TVB-2719 Add googletest set-up

[ayan-b]

Closes #57

[codecov]

Codecov Report

Merging #64 into trunk will decrease coverage by 24.68%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             trunk      #64       +/-   ##
============================================
- Coverage   100.00%   75.31%   -24.69%     
============================================
  Files            1        9        +8     
  Lines           72     1203     +1131     
============================================
+ Hits            72      906      +834     
- Misses           0      297      +297     

Flag	Coverage Δ
#cpp	73.74% <ø> (?)
#python	100.00% <ø> (?)

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Impacted Files	Coverage Δ
geodesic_library/geodesic_algorithm_base.h	68.57% <0.00%> (ø)
geodesic_library/geodesic_mesh.h	88.96% <0.00%> (ø)
...odesic_library/geodesic_algorithm_exact_elements.h	56.77% <0.00%> (ø)
geodesic_library/geodesic_algorithm_exact.h	72.06% <0.00%> (ø)
geodesic_library/geodesic_mesh_elements.h	72.72% <0.00%> (ø)
..._library/geodesic_constants_and_simple_functions.h	100.00% <0.00%> (ø)
geodesic_library/geodesic_memory.h	88.23% <0.00%> (ø)
geodesic_library/geodesic_utils.h	93.75% <0.00%> (ø)

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[liadomide]

The coverage report looks muuch better here! Great job!

Few questions (maybe potential to improve):

• would it be difficult to make this a stand-alone PR, so not top of TVB-2719 Use OpenMP Parallel #49 ?
• Could cpp.ci.sh be moved under https://github.com/the-virtual-brain/tvb-gdist/tree/trunk/packaging ? Maybe rename that entire folder build ?
• exclude tests/test_geodesic_utils.cpp from the report ?

[ayan-b]

would it be difficult to make this a stand-alone PR, so not top of #49 ?

Done.

Could cpp.ci.sh be moved under https://github.com/the-virtual-brain/tvb-gdist/tree/trunk/packaging ? Maybe rename that entire folder build ?

Thinking about this, as the script itself creates a build directory where tests are performed. We can also rename the packaging folder to something else.

exclude tests/test_geodesic_utils.cpp from the report ?

Done.