def test_MsgContext():
from genmsg.msg_loader import MsgContext, load_msg_from_file
msg_context = MsgContext()
assert not msg_context.is_registered('time')
assert not msg_context.is_registered('duration')
msg_context = MsgContext.create_default()
# tripwires
repr(msg_context)
str(msg_context)
assert msg_context.is_registered('time'), msg_context._registered_packages
assert msg_context.is_registered('duration')
assert not msg_context.is_registered('test_ros/TestString')
assert not msg_context.is_registered('Header')
# start loading stuff into context
test_d = get_test_dir()
test_ros_dir = os.path.join(test_d, 'test_ros', 'msg')
test_string_path = os.path.join(test_ros_dir, 'TestString.msg')
spec = load_msg_from_file(msg_context, test_string_path,
'test_ros/TestString')
msg_context.register('test_ros/TestString', spec)
assert msg_context.get_registered('test_ros/TestString') == spec
try:
msg_context.get_registered('bad/TestString')
assert False, 'should have raised'
except KeyError:
pass
assert msg_context.is_registered('test_ros/TestString')
# test Header
assert not msg_context.is_registered('Header')
assert not msg_context.is_registered('std_msgs/Header')
msg_context.register('std_msgs/Header', spec)
assert msg_context.is_registered('std_msgs/Header')
print('Unable to import ROS1 tools. Please source a ROS1 installation first.', end='', file=sys.stderr)
sys.exit(1)
import argparse
import copy
import em
import os
import sys
if sys.version_info[0] > 2:
from io import StringIO as BufferIO
else:
from io import BytesIO as BufferIO
g_msg_context = MsgContext()
def get_type_components(full_type):
if full_type == 'Header':
return ('std_msgs', 'Header')
components = full_type.split('/')
if len(components) != 2:
raise ValueError('Unexpected value for message type string: {}'.format(full_type))
package = components[0]
end = components[1].find('[')
if end == -1:
type = components[1]
else: