Enhanced error handling and design of parse_data

[asgibson]

FileNotFoundError when config file path results in 0 read files

Data influx now denoted as required and optional in comments

• required data will stop execution with error
• required data was updated with error handling
• optional data does not stop execution
• optional data retained its original behaviors:
  • booleans are optional, but become None not False when missing
  • benchmark data sets until fail then passes in a "don't care" fashion

KeyError catch for required data now extends original key error

• includes config_filepath
• includes key value that failed

Updated and added approprate unit tests

• needed return values with length for config.read call
• added error handling tests

[codecov-commenter]

Codecov Report

Merging #30 (0873b5d) into main (7552b33) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##              main       #30   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           25        25           
  Lines         1164      1169    +5     
  Branches       155       156    +1     
=========================================
+ Hits          1164      1169    +5     

Files Changed	Coverage Δ
onair/src/run_scripts/execution_engine.py	100.00% <100.00%> (ø)

[asgibson]

Tested by altering config file used by driver.py.

Missing output:
...
File ".../OnAIR/onair/src/run_scripts/execution_engine.py", line 67, in parse_configs
raise FileNotFoundError(f"Config file at '{config_filepath}' could not be read.")
FileNotFoundError: Config file at './onair/config/missing_config.ini' could not be read.

Missing required key:
...
File ".../python3.9/configparser.py", line 1257, in __getitem__
raise KeyError(key)
KeyError: 'MetaFiles'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
...
File ".../OnAIR/onair/src/run_scripts/execution_engine.py", line 82, in parse_configs
raise KeyError(new_message) from e
KeyError: "Config file: './onair/config/missing_key_config.ini', missing key: MetaFiles"

[the-other-james]

Confirmed the new error message on my machine, and unit test coverage 100%. Code looks good. Thanks!