Add mock show generator and timeline benchmark

cmd/qrunproxy/timeline_test.go

@@ -0,0 +1,52 @@
+package main
+
+import (
+	"encoding/json"
+	"os"
+	"testing"
+)
+
+func TestBuildTimelineFromShowJSON(t *testing.T) {
+	buf, err := os.ReadFile("static/show.json")
+	if err != nil {
+		t.Fatal(err)
+	}
+	var show Show
+	if err := json.Unmarshal(buf, &show); err != nil {
+		t.Fatal(err)
+	}
+	if err := show.Validate(); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := BuildTimeline(&show); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestBuildTimelineFromMockShow(t *testing.T) {
+	show := GenerateMockShow(7, 100, 1000)
+	if err := show.Validate(); err != nil {
+		t.Fatalf("generated show failed validation: %v", err)
+	}
+	tl, err := BuildTimeline(show)
+	if err != nil {
+		t.Fatalf("BuildTimeline failed: %v", err)
+	}
+	if len(tl.Tracks) != 8 {
+		t.Errorf("expected 8 tracks (7 + cue), got %d", len(tl.Tracks))
+	}
+	if len(tl.Blocks) != 1100 {
+		t.Errorf("expected 1100 blocks (100 cues + 1000), got %d", len(tl.Blocks))
+	}
+}
+
+func BenchmarkBuildTimeline(b *testing.B) {
+	show := GenerateMockShow(7, 100, 1000)
+	if err := show.Validate(); err != nil {
+		b.Fatal(err)
+	}
+	b.ResetTimer()
+	for range b.N {
+		BuildTimeline(show)
+	}
+}