* Fix to make sql exceptions surface properly to user (with important notes!)
* Adding support for detecting column size issues when updating a cell
* Adding unit tests for the exception on read scenario
* change simple execute to open a new connection and close it every query
* updated tests for simple execute
* removed an unnecessary connect
* refactored code to be more readable
* global try catch on simple execute
* added multiple execution test
* update execution to be asynchrous; update tests to account for asynchrounous nature
* inital request
* refactored query execution failure callback to take exception
* added failure callback to execute and return
* added test for query execute and return
* updated params
* removed dead code
* addressed feedback; added multiple active result set support; updated tests
* addessed feedback and added testing and errors and verification
* change <= to ==
* changed name of trashQ to removedQuery
This change ensures that when calling `requestContext.SendError` you are only able to supply parameters that match the language service beta protocol expected Error object. In other words, you have to provide an error message and optionally and error code.
# **BREAKING API CHANGES**
This will break displaying errors in Microsoft/vscode-mssql. I will be making changes to properly handle the error object shortly.
* Adding contract for returning Error objects as per LanguageService "protocol"
* Fixes throughout codebase to send only error message in error cases
Cleanup of CredentialServiceTest unit test class
Adding standard error handling for event flow validator
* Adding optional data field as per protocol spec
https://github.com/Microsoft/language-server-protocol/blob/master/protocol.md
* Adding optional validation for error objects
The goal of this make sure that test code is correctly organized to ensure that test suites aren't dependent on each other.
* UnitTests get their own project now (renaming Microsoft.SqlTools.ServiceLayer.Test to Microsoft.SqlTools.ServiceLayer.UnitTests) which is about 90% of the changes to the files.
* IntegrationTests no longer depends on UnitTests, only Test.Common
* Any shared components from TestObjects that spins up a "live" connection has been moved to IntegrationTests Utility/LiveConnectionHelper.cs
* The dictionary-based mock file stream factory has been moved to Test.Common since it is used by UnitTests and IntegrationTests
* Added a overload that doesn't take a dictionary for when we don't care about monitoring the storage (about 90% of the time)
* The RunIf* wrapper methods have been moved to Test.Common
* OwnerUri and StandardQuery constants have been moved to Test.Common Constants file
* Updating to latest SDK version available at https://www.microsoft.com/net/core#windowscmd
* Moving unit tests to unit test folder
* Changing namespaces to UnitTests
* Moving some constants and shared functionality into common project, making the UnitTests reference it
* Unit tests are working!
* Integration tests are working
* Updating automated test runs
* Fixing one last broken unit test
* Exposing internals for other projects
* Moving edit data tests to UnitTest project
* Applying refactor fixes to unit tests
* Fixing flaky test that wasn't awaiting completion
