Updated test with stubing cask analytics call

Library/Homebrew/test/cask/cmd/info_spec.rb

@@ -2,6 +2,7 @@
 
 require_relative "shared_examples/requires_cask_token"
 require_relative "shared_examples/invalid_option"
+require_relative "../../../utils"
 
 describe Cask::Cmd::Info, :cask do
   it_behaves_like "a command that requires a Cask token"
@@ -141,6 +142,24 @@ describe Cask::Cmd::Info, :cask do
 
   it "can run be run with a url twice", :needs_network do
     expect {
+      Utils::Analytics.formulae_api_json
+    .should_receive(:endpoint)
+    .with("test")
+    .and_return("{
+      analytics: {
+        install: {
+          30d: {
+            docker: 1000
+          },
+          90d: {
+            docker: 2000
+          },
+          365d: {
+            docker: 3000
+          }
+        }
+      }
+    }")
       described_class.run("https://raw.githubusercontent.com/Homebrew/homebrew-cask" \
                           "/d0b2c58652ae5eff20a7a4ac93292a08b250912b/Casks/docker.rb")
       described_class.run("https://raw.githubusercontent.com/Homebrew/homebrew-cask" \