add tests for config-module

test/test_config.py

@@ -0,0 +1,49 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+# Copyright 2015 Mike Fährmann
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+
+import unittest
+import gallery_dl.config as config
+import os
+import tempfile
+
+class TestConfig(unittest.TestCase):
+
+    def setUp(self):
+        fd, self._configfile = tempfile.mkstemp()
+        with os.fdopen(fd, "w") as file:
+            file.write('{"a": "1", "b": {"c": "text"}}')
+        config.load(self._configfile)
+
+    def tearDown(self):
+        config.clear()
+        os.remove(self._configfile)
+
+    def test_get(self):
+        self.assertEqual(config.get("a"), "1")
+        self.assertEqual(config.get("b.c"), "text")
+        self.assertEqual(config.get("d"), None)
+        self.assertEqual(config.get("e.f.g", 123), 123)
+
+    def test_set(self):
+        config.set("b.c", [1, 2, 3])
+        config.set("e.f.g", 234)
+        self.assertEqual(config.get("b.c"), [1, 2, 3])
+        self.assertEqual(config.get("e.f.g"), 234)
+
+    def test_interpolate(self):
+        self.assertEqual(config.interpolate("a"), "1")
+        self.assertEqual(config.interpolate("b.a"), "1")
+        self.assertEqual(config.interpolate("b.c", "2"), "text")
+        self.assertEqual(config.interpolate("b.d", "2"), "2")
+        config.set("d", 123)
+        self.assertEqual(config.interpolate("b.d", "2"), 123)
+        self.assertEqual(config.interpolate("d.d", "2"), 123)
+
+if __name__ == '__main__':
+    unittest.main()