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|
package openvpn
import (
"fmt"
"testing"
)
// A key requirement of our event parsing is that it must never cause a
// panic, even if the OpenVPN process sends us malformed garbage.
//
// Therefore most of the tests in here are testing various tortured error
// cases, which are all expected to produce an event object, though the
// contents of that event object will be nonsensical if the OpenVPN server
// sends something nonsensical.
func TestMalformedEvent(t *testing.T) {
testCases := [][]byte{
[]byte(""),
[]byte("HTTP/1.1 200 OK"),
[]byte(" "),
[]byte("\x00"),
}
for i, testCase := range testCases {
event := upgradeEvent(testCase)
var malformed *MalformedEvent
var ok bool
if malformed, ok = event.(*MalformedEvent); !ok {
t.Errorf("test %d got %T; want %T", i, event, malformed)
continue
}
wantString := fmt.Sprintf("Malformed Event %q", testCase)
if gotString := malformed.String(); gotString != wantString {
t.Errorf("test %d String returned %q; want %q", i, gotString, wantString)
}
}
}
func TestUnknownEvent(t *testing.T) {
type TestCase struct {
Input []byte
WantType string
WantBody string
}
testCases := []TestCase{
{
Input: []byte("DUMMY:baz"),
WantType: "DUMMY",
WantBody: "baz",
},
{
Input: []byte("DUMMY:"),
WantType: "DUMMY",
WantBody: "",
},
{
Input: []byte("DUMMY:abc,123,456"),
WantType: "DUMMY",
WantBody: "abc,123,456",
},
}
for i, testCase := range testCases {
event := upgradeEvent(testCase.Input)
var unk *UnknownEvent
var ok bool
if unk, ok = event.(*UnknownEvent); !ok {
t.Errorf("test %d got %T; want %T", i, event, unk)
continue
}
if got, want := unk.Type(), testCase.WantType; got != want {
t.Errorf("test %d Type returned %q; want %q", i, got, want)
}
if got, want := unk.Body(), testCase.WantBody; got != want {
t.Errorf("test %d Body returned %q; want %q", i, got, want)
}
}
}
func TestHoldEvent(t *testing.T) {
testCases := [][]byte{
[]byte("HOLD:"),
[]byte("HOLD:waiting for hold release"),
}
for i, testCase := range testCases {
event := upgradeEvent(testCase)
var hold *HoldEvent
var ok bool
if hold, ok = event.(*HoldEvent); !ok {
t.Errorf("test %d got %T; want %T", i, event, hold)
continue
}
}
}
func TestEchoEvent(t *testing.T) {
type TestCase struct {
Input []byte
WantTimestamp string
WantMessage string
}
testCases := []TestCase{
{
Input: []byte("ECHO:123,foo"),
WantTimestamp: "123",
WantMessage: "foo",
},
{
Input: []byte("ECHO:123,"),
WantTimestamp: "123",
WantMessage: "",
},
{
Input: []byte("ECHO:,foo"),
WantTimestamp: "",
WantMessage: "foo",
},
{
Input: []byte("ECHO:,"),
WantTimestamp: "",
WantMessage: "",
},
{
Input: []byte("ECHO:"),
WantTimestamp: "",
WantMessage: "",
},
}
for i, testCase := range testCases {
event := upgradeEvent(testCase.Input)
var echo *EchoEvent
var ok bool
if echo, ok = event.(*EchoEvent); !ok {
t.Errorf("test %d got %T; want %T", i, event, echo)
continue
}
if got, want := echo.RawTimestamp(), testCase.WantTimestamp; got != want {
t.Errorf("test %d RawTimestamp returned %q; want %q", i, got, want)
}
if got, want := echo.Message(), testCase.WantMessage; got != want {
t.Errorf("test %d Message returned %q; want %q", i, got, want)
}
}
}
func TestStateEvent(t *testing.T) {
type TestCase struct {
Input []byte
WantTimestamp string
WantState string
WantDesc string
WantLocalAddr string
WantRemoteAddr string
}
testCases := []TestCase{
{
Input: []byte("STATE:"),
WantTimestamp: "",
WantState: "",
WantDesc: "",
WantLocalAddr: "",
WantRemoteAddr: "",
},
{
Input: []byte("STATE:,"),
WantTimestamp: "",
WantState: "",
WantDesc: "",
