Add support for :emoji: (#92)

glamour_test.go

@@ -3,6 +3,7 @@ package glamour
 import (
 	"bytes"
 	"io/ioutil"
+	"strings"
 	"testing"
 )
 
@@ -90,6 +91,28 @@ func TestTermRenderer(t *testing.T) {
 	}
 }
 
+func TestWithEmoji(t *testing.T) {
+	r, err := NewTermRenderer(
+		WithEmoji(),
+	)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	b, err := r.Render(":+1:")
+	if err != nil {
+		t.Fatal(err)
+	}
+	b = strings.TrimSpace(b)
+
+	// Thumbs up unicode character
+	td := "\U0001f44d"
+
+	if td != b {
+		t.Errorf("Rendered output doesn't match!\nExpected: `\n%s`\nGot: `\n%s`\n", td, b)
+	}
+}
+
 func TestStyles(t *testing.T) {
 	_, err := NewTermRenderer(
 		WithAutoStyle(),