Analyse and log project(s) analysis failure

[dupdob]

Main feature: provide hints and details when project analysis fails. This is a first version that could improve via heuristics gain via user feedbacks. Current version provides hint when there is no test project detected.
This PR provides the following changes:

• provide per project status when project analysis changed, suggestion to use the --diag option to have details
• add a --diag command line option which supersedes --dev-mode . Behavior is the same. Option's help string has been updated to reflect actual behaviour
• add nunit to known test framework names to handle the recent case change in the project

Fixes
Note: most of the work for this PR has been done via Rider on macOS, but tests were conduced both on macOS and Windows.

[Copilot]

Pull Request Overview

This PR introduces diagnostic capabilities to help users troubleshoot project analysis failures. The main addition is a --diag command line option that supersedes --dev-mode, along with improved logging and failure hints when project analysis encounters issues.

Key Changes:

• Adds --diag command line option with enhanced diagnostics and detailed logging
• Provides per-project analysis status reporting with actionable suggestions
• Adds "nunit" to known test framework names to handle recent case sensitivity changes

Reviewed Changes

Copilot reviewed 20 out of 20 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
DiagModeInput.cs	New input class for the diagnostic mode option
DevModeInput.cs	Removed - functionality replaced by DiagModeInput
StrykerOptions.cs	Renamed DevMode property to DiagMode
StrykerInputs.cs	Added DiagModeInput property while maintaining DevModeInput for backward compatibility
IStrykerOptions.cs	Updated interface to use DiagMode instead of DevMode
InputFileResolver.cs	Enhanced logging for project analysis failures with diagnostic hints
InitialBuildProcess.cs	Added platform check for .NET Framework projects
IAnalyzerResultExtensions.cs	Added "nunit" to known test packages array
VsTestContextInformation.cs	Updated to use DiagMode property
CsharpMutationProcess.cs	Updated to use DiagMode property
CsharpCompilingProcess.cs	Updated to use DiagMode property
CommandLineConfigReader.cs	Added CLI registration for --diag option
LoggingInitializer.cs	Updated to enable file logging in diagnostic mode
Multiple test files	Updated tests to use DiagMode instead of DevMode

Comments suppressed due to low confidence (1)

src/Stryker.Core/Stryker.Core/Initialisation/InputFileResolver.cs:1

• The extra space before 'DiagModeInput' is inconsistent with the formatting of other lines. Remove the extra space to maintain consistent indentation.

using System;

[Copilot]

Pull Request Overview

Copilot reviewed 20 out of 20 changed files in this pull request and generated 4 comments.

[Copilot]

Pull Request Overview

Copilot reviewed 20 out of 20 changed files in this pull request and generated 3 comments.

[Copilot]

Pull Request Overview

Copilot reviewed 20 out of 20 changed files in this pull request and generated 1 comment.

[Copilot]

Pull Request Overview

Copilot reviewed 20 out of 20 changed files in this pull request and generated 4 comments.

[Copilot]

Pull Request Overview

Copilot reviewed 23 out of 23 changed files in this pull request and generated 3 comments.

[Copilot]

Pull Request Overview

Copilot reviewed 26 out of 26 changed files in this pull request and generated 3 comments.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
82.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud