Initialize project with basic structure, including Docker configuration, backend and frontend setup, environment configuration, and essential files for development.

backend/internal/domain/tournament_test.go

@@ -0,0 +1,45 @@
+package domain
+
+import "testing"
+
+func TestSingleEliminationAdvancement(t *testing.T) {
+	tr, err := NewTournament("cup", "event", "Night Cup", []string{"a", "b", "c", "d"})
+	if err != nil {
+		t.Fatal(err)
+	}
+	tr.Rounds[0][0].WinnerTeamID = "a"
+	if err := tr.Advance(0, 0); err != nil {
+		t.Fatal(err)
+	}
+	tr.Rounds[0][1].WinnerTeamID = "d"
+	if err := tr.Advance(0, 1); err != nil {
+		t.Fatal(err)
+	}
+	if got := tr.Rounds[1][0]; got.TeamAID != "a" || got.TeamBID != "d" {
+		t.Fatalf("unexpected final: %+v", got)
+	}
+	tr.Rounds[1][0].WinnerTeamID = "d"
+	if err := tr.Advance(1, 0); err != nil {
+		t.Fatal(err)
+	}
+	if tr.WinnerTeamID != "d" {
+		t.Fatalf("winner = %q", tr.WinnerTeamID)
+	}
+}
+
+func TestTournamentCreatesByeForNonPowerOfTwo(t *testing.T) {
+	tr, err := NewTournament("cup", "event", "Cup", []string{"a", "b", "c"})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(tr.Rounds) != 2 || len(tr.Rounds[0]) != 2 {
+		t.Fatalf("unexpected bracket shape: %+v", tr.Rounds)
+	}
+	bye := tr.Rounds[0][1]
+	if bye.TeamAID != "b" || bye.TeamBID != "" || bye.WinnerTeamID != "b" {
+		t.Fatalf("unexpected bye: %+v", bye)
+	}
+	if tr.Rounds[1][0].TeamBID != "b" {
+		t.Fatalf("bye was not advanced: %+v", tr.Rounds[1][0])
+	}
+}