def test_nan_floats(nonan_type: FormatField,
construct_type: FormatField) -> None:
"""Check that error is raised if you try to build or parse nan floats."""
nan = float("nan") # noqa: WPS456
with pytest.raises(FormatFieldError):
nonan_type.build(nan)
nan_serialized = construct_type.build(nan)
with pytest.raises(FormatFieldError):
nonan_type.parse(nan_serialized)
class TestFormatField(unittest.TestCase):
def setUp(self):
self.ff = FormatField("formatfield", "<", "L")
def test_trivial(self):
pass
def test_parse(self):
self.assertEqual(self.ff.parse("\x12\x34\x56\x78"), 0x78563412)
def test_build(self):
self.assertEqual(self.ff.build(0x78563412), "\x12\x34\x56\x78")
def test_parse_too_short(self):
self.assertRaises(FieldError, self.ff.parse, "\x12\x34\x56")
def test_build_too_long(self):
self.assertRaises(FieldError, self.ff.build, 9e9999)
def test_sizeof(self):
self.assertEqual(self.ff.sizeof(), 4)
class TestFormatField(unittest.TestCase):
def setUp(self):
self.ff = FormatField("formatfield", "<", "L")
def test_trivial(self):
pass
def test_parse(self):
self.assertEqual(self.ff.parse(b"\x12\x34\x56\x78"), 0x78563412)
def test_build(self):
self.assertEqual(self.ff.build(0x78563412), b"\x12\x34\x56\x78")
def test_parse_too_short(self):
self.assertRaises(FieldError, self.ff.parse, b"\x12\x34\x56")
def test_build_too_long(self):
self.assertRaises(FieldError, self.ff.build, 9e9999)
def test_sizeof(self):
self.assertEqual(self.ff.sizeof(), 4)