Enhance test coverage for GraphQL queries by adding orderBy clause to…

[Arpit Gupta (ar-guptaar)]

Why make this change?

In a previously merged PR, there were comments about some gaps in testing scenarios, which is addressed as part of this change.

What is this change?

This pull request adds comprehensive regression tests for groupBy queries involving mapped (aliased) columns in both MS SQL and DWSQL environments, and ensures deterministic query results by explicitly specifying orderBy in all relevant test GraphQL queries.

Test Coverage Improvements:

• Added two new end-to-end regression tests to DwSqlGraphQLQueryTests.cs:
  • One test verifies that grouping and projecting only a mapped column works as expected, ensuring the backing column is used for grouping and the alias is used in the response.
  • Another test covers grouping, selecting, aggregating, applying HAVING filters, and ordering on a mapped column, confirming consistent use of the backing column in all SQL clauses while projecting the mapped names in the response.

How was this tested?

• Integration Tests
• Unit Tests

[Arpit Gupta (ar-guptaar)]

/azp run

[azure-pipelines]

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[Copilot]

Pull request overview

This PR strengthens GraphQL integration test reliability and coverage for groupBy scenarios involving mapped (aliased) columns by making result ordering deterministic and adding DWSQL-specific regression coverage.

Changes:

• Adds orderBy to existing MS SQL gQLmappings groupBy GraphQL test queries to ensure deterministic group ordering.
• Adds two new DWSQL end-to-end regression tests covering groupBy with mapped columns (fields-only, and fields + aggregations + HAVING + ordering).
• Normalizes formatting in several DWSQL expected SQL query strings (whitespace-only adjustments).

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/Service.Tests/SqlTests/GraphQLQueryTests/MsSqlGraphQLQueryTests.cs	Adds explicit orderBy to mapped-column groupBy GraphQL queries to make returned group order deterministic for assertions.
src/Service.Tests/SqlTests/GraphQLQueryTests/DwSqlGraphQLQueryTests.cs	Adds DWSQL regression coverage for mapped-column groupBy scenarios and applies minor SQL string formatting cleanups.