[CT-3495] I want to use spacing to make my csv input/expected output mock data more readable for unit tests

[graciegoheen]

Is this a new bug in dbt-core?

• [X] I believe this is a new bug in dbt-core
• [X] I have searched the existing issues, and I could not find an existing issue for this bug

Current Behavior

If I want to use format:csv for defining my mock data for a unit test definition, I cannot use any spaces:

unit_tests:
  - name: b
    model: dim_wizards 
    given: 
      - input: ref('stg_wizards')
        format: csv
        rows: |
          wizard_id,email,email_top_level_domain
          1,cool@example.com,example.com
          2,cool@unknown.com,unknown.com
          3,badgmail.com,gmail.com
          4,missingdot@gmailcom,gmail.com
...

This is even true if I want to use a fixture file:

unit_tests:
  - name: c
    model: dim_wizards 
    given: 
      - input: ref('stg_wizards')
        format: csv
        fixture: wizard_emails_input
...

# tests/fixtures/wizard_emails_input

wizard_id,email,email_top_level_domain
1,cool@example.com,example.com
2,cool@unknown.com,unknown.com
3,badgmail.com,gmail.com
4,missingdot@gmailcom,gmail.com

This makes the text harder to read / write.

Expected Behavior

I should be able to use spaces when defining my mock data for a unit test using format: csv:

unit_tests:
  - name: b
    model: dim_wizards 
    given: 
      - input: ref('stg_wizards')
        format: csv
        rows: |
          wizard_id, email, email_top_level_domain
          1, cool@example.com, example.com
          2, cool@unknown.com, unknown.com
          3, badgmail.com, gmail.com
          4, missingdot@gmailcom, gmail.com
...

Spaces should also be allowed in fixture files:

unit_tests:
  - name: c
    model: dim_wizards 
    given: 
      - input: ref('stg_wizards')
        format: csv
        fixture: wizard_emails_input
...

# tests/fixtures/wizard_emails_input

wizard_id, email, email_top_level_domain
1, cool@example.com, example.com
2, cool@unknown.com, unknown.com
3, badgmail.com, gmail.com
4, missingdot@gmailcom, gmail.com

[graciegoheen]

Notes from refinement:

• is this actually supported for csvs / seeds

[graciegoheen]

Here's what happens with seeds:

1. created a new seed in my project with spaces

   column_a, column_b
   1, grace
   2, doug

2. executed dbt seed

The created table in the warehouse -> my_seed

So the fields for column_b included the spaces: grace & doug. This does seem to be consistent with what's happening for unit tests - see example here.