def test_bytes_to_pretty_hexinvalid_data():
"""Test there is an error thrown if the input data is invalid."""
try:
cmds._bytes_to_pretty_hex(data=[1, 2, 3, 4, "500"])
except Exception:
# The exception that bubbles up from IntelHex is implementation detail
# from that library, so it could be anything
assert True, "Exception raised"
else:
raise AssertionError("Exception NOT raised")
def test_bytes_to_pretty_hex_io_error(mock_string_io, mock_stderr):
"""Test the exception handling when an IOError is encountered."""
data = [1, 2, 3, 4, 5]
mock_string_io.return_value.write.side_effect = IOError()
result = cmds._bytes_to_pretty_hex(data=data)
assert result is None
assert mock_stderr.call_count == 1
def test_bytes_to_pretty_hex():
"""Test the data to Intel Hex string conversion."""
data = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]
expected = ("0000 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 "
"|................|\n")
result = cmds._bytes_to_pretty_hex(data=data)
assert expected == result
def test_bytes_to_pretty_hex_offset():
"""Test the data to Intel Hex string conversion with an offset."""
data = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]
offset = 0x2000001
expected = ("2000000 -- 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F "
"| ...............|\n"
"2000010 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- "
"|. |\n")
result = cmds._bytes_to_pretty_hex(data=data, offset=offset)
assert expected == result