}
	for i, c := range cases {
		t.Run(fmt.Sprintf("case %d %s", i, c.version), func(t *testing.T) {
			got, err := extractKubernetesVersion(c.version)
			if c.errMsg != err && c.isValid {
				t.Fatalf("\nwanted: %v \nbut found: %v", c.errMsg, err)
			}
			if got != c.expected {
				t.Fatalf("wanted %v got %v", c.expected, got)
			}
		})
	}
}

func TestIsK8VersionSupported(t *testing.T) {
	cases := []struct {