Add tests for the cache api

tests/test_cache.py

@@ -0,0 +1,64 @@
+import unittest
+from slixmpp.test import SlixTest
+from slixmpp.util import (
+    MemoryCache, MemoryPerJidCache,
+    FileSystemCache, FileSystemPerJidCache
+)
+from tempfile import TemporaryDirectory
+
+class TestCacheClass(SlixTest):
+
+    def testMemoryCache(self):
+        cache = MemoryCache()
+
+        cache.store("test", "test_value")
+        self.assertEqual(cache.retrieve("test"), "test_value")
+        self.assertEqual(cache.retrieve("test2"), None)
+
+        cache.remove("test")
+        self.assertEqual(cache.retrieve("test"), None)
+
+    def testMemoryPerJidcache(self):
+        cache = MemoryPerJidCache()
+
+        cache.store_by_jid("test@example.com", "test", "test_value")
+        self.assertEqual(
+            cache.retrieve_by_jid("test@example.com", "test"),
+            "test_value"
+        )
+
+        cache.remove_by_jid("test@example.com", "test")
+        self.assertEqual(
+            cache.retrieve_by_jid("test@example.com", "test"),
+            None
+        )
+
+    def testFileSystemCache(self):
+        with TemporaryDirectory() as tmpdir:
+            cache = FileSystemCache(tmpdir, "test")
+            cache.store("test", "test_value")
+            self.assertEqual(
+                cache.retrieve("test"),
+                "test_value"
+            )
+            cache.remove("test")
+            self.assertEqual(
+                cache.retrieve("test"),
+                None
+            )
+
+    def testFileSystemPerJidCache(self):
+        with TemporaryDirectory() as tmpdir:
+            cache = FileSystemPerJidCache(tmpdir, "test")
+            cache.store_by_jid("test@example.com", "test", "test_value")
+            self.assertEqual(
+                cache.retrieve_by_jid("test@example.com", "test"),
+                "test_value"
+            )
+            cache.remove_by_jid("test@example.com", "test")
+            self.assertEqual(
+                cache.retrieve_by_jid("test@example.com", "test"),
+                None
+            )
+
+suite = unittest.TestLoader().loadTestsFromTestCase(TestCacheClass)