NetworkInfoTest.java

package io.evercam.network.discovery.test;

import static org.junit.Assert.*;
import io.evercam.network.discovery.IpTranslator;
import io.evercam.network.discovery.NetworkInfo;

import java.io.IOException;
import java.net.NetworkInterface;

import org.junit.Test;

public class NetworkInfoTest {
    private final String TEST_IP = "10.0.0.25";
    private final String TEST_NET_MASK = "255.255.255.0";
    private final String TEST_EXTERNAL_IP = "5.149.169.19";
    private final int TEST_CIDR = 24;

    @Test
    public void testGetCidr() throws IOException {
	NetworkInterface networkInterface = NetworkInfo
		.getNetworkInterfaceByIp(TEST_IP);
	int cidr = NetworkInfo.getCidrFromInterface(networkInterface);
	assertEquals(TEST_CIDR, cidr);
	assertEquals(TEST_NET_MASK, IpTranslator.cidrToMask(cidr));
    }

    @Test
    public void testGetTranslateCidrToMask() throws IOException {
	assertEquals(TEST_NET_MASK, IpTranslator.cidrToMask(TEST_CIDR));
	assertEquals(TEST_CIDR, IpTranslator.maskIpToCidr(TEST_NET_MASK));
    }

    @Test
    public void testExternalIp() {
	assertEquals(TEST_EXTERNAL_IP, NetworkInfo.getExternalIP());
    }

    @Test
    public void testValidIpv4() {
	String ipv41 = "192.168.1.1";
	String ipv42 = "172.0.0.6";
	String ipv43 = "89.101.130.1";
	String wrongIpv4 = "(192.168.1.1)";
	String ipv6 = "FE80:0000:0000:0000:0202:B3FF";
	String wrongIpv6 = "(FE80:0000:0000:0000:0202:B3FF)";

	assertTrue(IpTranslator.isValidIpv4Addr(ipv41));
	assertTrue(IpTranslator.isValidIpv4Addr(ipv42));
	assertTrue(IpTranslator.isValidIpv4Addr(ipv43));
	assertFalse(IpTranslator.isValidIpv4Addr(wrongIpv4));
	assertFalse(IpTranslator.isValidIpv4Addr(ipv6));
	assertFalse(IpTranslator.isValidIpv4Addr(wrongIpv6));
    }
}