From 6180410cc4758aca5d1a2b459e25e9f9316609fb Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop@gmail.com>
Date: Fri, 30 Nov 2018 23:11:52 -0500
Subject: [PATCH] add spec for Cache validating JSON contents

---
 spec/rscons/cache_spec.rb | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/spec/rscons/cache_spec.rb b/spec/rscons/cache_spec.rb
index 4c15764..e1f5a86 100644
--- a/spec/rscons/cache_spec.rb
+++ b/spec/rscons/cache_spec.rb
@@ -79,5 +79,12 @@ module Rscons
         expect(build_from({}).send(:calculate_checksum, "fname")).to eq "the_checksum"
       end
     end
+
+    describe "#validate_json_object" do
+      it "raises an error when an unexpected object is passed" do
+        cache = build_from({})
+        expect {cache.__send__(:validate_json_object, :symbol)}.to raise_error /Unexpected cache value/
+      end
+    end
   end
 end