refs #16 add more tests

[manparvesh]

Signed-off-by: Man Parvesh Singh Randhawa [email protected]

Changes proposed in this pull request:

adds more tests

Fixes: #16

[codecov-io]

Codecov Report

Merging #67 into master will increase coverage by 13.1%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master      #67      +/-   ##
==========================================
+ Coverage   43.01%   56.12%   +13.1%     
==========================================
  Files          22       28       +6     
  Lines        1232     1315      +83     
==========================================
+ Hits          530      738     +208     
+ Misses        702      577     -125

Impacted Files	Coverage Δ
tests/learn/test_flashcards.py	100% <100%> (ø)
tests/learn/test_define.py	100% <100%> (ø)
tests/learn/test_vocabulary.py	100% <100%> (ø)
tests/test_feedback.py	100% <100%> (ø)
tests/test_money.py	100% <100%> (ø)
tests/test_love.py	100% <100%> (ø)
... and 7 more

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