IPA-110: Pagination (itemsPerPage and pageNum query params)

[yelizhenden-mdb]

Proposed changes

Jira ticket: CLOUDP-304949
CLOUDP-304950
CLOUDP-304951
CLOUDP-304952
CLOUDP-304953

Implements xgen-IPA-110-collections-request-has-pageNum-query-param and xgen-IPA-110-collections-request-has-itemsPerPage-query-param rules

#### xgen-IPA-110-collections-request-has-itemsPerPage-query-param

The request should support an integer itemsPerPage query parameter allowing users to specify the maximum number of results to return per page.
itemsPerPage must not be required
itemsPerPage default value should be 100.

##### Implementation details
Rule checks for the following conditions:
  - Only applies to List methods (GET on resource collection paths)
  - Verifies the operation includes itemsPerPage query parameter
  - Verifies the itemsPerPage query parameter is not required
  - Verifies the itemsPerPage query parameter has a default value of 100

#### xgen-IPA-110-collections-request-has-pageNum-query-param

The request should support an integer pageNum query parameter allowing users to specify the maximum number of results to return per page.
pageNum must not be required
pageNum default value should be 1.

##### Implementation details
Rule checks for the following conditions:
  - Only applies to List methods (GET on resource collection paths)
  - Verifies the operation includes pageNum query parameter
  - Verifies the pageNum query parameter is not required
  - Verifies the pageNum query parameter has a default value of 1

Found 13 violations for both of them. The same ones violate the validations for the Paginated prefix and results array.

Checklist

• I have signed the MongoDB CLA
• I have added tests that prove my fix is effective or that my feature works

Changes to Spectral

• I have read the README file for Spectral Updates

Further comments