"[do not] contain" steps should be replaced by "equals"

[dmitrii-ubskii]

Please replace every line in curly brackets { like this } with appropriate answers, and remove this line.

Problem to Solve

All steps that reference "[do not] contain" are just a wordier way to check for exact set equality.

Then entity(customer) get owns key types contain:
  | username   |
  | reference  |
  | work-email |
Then entity(customer) get owns key types do not contain:
  | email |
Then entity(customer) get owns explicit key types contain:
  | reference  |
  | work-email |
Then entity(customer) get owns explicit key types do not contain:
  | username   |
  | email      |

Proposed Solution

The tests could be made terser and more explicit by the introduction of an "equals" or "is exactly" step instead.

Then entity(customer) get owns key types equals:
  | username   |
  | reference  |
  | work-email |
Then entity(customer) get owns explicit key types equals:
  | reference  |
  | work-email |