chore: fixup

Signed-off-by: Manfred Touron <94029+moul@users.noreply.github.com>

examples/gno.land/r/demo/art/gnoface/gnoface.gno

@@ -1,11 +1,31 @@
 package gnoface
 
 import (
+	"std"
+	"strconv"
 	"strings"
 
 	"gno.land/p/demo/rand"
+	"gno.land/p/demo/ufmt"
 )
 
+func Render(path string) string {
+	seed := std.GetHeight()
+
+	path = strings.TrimSpace(path)
+	if path != "" {
+		s, err := strconv.Atoi(path)
+		if err != nil {
+			panic(err)
+		}
+		seed = int64(s)
+	}
+
+	output := ufmt.Sprintf("Gnoface #%d\n", seed)
+	output += Draw(seed)
+	return output
+}
+
 func Draw(seed int64) string {
 	var (
 		hairs = []string{

examples/gno.land/r/demo/art/gnoface/gnoface_test.gno

@@ -67,3 +67,67 @@ o| ~   ~ |.
 		})
 	}
 }
+
+func TestRender(t *testing.T) {
+	cases := []struct {
+		path     string
+		expected string
+	}{
+		{
+			path: "42",
+			expected: `
+Gnoface #42
+  |||||||
+ ////////\
+ |       |
+ | ~   . |
+)| X   X |.
+ |       |
+ |   C   |
+ |       |
+ |  __/  |
+ |       |
+ \~~~~~~~/`[1:],
+		},
+		{
+			path: "1337",
+			expected: `
+Gnoface #1337
+     s
+ /|||||||\
+ |       |
+ | .   * |
+o| ~   ~ |.
+ |       |
+ |   O   |
+ |       |
+ |  __/  |
+ |       |
+ \_______/`[1:],
+		},
+		{
+			path: "123456789",
+			expected: `
+Gnoface #123456789
+     s
+ /~~~~~~~\
+ |       |
+ | ~   . |
+<| ~   ~ |<
+ |       |
+ |   V   |
+ |       |
+ |  \_/  |
+ |       |
+ \-------/`[1:],
+		},
+	}
+	for _, tc := range cases {
+		t.Run(tc.path, func(t *testing.T) {
+			got := Render(tc.path)
+			if got != tc.expected {
+				t.Errorf("got %s, expected %s", got, tc.expected)
+			}
+		})
+	}
+}