def test_mismatch(self):
"""Test when first and second pair of values dont agree"""
rep = Representation(0, 31, 24, 0, True)
register_value = 0b11111111111111111111111111111111 # signed value 4294967295
value = rep.from_register_value(register_value)
self.assertEqual(value, -1)
def test_like_mask(self):
register_value = 0b1101111111
rep = Representation(0, 7) # an 8 bit int
value = rep.from_register_value(register_value)
self.assertEqual(value, 127)
def test_like_bv(self):
"""Test that Representation covers case of _BV, ie picking out bit flags"""
rep = Representation(3) #
self.assertTrue(rep.from_register_value(0b01000))
self.assertFalse(rep.from_register_value(0b00100))
def test_float_from_register_value(self):
register_value = 11268 # already fixed-point encoded
rep = Representation(0, 31, 24, 8)
value = rep.from_register_value(register_value)
# Note: fixed to floating point conversion is inexact
self.assertEqual(value, 44.015625)