TST: test reset_index with tuple index name and col_level!=0

[toobaz]

• tests added / passed
• passes git diff master --name-only -- '*.py' | flake8 --diff

This just completes #16165 as asked by @jorisvandenbossche

[codecov]

Codecov Report

Merging #16195 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #16195   +/-   ##
=======================================
  Coverage   90.86%   90.86%           
=======================================
  Files         162      162           
  Lines       50862    50862           
=======================================
  Hits        46215    46215           
  Misses       4647     4647

Flag	Coverage Δ
#multiple	88.64% <ø> (ø)	⬆️
#single	40.3% <ø> (ø)	⬆️

---

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Δ = absolute <relative> (impact), ø = not affected, ? = missing data
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[codecov]

Codecov Report

Merging #16195 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #16195   +/-   ##
=======================================
  Coverage   90.86%   90.86%           
=======================================
  Files         162      162           
  Lines       50862    50862           
=======================================
  Hits        46215    46215           
  Misses       4647     4647

Flag	Coverage Δ
#multiple	88.64% <ø> (ø)	⬆️
#single	40.3% <ø> (ø)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 217864e...1fb57b9. Read the comment docs.

[codecov]

Codecov Report

Merging #16195 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #16195   +/-   ##
=======================================
  Coverage   90.86%   90.86%           
=======================================
  Files         162      162           
  Lines       50862    50862           
=======================================
  Hits        46215    46215           
  Misses       4647     4647

Flag	Coverage Δ
#multiple	88.64% <ø> (ø)	⬆️
#single	40.3% <ø> (ø)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 217864e...1fb57b9. Read the comment docs.

[jreback]

thanks!