TEST: unit tests for parse_json helper functions

[fletchapin]

• I have reviewed the test coverage on Codecov

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Describe the Missing Coverage

There are no unit tests for the following helper functions in test_parse_json.py:

• create_node()
• create_connection()
• parse_tag()
• parse_contents()
• get_tag_contents()
• parse_flow_or_gen_capacity()

Expected Behavior

The current behavior is as expected, but there is a possibility of regressions if test coverage is not improved.

Recommended Fix

Write unit tests for the helper functions listed above.