Validate API key in before_all

test/test_case.rb

@@ -1,12 +1,23 @@
 # frozen_string_literal: true
 
 require 'minitest/autorun'
+require 'minitest/hooks/test'
 require_relative '../lib/ontologies_api_client'
 require_relative '../config/config'
 
 module LinkedData
   module Client
     class TestCase < Minitest::Test
+      include Minitest::Hooks
+
+      def before_all
+        super
+        params = { q: 'Conceptual Entity', ontologies: 'STY', require_exact_match: 'true', display_links: 'false' }
+        response = LinkedData::Client::HTTP.get('/search', params)
+        if response.respond_to?('status') && response.status.eql?(401)
+          abort('ABORTED! You must provide a valid API key.')
+        end
+      end
     end
   end
 end