add _get_config test case.

tests/commands/test_command.py

@@ -0,0 +1,34 @@
+# -*- coding:utf-8 -*-
+import os
+import tempfile
+
+from flexmock import flexmock
+
+from orator.commands.command import Command
+
+from . import OratorCommandTestCase
+
+
+class FooCommand(Command):
+    """
+    Test Command
+    """
+    name = 'foo'
+
+    def handle(self):
+        pass
+
+
+class CommandTestCase(OratorCommandTestCase):
+    def test_get_py_config_and_require___file__(self):
+        filename = tempfile.mktemp('.py')
+        with open(filename, 'w') as f:
+            f.write('foo = __file__')
+
+        command = flexmock(FooCommand())
+        command.should_call('_get_config').and_return({'foo': filename})
+
+        self.run_command(command, [('-c', filename)])
+
+        if os.path.exists(filename):
+            os.remove(filename)