1 files changed, 7 insertions, 0 deletions
diff --git a/spec/unit/knife/core/ui_spec.rb b/spec/unit/knife/core/ui_spec.rb
index eacca2af2e..58f13ef4a0 100644
--- a/spec/unit/knife/core/ui_spec.rb
+++ b/spec/unit/knife/core/ui_spec.rb
@@ -30,6 +30,7 @@ describe Chef::Knife::UI do
       :format => "summary",
     }
     @ui = Chef::Knife::UI.new(@out, @err, @in, @config)
+    Chef::Config[:treat_deprecation_warnings_as_errors] = false
   end
 
   describe "edit" do
@@ -58,6 +59,12 @@ describe Chef::Knife::UI do
         it "returns a ruby object" do
           expect(subject).to eql(ruby_for_json)
         end
+
+        it "gives a deprecation error" do
+          Chef::Config[:treat_deprecation_warnings_as_errors] = true
+          expect { subject }.to raise_error Chef::Exceptions::DeprecatedFeatureError,
+            /Auto inflation of JSON data is deprecated./
+        end
       end
 
     end