Fix Chunking

[avik-pal]

• Add tests
• Add downstream testing

[codecov]

Codecov Report

Attention: 2 lines in your changes are missing coverage. Please review.

Comparison is base (b4b816b) 87.35% compared to head (e4581ec) 87.34%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #268      +/-   ##
==========================================
- Coverage   87.35%   87.34%   -0.01%     
==========================================
  Files          21       21              
  Lines        1234     1241       +7     
==========================================
+ Hits         1078     1084       +6     
- Misses        156      157       +1     

Files	Coverage Δ
src/highlevel/coloring.jl	100.00% <100.00%> (ø)
src/highlevel/finite_diff.jl	100.00% <100.00%> (ø)
src/highlevel/forward_mode.jl	100.00% <100.00%> (ø)
src/highlevel/reverse_mode.jl	100.00% <ø> (ø)
src/highlevel/common.jl	81.81% <83.33%> (+0.46%)	⬆️

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

[ChrisRackauckas]

[OOP] [Immutable AD]: Error During Test at /home/runner/work/SparseDiffTools.jl/SparseDiffTools.jl/downstream/test/basictests.jl:482
 Unexpected Pass
 Expression: abs.(ForwardDiff.derivative((p->begin
                    (benchmark_nlsolve_oop(quadratic_f, #= /home/runner/work/SparseDiffTools.jl/SparseDiffTools.jl/downstream/test/basictests.jl:483 =# @SVector([1.0, 1.0]), p)).u[end]
                end), p)) ≈ 1 / (2 * sqrt(p))
 Got correct result, please change to @test if no longer broken.

That sounds good.