test: add parse and serialize tests for custom backlight

Author: mishamyrt

features/light/custom_test.go

@@ -0,0 +1,67 @@
+package light_test
+
+import (
+	"testing"
+
+	"github.com/mishamyrt/nuga-lib/features/light"
+	"github.com/mishamyrt/nuga-lib/layout"
+)
+
+var tpl = layout.BacklightTemplate{
+	layout.KeyM: 0,
+	layout.KeyY: 1,
+	layout.KeyR: 2,
+	layout.KeyT: 3,
+}
+
+var colorMap = light.CustomBacklightMap{
+	layout.KeyM: {R: 0xFF, G: 0x00, B: 0x00},
+	layout.KeyY: {R: 0x00, G: 0xFF, B: 0x00},
+	layout.KeyR: {R: 0x00, G: 0x00, B: 0xFF},
+	layout.KeyT: {R: 0xFF, G: 0xFF, B: 0xFF},
+}
+
+func TestParseCustomBacklight(t *testing.T) {
+	t.Parallel()
+	payload := make([]byte, 1050)
+	payload[0] = 0x89
+	for keyName, position := range tpl {
+		payload[7+position] = colorMap[keyName].R
+		payload[7+position+126] = colorMap[keyName].G
+		payload[7+position+252] = colorMap[keyName].B
+	}
+	customMap, err := light.ParseCustomBacklight(payload, &tpl)
+	if err != nil {
+		t.Fatal("unexpected error:", err)
+	}
+	if len(*customMap) != 4 {
+		t.Fatalf("expected 4 colors, got %d", len(*customMap))
+	}
+	for keyName, color := range colorMap {
+		if (*customMap)[keyName] != color {
+			t.Fatalf("expected color %v for key %v, got %v", color, keyName, (*customMap)[keyName])
+		}
+	}
+}
+
+func TestCustomBacklightToBytes(t *testing.T) {
+	t.Parallel()
+	payload := colorMap.Bytes(&tpl)
+	if len(payload) != 1024 {
+		t.Fatalf("expected 1024 bytes, got %d", len(payload))
+	}
+	for keyName, position := range tpl {
+		r := payload[position]
+		g := payload[position+126]
+		b := payload[position+252]
+		if r != colorMap[keyName].R {
+			t.Fatalf("expected R value %v for key %v, got %v", colorMap[keyName].R, keyName, r)
+		}
+		if g != colorMap[keyName].G {
+			t.Fatalf("expected G value %v for key %v, got %v", colorMap[keyName].G, keyName, g)
+		}
+		if b != colorMap[keyName].B {
+			t.Fatalf("expected B value %v for key %v, got %v", colorMap[keyName].B, keyName, b)
+		}
+	}
+}