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|
package dhcpv4
import (
"bytes"
"testing"
)
/*
* BootImageID
*/
func TestBootImageIDToBytes(t *testing.T) {
b := BootImageID{
isInstall: true,
imageKind: BSDPBootImageMacOSX,
index: 0x1000,
}
actual := b.toBytes()
expected := []byte{0x81, 0, 0x10, 0}
if !bytes.Equal(actual, expected) {
t.Fatalf("Invalid bytes conversion: expected %v, got %v", expected, actual)
}
b.isInstall = false
actual = b.toBytes()
expected = []byte{0x01, 0, 0x10, 0}
if !bytes.Equal(actual, expected) {
t.Fatalf("Invalid bytes conversion: expected %v, got %v", expected, actual)
}
}
func TestBootImageIDFromBytes(t *testing.T) {
b := BootImageID{
isInstall: false,
imageKind: BSDPBootImageMacOSX,
index: 0x1000,
}
newBootImage := bootImageIDFromBytes(b.toBytes())
if b != newBootImage {
t.Fatalf("Difference in BootImageIDs: expected %v, got %v", b, newBootImage)
}
b = BootImageID{
isInstall: true,
imageKind: BSDPBootImageMacOSX,
index: 0x1011,
}
newBootImage = bootImageIDFromBytes(b.toBytes())
if b != newBootImage {
t.Fatalf("Difference in BootImageIDs: expected %v, got %v", b, newBootImage)
}
}
/*
* BootImage
*/
func TestBootImageToBytes(t *testing.T) {
b := BootImage{
ID: BootImageID{
isInstall: true,
imageKind: BSDPBootImageMacOSX,
index: 0x1000,
},
Name: "bsdp-1",
}
expected := []byte{
0x81, 0, 0x10, 0, // boot image ID
6, // len(Name)
98, 115, 100, 112, 45, 49, // byte-encoding of Name
}
actual := b.toBytes()
if !bytes.Equal(expected, actual) {
t.Fatalf("Invalid bytes conversion: expected %v, got %v", expected, actual)
}
b = BootImage{
ID: BootImageID{
isInstall: false,
imageKind: BSDPBootImageMacOSX,
index: 0x1010,
},
Name: "bsdp-21",
}
expected = []byte{
0x1, 0, 0x10, 0x10, // boot image ID
7, // len(Name)
98, 115, 100, 112, 45, 50, 49, // byte-encoding of Name
}
actual = b.toBytes()
if !bytes.Equal(expected, actual) {
t.Fatalf("Invalid bytes conversion: expected %v, got %v", expected, actual)
}
}
func TestBootImageFromBytes(t *testing.T) {
input := []byte{
0x1, 0, 0x10, 0x10, // boot image ID
7, // len(Name)
98, 115, 100, 112, 45, 50, 49, // byte-encoding of Name
}
b, read, err := bootImageFromBytes(input)
AssertNil(t, err, "error while marshalling BootImage")
AssertEqual(t, read, len(input), "number of bytes from input")
expectedBootImage := BootImage{
ID: BootImageID{
isInstall: false,
imageKind: BSDPBootImageMacOSX,
index: 0x1010,
},
Name: "bsdp-21",
}
AssertEqual(t, *b, expectedBootImage, "invalid marshalling of BootImage")
}
func TestBootImageFromBytesOnlyBootImageID(t *testing.T) {
// Only a BootImageID, nothing else.
