diff --git a/tests/DisposalMethodTest.php b/tests/DisposalMethodTest.php
new file mode 100644
index 0000000..6e3dccc
--- /dev/null
+++ b/tests/DisposalMethodTest.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace Intervention\Gif\Test;
+
+use Intervention\Gif\DisposalMethod;
+use PHPUnit\Framework\TestCase;
+
+class DisposalMethodTest extends TestCase
+{
+    public function testIntegerValues(): void
+    {
+        $this->assertEquals(0, DisposalMethod::UNDEFINED->value);
+        $this->assertEquals(1, DisposalMethod::NONE->value);
+        $this->assertEquals(2, DisposalMethod::BACKGROUND->value);
+        $this->assertEquals(3, DisposalMethod::PREVIOUS->value);
+    }
+}