sync: migrate ai-operator to Gitea (2026-08-10)

internal/dialogue/state/machine_test.go

@@ -0,0 +1,59 @@
+package state
+
+import "testing"
+
+func TestValidTransitions(t *testing.T) {
+	m := NewMachine(ConversationSession{CallID: "c"})
+	steps := []ConversationEvent{
+		{Type: EventCallStarted},
+		{Type: EventGreetingPlayed},
+		{Type: EventLanguageSelected, Language: LanguageRU},
+		{Type: EventRegionSelected, Region: RegionSelection{Code: "almaty_city", Status: RegionSelected}},
+		{Type: EventQuestionReceived, Question: "q"},
+		{Type: EventAnswerCompleted},
+		{Type: EventHandoffRequested},
+		{Type: EventCallEnded},
+	}
+	want := []ConversationState{StateGreeting, StateReadyToHelp, StateReadyToHelp, StateReadyToHelp, StateQuestionAnswering, StateReadyToHelp, StateHandoff, StateEnded}
+	for i, step := range steps {
+		res, err := m.Apply(step)
+		if err != nil {
+			t.Fatalf("step %d: %v", i, err)
+		}
+		if res.To != want[i] {
+			t.Fatalf("step %d state=%s want=%s", i, res.To, want[i])
+		}
+	}
+	if len(m.Session().TransitionHistory) != len(steps) {
+		t.Fatalf("transition history length mismatch")
+	}
+}
+
+func TestInvalidTransitionsDoNotMutate(t *testing.T) {
+	m := NewMachine(ConversationSession{CallID: "c"})
+	if _, err := m.Apply(ConversationEvent{Type: EventQuestionReceived}); err == nil {
+		t.Fatal("expected invalid transition")
+	}
+	if m.CurrentState() != StateCallStarted {
+		t.Fatalf("state mutated to %s", m.CurrentState())
+	}
+	_, _ = m.Apply(ConversationEvent{Type: EventCallEnded})
+	if _, err := m.Apply(ConversationEvent{Type: EventLanguageSelected, Language: LanguageRU}); err == nil {
+		t.Fatal("expected ended state error")
+	}
+	if m.CurrentState() != StateEnded {
+		t.Fatalf("ended state mutated to %s", m.CurrentState())
+	}
+}
+
+func TestQuestionAllowedWithoutExplicitLanguageAndRegion(t *testing.T) {
+	m := NewMachine(ConversationSession{CallID: "c", State: StateRegionSelection, Language: LanguageRU})
+	if _, err := m.Apply(ConversationEvent{Type: EventQuestionReceived}); err == nil {
+		t.Fatal("region selection state should not answer directly")
+	}
+	m = NewMachine(ConversationSession{CallID: "c", State: StateReadyToHelp, Region: RegionSelection{Code: "almaty_city", Status: RegionSelected}})
+	if _, err := m.Apply(ConversationEvent{Type: EventQuestionReceived}); err == nil {
+		return
+	}
+	t.Fatal("question should be allowed without explicit language")
+}