<test> tag
The <test> tag is syntactically similar to the <node> tag. They both specify a ROS node to run, but the <test> tag indicates that the node is actually a test node to run. For more information about these test nodes, please see the rostest documentation.
Examples
<test test-name="test_1_2" pkg="mypkg" type="test_1_2.py" time-limit="10.0" args="--test1 --test2" />
Launches the "test_1_2" node using the test_1_2.py executable from the mypkg package with the command-line argument --test1 --test2. The test will be terminated as a failure if it takes longer than 10 seconds.
Attributes
<test> tags share most of the normal <node> attributes, except:
- no respawn attribute (test nodes must terminate, so they are not respawnable) 
- no output attribute as tests use their own output logging mechanism 
- The machine attribute is ignored 
It also adds several attributes, which are documented below.
Required attributes
| pkg="mypackage" | Required | Package of node. | 
| test-name="test_name" | Required | Name of test for recording in test results. | 
| type="nodetype" | Required | Node type. There must be a corresponding executable with the same name. | 
Optional attributes
| name="nodename" | (optional) | Node name. NOTE: name cannot contain a namespace. Use the ns attribute instead. If this attribute is not specified, value of test-name is used as node name | 
| args="arg1 arg2 arg3" | (optional) | Pass arguments to node. | 
| clear_params="true|false" | (optional) | Delete all parameters in the node's private namespace before launch. | 
| cwd="ROS_HOME|node" | (optional) | If 'node', the working directory of the node will be set to the same directory as the node's executable. In C Turtle, the default is 'ROS_HOME'. In boxturtle (ROS 1.0.x), the default is 'ros-root'. The use of 'ros-root' is deprecated in cturtle. | 
| launch-prefix="prefix arguments" | (optional) | Command/arguments to prepend to node's launch arguments. This is a powerful feature that enables you to enable gdb, valgrind, xterm, nice, or other handy tools. See Roslaunch Nodes in Valgrind or GDB for examples. | 
| ns="foo" | (optional) | Start the node in the 'foo' namespace. | 
| retry="0" | (optional) | Number of times to retry the test before it is considered a failure. Default is 0. This option is useful for stochastic processes that are sometimes expected to fail. | 
| time-limit="60.0" | (optional) | Number of seconds before the test is considered a failure. Default is 60 seconds. The time limit is reset after every retry. | 
Elements
You can use the following XML tags inside of a <test> tag||||