WantLocalAddr: "",
WantRemoteAddr: "",
},
{
Input: []byte("STATE:,,,,"),
WantTimestamp: "",
WantState: "",
WantDesc: "",
WantLocalAddr: "",
WantRemoteAddr: "",
},
{
Input: []byte("STATE:123,CONNECTED,good,172.16.0.1,192.168.4.1"),
WantTimestamp: "123",
WantState: "CONNECTED",
WantDesc: "good",
WantLocalAddr: "172.16.0.1",
WantRemoteAddr: "192.168.4.1",
},
{
Input: []byte("STATE:123,RECONNECTING,SIGHUP,,"),
WantTimestamp: "123",
WantState: "RECONNECTING",
WantDesc: "SIGHUP",
WantLocalAddr: "",
WantRemoteAddr: "",
},
{
Input: []byte("STATE:123,RECONNECTING,SIGHUP,,,extra"),
WantTimestamp: "123",
WantState: "RECONNECTING",
WantDesc: "SIGHUP",
WantLocalAddr: "",
WantRemoteAddr: "",
},
}
for i, testCase := range testCases {
event := upgradeEvent(testCase.Input)
var st *StateEvent
var ok bool
if st, ok = event.(*StateEvent); !ok {
t.Errorf("test %d got %T; want %T", i, event, st)
continue
}
if got, want := st.RawTimestamp(), testCase.WantTimestamp; got != want {
t.Errorf("test %d RawTimestamp returned %q; want %q", i, got, want)
}
if got, want := st.NewState(), testCase.WantState; got != want {
t.Errorf("test %d NewState returned %q; want %q", i, got, want)
}
if got, want := st.Description(), testCase.WantDesc; got != want {
t.Errorf("test %d Description returned %q; want %q", i, got, want)
}
if got, want := st.LocalTunnelAddr(), testCase.WantLocalAddr; got != want {
t.Errorf("test %d LocalTunnelAddr returned %q; want %q", i, got, want)
}
if got, want := st.RemoteAddr(), testCase.WantRemoteAddr; got != want {
t.Errorf("test %d RemoteAddr returned %q; want %q", i, got, want)
}
}
}
func TestByteCountEvent(t *testing.T) {
type TestCase struct {
Input []byte
WantClientId string
WantBytesIn int
WantBytesOut int
}
testCases := []TestCase{
{
Input: []byte("BYTECOUNT:"),
WantClientId: "",
WantBytesIn: 0,
WantBytesOut: 0,
},
{
Input: []byte("BYTECOUNT:123,456"),
WantClientId: "",
WantBytesIn: 123,
WantBytesOut: 456,
},
{
Input: []byte("BYTECOUNT:,"),
WantClientId: "",
WantBytesIn: 0,
WantBytesOut: 0,
},
{
Input: []byte("BYTECOUNT:5,"),
WantClientId: "",
WantBytesIn: 5,
WantBytesOut: 0,
},
{
Input: []byte("BYTECOUNT:,6"),
WantClientId: "",
WantBytesIn: 0,
WantBytesOut: 6,
},
{
Input: []byte("BYTECOUNT:6"),
WantClientId: "",
WantBytesIn: 6,
WantBytesOut: 0,
},
{
Input: []byte("BYTECOUNT:wrong,bad"),
WantClientId: "",
WantBytesIn: 0,
WantBytesOut: 0,
},
{
Input: []byte("BYTECOUNT:1,2,3"),
WantClientId: "",
WantBytesIn: 1,
WantBytesOut: 2,
},
{
// Intentionally malformed BYTECOUNT event sent as BYTECOUNT_CLI
Input: []byte("BYTECOUNT_CLI:123,456"),
WantClientId: "123",
WantBytesIn: 456,
WantBytesOut: 0,
},
{
Input: []byte("BYTECOUNT_CLI:"),
WantClientId: "",
WantBytesIn: 0,
WantBytesOut: 0,
},
{
Input: []byte("BYTECOUNT_CLI:abc123,123,456"),
WantClientId: "abc123",
WantBytesIn: 123,
WantBytesOut: 456,
},
{
Input: []byte("BYTECOUNT_CLI:abc123,123"),
WantClientId: "abc123",
WantBytesIn: 123,
WantBytesOut: 0,
},
}
for i, testCase := range testCases {
event := upgradeEvent(testCase.Input)
var bc *ByteCountEvent
var ok bool
if bc, ok = event.(*ByteCountEvent); !ok {
t.Errorf("test %d got %T; want %T", i, event, bc)
continue
}
if got, want := bc.ClientId(), testCase.WantClientId; got != want {
t.Errorf("test %d ClientId returned %q; want %q", i, got, want)
}
if got, want := bc.BytesIn(), testCase.WantBytesIn; got != want {
t.Errorf("test %d BytesIn returned %d; want %d", i, got, want)
}
if got, want := bc.BytesOut(), testCase.WantBytesOut; got != want {
t.Errorf("test %d BytesOut returned %d; want %d", i, got, want)
}
}
}
|
