First prototype for integration tests

Working on #32

requirements.txt

@@ -5,3 +5,4 @@ pyparsing==2.0.3
 python2-pythondialog==3.0.1
 configobj==5.0.6
 six==1.10.0
+mock==2.0.0

test/mockdialog.py

@@ -0,0 +1,47 @@
+from contextlib import contextmanager
+from functools import partial
+
+import mock
+import dialog
+
+PATCH_FUNCTIONS = ('yesno',)
+
+class UserBehavior(object):
+    def __init__(self):
+        self._handlers = []
+
+    def expect(self,
+               function_name,
+               return_value,
+               callback=None):
+        def handler(actual_function_name, *args, **kwargs):
+            assert actual_function_name == function_name,\
+                "Expected call of {}, got {}!".format(function_name, actual_function_name)
+            if callback is not None:
+                callback(*args, **kwargs)
+            return return_value
+        self._handlers.append(handler)
+
+    def expect_yesno(self, answer):
+        return_value = dialog.Dialog.OK if answer else dialog.Dialog.CANCEL
+        self.expect('yesno', return_value)
+
+    def _side_effect_handler(self, function_name, *args, **kwargs):
+        assert self._handlers, "Got call of {}, but no handlers are defined!".format(function_name)
+        handler = self._handlers.pop()
+        return handler(function_name, *args, **kwargs)
+
+    def _start_mock(self, function_name):
+        target = 'dialog.Dialog.{}'.format(function_name)
+        patcher = mock.patch(target, side_effect=partial(self._side_effect_handler, function_name))
+        patcher.start()
+        return patcher
+
+    @contextmanager
+    def simulate(self):
+        patchers = [self._start_mock(function) for function in PATCH_FUNCTIONS]
+        try:
+            yield
+        finally:
+            for patcher in patchers:
+                patcher.stop()

test/test_menu_privacyidea.py

@@ -0,0 +1,15 @@
+import unittest
+from dialog import Dialog
+
+import mock
+
+from mockdialog import UserBehavior
+
+class TestMenuPrivacyIDEA(unittest.TestCase):
+    def test_invocation(self):
+        user = UserBehavior()
+        user.expect('yesno', Dialog.CANCEL)
+        with user.simulate():
+            d = Dialog()
+            code = d.yesno('hello!', width=70)
+            print 'code is ', code