tests: Use fuzzy comparison in test-suite
tests: Use fuzzy comparison in test-suite

Using exact comparison ("a == b") when comparing expected with computed
test data fails the test-suite on many architectures (including, but not
limited to armhf and arm64).

Instead, use epsilon(for now, FLT_EPSILON and DBL_EPSILON) to compare
floating point numbers for equality.


Closes: https://github.com/libsndfile/libsndfile/issues/866

Signed-off-by: IOhannes m zmölnig <53162d2c1b2e34dbf8640fd61f72fa53dad1eb50@iem.at>

libsndfile/libsndfile,libsndfile/libsndfile,libsndfile/libsndfile,libsndfile/libsndfile,libsndfile/libsndfile