Login Migration Pre Validation Changes

[Bhavikshah123]

Added a new Pre validation dialog that performs the below validations before proceeding to migration. This reduces all the migrations failures that customers are facing today and pre validated beforehand to avoid migration failures and increase the successful migrations.

1. Validate Sys admin validation- Validates the Sys Admin permission for source and target connection
2. Validate Entra ID - Validates the Entra ID entered for windows login migration
3. Validate user mapping -
   Validates the User mapping FOR Target DB existence
   Target DB user existence
   Target DB user with same SID existence

Testing (https://microsoftapc-my.sharepoint.com/:w:/g/personal/bhavikshah_microsoft_com/ER_jJ3YqZXtCoKOfZS4EXRMBY6bvOEGbPP97ltlvS4MNew?e=fawvcw)

1. Select logins to run validation
2. Perform validation to run migration
3. Sysadmin validation: Source doesn't have permissions, but Target has permissions
4. Sysadmin validation: Source has permission, but Target doesn't have permissions
5. Sysadmin validation: Source and Target both doesn't have permissions
6. Entra id validation: Incorrect format
7. User Mapping: Database not found
8. User Mapping: Database found but user not found
9. User Mapping: Database found, user found but userid does not match
10. Happy path

[coveralls]

Pull Request Test Coverage Report for Build 10898533139

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

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Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 163 unchanged lines in 2 files lost coverage.
• Overall coverage increased (+0.003%) to 41.727%

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Files with Coverage Reduction	New Missed Lines	%
src/sql/workbench/services/query/common/queryRunner.ts	15	69.71%
src/sql/workbench/services/query/common/queryModelService.ts	148	4.81%

Totals
Change from base Build 10777409214:	0.003%
Covered Lines:	30730
Relevant Lines:	68916

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💛 - Coveralls