From a0808275f8b28ef6602ec8b1ba03687a4ba99fce Mon Sep 17 00:00:00 2001
From: Stephen Sykes <sdsykes@gmail.com>
Date: Thu, 3 Nov 2016 12:29:20 +0200
Subject: [PATCH] Add test for invalid ico files

---
 test/test.rb | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/test/test.rb b/test/test.rb
index ab9fb30..2da6c98 100644
--- a/test/test.rb
+++ b/test/test.rb
@@ -358,4 +358,11 @@ class FastImageTest < Test::Unit::TestCase
     url = "#{TestUrl}test.gif"
     assert_equal 1, FastImage.new(url).orientation
   end
+  
+  def test_should_raise_when_handling_invalid_ico_files
+    stringio = StringIO.new("\x00\x00003")
+    assert_raises(FastImage::UnknownImageType) do
+      FastImage.type(stringio, :raise_on_failure => true)
+    end
+  end
 end