Add stringers to color structs

color.go

@@ -4,7 +4,6 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"net/http"
 	"strings"
 )
 
@@ -164,6 +163,10 @@ func (c RGBColor) ColorString() string {
 	return fmt.Sprintf("rgb:%d,%d,%d", c.R, c.G, c.B)
 }
 
+func (c RGBColor) String() string {
+	return c.ColorString()
+}
+
 func (c RGBColor) Hex() string {
 	return fmt.Sprintf("#%x%x%x", c.R, c.G, c.B)
 }
@@ -185,6 +188,10 @@ func (c HSBKColor) ColorString() string {
 	return strings.Join(s, " ")
 }
 
+func (c HSBKColor) String() string {
+	return c.ColorString()
+}
+
 func (c HSBKColor) MarshalText() ([]byte, error) {
 	return []byte(c.ColorString()), nil
 }
@@ -197,11 +204,14 @@ func (c NamedColor) ColorString() string {
 	return string(c)
 }
 
+func (c NamedColor) String() string {
+	return c.ColorString()
+}
+
 func (c *Client) ValidateColor(color Color) (Color, error) {
 	var (
 		err  error
 		s    *HSBKColor
-		r    *http.Response
 		resp *Response
 	)
 
@@ -209,13 +219,12 @@ func (c *Client) ValidateColor(color Color) (Color, error) {
 		return nil, err
 	}
 
-	resp, err = NewResponse(r)
-	if err != nil {
-		return nil, err
-	}
-
 	defer resp.Body.Close()
 
+	if resp.IsError() {
+		return nil, resp.GetLifxError()
+	}
+
 	if err = json.NewDecoder(resp.Body).Decode(&s); err != nil {
 		return nil, err
 	}