Increased coverage

[czgdp1807]

References to other Issues or PRs or Relevant literature

[1] #19

Brief description of what is fixed or changed

PyDataStructs has now increased coverage.

Other comments

[codecov]

Codecov Report

Merging #20 into master will increase coverage by 1.969%.
The diff coverage is 100%.

@@              Coverage Diff              @@
##            master       #20       +/-   ##
=============================================
+ Coverage   96.125%   98.095%   +1.969%     
=============================================
  Files           15        15               
  Lines          413       420        +7     
=============================================
+ Hits           397       412       +15     
+ Misses          16         8        -8

Impacted Files	Coverage Δ
...tructs/linear_data_structures/tests/test_arrays.py	100% <100%> (ø)	⬆️
...tructs/trees/tests/test_space_partitioning_tree.py	100% <100%> (ø)	⬆️
...datastructs/miscellaneous_data_structures/stack.py	95.454% <100%> (+6.818%)	⬆️
pydatastructs/trees/tests/test_binary_trees.py	100% <100%> (ø)	⬆️
.../miscellaneous_data_structures/tests/test_stack.py	100% <100%> (ø)	⬆️
pydatastructs/trees/space_partitioning_trees.py	97.619% <0%> (+0.793%)	⬆️
pydatastructs/linear_data_structures/arrays.py	100% <0%> (+2.439%)	⬆️
pydatastructs/trees/binary_trees.py	96.703% <0%> (+3.296%)	⬆️