expectedErrors: 1,
			ipRange: &networking.ServiceCIDR{
				ObjectMeta: metav1.ObjectMeta{
					Name: "test-name",
				},
				Spec: networking.ServiceCIDRSpec{
					CIDRs: []string{"asdasdasd"},
				},
			},
		},
		"iponly-iprange-ipv4": {
			expectedErrors: 1,
			ipRange: &networking.ServiceCIDR{
				ObjectMeta: metav1.ObjectMeta{
					Name: "test-name",
				},

func TestWriteError(t *testing.T) {
	t.Parallel()
	buf := new(bytes.Buffer)
	n := 65536
	if !testing.Short() {
		n *= 4
	}
	for i := 0; i < n; i++ {
		fmt.Fprintf(buf, "asdasfasf%d%dfghfgujyut%dyutyu\n", i, i, i)
	}
	in := buf.Bytes()
	// We create our own buffer to control number of writes.
	copyBuffer := make([]byte, 128)
	for l := 0; l < 10; l++ {
		for fail := 1; fail <= 256; fail *= 2 {