Improved tests

Color_test.go

@@ -1,7 +1,7 @@
 package color_test
 
 import (
-	"os"
+	"io"
 	"testing"
 
 	"git.akyoto.dev/go/assert"
@@ -9,6 +9,16 @@ import (
 )
 
 func TestColors(t *testing.T) {
+	color.Terminal = true
+	testColors(t)
+}
+
+func TestNoColors(t *testing.T) {
+	color.Terminal = false
+	testColors(t)
+}
+
+func testColors(t *testing.T) {
 	colors := map[string]color.Color{
 		"black": color.RGB(0.0, 0.0, 0.0),
 		"white": color.RGB(1.0, 1.0, 1.0),
@@ -26,14 +36,8 @@ func TestColors(t *testing.T) {
 		assert.True(t, value.G <= 1.0)
 		assert.True(t, value.B <= 1.0)
 
-		color.Terminal = true
-		value.Fprint(os.Stdout, name)
+		value.Fprint(io.Discard, name)
 		value.Print(name)
 		value.Println(name)
-
-		color.Terminal = false
-		value.Fprint(os.Stdout, "-")
-		value.Print("-")
-		value.Println("-")
 	}
 }