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package otr3
import "testing"
func Test_newOtrVersion_returnsTheCorrectOTRVersionForAValidVersionNumber(t *testing.T) {
v, _ := newOtrVersion(3, policies(allowV3))
_, ok := v.(otrV3)
assertEquals(t, ok, true)
}
func Test_newOtrVersion_returnsUnsupportedVersionErrorIfGivenAWrongVersion(t *testing.T) {
_, err := newOtrVersion(4, policies(allowV3))
assertEquals(t, err, errUnsupportedOTRVersion)
}
func Test_newOtrVersion_returnsAnErrorIfGivenAVersionThatIsntAllowedByPolicy(t *testing.T) {
_, err := newOtrVersion(3, policies(allowV2))
assertEquals(t, err, errInvalidVersion)
}
func Test_checkVersion_returnsErrorIfTheMessageIsCorrupt(t *testing.T) {
c := &Conversation{}
e := c.checkVersion([]byte{0x00})
assertEquals(t, e, errInvalidOTRMessage)
}
func Test_checkVersion_setsTheConversationVersionIfWeHaveNoExistingVersion(t *testing.T) {
c := &Conversation{Policies: policies(allowV3)}
c.ourKeys = []PrivateKey{alicePrivateKey}
e := c.checkVersion([]byte{0x00, 0x03})
assertEquals(t, e, nil)
assertDeepEquals(t, c.version, otrV3{})
}
func Test_checkVersion_setsTheConversationVersionIfWeHaveTheCorrectPolicy(t *testing.T) {
c := &Conversation{Policies: policies(allowV2)}
c.ourKeys = []PrivateKey{alicePrivateKey}
e := c.checkVersion([]byte{0x00, 0x02})
assertEquals(t, e, nil)
assertDeepEquals(t, c.version, otrV2{})
}
func Test_checkVersion_returnsTheErrorFromNewOtrVersion(t *testing.T) {
c := &Conversation{Policies: policies(allowV2)}
c.ourKeys = []PrivateKey{alicePrivateKey}
e := c.checkVersion([]byte{0x00, 0x03})
assertEquals(t, e, errUnsupportedOTRVersion)
}
func Test_checkVersion_doesNotSetConversationVersionIfOneIsAlreadySet(t *testing.T) {
c := &Conversation{Policies: policies(allowV2 | allowV3), version: otrV3{}}
c.ourKeys = []PrivateKey{alicePrivateKey}
c.checkVersion([]byte{0x00, 0x02})
assertEquals(t, otrV3{}, c.version)
}
func Test_checkVersion_returnsErrorIfCurrentVersionIsDifferentFromMessageVersion(t *testing.T) {
c := &Conversation{Policies: policies(allowV2 | allowV3), version: otrV3{}}
c.ourKeys = []PrivateKey{alicePrivateKey}
e := c.checkVersion([]byte{0x00, 0x02})
assertEquals(t, e, errWrongProtocolVersion)
}
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