Add tests for cookbooks

[gassmoeller]

Add tests for the cookbooks, and fix some indentation in the CMakeLists for the documentation tests

[github-actions]

Benchmark	Main	Feature	Difference (99.9% CI)
Slab interpolation simple none	1.012 ± 0.004 (s=449)	1.012 ± 0.005 (s=443)	-0.1% .. +0.1%
Slab interpolation curved simple none	1.018 ± 0.005 (s=420)	1.015 ± 0.004 (s=468)	-0.4% .. -0.2%
Spherical slab interpolation simple none	1.163 ± 0.005 (s=381)	1.164 ± 0.006 (s=395)	+0.0% .. +0.2%
Slab interpolation simple curved CMS	1.054 ± 0.005 (s=408)	1.053 ± 0.004 (s=449)	-0.1% .. +0.1%
Spherical slab interpolation simple CMS	1.545 ± 0.008 (s=300)	1.546 ± 0.013 (s=285)	-0.1% .. +0.3%
Spherical fault interpolation simple none	1.179 ± 0.008 (s=367)	1.180 ± 0.007 (s=398)	-0.1% .. +0.2%
Cartesian min max surface	2.299 ± 0.018 (s=195)	2.302 ± 0.024 (s=199)	-0.2% .. +0.4%
Spherical min max surface	7.218 ± 0.032 (s=62)	7.221 ± 0.036 (s=65)	-0.2% .. +0.3%

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (684b28a) 93.11% compared to head (4b81961) 92.86%.
Report is 16 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #619      +/-   ##
==========================================
- Coverage   93.11%   92.86%   -0.26%     
==========================================
  Files          92       92              
  Lines        6334     6376      +42     
==========================================
+ Hits         5898     5921      +23     
- Misses        436      455      +19     

see 6 files with indirect coverage changes

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 684b28a...4b81961. Read the comment docs.