fix font modifiers test coverage and style nitpicks

cell/cell_test.go

@@ -80,12 +80,16 @@ func TestNewOptions(t *testing.T) {
 				Italic(),
 				Underline(),
 				Strikethrough(),
+				Inverse(),
+				Blink(),
 			},
 			want: &Options{
 				Bold:          true,
 				Italic:        true,
 				Underline:     true,
 				Strikethrough: true,
+				Inverse:       true,
+				Blink:         true,
 			},
 		},
 	}

terminal/tcell/cell_options.go

@@ -63,6 +63,13 @@ func cellOptsToStyle(opts *cell.Options, colorMode terminalapi.ColorMode) tcell.
 	fg := cellColor(colorToMode(opts.FgColor, colorMode))
 	bg := cellColor(colorToMode(opts.BgColor, colorMode))
 
-	st = st.Foreground(fg).Background(bg).Bold(opts.Bold).Italic(opts.Italic).Underline(opts.Underline).StrikeThrough(opts.Strikethrough).Reverse(opts.Inverse).Blink(opts.Blink)
+	st = st.Foreground(fg).
+		Background(bg).
+		Bold(opts.Bold).
+		Italic(opts.Italic).
+		Underline(opts.Underline).
+		StrikeThrough(opts.Strikethrough).
+		Reverse(opts.Inverse).
+		Blink(opts.Blink)
 	return st
 }

terminal/termbox/cell_options.go

@@ -49,21 +49,21 @@ func cellOptsToFg(opts *cell.Options) (tbx.Attribute, error) {
 	if opts.Bold {
 		a |= tbx.AttrBold
 	}
-	// FIXME: Termbox doesn't have an italics attribute
+	// Termbox doesn't have an italics attribute
 	if opts.Italic {
 		return 0, errors.New("Termbox: Unsupported attribute: Italic")
 	}
 	if opts.Underline {
 		a |= tbx.AttrUnderline
 	}
-	// FIXME: Termbox doesn't have a strikethrough attribute
+	// Termbox doesn't have a strikethrough attribute
 	if opts.Strikethrough {
 		return 0, errors.New("Termbox: Unsupported attribute: Strikethrough")
 	}
 	if opts.Inverse {
 		a |= tbx.AttrReverse
 	}
-	// FIXME: Termbox doesn't have a blink attribute
+	// Termbox doesn't have a blink attribute
 	if opts.Blink {
 		return 0, errors.New("Termbox: Unsupported attribute: Blink")
 	}

terminal/termbox/cell_options_test.go

@@ -60,7 +60,7 @@ func TestCellFontModifier(t *testing.T) {
 		{cell.Options{Underline: true}, tbx.AttrUnderline, false},
 		{cell.Options{Italic: true}, 0, true},
 		{cell.Options{Strikethrough: true}, 0, true},
-		{cell.Options{Inverse: true}, tbx.AttrReverse, true},
+		{cell.Options{Inverse: true}, tbx.AttrReverse, false},
 		{cell.Options{Blink: true}, 0, true},
 	}