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authorIvan Alejandro <ivanalejandro0@yahoo.com.ar>2013-06-24 16:09:59 -0300
committerIvan Alejandro <ivanalejandro0@yahoo.com.ar>2013-06-24 16:09:59 -0300
commit3def1e7b086f8048d2b07158ee1fc6c8bd2b506e (patch)
treeef56754405a9d3803e54e36d16ca201bbb951230 /src/leap/util
parenta628dcbc372161d979548c09a3cb22f6878c8bd1 (diff)
Add PySide tests helper.
Look at https://github.com/jasonmccampbell/PySide/blob/master/tests/signals/signal_emission_gui_test.py for an usage example. The original file is: PySide/tests/util/helper/__init__.py
Diffstat (limited to 'src/leap/util')
-rw-r--r--src/leap/util/pyside_tests_helper.py133
1 files changed, 133 insertions, 0 deletions
diff --git a/src/leap/util/pyside_tests_helper.py b/src/leap/util/pyside_tests_helper.py
new file mode 100644
index 00000000..a010934a
--- /dev/null
+++ b/src/leap/util/pyside_tests_helper.py
@@ -0,0 +1,133 @@
+
+'''Helper classes and functions'''
+
+import os
+import unittest
+
+from random import randint
+
+from PySide.QtCore import QCoreApplication, QTimer
+
+try:
+ from PySide.QtGui import QApplication
+except ImportError:
+ has_gui = False
+else:
+ has_gui = True
+
+def adjust_filename(filename, orig_mod_filename):
+ dirpath = os.path.dirname(os.path.abspath(orig_mod_filename))
+ return os.path.join(dirpath, filename)
+
+class NoQtGuiError(Exception):
+ def __init__(self):
+ Exception.__init__(self, 'No QtGui found')
+
+class BasicPySlotCase(object):
+ '''Base class that tests python slots and signal emissions.
+
+ Python slots are defined as any callable passed to QObject.connect().
+ '''
+ def setUp(self):
+ self.called = False
+
+ def tearDown(self):
+ try:
+ del self.args
+ except:
+ pass
+
+ def cb(self, *args):
+ '''Simple callback with arbitrary arguments.
+
+ The test function must setup the 'args' attribute with a sequence
+ containing the arguments expected to be received by this slot.
+ Currently only a single connection is supported.
+ '''
+ if tuple(self.args) == args:
+ self.called = True
+ else:
+ raise ValueError('Invalid arguments for callback')
+
+
+_instance = None
+_timed_instance = None
+
+if has_gui:
+ class UsesQApplication(unittest.TestCase):
+ '''Helper class to provide QApplication instances'''
+
+ qapplication = True
+
+ def setUp(self):
+ '''Creates the QApplication instance'''
+
+ # Simple way of making instance a singleton
+ super(UsesQApplication, self).setUp()
+ global _instance
+ if _instance is None:
+ _instance = QApplication([])
+
+ self.app = _instance
+
+ def tearDown(self):
+ '''Deletes the reference owned by self'''
+ del self.app
+ super(UsesQApplication, self).tearDown()
+
+
+ class TimedQApplication(unittest.TestCase):
+ '''Helper class with timed QApplication exec loop'''
+
+ def setUp(self, timeout=100):
+ '''Setups this Application.
+
+ timeout - timeout in milisseconds'''
+ global _timed_instance
+ if _timed_instance is None:
+ _timed_instance = QApplication([])
+
+ self.app = _timed_instance
+ QTimer.singleShot(timeout, self.app.quit)
+
+ def tearDown(self):
+ '''Delete resources'''
+ del self.app
+else:
+ class UsesQApplication(unittest.TestCase):
+ def setUp(self):
+ raise NoQtGuiError()
+ class TimedQapplication(unittest.TestCase):
+ def setUp(self):
+ raise NoQtGuiError()
+
+
+_core_instance = None
+
+class UsesQCoreApplication(unittest.TestCase):
+ '''Helper class for test cases that require an QCoreApplication
+ Just connect or call self.exit_app_cb. When called, will ask
+ self.app to exit.
+ '''
+
+ def setUp(self):
+ '''Set up resources'''
+
+ global _core_instance
+ if _core_instance is None:
+ _core_instance = QCoreApplication([])
+
+ self.app = _core_instance
+
+ def tearDown(self):
+ '''Release resources'''
+ del self.app
+
+ def exit_app_cb(self):
+ '''Quits the application'''
+ self.app.exit(0)
+
+
+def random_string(size=5):
+ '''Generate random string with the given size'''
+ return ''.join(map(chr, [randint(33, 126) for x in range(size)]))