diff --git a/searx/tests/test_plugins.py b/searx/tests/test_plugins.py
new file mode 100644
index 0000000..19a02c7
--- /dev/null
+++ b/searx/tests/test_plugins.py
@@ -0,0 +1,51 @@
+# -*- coding: utf-8 -*-
+
+from searx.testing import SearxTestCase
+from searx import plugins
+from mock import Mock
+
+
+class PluginStoreTest(SearxTestCase):
+
+    def test_PluginStore_init(self):
+        store = plugins.PluginStore()
+        self.assertTrue(isinstance(store.plugins, list) and len(store.plugins) == 0)
+
+    def test_PluginStore_register(self):
+        store = plugins.PluginStore()
+        testplugin = plugins.Plugin()
+        store.register(testplugin)
+
+        self.assertTrue(len(store.plugins) == 1)
+
+    def test_PluginStore_call(self):
+        store = plugins.PluginStore()
+        testplugin = plugins.Plugin()
+        store.register(testplugin)
+        setattr(testplugin, 'asdf', Mock())
+        request = Mock(user_plugins=[])
+        store.call('asdf', request, Mock())
+
+        self.assertFalse(testplugin.asdf.called)
+
+        request.user_plugins.append(testplugin)
+        store.call('asdf', request, Mock())
+
+        self.assertTrue(testplugin.asdf.called)
+
+
+class SelfIPTest(SearxTestCase):
+
+    def test_PluginStore_init(self):
+        store = plugins.PluginStore()
+        store.register(plugins.self_ip)
+
+        self.assertTrue(len(store.plugins) == 1)
+
+        request = Mock(user_plugins=store.plugins,
+                       remote_addr='127.0.0.1')
+        request.headers.getlist.return_value = []
+        ctx = {'search': Mock(answers=set(),
+                              query='ip')}
+        store.call('pre_search', request, ctx)
+        self.assertTrue('127.0.0.1' in ctx['search'].answers)