You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: example_test.go
    path of file: ./repos/router7/internal/testing/dnsmasq
    
    the code of the file until where you have to start completion: // Copyright 2018 Google Inc.
    
func Example(t *testing.T) {
	dnsmasq := dnsmasq.Run(t, "veth0b", "ns0")
	defer dnsmasq.Kill()
	// test code here

	// optionally introspect the dnsmasq log:
	dnsmasq.Kill()
	got := dnsmasq.Actions()
	want := []string{
		"DHCPDISCOVER(veth0b)",
		"DHCPOFFER(veth0b)",
		"DHCPREQUEST(veth0b)",
		"DHCPACK(veth0b)",
		"DHCPRELEASE(veth0b)",
	}
	actionOnly := func(line string) string {
		result := line
		if idx := strings.Index(result, " "); idx > -1 {
			return result[:idx]
		}
		return result
	}
	if diff := cmp.Diff(want, got, cmp.Transformer("ActionOnly", actionOnly)); diff != "" {
		t.Errorf("dnsmasq log does not contain expected DHCP sequence: diff (-want +got):\n%s", diff)
	}
}