Backend: Add tests to pkg/colors

pkg/colors/colorful_test.go

@@ -0,0 +1,32 @@
+package colors
+
+import (
+	"github.com/lucasb-eyer/go-colorful"
+	"github.com/stretchr/testify/assert"
+	"image/color"
+	"testing"
+)
+
+func TestColorful(t *testing.T) {
+	t.Run("purple", func(t *testing.T) {
+		c := color.RGBA{0x6a, 0x1b, 0x9a, 0xff}
+		color, ok := colorful.MakeColor(c)
+
+		if !ok {
+			t.Fatal("ok should be true")
+		}
+
+		assert.Equal(t, "purple", Colorful(color).Name())
+	})
+
+	t.Run("cyan", func(t *testing.T) {
+		c := color.RGBA{0xb2, 0xeb, 0xf2, 0xff}
+		color, ok := colorful.MakeColor(c)
+
+		if !ok {
+			t.Fatal("ok should be true")
+		}
+
+		assert.Equal(t, "cyan", Colorful(color).Name())
+	})
+}

pkg/colors/colors_test.go

@@ -16,7 +16,7 @@ func TestColors_List(t *testing.T) {
 
 func TestColor_Hex(t *testing.T) {
 	assert.Equal(t, "C", Magenta.Hex())
-	assert.Equal(t, 7, Cyan.Hex())
+	assert.Equal(t, "7", Cyan.Hex())
 }
 
 func TestColors_Hex(t *testing.T) {

pkg/colors/luminance_test.go

@@ -8,5 +8,4 @@ import (
 func TestLuminance_Hex(t *testing.T) {
 	lum := Luminance(1)
 	assert.Equal(t, "1", lum.Hex())
-
 }