test(admission): drop TestEscapeJSONPointer

The function lives in cocoon-common and is already covered by
k8s/admission/admission_test.go:TestEscapeJSONPointer there. No
reason to mirror the test in the webhook package.

Author: CMGS

admission/pod_mutator_test.go

@@ -10,7 +10,6 @@ import (
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/client-go/kubernetes/fake"
 
-	commonadmission "github.com/cocoonstack/cocoon-common/k8s/admission"
 	"github.com/cocoonstack/cocoon-common/meta"
 )
 
@@ -63,19 +62,6 @@ func TestPodNodePoolPrecedence(t *testing.T) {
 	}
 }
 
-func TestEscapeJSONPointer(t *testing.T) {
-	cases := map[string]string{
-		"vm.cocoonstack.io/name": "vm.cocoonstack.io~1name",
-		"a/b~c":                  "a~1b~0c",
-		"plain":                  "plain",
-	}
-	for in, want := range cases {
-		if got := commonadmission.EscapeJSONPointer(in); got != want {
-			t.Errorf("escape %q = %q, want %q", in, got, want)
-		}
-	}
-}
-
 func TestMutatePodAllowsNonCocoonPod(t *testing.T) {
 	srv := newTestServer(t)
 	pod := &corev1.Pod{ObjectMeta: metav1.ObjectMeta{Name: "p", Namespace: "ns"}}