Combined writing and temp file creation in a single step

[sarthakpati]

This change will combine the creation of a temporary file and writing of the parameters in a single step, thereby reducing the total number of lines in the testing file.

Fixes #N.A.

Proposed Changes

• reducing number of lines for code coverage

Checklist

• I have read the CONTRIBUTING guide.
• My PR is based from the current GaNDLF master .
• Non-breaking change (does not break existing functionality): provide as many details as possible for any breaking change.
• Function/class source code documentation added/updated.
• Code has been blacked for style consistency.
• If applicable, version information has been updated in GANDLF/version.py.
• If adding a git submodule, add to list of exceptions for black styling in pyproject.toml file.
• Usage documentation has been updated, if appropriate.
• Tests added or modified to cover the changes; if coverage is reduced, please give explanation.
• If customized dependency installation is required (i.e., a separate pip install step is needed for PR to be functional), please ensure it is reflected in all the files that control the CI, namely: python-test.yml, and all docker files [1,2,3].

[github-actions]

MLCommons CLA bot All contributors have signed the MLCommons CLA ✍️ ✅

[codecov]

Codecov Report

Merging #720 (3911c26) into master (60c9d28) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #720      +/-   ##
==========================================
- Coverage   94.71%   94.70%   -0.01%     
==========================================
  Files         117      117              
  Lines        8251     8219      -32     
==========================================
- Hits         7815     7784      -31     
+ Misses        436      435       -1     

Flag	Coverage Δ
unittests	94.70% <100.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
testing/test_full.py	99.15% <100.00%> (-0.02%)	⬇️

... and 1 file with indirect coverage changes

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more