feat: migrate NSubstitute Raise.Event/EventWith to Mock.Raise

[vbreuss]

This pull request adds support for migrating NSubstitute Raise.Event and Raise.EventWith event-raising patterns to the equivalent Mockolate event-raising syntax in the code fixer. It introduces logic to correctly translate various usages of event raising, handling different argument patterns, and adds comprehensive tests to ensure correctness.

NSubstitute event raising migration:

• Added a new method FindAndBuildRaiseReplacements to identify and translate Raise.Event and Raise.EventWith usages on event subscriptions to the appropriate Mock.Raise.EventName(...) syntax, handling different argument scenarios (e.g., no arguments, only event args, or sender plus event args).
• Integrated the new replacements into the main conversion pipeline by updating the list of nodes to replace and the node replacement logic in ConvertAssertionAsync.

Testing:

• Added a new test class RaiseTests in NSubstituteCodeFixProviderTests.RaiseTests.cs with multiple test cases covering all supported event-raising patterns, ensuring correct translation for delegate-type events, no-argument events, events with only event args, and events with both sender and event args.

[github-actions]

Test Results

  3 files  ± 0    3 suites  ±0   2m 4s ⏱️ ±0s
112 tests + 4  112 ✅ + 4  0 💤 ±0  0 ❌ ±0 
336 runs  +12  336 ✅ +12  0 💤 ±0  0 ❌ ±0 

Results for commit 34e6c95. ± Comparison against base commit ecc622f.

[Copilot]

Pull request overview

Adds NSubstitute Raise.Event / Raise.EventWith migration support to the NSubstitute code fix provider, aligning event-raising patterns with Mockolate’s Mock.Raise API.

Changes:

• Introduces new unit tests covering core Raise.Event and Raise.EventWith rewrite scenarios.
• Extends NSubstituteCodeFixProvider to detect += Raise.*(...) patterns on tracked substitutes and rewrite them to sub.Mock.Raise.<EventName>(...).

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 4 comments.

File	Description
Tests/Mockolate.Migration.Tests/NSubstituteCodeFixProviderTests.RaiseTests.cs	Adds test coverage for Raise-to-Mock.Raise migrations.
Source/Mockolate.Migration.Analyzers.CodeFixers/NSubstituteCodeFixProvider.cs	Implements Raise replacement detection and argument translation logic.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
85.7% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

This is addressed in release v0.5.0.