class Shell(object):
def __init__(self):
self.subject = Subject()
def add_run_observer(self, observer):
self.subject.add_observer(observer)
def remove_run_observer(self, observer):
self.subject.remove_observer(self, observer)
def check_open(self, args, input_string=None):
self.subject.notify(' '.join(args))
return check_open(args, input_string)
class SubjectTestCase(unittest.TestCase):
def setUp(self):
self.count1 = 0
self.count2 = 0
self.count3 = 0
self.subject = Subject()
def event1(self):
self.count1 += 1
def event2(self):
self.count2 += 1
def remove_during_event(self):
self.count3 += 1
self.subject.remove_observer(self.remove_during_event)
def test_simple(self):
self.subject.add_observer(self.event1)
self.subject.notify()
self.assertEqual(1, self.count1)
self.subject.remove_observer(self.event1)
self.subject.notify()
self.assertEqual(1, self.count1)
self.subject.add_observer(self.event1)
self.subject.add_observer(self.event2)
self.subject.notify()
self.assertEqual(2, self.count1)
self.assertEqual(1, self.count2)
def test_multiple(self):
self.subject.add_observer(self.event1)
self.subject.add_observer(self.event1)
self.subject.notify()
self.assertEqual(2, self.count1)
def test_remove_during_event(self):
self.subject.add_observer(self.event1)
self.subject.add_observer(self.remove_during_event)
self.subject.add_observer(self.event2)
self.subject.notify()
self.assertEqual(1, self.count1)
self.assertEqual(1, self.count2)
self.assertEqual(1, self.count3)
self.subject.notify()
self.assertEqual(2, self.count1)
self.assertEqual(2, self.count2)
self.assertEqual(1, self.count3)
class GDBDebugger(object):
def __init__(self, gdb_stub):
self.gdb_stub = gdb_stub
self.gdb_stub.execute_sync('set breakpoint pending on')
self.exit_subject = Subject()
gdb_stub.add_event_observer(self.exit_subject.notify)
def add_symbol_file(self, symbol_file, sections):
out = StringIO()
out.write('add-symbol-file /home/pag/Code/drk/src/core/%s ' % (symbol_file))
out.write(sections['.text'])
del sections['.text']
for section in sections.iteritems():
out.write(' -s %s %s' % (section[0], section[1]))
out.write(' -readnow')
self.gdb_stub.execute_sync(out.getvalue())
def set_main_symbol_file(self, symbol_file):
self.gdb_stub.execute_sync('file %s' % symbol_file)
def add_breakpoint(self, symbol):
self.gdb_stub.execute_sync('break %s' % symbol)
def clear_symbols(self):
self.gdb_stub.execute_sync('file')
def clear_breakpoints(self):
self.gdb_stub.execute('delete')
def attach_tcp(self, host, port):
self.gdb_stub.execute_sync('target remote %s:%s' % (host, str(port)))
def detach(self):
self.clear_breakpoints()
self.clear_symbols()
self.gdb_stub.execute_sync('detach')
def add_exit_observer(self, observer):
self.exit_subject.add_observer(observer)
def remove_exit_observer(self, observer):
self.exit_subject.remove_observer(observer)
def pause(self):
self.gdb_stub.pause()
def resume(self):
self.gdb_stub.execute('continue')
