3 Running 14 test cases...
14 test.cpp(35): error: in "test2/_2": check random_sample < 1.7 has failed [1.75560534 >= 1.7]
15 Failure occurred in a following context:
16 random_sample = 1.75560534; index = 2;
22 *** 1 failure is detected in the test module "dataset_example63"