthOfSemverVersionWithPatches = 3
func getK8sVersionForEnvtest() string {
version, _ := os.LookupEnv(kindVersionVariableName)
splitVersion := strings.Split(strings.TrimLeft(version, "v"), ".")
if len(splitVersion) < lengthOfSemverVersionWithPatches {
return version
}
return fmt.Sprintf("%s.%s", splitVersion[0], splitVersion[1])
}