diff --git a/internal/cops/display/render_test.go b/internal/cops/display/render_test.go
index 7373613..3731c71 100644
--- a/internal/cops/display/render_test.go
+++ b/internal/cops/display/render_test.go
@@ -3,6 +3,7 @@ package display_test
 import (
 	"image"
 	"image/color"
+	"strings"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -44,3 +45,28 @@ func TestRender_blankAndMultiRuneCellOver(t *testing.T) {
 	buf, cur = RenderOver(buf, cur, front, back, Model0)
 	assert.Equal(t, []byte(" "+whiteHand+"\r\033[2C "), buf)
 }
+
+func TestRender_model8(t *testing.T) {
+	dis := New(image.Rect(0, 0, 16, 8))
+	for y := 0; y < 8; y++ {
+		b := Colors[y]
+		for x := 0; x < 16; x++ {
+			f := Colors[x/2]
+			dis.SetRGBA(x, y, "<", f, b)
+			x++
+			dis.SetRGBA(x, y, ">", f, b)
+		}
+	}
+	// TODO also cur = Start
+	buf, _ := Render(nil, Reset, dis, Model3)
+	assert.Equal(t, []string{
+		"<><><><><><><><>",
+		"<><><><><><><><>",
+		"<><><><><><><><>",
+		"<><><><><><><><>",
+		"<><><><><><><><>",
+		"<><><><><><><><>",
+		"<><><><><><><><>",
+		"<><><><><><><><>",
+	}, strings.Split(string(buf), "\r\n"))
+}