Python 3 compatible

There are also some slight changes to the JSON schemas and the use of
JSON-LD.

tests/test_extensions.py

@@ -0,0 +1,84 @@
+from __future__ import print_function
+import os
+import logging
+
+from senpy.extensions import Senpy
+from flask import Flask
+from flask.ext.testing import TestCase
+
+
+class ExtensionsTest(TestCase):
+
+    def create_app(self):
+        self.app = Flask("test_extensions")
+        self.dir = os.path.join(os.path.dirname(__file__))
+        self.senpy = Senpy(plugin_folder=self.dir, default_plugins=False)
+        self.senpy.init_app(self.app)
+        self.senpy.activate_plugin("Dummy", sync=True)
+        return self.app
+
+    def test_init(self):
+        """ Initialising the app with the extension.  """
+        assert hasattr(self.app, "senpy")
+        tapp = Flask("temp app")
+        self.senpy.init_app(tapp)
+        assert hasattr(tapp, "senpy")
+
+    def test_discovery(self):
+        """ Discovery of plugins in given folders.  """
+        # noinspection PyProtectedMember
+        assert self.dir in self.senpy._search_folders
+        print(self.senpy.plugins)
+        assert "Dummy" in self.senpy.plugins
+
+    def test_enabling(self):
+        """ Enabling a plugin """
+        self.senpy.activate_all(sync=True)
+        assert len(self.senpy.plugins) == 2
+        assert self.senpy.plugins["Sleep"].is_activated
+
+    def test_disabling(self):
+        """ Disabling a plugin """
+        self.senpy.deactivate_all(sync=True)
+        assert not self.senpy.plugins["Dummy"].is_activated
+        assert not self.senpy.plugins["Sleep"].is_activated
+
+    def test_default(self):
+        """ Default plugin should be set """
+        assert self.senpy.default_plugin
+        assert self.senpy.default_plugin.name == "Dummy"
+        self.senpy.deactivate_all(sync=True)
+        logging.debug("Default: {}".format(self.senpy.default_plugin))
+        assert self.senpy.default_plugin is None
+
+    def test_noplugin(self):
+        """ Don't analyse if there isn't any plugin installed """
+        self.senpy.deactivate_all(sync=True)
+        resp = self.senpy.analyse(input="tupni")
+        logging.debug("Response: {}".format(resp))
+        assert resp.status == 404
+
+    def test_analyse(self):
+        """ Using a plugin """
+        # I was using mock until plugin started inheriting
+        # Leaf (defaultdict with  __setattr__ and __getattr__.
+        r1 = self.senpy.analyse(
+            algorithm="Dummy", input="tupni", output="tuptuo")
+        r2 = self.senpy.analyse(input="tupni", output="tuptuo")
+        assert r1.analysis[0].id[:5] == "Dummy"
+        assert r2.analysis[0].id[:5] == "Dummy"
+        for plug in self.senpy.plugins:
+            self.senpy.deactivate_plugin(plug, sync=True)
+        resp = self.senpy.analyse(input="tupni")
+        logging.debug("Response: {}".format(resp))
+        assert resp.status == 404
+
+
+    def test_filtering(self):
+        """ Filtering plugins """
+        assert len(self.senpy.filter_plugins(name="Dummy")) > 0
+        assert not len(self.senpy.filter_plugins(name="notdummy"))
+        assert self.senpy.filter_plugins(name="Dummy", is_activated=True)
+        self.senpy.deactivate_plugin("Dummy", sync=True)
+        assert not len(
+            self.senpy.filter_plugins(name="Dummy", is_activated=True))