Add color processor tests

tests/Drivers/Gd/ColorProcessorTest.php

@@ -0,0 +1,42 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Intervention\Image\Tests\Drivers\Gd;
+
+use Intervention\Image\Colors\Rgb\Channels\Alpha;
+use Intervention\Image\Colors\Rgb\Channels\Blue;
+use Intervention\Image\Colors\Rgb\Channels\Green;
+use Intervention\Image\Colors\Rgb\Channels\Red;
+use Intervention\Image\Colors\Rgb\Color;
+use Intervention\Image\Drivers\Gd\ColorProcessor;
+use Intervention\Image\Exceptions\ColorException;
+use Intervention\Image\Tests\TestCase;
+
+class ColorProcessorTest extends TestCase
+{
+    public function testColorToNative(): void
+    {
+        $processor = new ColorProcessor();
+        $result = $processor->colorToNative(new Color(255, 55, 0, 255));
+        $this->assertEquals(16725760, $result);
+    }
+
+    public function testNativeToColor(): void
+    {
+        $processor = new ColorProcessor();
+        $result = $processor->nativeToColor(16725760);
+        $this->assertInstanceOf(Color::class, $result);
+        $this->assertEquals(255, $result->channel(Red::class)->value());
+        $this->assertEquals(55, $result->channel(Green::class)->value());
+        $this->assertEquals(0, $result->channel(Blue::class)->value());
+        $this->assertEquals(255, $result->channel(Alpha::class)->value());
+    }
+
+    public function testNativeToColorInvalid(): void
+    {
+        $processor = new ColorProcessor();
+        $this->expectException(ColorException::class);
+        $processor->nativeToColor('test');
+    }
+}

tests/Drivers/Imagick/ColorProcessorTest.php

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+<?php
+
+declare(strict_types=1);
+
+namespace Intervention\Image\Tests\Drivers\Imagick;
+
+use ImagickPixel;
+use Intervention\Image\Colors\Rgb\Color;
+use Intervention\Image\Colors\Rgb\Colorspace;
+use Intervention\Image\Drivers\Imagick\ColorProcessor;
+use Intervention\Image\Tests\TestCase;
+
+class ColorProcessorTest extends TestCase
+{
+    public function testColorToNative(): void
+    {
+        $processor = new ColorProcessor(new Colorspace());
+        $result = $processor->colorToNative(new Color(255, 55, 0, 255));
+        $this->assertInstanceOf(ImagickPixel::class, $result);
+    }
+
+    public function testNativeToColor(): void
+    {
+        $processor = new ColorProcessor(new Colorspace());
+        $result = $processor->nativeToColor(new ImagickPixel('rgb(255, 55, 0)'));
+    }
+}