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package webrtc
import (
"testing"
"github.com/pion/webrtc/v3/pkg/rtcerr"
"github.com/stretchr/testify/assert"
)
func TestNewSignalingState(t *testing.T) {
testCases := []struct {
stateString string
expectedState SignalingState
}{
{unknownStr, SignalingState(Unknown)},
{"stable", SignalingStateStable},
{"have-local-offer", SignalingStateHaveLocalOffer},
{"have-remote-offer", SignalingStateHaveRemoteOffer},
{"have-local-pranswer", SignalingStateHaveLocalPranswer},
{"have-remote-pranswer", SignalingStateHaveRemotePranswer},
{"closed", SignalingStateClosed},
}
for i, testCase := range testCases {
assert.Equal(t,
testCase.expectedState,
newSignalingState(testCase.stateString),
"testCase: %d %v", i, testCase,
)
}
}
func TestSignalingState_String(t *testing.T) {
testCases := []struct {
state SignalingState
expectedString string
}{
{SignalingState(Unknown), unknownStr},
{SignalingStateStable, "stable"},
{SignalingStateHaveLocalOffer, "have-local-offer"},
{SignalingStateHaveRemoteOffer, "have-remote-offer"},
{SignalingStateHaveLocalPranswer, "have-local-pranswer"},
{SignalingStateHaveRemotePranswer, "have-remote-pranswer"},
{SignalingStateClosed, "closed"},
}
for i, testCase := range testCases {
assert.Equal(t,
testCase.expectedString,
testCase.state.String(),
"testCase: %d %v", i, testCase,
)
}
}
func TestSignalingState_Transitions(t *testing.T) {
testCases := []struct {
desc string
current SignalingState
next SignalingState
op stateChangeOp
sdpType SDPType
expectedErr error
}{
{
"stable->SetLocal(offer)->have-local-offer",
SignalingStateStable,
SignalingStateHaveLocalOffer,
stateChangeOpSetLocal,
SDPTypeOffer,
nil,
},
{
"stable->SetRemote(offer)->have-remote-offer",
SignalingStateStable,
SignalingStateHaveRemoteOffer,
stateChangeOpSetRemote,
SDPTypeOffer,
nil,
},
{
"have-local-offer->SetRemote(answer)->stable",
SignalingStateHaveLocalOffer,
SignalingStateStable,
stateChangeOpSetRemote,
SDPTypeAnswer,
nil,
},
{
"have-local-offer->SetRemote(pranswer)->have-remote-pranswer",
SignalingStateHaveLocalOffer,
SignalingStateHaveRemotePranswer,
stateChangeOpSetRemote,
SDPTypePranswer,
nil,
},
{
"have-remote-pranswer->SetRemote(answer)->stable",
SignalingStateHaveRemotePranswer,
SignalingStateStable,
stateChangeOpSetRemote,
SDPTypeAnswer,
nil,
},
{
"have-remote-offer->SetLocal(answer)->stable",
SignalingStateHaveRemoteOffer,
SignalingStateStable,
stateChangeOpSetLocal,
SDPTypeAnswer,
nil,
},
{
"have-remote-offer->SetLocal(pranswer)->have-local-pranswer",
SignalingStateHaveRemoteOffer,
SignalingStateHaveLocalPranswer,
stateChangeOpSetLocal,
SDPTypePranswer,
nil,
},
{
"have-local-pranswer->SetLocal(answer)->stable",
SignalingStateHaveLocalPranswer,
SignalingStateStable,
stateChangeOpSetLocal,
SDPTypeAnswer,
nil,
},
{
"(invalid) stable->SetRemote(pranswer)->have-remote-pranswer",
SignalingStateStable,
SignalingStateHaveRemotePranswer,
stateChangeOpSetRemote,
SDPTypePranswer,
&rtcerr.InvalidModificationError{},
},
{
"(invalid) stable->SetRemote(rollback)->have-local-offer",
SignalingStateStable,
SignalingStateHaveLocalOffer,
stateChangeOpSetRemote,
SDPTypeRollback,
&rtcerr.InvalidModificationError{},
},
}
for i, tc := range testCases {
next, err := checkNextSignalingState(tc.current, tc.next, tc.op, tc.sdpType)
if tc.expectedErr != nil {
assert.Error(t, err, "testCase: %d %s", i, tc.desc)
} else {
assert.NoError(t, err, "testCase: %d %s", i, tc.desc)
assert.Equal(t,
tc.next,
next,
"testCase: %d %s", i, tc.desc,
)
}
}
}
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