config: Start adding basic data loading test

tests/config/config_test.py

@@ -0,0 +1,49 @@
+from __future__ import unicode_literals
+
+from mopidy import config
+
+from tests import unittest, path_to_data_dir
+
+
+class LoadConfigTest(unittest.TestCase):
+    def test_load_nothing(self):
+        self.assertEqual({}, config._load([], [], []))
+
+    def test_load_single_default(self):
+        default = '[foo]\nbar = baz'
+        expected = {'foo': {'bar': 'baz'}}
+        result = config._load([], [default], [])
+        self.assertEqual(expected, result)
+
+    def test_load_defaults(self):
+        default1 = '[foo]\nbar = baz'
+        default2 = '[foo2]\n'
+        expected = {'foo': {'bar': 'baz'}, 'foo2': {}}
+        result = config._load([], [default1, default2], [])
+        self.assertEqual(expected, result)
+
+    def test_load_single_override(self):
+        override = ('foo', 'bar', 'baz')
+        expected = {'foo': {'bar': 'baz'}}
+        result = config._load([], [], [override])
+        self.assertEqual(expected, result)
+
+    def test_load_overrides(self):
+        override1 = ('foo', 'bar', 'baz')
+        override2 = ('foo2', 'bar', 'baz')
+        expected = {'foo': {'bar': 'baz'}, 'foo2': {'bar': 'baz'}}
+        result = config._load([], [], [override1, override2])
+        self.assertEqual(expected, result)
+
+    def test_load_single_file(self):
+        file1 = path_to_data_dir('file1.conf')
+        expected = {'foo': {'bar': 'baz'}}
+        result = config._load([file1], [], [])
+        self.assertEqual(expected, result)
+
+    def test_load_files(self):
+        file1 = path_to_data_dir('file1.conf')
+        file2 = path_to_data_dir('file2.conf')
+        expected = {'foo': {'bar': 'baz'}, 'foo2': {'bar': 'baz'}}
+        result = config._load([file1, file2], [], [])
+        self.assertEqual(expected, result)

tests/data/file1.conf

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+[foo]
+bar = baz

tests/data/file2.conf

@@ -0,0 +1,2 @@
+[foo2]
+bar = baz