diff --git a/tests/Decoders/SpecializableDecoderTest.php b/tests/Decoders/SpecializableDecoderTest.php
new file mode 100644
index 00000000..f991542d
--- /dev/null
+++ b/tests/Decoders/SpecializableDecoderTest.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Intervention\Image\Tests\Decoders;
+
+use Intervention\Image\Decoders\SpecializableDecoder;
+use Intervention\Image\Exceptions\DecoderException;
+use Intervention\Image\Tests\TestCase;
+use Mockery;
+
+class SpecializableDecoderTest extends TestCase
+{
+    public function testDecode(): void
+    {
+        $decoder = Mockery::mock(SpecializableDecoder::class)->makePartial();
+        $this->expectException(DecoderException::class);
+        $decoder->decode(null);
+    }
+}
diff --git a/tests/ImageManagerTest.php b/tests/ImageManagerTest.php
index 4fc8a220..be494113 100644
--- a/tests/ImageManagerTest.php
+++ b/tests/ImageManagerTest.php
@@ -2,6 +2,7 @@
 
 namespace Intervention\Image\Tests;
 
+use Intervention\Image\Decoders\BinaryImageDecoder;
 use Intervention\Image\Decoders\FilePathImageDecoder;
 use Intervention\Image\Drivers\Gd\Driver as GdDriver;
 use Intervention\Image\Drivers\Imagick\Driver as ImagickDriver;
@@ -88,6 +89,14 @@ class ImageManagerTest extends TestCase
         $this->assertInstanceOf(ImageInterface::class, $image);
     }
 
+    /** @requires extension gd */
+    public function testReadGdWithDecoderInstanceArrayMultiple(): void
+    {
+        $manager = new ImageManager(GdDriver::class);
+        $image = $manager->read(__DIR__ . '/images/red.gif', [new BinaryImageDecoder(), new FilePathImageDecoder()]);
+        $this->assertInstanceOf(ImageInterface::class, $image);
+    }
+
     /** @requires extension imagick */
     public function testCreateImagick()
     {
@@ -135,4 +144,12 @@ class ImageManagerTest extends TestCase
         $image = $manager->read(__DIR__ . '/images/red.gif', [new FilePathImageDecoder()]);
         $this->assertInstanceOf(ImageInterface::class, $image);
     }
+
+    /** @requires extension imagick */
+    public function testReadImagickWithDecoderInstanceArrayMultiple(): void
+    {
+        $manager = new ImageManager(ImagickDriver::class);
+        $image = $manager->read(__DIR__ . '/images/red.gif', [new BinaryImageDecoder(), new FilePathImageDecoder()]);
+        $this->assertInstanceOf(ImageInterface::class, $image);
+    }
 }