func(cmd string, args ...string) exec.Cmd { return fakeexec.InitFakeCmd(&fcmd, cmd, args...) },
			},
		}
		ipt := New(fexec, ProtocolIPv4)
		runner := ipt.(*runner)
		if testCase.Expected != runner.hasCheck {
			t.Errorf("Expected result: %v, Got result: %v", testCase.Expected, runner.hasCheck)
		}
	}
}

func TestInitFuncTypes(t *testing.T) {
	n := 100
	var wg sync.WaitGroup

	wg.Add(n)
	for i := 0; i < n; i++ {
		go func() {
			defer wg.Done()
			ipT := TypeOf(net.IP{})
			for i := 0; i < ipT.NumMethod(); i++ {
				_ = ipT.Method(i)
			}
		}()
	}
	wg.Wait()
}

func TestClear(t *testing.T) {
	m := make(map[string]any, len(valueTests))
	for _, tt := range valueTests {