Add unit test for test_wrap_socket_sni

[aojea]

Reference #249

[codecov]

Codecov Report

Merging #250 into master will increase coverage by 0.34%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #250      +/-   ##
==========================================
+ Coverage   94.72%   95.06%   +0.34%     
==========================================
  Files          14       14              
  Lines        1744     1744              
  Branches      255      255              
==========================================
+ Hits         1652     1658       +6     
+ Misses         67       59       -8     
- Partials       25       27       +2

Impacted Files	Coverage Δ
amqp/transport.py	82.85% <0%> (+2.14%)	⬆️

---

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 60acabc...c3b72e1. Read the comment docs.

[codecov]

Codecov Report

Merging #250 into master will increase coverage by 0.34%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #250      +/-   ##
==========================================
+ Coverage   94.72%   95.06%   +0.34%     
==========================================
  Files          14       14              
  Lines        1744     1744              
  Branches      255      255              
==========================================
+ Hits         1652     1658       +6     
+ Misses         67       59       -8     
- Partials       25       27       +2

Impacted Files	Coverage Δ
amqp/transport.py	82.85% <0%> (+2.14%)	⬆️

---

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 60acabc...c3b72e1. Read the comment docs.

[matusvalo]

Thank you @aojea