From 9ce28b7f7827aedde3e08167293e4a31c95b2e3b Mon Sep 17 00:00:00 2001
From: Oliver Vogel <oliver@olivervogel.com>
Date: Wed, 1 Dec 2021 18:14:03 +0000
Subject: [PATCH] Added Gd Encoder Test

---
 tests/Drivers/Gd/Encoders/PngEncoderTest.php | 29 ++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 tests/Drivers/Gd/Encoders/PngEncoderTest.php

diff --git a/tests/Drivers/Gd/Encoders/PngEncoderTest.php b/tests/Drivers/Gd/Encoders/PngEncoderTest.php
new file mode 100644
index 00000000..065aa4d6
--- /dev/null
+++ b/tests/Drivers/Gd/Encoders/PngEncoderTest.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace Intervention\Image\Tests\Drivers\Gd\Encoders;
+
+use Intervention\Image\Collection;
+use Intervention\Image\Drivers\Gd\Encoders\PngEncoder;
+use Intervention\Image\Drivers\Gd\Frame;
+use Intervention\Image\Drivers\Gd\Image;
+use Intervention\Image\Tests\TestCase;
+use Intervention\MimeSniffer\MimeSniffer;
+use Intervention\MimeSniffer\Types\ImagePng;
+
+class PngEncoderTest extends TestCase
+{
+    protected function getTestImage(): Image
+    {
+        $frame = new Frame(imagecreatetruecolor(3, 2));
+
+        return new Image(new Collection([$frame]));
+    }
+
+    public function testEncode(): void
+    {
+        $image = $this->getTestImage();
+        $encoder = new PngEncoder();
+        $result = $encoder->encode($image);
+        $this->assertTrue(MimeSniffer::createFromString($result)->matches(new ImagePng));
+    }
+}
\ No newline at end of file