Some tests fail on FreeBSD

[yurivict]

Issue description

$ ./ensmallen_tests
ensmallen version: 2.16.1 (Severely Dented Can Of Polyurethane)
armadillo version: 10.1.1 (Orchid Ambush)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ensmallen_tests is a Catch v2.4.1 host application.
Run with -? for options

-------------------------------------------------------------------------------
CNESchafferFunctionN4Test
-------------------------------------------------------------------------------
/usr/ports/math/ensmallen/work/ensmallen-2.16.1/tests/cne_test.cpp:122
...............................................................................

/usr/ports/math/ensmallen/work/ensmallen-2.16.1/tests/cne_test.cpp:141: FAILED:
  REQUIRE( coordinates(0) == Approx(0).margin(0.1) )
with expansion:
  1.2531376349 == Approx( 0.0 )

===============================================================================
test cases:   274 |   273 passed | 1 failed
assertions: 13330 | 13329 passed | 1 failed

Your environment

• version of ensmallen: 2.16.1
• operating system: FreeBSD 12.2
• compiler: clang-10
• version of Armadillo: 10.1.1

[rcurtin]

It looks like you have run the tests from the wrong directory or something---the majority of those issues appear to be that the data files can't be loaded.

[yurivict]

Sorry, I first pasted a wrong log.

There is only one failure:

tests/cne_test.cpp:141: FAILED:
  REQUIRE( coordinates(0) == Approx(0).margin(0.1) )
with expansion:
  1.2531376349 == Approx( 0.0 )

[rcurtin]

I'm not sure but this could be related to #267.

[rcurtin]

Actually I'm pretty sure this was fixed with #267, so I'll go ahead and close this. Hopefully, next release, everything will pass for you. :)