From c8a51b416f2affb1e6ef256fc254fd78d74d362f Mon Sep 17 00:00:00 2001
From: Tobi-wan Kenobi <github@tobi-wan-kenobi.at>
Date: Fri, 9 Dec 2016 07:41:07 +0100
Subject: [PATCH] [core] Add "Store" interface

Add an interface that allows arbitrary objects to store/retrieve
arbitrary key/value pairs. This will be used for different purposes in
the future:

* Config class(es) can store user-defined parameters for modules
* Widgets can store state
* ???

see #23
---
 bumblebee/store.py  | 18 ++++++++++++++++++
 tests/test_store.py | 24 ++++++++++++++++++++++++
 2 files changed, 42 insertions(+)
 create mode 100644 bumblebee/store.py
 create mode 100644 tests/test_store.py

diff --git a/bumblebee/store.py b/bumblebee/store.py
new file mode 100644
index 0000000..9492c1d
--- /dev/null
+++ b/bumblebee/store.py
@@ -0,0 +1,18 @@
+"""Store interface
+
+Allows arbitrary classes to offer a simple get/set
+store interface by deriving from the Store class in
+this module
+"""
+
+class Store(object):
+    def __init__(self):
+        self._data = {}
+
+    def set(self, key, value):
+        self._data[key] = value
+
+    def get(self, key, default=None):
+        return self._data.get(key, default)
+
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
diff --git a/tests/test_store.py b/tests/test_store.py
new file mode 100644
index 0000000..0b712f0
--- /dev/null
+++ b/tests/test_store.py
@@ -0,0 +1,24 @@
+# pylint: disable=C0103,C0111,W0703
+
+import unittest
+
+from bumblebee.store import Store
+
+class TestStore(unittest.TestCase):
+    def setUp(self):
+        self.store = Store()
+        self.anyKey = "some-key"
+        self.anyValue = "some-value"
+        self.unsetKey = "invalid-key"
+
+    def test_set_value(self):
+        self.store.set(self.anyKey, self.anyValue)
+        self.assertEquals(self.store.get(self.anyKey), self.anyValue)
+
+    def test_get_invalid_value(self):
+        result = self.store.get(self.unsetKey)
+        self.assertEquals(result, None)
+
+    def test_get_invalid_with_default_value(self):
+        result = self.store.get(self.unsetKey, self.anyValue)
+        self.assertEquals(result, self.anyValue)