Integration tests

[curtisalexander]

Build up integration tests

• https://doc.rust-lang.org/book/ch11-03-test-organization.html
• https://doc.rust-lang.org/rust-by-example/testing/integration_testing.html

[curtisalexander]

Partially completed via 6918052cc105a591341155e5328933609de5713c

[curtisalexander]

Need tests for the following datasets:

• [ ] ahs2019n
  • [ ] metadata
  • [ ] data
• [ ] all_types
  • [ ] metadata
  • [x] data
• [ ] cars
  • [x] metadata
  • [ ] data
• [ ] hasmissing
  • [ ] metadata
  • [x] data
• [ ] intel
  • [ ] metadata
  • [ ] data
• [ ] messydata
  • [ ] metadata
  • [ ] data
• [ ] rand_ds
  • [ ] metadata
  • [ ] data
• [ ] rand_ds_largepage_err
  • [x] metadata
  • [ ] data
• [ ] rand_ds_largepage_ok
  • [x] metadata
  • [ ] data
• [ ] scientific_notation
  • [ ] metadata
  • [x] data
• [ ] somedata
  • [ ] metadata
  • [ ] data
• [ ] somemiss
  • [ ] metadata
  • [ ] data

[curtisalexander]

Utilize declarative macros to simplify tests (same pattern over and over).