(PDOC-25) Add tests to ensure namespaces are correct

Prior to this commit, there were no tests to check if namespaces
were being properly generated (which was why we did not catch the
bug earlier). Add a test for defined type and host class handlers
to ensure that namespaces are properly generated in code objects.

spec/unit/puppet_x/puppetlabs/strings/yard/defined_type_handler_spec.rb

@@ -58,4 +58,17 @@ describe PuppetX::PuppetLabs::Strings::YARD::Handlers::DefinedTypeHandler do
 
     expect(YARD::Registry.all).to be_empty
   end
+
+  it "should generate the correct namespace " do
+    puppet_code =  <<-PUPPET
+        define puppet_enterprise::mcollective::client::certs { }
+    PUPPET
+
+    parse(puppet_code, :puppet)
+    # If the namespace is not correctly generated, we will not be able to find the
+    # object via this name, meaning namespace will be nil
+    namespace = YARD::Registry.at("puppet_enterprise::mcollective::client::certs").namespace.to_s
+
+    expect(namespace).to_not be_nil
+  end
 end

spec/unit/puppet_x/puppetlabs/strings/yard/host_class_handler_spec.rb

@@ -46,4 +46,17 @@ describe PuppetX::PuppetLabs::Strings::YARD::Handlers::HostClassHandler do
 
     expect(the_hostclass).to document_a(:type => :hostclass, :docstring => "")
   end
+
+  it "should generate the correct namespace " do
+    puppet_code =  <<-PUPPET
+        class puppet_enterprise::mcollective::client::certs { }
+    PUPPET
+
+    parse(puppet_code, :puppet)
+    # If the namespace is not correctly generated, we will not be able to find the
+    # object via this name, meaning namespace will be nil
+    namespace = YARD::Registry.at("puppet_enterprise::mcollective::client::certs")
+
+    expect(namespace).to_not be_nil
+  end
 end