test

LOCI Python Filter Wheel Test Programs

This directory contains a series of python test programs, that can invoke the Filter Wheel Flask API. These basically mimic the Java test programs.

Installation

They can be installed on a user's system, inside a Python virtual environment, as follows:

• Install python virtual environment: sudo apt-get install python3-venv
• Setup the virtual environment: python3 -m venv .venv
• Activate the virtual environment (for bash shell): source .venv/bin/activate
• Activate the virtual environment (for tcsh shell): source .venv/bin/activate.csh
• Install the depenencies for the command line program in the python virtual environment:
  • pip install Flask
  • pip install requests

Useage

To invoke the Filter Wheel Flask API end-point, you need to know it's IP address. On the ARI LAN this is 150.204.240.135. The Filter Wheel Flask API end-point currently sits on port 5101.

All the command-line test routines have a '--help' option with details on the options available.

• set hostname = "150.204.240.135"

• test_get_filter_position.py --ip_address ${hostname} --port_number 5101 Get the current position of the filter wheel.

• test_get_status.py --ip_address ${hostname} --port_number 5101 Get the current (connection) status of the filter wheel.

• test_set_filter_position_by_name.py --ip_address ${hostname} --port_number 5101 --filter_name SDSS-R Set the current position of the filter wheel by moving the specified filter into the beam.

• test_set_filter_position.py --ip_address ${hostname} --port_number 5101 --filter_position 0 Set the current position of the filter wheel by moving the specified filter position into the beam (1..5).