Add test for empty host #821

[kenballus]

Adds a test to ensure that empty hosts are handled in the correct way, as requested in #821.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (5659e3c) 99.74% compared to head (fa4091f) 99.74%.
Report is 1 commits behind head on master.

❗ Current head fa4091f differs from pull request most recent head a1ffbdf. Consider uploading reports for the commit a1ffbdf to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #822   +/-   ##
=======================================
  Coverage   99.74%   99.74%           
=======================================
  Files           4        4           
  Lines         772      772           
=======================================
  Hits          770      770           
  Misses          2        2           

Flag	Coverage Δ
unit	99.74% <ø> (ø)

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