Try StringIO in test_PDB_metals

[lilyminium]

Fixes #3080

Changes made in this Pull Request:

• Try StringIO instead of actual file

PR Checklist

• Tests?
• Docs?
• CHANGELOG updated?
• Issue raised/referenced?

[pep8speaks]

Hello @lilyminium! Thanks for updating this PR. We checked the lines you've touched for PEP 8 issues, and found:

There are currently no PEP 8 issues detected in this Pull Request. Cheers! 🍻

Comment last updated at 2020-12-19 22:41:26 UTC

[codecov]

Codecov Report

Merging #3081 (7a7885f) into develop (2223363) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop    #3081   +/-   ##
========================================
  Coverage    93.17%   93.17%           
========================================
  Files          171      171           
  Lines        22729    22729           
  Branches      3216     3216           
========================================
  Hits         21177    21177           
  Misses        1504     1504           
  Partials        48       48           

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[lilyminium]

Well, this worked. 🤷‍♀️

[tylerjereddy]

CI is all green so I'm going to put it in. Strictly speaking we may not need the switch to StringIO but doesn't seem worth the turnover to revert it either.

[tylerjereddy]

thanks @lilyminium