Review Test Coverage

[bricelam]

We should analyze our test coverage to identify any major uncovered areas.

[bricelam]

Areas missing automated coverage:

• Core
  • Conventions APIs (possibly just inlined)
• Relational
  • Connection resiliency
• SQL Server
  • Full text search
  • SqlServerDbFunctionsExtensions (client-side)
  • SqlServerUdtTypeMapping
• SQLite
  • Spatial
    • Custom SRIDs
    • Custom Dimensions Sqlite Spatial: Test Z and M #13767
• Design
  • MigrationsScaffolder
  • RevEng
    • Spatial
• Tools

[ajcvickers]

Duplicate of #17018