add tests

xt/lib/App/NetdiscoX/Worker/Plugin/TestFive.pm

@@ -0,0 +1,17 @@
+package App::NetdiscoX::Worker::Plugin::TestFive;
+
+use Dancer ':syntax';
+use App::Netdisco::Worker::Plugin;
+use aliased 'App::Netdisco::Worker::Status';
+
+# info 'test: add to an action';
+
+register_worker({ phase => 'main', driver => 'snmp' }, sub {
+  return Status->error('NOT OK: additional worker at SNMP level.');
+});
+
+register_worker({ phase => 'main', driver => 'snmp' }, sub {
+  return Status->done('OK: SNMP driver is successful.');
+});
+
+true;

xt/lib/App/NetdiscoX/Worker/Plugin/TestFour.pm

@@ -0,0 +1,17 @@
+package App::NetdiscoX::Worker::Plugin::TestFour;
+
+use Dancer ':syntax';
+use App::Netdisco::Worker::Plugin;
+use aliased 'App::Netdisco::Worker::Status';
+
+# info 'test: override an action';
+
+register_worker({ phase => 'main', driver => 'snmp' }, sub {
+  return Status->done('NOT OK: SNMP driver should NOT be run.');
+});
+
+register_worker({ phase => 'main', priority => 120 }, sub {
+  return Status->done('OK: custom driver is successful.');
+});
+
+true;

xt/lib/App/NetdiscoX/Worker/Plugin/TestThree.pm

@@ -0,0 +1,17 @@
+package App::NetdiscoX::Worker::Plugin::TestThree;
+
+use Dancer ':syntax';
+use App::Netdisco::Worker::Plugin;
+use aliased 'App::Netdisco::Worker::Status';
+
+# info 'test: respect user config filtering the driver, action and namespace';
+
+register_worker({ phase => 'main', driver => 'cli' }, sub {
+  return Status->done('NOT OK: CLI driver should NOT be run.');
+});
+
+register_worker({ phase => 'main', driver => 'snmp' }, sub {
+  return Status->done('OK: SNMP driver is successful.');
+});
+
+true;