1 files changed, 10 insertions, 0 deletions
diff --git a/spec/ruby/core/string/unpack/w_spec.rb b/spec/ruby/core/string/unpack/w_spec.rb
index 166ae58869..011c75f5c4 100644
--- a/spec/ruby/core/string/unpack/w_spec.rb
+++ b/spec/ruby/core/string/unpack/w_spec.rb
@@ -23,3 +23,13 @@ describe "String#unpack with directive 'w'" do
     "\x01\x02\x03".unpack("w w").should == [1, 2]
   end
 end
+
+describe "String#unpack with directive 'w*'" do
+
+  it "decodes BER-compressed integers" do
+    "\x01\x02\x03\x04".unpack("w*").should == [1, 2, 3, 4]
+    "\x00\xCE\x0F\x84\x80\x80\x80\x80\x80\x80\x80\x80\x00\x01\x00".unpack("w*").should == [0, 9999, 2**65, 1, 0]
+    "\x81\x80\x80\x80\x80\x80\x80\x80\x80\x00\x90\x80\x80\x80\x80\x80\x80\x80\x03\x01\x02".unpack("w*").should == [2**63, (2**60 + 3), 1, 2]
+  end
+
+end