def test_setting_not_processable_file_for_incoming_message():
file = StringIO("import this")
file.name = "zen.py"
builder = MessageBuilder()
builder.file = file
message = builder.message
assert message.file.file_name == "zen.py"
def test_file_transfer_event():
builder = MessageBuilder()
builder.file = File.from_string("some data", "name.txt")
builder.body = "file_transfer"
builder.system_command = True
def test_setting_new_file_from_io():
file = File.from_string("some data", "name.txt")
builder = MessageBuilder()
builder.file = file.file
assert builder.file == file