fix approximately equal precision issue in test code

[meteor-lsw]

Pull Request Template

Checklist

• Confirm that run-checks script has been executed.

Related Issues/PRs

#941

Changes

• new method assert_approx_eq_diff is used to specify tolerance when approximating equality.

Testing

test in should_diff_cos and should_diff_sin

[meteor-lsw]

@nathanielsimard ready for review

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (cb4c23b) 87.34% compared to head (8cef261) 87.34%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #954   +/-   ##
=======================================
  Coverage   87.34%   87.34%           
=======================================
  Files         493      493           
  Lines       50127    50132    +5     
=======================================
+ Hits        43783    43788    +5     
  Misses       6344     6344           

Files	Coverage Δ
burn-autodiff/src/tests/cos.rs	100.00% <100.00%> (ø)
burn-autodiff/src/tests/sin.rs	100.00% <100.00%> (ø)
burn-fusion/src/handle.rs	88.81% <100.00%> (ø)
burn-tensor/src/tensor/data.rs	87.74% <100.00%> (+0.19%)	⬆️

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[louisfd]

Thanks, it's well done :)