def test_leftShift(self):
"""
To check left shift implementation
"""
ias_shift = IAS()
ias_shift.appendInput('000000000010', 32)
ias_shift.decode('00000001', '000000000010')
ias_shift.decode('00010100', '000000000010')
self.assertEqual(ias_shift.getAccumulator(), 64)
def test_halt(self):
"""
Test to check halt functionality
"""
ias_halt = IAS()
ias_halt.data_memory = haltroutine
ias_halt.fetch()
self.assertEqual(ias_halt.getAccumulator(), 0)
self.assertEqual(ias_halt.getProgramCounter(), 0)