Add CBOR UUID encoding and decoding tests.

spec/cbor_uuid.cr

@@ -0,0 +1,15 @@
+require "./spec_helper"
+
+describe CBOR do
+  describe "UUID" do
+    it "UUID#to_cbor" do
+      uuid = UUID.new "fc47eb8e-b13c-481e-863a-8f8c47a550f2"
+      uuid.to_cbor.hexstring.should eq "50fc47eb8eb13c481e863a8f8c47a550f2"
+    end
+
+    it "UUID#from_cbor" do
+      uuid = UUID.from_cbor "50fc47eb8eb13c481e863a8f8c47a550f2".hexbytes
+      uuid.to_cbor.hexstring.should eq "50fc47eb8eb13c481e863a8f8c47a550f2"
+    end
+  end
+end