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ipv4_test.go
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ipv4_test.go
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// go test -v -run="TestIPv4"
package cidrman
import (
"net"
"testing"
)
func TestIPv4(t *testing.T) {
type TestCase struct {
Input string
Hostmask string
Netmask string
Broadcast string
Network string
Error bool
}
testCases := []TestCase{
{
Input: "",
Hostmask: "",
Netmask: "",
Broadcast: "",
Network: "",
Error: true,
},
{
Input: "0.0.0.0/0",
Hostmask: "255.255.255.255",
Netmask: "0.0.0.0",
Broadcast: "255.255.255.255",
Network: "0.0.0.0",
Error: false,
},
{
Input: "192.0.2.0/24",
Hostmask: "0.0.0.255",
Netmask: "255.255.255.0",
Broadcast: "192.0.2.255",
Network: "192.0.2.0",
Error: false,
},
{
Input: "192.0.3.112/22",
Hostmask: "0.0.3.255",
Netmask: "255.255.252.0",
Broadcast: "192.0.3.255",
Network: "192.0.0.0",
Error: false,
},
{
Input: "192.168.1.151/32",
Hostmask: "0.0.0.0",
Netmask: "255.255.255.255",
Broadcast: "192.168.1.151",
Network: "192.168.1.151",
Error: false,
},
}
for _, testCase := range testCases {
ip, net, err := net.ParseCIDR(testCase.Input)
if err != nil {
if !testCase.Error {
t.Errorf("net.ParseCIDR(%#v) failed: %s", testCase.Input, err.Error())
}
continue
}
prefix, _ := net.Mask.Size()
hostmask := uint32ToIPV4(hostmask4(uint(prefix))).String()
if hostmask != testCase.Hostmask {
t.Errorf("Hostmask expected: %#v, got: %#v", testCase.Hostmask, hostmask)
}
netmask := uint32ToIPV4(netmask4(uint(prefix))).String()
if netmask != testCase.Netmask {
t.Errorf("Netmask expected: %#v, got: %#v", testCase.Netmask, netmask)
}
addr := ipv4ToUInt32(ip.To4())
broadcast := uint32ToIPV4(broadcast4(addr, uint(prefix))).String()
if broadcast != testCase.Broadcast {
t.Errorf("Broadcast expected: %#v, got: %#v", testCase.Broadcast, broadcast)
}
network := uint32ToIPV4(network4(addr, uint(prefix))).String()
if network != testCase.Network {
t.Errorf("Network expected: %#v, got: %#v", testCase.Network, network)
}
}
}