add test to enforce that we always have builtin schemas for linked k8…

…s version

pkg/openapiclient/hardcoded_builtins.go

@@ -15,6 +15,20 @@ import (
 //go:embed builtins
 var hardcodedBuiltins embed.FS
 
+var HardcodedBuiltinVersions []string = func() []string {
+	versions, err := hardcodedBuiltins.ReadDir("builtins")
+	if err != nil {
+		panic(err)
+	}
+
+	res := make([]string, 0, len(versions))
+	for _, v := range versions {
+		res = append(res, v.Name())
+	}
+
+	return res
+}()
+
 // client which provides hardcoded openapi for known k8s versions
 type hardcodedResolver struct {
 	version string

pkg/openapiclient/hardcoded_builtins_test.go

@@ -0,0 +1,44 @@
+package openapiclient_test
+
+import (
+	"fmt"
+	"os/exec"
+	"strings"
+	"testing"
+
+	"k8s.io/apimachinery/pkg/util/version"
+	"sigs.k8s.io/kubectl-validate/pkg/openapiclient"
+)
+
+var LinkedK8sVersion *version.Version = func() *version.Version {
+	cmd := exec.Command("go", "list", "-m", "-mod=mod", "-f", "{{if eq .Path \"k8s.io/api\"}}{{.Version}}{{end}}", "all")
+	cmd.Dir = ""
+	out, err := cmd.Output()
+	if err != nil {
+		panic(err)
+	}
+
+	return version.MustParseSemantic(strings.TrimSpace(string(out)))
+}()
+
+func TestHasUptoDateBuiltinSchemas(t *testing.T) {
+	t.Log(LinkedK8sVersion)
+
+	if LinkedK8sVersion.Major() != 0 {
+		t.Fatalf("Major version of linked k8s.io/api is not 0: %v", LinkedK8sVersion)
+	}
+
+	for i := 23; i <= int(LinkedK8sVersion.Minor()); i++ {
+		found := false
+		for _, version := range openapiclient.HardcodedBuiltinVersions {
+			if version == "1."+fmt.Sprint(i) {
+				found = true
+				break
+			}
+		}
+
+		if !found {
+			t.Errorf("Missing builtin version v1.%d", i)
+		}
+	}
+}