Warn user when initial connection to Fedora fails and the URL does no…

…t end with /rest

lib/active_fedora/fedora.rb

@@ -26,6 +26,9 @@ def init_base_path
         ActiveFedora::Base.logger.info "Attempted to init base path `#{root_resource_path}`, but it already exists" if ActiveFedora::Base.logger
         return false
     rescue Ldp::NotFound
+      if !host.downcase.end_with?("/rest")
+        ActiveFedora::Base.logger.warn "Fedora URL (#{host}) does not end with /rest. This could be the problem. Check your fedora.yml config"
+      end
       connection.put(root_resource_path, BLANK).success?
     end
 

spec/unit/active_fedora_spec.rb

@@ -15,6 +15,24 @@
     restore_spec_configuration
   end
 
+  describe "validate Fedora URL" do 
+
+    let(:good_url) { ActiveFedora.fedora_config.credentials[:url] }
+    let(:bad_url) { good_url.gsub('/rest', '/') }
+
+    it "should connect OK" do 
+      expect(ActiveFedora::Base.logger).to_not receive(:warn)
+      ActiveFedora::Fedora.new(:url => good_url, :base_path => '/test')
+    end
+
+    it "should not connect and warn" do 
+      expect {
+        expect(ActiveFedora::Base.logger).to receive(:warn)
+        ActiveFedora::Fedora.new(:url => bad_url, :base_path => '/test')
+      }.to raise_error Ldp::HttpError 
+    end
+  end
+
   describe "initialization methods" do
     describe "environment" do
       it "should use config_options[:environment] if set" do