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// Copyright 2018-present the CoreDHCP Authors. All rights reserved
// This source code is licensed under the MIT license found in the
// LICENSE file in the root directory of this source tree.
package netmask
import (
"net"
"testing"
"github.com/insomniacslk/dhcp/dhcpv4"
"github.com/stretchr/testify/assert"
)
func TestCheckValidNetmask(t *testing.T) {
assert.True(t, checkValidNetmask(net.IPv4Mask(255, 255, 255, 0)))
assert.True(t, checkValidNetmask(net.IPv4Mask(255, 255, 0, 0)))
assert.True(t, checkValidNetmask(net.IPv4Mask(255, 0, 0, 0)))
assert.True(t, checkValidNetmask(net.IPv4Mask(0, 0, 0, 0)))
assert.False(t, checkValidNetmask(net.IPv4Mask(0, 255, 255, 255)))
assert.False(t, checkValidNetmask(net.IPv4Mask(0, 0, 255, 255)))
assert.False(t, checkValidNetmask(net.IPv4Mask(0, 0, 0, 255)))
}
func TestHandler4(t *testing.T) {
// set plugin netmask
netmask = net.IPv4Mask(255, 255, 255, 0)
// prepare DHCPv4 request
req := &dhcpv4.DHCPv4{}
resp := &dhcpv4.DHCPv4{
Options: dhcpv4.Options{},
}
// if we handle this DHCP request, the netmask should be one of the options
// of the result
result, stop := Handler4(req, resp)
assert.Same(t, result, resp)
assert.False(t, stop)
assert.EqualValues(t, netmask, resp.Options.Get(dhcpv4.OptionSubnetMask))
}
func TestSetup4(t *testing.T) {
// valid configuration
_, err := setup4("255.255.255.0")
assert.NoError(t, err)
assert.EqualValues(t, netmask, net.IPv4Mask(255, 255, 255, 0))
// no configuration
_, err = setup4()
assert.Error(t, err)
// unspecified netmask
_, err = setup4("0.0.0.0")
assert.Error(t, err)
// ipv6 prefix
_, err = setup4("ff02::/64")
assert.Error(t, err)
// invalid netmask
_, err = setup4("0.0.0.255")
assert.Error(t, err)
}
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