Make a basic (but real) test for plugin loading

.gitignore

@@ -3,6 +3,8 @@ __pycache__/
 *.py[cod]
 *$py.class
 
+.idea*
+
 # C extensions
 *.so
 

tests/test_plugin_load.py

@@ -1,23 +1,30 @@
-import qgis
 import nose2
 
+from qgis.core import QgsApplication
 from qgis.testing import unittest, start_app
+from qgis.testing.mocked import get_iface
 
 start_app()
 
 class TestPluginLoad(unittest.TestCase):
 
     @classmethod
     def setUpClass(self):
-        print('setUp test_plugin_load')
+        print('INFO: setUp test_plugin_load')
         pass
 
     def test_plugin_load(self):
-        print('Validating plugin load...')
-        self.assertEqual(1, 1)
+        print('INFO: Validating plugin load...')
+
+        from AppendFeaturesToLayer.append_features_to_layer_plugin import AppendFeaturesToLayerPlugin
+        plugin = AppendFeaturesToLayerPlugin(get_iface)
+        plugin.initGui()
+        self.assertIsNotNone(plugin.provider)
+
+        self.assertIn("ETL_LOAD", [provider.name() for provider in QgsApplication.processingRegistry().providers()])
 
     def tearDownClass():
-        print('tearDown test_plugin_load')
+        print('INFO: tearDown test_plugin_load')
 
 if __name__ == '__main__':
     nose2.main()