Allow testing of test names, rather than just test type

[ciejer]

This project is awesome!
I'm looking for something that can validate that specific fields have specific tests (every model in a folder must have a not_null test on their load_date_time column).

A proposed implementation might be a prefix:
+required_tests: {"testname!not_null.*load_date_time": 1}
This would require returning an object array rather than string array from tests_per_model ([{name: not_null_tablename_load_date_time, type: not_null}, ...], and adding a case statement to get_regex_match_count to split off and truncate the testname! - but would allow far more flexibility in future.

I'm happy to contribute with my mediocre python skills if you like the implementation.

[tnightengale]

@ciejer Sorry for the long delay, life has been busy!

Yes I really like this idea! I think we'll need to implement another category of meta assertion though: +required_columns, to first check if the column is present, and then I'm thinking take some intersection of those requirements to assert that a column is present AND has the specified tests.

I can look into this in early Feb and get back to you with my thought on implementation, unless you've already forked and got something working :) In which case, I am happy to accept contributions!

[ciejer]

Thanks for the reply @tnightengale! - I've been swamped myself, so no worries about the delay.
I'll be moving on from my current team shortly, but will be leaving a note on our ticket to check here when they get to revisiting our test coverage.

Thanks again -Chris

[codigo-ergo-sum]

Just looking over the issues list here... One possibility for this might be to piggyback on dbt-expectations? There are some tests already like this: https://github.com/calogica/dbt-expectations#expect_column_to_exist and https://github.com/calogica/dbt-expectations#expect_table_columns_to_contain_set