[python][tests] migrate test_engine.py to pytest (#3800)

* TST Migrates tset_engine.py to pytest * ENH Apply suggestions * ENH Uses temp path * ENH Fixes typos

[python][tests] migrate test_engine.py to pytest (#3800)
* TST Migrates tset_engine.py to pytest * ENH Apply suggestions * ENH Uses temp path * ENH Fixes typos
6dbe736e · Thomas J. Fan · GitHub · 9cc3777c · 6dbe736e
Unverified Commit 6dbe736e authored Jan 21, 2021 by Thomas J. Fan Committed by GitHub Jan 21, 2021
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tests/python_package_test/test_engine.py tests/python_package_test/test_engine.py +2620 -2556

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--- a/tests/python_package_test/test_engine.py
+++ b/tests/python_package_test/test_engine.py