The value based test for ray samplers give inconsistent results

[dBeker]

Describe the bug When ran in different times, the tests for ray sampling functions give errors during execution with a dummy data. Check for the possible root cause. Until then, the tests are bypassed.

To Reproduce Steps to reproduce the behavior: Run TestWeightedRaySampling and TestUniformRaySampling functions on CI / same environment.

Expected behavior Tests to pass.