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package otr3
import "testing"
func Test_verifyInstanceTags_ignoresOurInstaceTagIfItIsZero(t *testing.T) {
v := otrV3{}
c := &Conversation{version: v}
err := v.verifyInstanceTags(c, 0x100, 0)
assertNil(t, err)
}
func Test_verifyInstanceTags_returnsErrorWhenOurInstanceTagIsLesserThan0x100(t *testing.T) {
v := otrV3{}
c := &Conversation{version: v}
err := v.verifyInstanceTags(c, 0x100, 0x99)
assertEquals(t, err, errInvalidOTRMessage)
}
func Test_verifyInstanceTags_signalsMalformedMessageWhenOurInstanceTagIsLesserThan0x100(t *testing.T) {
v := otrV3{}
c := &Conversation{version: v}
c.expectMessageEvent(t, func() {
v.verifyInstanceTags(c, 0x100, 0x99)
}, MessageEventReceivedMessageMalformed, nil, nil)
}
func Test_verifyInstanceTags_returnsErrorWhenOurInstanceDoesNotMatch(t *testing.T) {
v := otrV3{}
c := &Conversation{version: v}
c.theirInstanceTag = 0x100
c.ourInstanceTag = 0x122
err := v.verifyInstanceTags(c, c.theirInstanceTag, 0x121)
assertEquals(t, err, errReceivedMessageForOtherInstance)
}
func Test_verifyInstanceTags_signalsAMessageEventWhenOurInstanceTagDoesNotMatch(t *testing.T) {
v := otrV3{}
c := &Conversation{version: v}
c.theirInstanceTag = 0x100
c.ourInstanceTag = 0x122
c.expectMessageEvent(t, func() {
v.verifyInstanceTags(c, c.theirInstanceTag, 0x121)
}, MessageEventReceivedMessageForOtherInstance, nil, nil)
}
func Test_verifyInstanceTags_savesTheirInstanceTag(t *testing.T) {
v := otrV3{}
c := &Conversation{}
err := v.verifyInstanceTags(c, 0x101, 0)
assertNil(t, err)
assertEquals(t, c.theirInstanceTag, uint32(0x101))
}
func Test_verifyInstanceTags_returnsErrorWhenTheirInstanceTagIsLesserThan0x100(t *testing.T) {
v := otrV3{}
c := &Conversation{version: v}
err := v.verifyInstanceTags(c, 0x99, 0x100)
assertEquals(t, err, errInvalidOTRMessage)
}
func Test_verifyInstanceTags_returnsErrorWhenTheirInstanceTagIsZero(t *testing.T) {
v := otrV3{}
c := &Conversation{version: v}
err := v.verifyInstanceTags(c, 0, 0x100)
assertEquals(t, err, errInvalidOTRMessage)
}
func Test_verifyInstanceTags_signalsMalformedMessageWhenTheirInstanceTagIsTooLow(t *testing.T) {
v := otrV3{}
c := &Conversation{version: v}
c.expectMessageEvent(t, func() {
v.verifyInstanceTags(c, 0, 0x100)
}, MessageEventReceivedMessageMalformed, nil, nil)
}
func Test_verifyInstanceTags_returnsErrorWhenTheirInstanceTagDoesNotMatch(t *testing.T) {
v := otrV3{}
c := &Conversation{version: v}
c.theirInstanceTag = 0x122
err := v.verifyInstanceTags(c, 0x121, c.ourInstanceTag)
assertEquals(t, err, errReceivedMessageForOtherInstance)
}
func Test_verifyInstanceTags_signalsAMessageEventWhenTheirInstanceTagDoesNotMatch(t *testing.T) {
v := otrV3{}
c := &Conversation{version: v}
c.theirInstanceTag = 0x122
c.expectMessageEvent(t, func() {
v.verifyInstanceTags(c, 0x121, c.ourInstanceTag)
}, MessageEventReceivedMessageForOtherInstance, nil, nil)
}
func Test_otrv3_parseMessageHeader_signalsMalformedMessageWhenWeCantParseInstanceTags(t *testing.T) {
v := otrV3{}
c := &Conversation{version: v}
c.expectMessageEvent(t, func() {
v.parseMessageHeader(c, []byte{0x00, 0x03, 0x02, 0x00, 0x00, 0x01, 0x22, 0x00, 0x00, 0x01})
}, MessageEventReceivedMessageMalformed, nil, nil)
}
func Test_generateInstanceTag_generatesOurInstanceTag(t *testing.T) {
rand := fixedRand([]string{"00000099", "00001234"})
c := &Conversation{Rand: rand}
err := c.generateInstanceTag()
assertEquals(t, err, nil)
assertEquals(t, c.ourInstanceTag, uint32(0x1234))
}
func Test_generateInstanceTag_returnsAnErrorIfFailsToReadFromRand(t *testing.T) {
rand := fixedRand([]string{"00000099", "00000080"})
c := &Conversation{Rand: rand}
err := c.generateInstanceTag()
assertEquals(t, err, errShortRandomRead)
assertEquals(t, c.ourInstanceTag, uint32(0))
}
func Test_messageHeader_generatesOurInstanceTagLazily(t *testing.T) {
c := &Conversation{}
_, err := otrV3{}.messageHeader(c, msgTypeDHCommit)
assertEquals(t, err, nil)
assertEquals(t, c.ourInstanceTag < minValidInstanceTag, false)
previousInstanceTag := c.ourInstanceTag
_, err = otrV3{}.messageHeader(c, msgTypeDHCommit)
assertEquals(t, err, nil)
assertEquals(t, c.ourInstanceTag, previousInstanceTag)
}
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