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 send_msg_sequence

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example_data.py

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#!/usr/bin/env python

# coding: utf-8

"""

This module contains some example data, like messages of different

types and example comments with different challenges.

"""

import random

from operator import attrgetter

from can import Message

# make tests more reproducible

random.seed(13339115)

def sort_messages(messages):

"""

Sorts the given messages by timestamps (ascending).

:param Iterable[can.Message] messages: a sequence of messages to sort

:rtype: list

"""

return list(sorted(messages, key=attrgetter("timestamp")))

# some random number

TEST_TIME = 1483389946.197

# List of messages of different types that can be used in tests

TEST_MESSAGES_BASE = sort_messages(

[

Message(

# empty

),

Message(

# only data

data=[0x00, 0x42]

),

Message(

# no data

arbitration_id=0xAB,

is_extended_id=False,

),

Message(

# no data

arbitration_id=0x42,

is_extended_id=True,

),

Message(

# no data

arbitration_id=0xABCDEF

),

Message(

# empty data

data=[]

),

Message(

# empty data

data=[0xFF, 0xFE, 0xFD]

),

Message(

# with channel as integer

channel=0

),

Message(

# with channel as integer

channel=42

),

Message(

# with channel as string

channel="vcan0"

),

Message(

# with channel as string

channel="awesome_channel"

),

Message(

arbitration_id=0xABCDEF,

is_extended_id=True,

timestamp=TEST_TIME,

data=[1, 2, 3, 4, 5, 6, 7, 8],

),

Message(

arbitration_id=0x123,

is_extended_id=False,

timestamp=TEST_TIME + 42.42,

data=[0xFF, 0xFF],

),

Message(

arbitration_id=0xDADADA,

is_extended_id=True,

timestamp=TEST_TIME + 0.165,

data=[1, 2, 3, 4, 5, 6, 7, 8],

),

Message(

arbitration_id=0x123,

is_extended_id=False,

timestamp=TEST_TIME + 0.365,

data=[254, 255],

),

Message(

arbitration_id=0x768, is_extended_id=False, timestamp=TEST_TIME + 3.165

),

]

)

TEST_MESSAGES_REMOTE_FRAMES = sort_messages(

[

Message(

arbitration_id=0xDADADA,

is_extended_id=True,

is_remote_frame=True,

timestamp=TEST_TIME + 0.165,

),

Message(

arbitration_id=0x123,

is_extended_id=False,

is_remote_frame=True,

timestamp=TEST_TIME + 0.365,

),

Message(

arbitration_id=0x768,

is_extended_id=False,

is_remote_frame=True,

timestamp=TEST_TIME + 3.165,

),

Message(

arbitration_id=0xABCDEF,

is_extended_id=True,

is_remote_frame=True,

timestamp=TEST_TIME + 7858.67,

),

]

)

TEST_MESSAGES_ERROR_FRAMES = sort_messages(

[

Message(is_error_frame=True),

Message(is_error_frame=True, timestamp=TEST_TIME + 0.170),

Message(is_error_frame=True, timestamp=TEST_TIME + 17.157),

]

)

TEST_ALL_MESSAGES = sort_messages(

TEST_MESSAGES_BASE + TEST_MESSAGES_REMOTE_FRAMES + TEST_MESSAGES_ERROR_FRAMES

)

TEST_COMMENTS = [

"This is the first comment",

"", # empty comment

"This third comment contains some strange characters: 'ä\"§$%&/()=?__::_Öüßêè and ends here.",

(

"This fourth comment is quite long! "

"Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. "

"Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi. Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. "

"Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi."

),

]

def generate_message(arbitration_id):

"""

Generates a new message with the given ID, some random data

and a non-extended ID.

"""

data = bytearray([random.randrange(0, 2 ** 8 - 1) for _ in range(8)])

return Message(

arbitration_id=arbitration_id,

data=data,

is_extended_id=False,

timestamp=TEST_TIME,

)