add tests for font modifier cell options

terminal/tcell/cell_options_test.go

@@ -141,6 +141,21 @@ func TestCellOptsToStyle(t *testing.T) {
 			opts:      cell.Options{FgColor: cell.ColorWhite, BgColor: cell.ColorBlack},
 			want:      tcell.StyleDefault.Foreground(tcell.Color23).Background(tcell.Color16),
 		},
+		{
+			colorMode: terminalapi.ColorModeNormal,
+			opts:      cell.Options{Bold: true},
+			want:      tcell.StyleDefault.Bold(true),
+		},
+		{
+			colorMode: terminalapi.ColorModeNormal,
+			opts:      cell.Options{Italic: true},
+			want:      tcell.StyleDefault.Italic(true),
+		},
+		{
+			colorMode: terminalapi.ColorModeNormal,
+			opts:      cell.Options{Underline: true},
+			want:      tcell.StyleDefault.Underline(true),
+		},
 	}
 
 	for _, tc := range tests {

terminal/termbox/cell_options_test.go

@@ -15,6 +15,7 @@
 package termbox
 
 import (
+	"fmt"
 	"testing"
 
 	"github.com/mum4k/termdash/cell"
@@ -48,3 +49,25 @@ func TestCellColor(t *testing.T) {
 		})
 	}
 }
+
+func TestCellFontModifier(t *testing.T) {
+	tests := []struct {
+		opt  cell.Options
+		want tbx.Attribute
+	}{
+		{cell.Options{Bold: true}, tbx.AttrBold},
+		{cell.Options{Underline: true}, tbx.AttrUnderline},
+	}
+
+	for _, tc := range tests {
+		t.Run(fmt.Sprintf("%v", tc.opt), func(t *testing.T) {
+			got, err := cellOptsToFg(&tc.opt)
+			if err != nil {
+				t.Errorf("cellOptsToFg(%v) failed: %s", tc.opt, err)
+			}
+			if got != tc.want {
+				t.Errorf("cellOptsToFg(%v) => got %v, want %v", tc.opt, got, tc.want)
+			}
+		})
+	}
+}