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package bsdp
import (
"testing"
"github.com/insomniacslk/dhcp/dhcpv4"
"github.com/stretchr/testify/require"
)
func TestOptVendorSpecificInformationInterfaceMethods(t *testing.T) {
messageTypeOpt := &OptMessageType{MessageTypeList}
versionOpt := &OptVersion{Version1_1}
o := &OptVendorSpecificInformation{[]dhcpv4.Option{messageTypeOpt, versionOpt}}
require.Equal(t, dhcpv4.OptionVendorSpecificInformation, o.Code(), "Code")
require.Equal(t, 2+messageTypeOpt.Length()+2+versionOpt.Length(), o.Length(), "Length")
expectedBytes := []byte{
43, // code
7, // length
1, 1, 1, // List option
2, 2, 1, 1, // Version option
}
o = &OptVendorSpecificInformation{
[]dhcpv4.Option{
&OptMessageType{MessageTypeList},
&OptVersion{Version1_1},
},
}
require.Equal(t, expectedBytes, o.ToBytes(), "ToBytes")
}
func TestParseOptVendorSpecificInformation(t *testing.T) {
var (
o *OptVendorSpecificInformation
err error
)
o, err = ParseOptVendorSpecificInformation([]byte{})
require.Error(t, err, "empty byte stream")
o, err = ParseOptVendorSpecificInformation([]byte{1, 2})
require.Error(t, err, "short byte stream")
o, err = ParseOptVendorSpecificInformation([]byte{53, 2, 1, 1})
require.Error(t, err, "wrong option code")
// Good byte stream
data := []byte{
43, // code
7, // length
1, 1, 1, // List option
2, 2, 1, 1, // Version option
}
o, err = ParseOptVendorSpecificInformation(data)
require.NoError(t, err)
expected := &OptVendorSpecificInformation{
[]dhcpv4.Option{
&OptMessageType{MessageTypeList},
&OptVersion{Version1_1},
},
}
require.Equal(t, 2, len(o.Options), "number of parsed suboptions")
require.Equal(t, expected.Options[0].Code(), o.Options[0].Code())
require.Equal(t, expected.Options[1].Code(), o.Options[1].Code())
// Short byte stream (length and data mismatch)
data = []byte{
43, // code
7, // length
1, 1, 1, // List option
2, 2, 1, // Version option
}
o, err = ParseOptVendorSpecificInformation(data)
require.Error(t, err)
// Bad option
data = []byte{
43, // code
7, // length
1, 1, 1, // List option
2, 2, 1, // Version option
5, 3, 1, 1, 1, // Reply port option
}
o, err = ParseOptVendorSpecificInformation(data)
require.Error(t, err)
}
func TestOptVendorSpecificInformationString(t *testing.T) {
o := &OptVendorSpecificInformation{
[]dhcpv4.Option{
&OptMessageType{MessageTypeList},
&OptVersion{Version1_1},
},
}
expectedString := "Vendor Specific Information ->\n BSDP Message Type -> LIST\n BSDP Version -> 1.1"
require.Equal(t, expectedString, o.String())
// Test more complicated string - sub options of sub options.
o = &OptVendorSpecificInformation{
[]dhcpv4.Option{
&OptMessageType{MessageTypeList},
&OptBootImageList{
[]BootImage{
BootImage{
ID: BootImageID{
IsInstall: false,
ImageType: BootImageTypeMacOSX,
Index: 1001,
},
Name: "bsdp-1",
},
BootImage{
ID: BootImageID{
IsInstall: true,
ImageType: BootImageTypeMacOS9,
Index: 9009,
},
Name: "bsdp-2",
},
},
},
},
}
expectedString = "Vendor Specific Information ->\n" +
" BSDP Message Type -> LIST\n" +
" BSDP Boot Image List ->\n" +
" bsdp-1 [1001] uninstallable macOS image\n" +
" bsdp-2 [9009] installable macOS 9 image"
require.Equal(t, expectedString, o.String())
}
func TestOptVendorSpecificInformationGetOptions(t *testing.T) {
// No option
o := &OptVendorSpecificInformation{
[]dhcpv4.Option{
&OptMessageType{MessageTypeList},
&OptVersion{Version1_1},
},
}
foundOpts := o.GetOption(OptionBootImageList)
require.Empty(t, foundOpts, "should not get any options")
// One option
o = &OptVendorSpecificInformation{
[]dhcpv4.Option{
&OptMessageType{MessageTypeList},
&OptVersion{Version1_1},
},
}
foundOpts = o.GetOption(OptionMessageType)
require.Equal(t, 1, len(foundOpts), "should only get one option")
require.Equal(t, MessageTypeList, foundOpts[0].(*OptMessageType).Type)
// Multiple options
o = &OptVendorSpecificInformation{
[]dhcpv4.Option{
&OptMessageType{MessageTypeList},
&OptVersion{Version1_1},
&OptVersion{Version1_0},
},
}
foundOpts = o.GetOption(OptionVersion)
require.Equal(t, 2, len(foundOpts), "should get two options")
require.Equal(t, Version1_1, foundOpts[0].(*OptVersion).Version)
require.Equal(t, Version1_0, foundOpts[1].(*OptVersion).Version)
}
func TestOptVendorSpecificInformationGetOneOption(t *testing.T) {
// No option
o := &OptVendorSpecificInformation{
[]dhcpv4.Option{
&OptMessageType{MessageTypeList},
&OptVersion{Version1_1},
},
}
foundOpt := o.GetOneOption(OptionBootImageList)
require.Nil(t, foundOpt, "should not get options")
// One option
o = &OptVendorSpecificInformation{
[]dhcpv4.Option{
&OptMessageType{MessageTypeList},
&OptVersion{Version1_1},
},
}
foundOpt = o.GetOneOption(OptionMessageType)
require.Equal(t, MessageTypeList, foundOpt.(*OptMessageType).Type)
// Multiple options
o = &OptVendorSpecificInformation{
[]dhcpv4.Option{
&OptMessageType{MessageTypeList},
&OptVersion{Version1_1},
&OptVersion{Version1_0},
},
}
foundOpt = o.GetOneOption(OptionVersion)
require.Equal(t, Version1_1, foundOpt.(*OptVersion).Version)
}
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