test: sqlite db engine spec

[kstrz]

SUMMARY

Increase coverage for sqlite db engine spec

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TEST PLAN

ADDITIONAL INFORMATION

• Has associated issue:
• Changes UI
• Requires DB Migration.
• Confirm DB Migration upgrade and downgrade tested.
• Introduces new feature or API
• Removes existing feature or API

[kstrz]

Hey! Could you look at it? @willbarrett @dpgaspar

[codecov-io]

Codecov Report

Merging #12616 (124685c) into master (a422c76) will decrease coverage by 3.37%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #12616      +/-   ##
==========================================
- Coverage   66.79%   63.42%   -3.38%     
==========================================
  Files        1015      486     -529     
  Lines       49676    29984   -19692     
  Branches     4847        0    -4847     
==========================================
- Hits        33183    19017   -14166     
+ Misses      16371    10967    -5404     
+ Partials      122        0     -122     

Flag	Coverage Δ
cypress	?
javascript	?
python	63.42% <ø> (-0.58%)	⬇️

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

Impacted Files	Coverage Δ
superset/db_engines/hive.py	0.00% <0.00%> (-85.72%)	⬇️
superset/db_engine_specs/hive.py	54.61% <0.00%> (-29.24%)	⬇️
superset/db_engine_specs/presto.py	70.56% <0.00%> (-11.48%)	⬇️
superset/utils/celery.py	96.42% <0.00%> (-3.58%)	⬇️
superset/db_engine_specs/mysql.py	89.79% <0.00%> (-2.05%)	⬇️
superset/views/database/mixins.py	80.70% <0.00%> (-1.76%)	⬇️
superset/result_set.py	96.69% <0.00%> (-1.66%)	⬇️
superset/models/core.py	87.22% <0.00%> (-1.64%)	⬇️
superset/db_engine_specs/base.py	85.20% <0.00%> (-0.77%)	⬇️
superset/views/core.py	74.85% <0.00%> (-0.45%)	⬇️
... and 531 more

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