package flamegraph

import "testing"

func TestNewModelDefaults(t *testing.T) {
	m := NewModel(nil)
	if m.liveTrie != nil {
		t.Fatalf("expected nil liveTrie when constructor input is nil")
	}
	if m.matchIndices == nil {
		t.Fatalf("expected matchIndices map to be initialized")
	}
	if len(m.fieldPresets) == 0 {
		t.Fatalf("expected default field presets to be initialized")
	}
	if !m.isDark {
		t.Fatalf("expected dark mode enabled by default")
	}
}

func TestSetViewportAndDarkMode(t *testing.T) {
	m := NewModel(nil)
	m.SetViewport(120, 40)
	m.SetDarkMode(false)
	if m.width != 120 || m.height != 40 {
		t.Fatalf("expected viewport 120x40, got %dx%d", m.width, m.height)
	}
	if m.isDark {
		t.Fatalf("expected dark mode to be disabled")
	}
}