input := []byte{0x1, 0, 0x10, 0x10}
_, _, err := bootImageFromBytes(input)
AssertNotNil(t, err, "short bytestream")
}
func TestBootImageFromBytesShortBootImage(t *testing.T) {
input := []byte{
0x1, 0, 0x10, 0x10, // boot image ID
7, // len(Name)
98, 115, 100, 112, 45, 50, // Name bytes (intentially off-by-one)
}
_, _, err := bootImageFromBytes(input)
AssertNotNil(t, err, "short bytestream")
}
func TestParseBootImageSingleBootImage(t *testing.T) {
input := []byte{
0x1, 0, 0x10, 0x10, // boot image ID
7, // len(Name)
98, 115, 100, 112, 45, 50, 49, // byte-encoding of Name
}
bs, err := parseBootImagesFromBSDPOption(input)
AssertNil(t, err, "parsing boot image")
AssertEqual(t, len(bs), 1, "length of boot images")
b := bs[0]
expectedBootImage := BootImageID{
isInstall: false,
imageKind: BSDPBootImageMacOSX,
index: 0x1010,
}
AssertEqual(t, b.ID, expectedBootImage, "boot image ID")
AssertEqual(t, b.Name, "bsdp-21", "boot image name")
}
func TestParseBootImageMultipleBootImage(t *testing.T) {
input := []byte{
// boot image 1
0x1, 0, 0x10, 0x10, // boot image ID
7, // len(Name)
98, 115, 100, 112, 45, 50, 49, // byte-encoding of Name
// boot image 2
0x82, 0, 0x11, 0x22, // boot image ID
8, // len(Name)
98, 115, 100, 112, 45, 50, 50, 50, // byte-encoding of Name
}
bs, err := parseBootImagesFromBSDPOption(input)
AssertNil(t, err, "parsing boot image")
AssertEqual(t, len(bs), 2, "length of boot images")
b1 := bs[0]
b2 := bs[1]
expectedID1 := BootImageID{
isInstall: false,
imageKind: BSDPBootImageMacOSX,
index: 0x1010,
}
expectedID2 := BootImageID{
isInstall: true,
imageKind: BSDPBootImageMacOSXServer,
index: 0x1122,
}
AssertEqual(t, b1.ID, expectedID1, "boot image ID 1")
AssertEqual(t, b2.ID, expectedID2, "boot image ID 2")
AssertEqual(t, b1.Name, "bsdp-21", "boot image 1 name")
AssertEqual(t, b2.Name, "bsdp-222", "boot image 1 name")
}
func TestParseBootImageFail(t *testing.T) {
_, err := parseBootImagesFromBSDPOption([]byte{})
AssertNotNil(t, err, "parseBootImages with empty arg")
_, err = parseBootImagesFromBSDPOption([]byte{1, 2, 3})
AssertNotNil(t, err, "parseBootImages with short arg")
}
/*
* parseVendorOptionsFromOptions
*/
func TestParseVendorOptions(t *testing.T) {
recvOpts := []Option{
Option{
Code: OptionDHCPMessageType,
Data: []byte{MessageTypeAck},
},
Option{
Code: OptionBroadcastAddress,
Data: []byte{0xff, 0xff, 0xff, 0xff},
},
Option{
Code: OptionVendorSpecificInformation,
Data: OptionsToBytes([]Option{
Option{
Code: BSDPOptionMessageType,
Data: []byte{BSDPMessageTypeList},
},
Option{
Code: BSDPOptionVersion,
Data: BSDPVersion1_0,
},
}),
},
}
opts := parseVendorOptionsFromOptions(recvOpts)
AssertEqual(t, len(opts), 2, "len of vendor opts")
}
func TestParseVendorOptionsFromOptionsNotPresent(t *testing.T) {
recvOpts := []Option{
Option{
Code: OptionDHCPMessageType,
Data: []byte{MessageTypeAck},
},
Option{
Code: OptionBroadcastAddress,
Data: []byte{0xff, 0xff, 0xff, 0xff},
},
}
opts := parseVendorOptionsFromOptions(recvOpts)
AssertEqual(t, len(opts), 0, "len of vendor opts")
}
func TestParseVendorOptionsFromOptionsEmpty(t *testing.T) {
options := parseVendorOptionsFromOptions([]Option{})
AssertEqual(t, len(options), 0, "size of options")
}
/*
* ParseBootImageListFromAck
*/
func TestParseBootImageListFromAck(t *testing.T) {
bootImages := []BootImage{
BootImage{
ID: BootImageID{
isInstall: true,
imageKind: BSDPBootImageMacOSX,
index: 0x1010,
},
Name: "bsdp-1",
},
BootImage{
ID: BootImageID{
isInstall: false,
imageKind: BSDPBootImageMacOS9,
index: 0x1111,
},
Name: "bsdp-2",
},
}
var bootImageBytes []byte
for _, image := range bootImages {
bootImageBytes = append(bootImageBytes, image.toBytes()...)
}
ack := DHCPv4{
options: []Option{
Option{
Code: OptionVendorSpecificInformation,
Data: OptionsToBytes([]Option{
Option{
Code: BSDPOptionBootImageList,
Data: bootImageBytes,
},
}),
},
},
}
images, err := ParseBootImageListFromAck(ack)
AssertNil(t, err, "error from ParseBootImageListFromAck")
AssertNotNil(t, images, "parsed boot images from ack")
if len(images) != len(bootImages) {
t.Fatalf("Expected same number of BootImages, got %d instead", len(images))
}
for i := range images {
if images[i] != bootImages[i] {
t.Fatalf("Expected boot images to be same. %v != %v", images[i], bootImages[i])
}
}
}
/*
* NewInformListForInterface
*/
|
