refactor: split mutation tests in two separate actions

[vbreuss]

This PR refactors the mutation testing pipeline to split execution into separate actions for better parallelization and maintainability. The mutation tests are now divided into two independent jobs that can run concurrently, followed by a dashboard aggregation step.

Key changes:

• Split the monolithic mutation test execution into separate targets for main library (aweXpect) and core library (aweXpect.Core)
• Introduced parallel GitHub Actions workflows for each mutation test component

[Copilot]

Pull Request Overview

This PR refactors the mutation testing pipeline to split execution into separate actions for better parallelization and maintainability. The mutation tests are now divided into two independent jobs that can run concurrently, followed by a dashboard aggregation step.

Key changes:

• Split the monolithic mutation test execution into separate targets for main library (aweXpect) and core library (aweXpect.Core)
• Introduced parallel GitHub Actions workflows for each mutation test component
• Added proper comment management for PR updates with project-specific mutation results

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 5 comments.

File	Description
Pipeline/Build.MutationTests.cs	Refactored mutation testing logic to support parallel execution with separate targets and improved PR comment handling
.github/workflows/ci.yml	Split mutation-tests job into two parallel jobs for main and core libraries
.github/workflows/build.yml	Added three-stage mutation testing workflow with parallel execution and centralized dashboard reporting

[github-actions]

Test Results

    14 files   - 24      14 suites   - 24   2m 52s ⏱️ +2s
14 358 tests  - 18  14 356 ✅  - 18  2 💤 ±0  0 ❌ ±0 
39 756 runs   - 72  39 754 ✅  - 72  2 💤 ±0  0 ❌ ±0 

Results for commit 0447d93. ± Comparison against base commit 02df387.

This pull request removes 1546 and adds 1528 tests. Note that renamed tests count towards both.

aweXpect.Core.Tests.Core.Exceptions.FailExceptionTests ‑ Message_ShouldBeSet(message: "message3d18911f-85c7-4522-80fc-b0194945305d")
aweXpect.Core.Tests.Core.Exceptions.FailExceptionTests ‑ Message_ShouldBeSet(message: "message4a3d6422-7bab-453d-a5cf-8d02336b59a1")
aweXpect.Core.Tests.Core.Exceptions.FailExceptionTests ‑ Message_ShouldBeSet(message: "messagefcc9e3e6-9856-4b1b-8024-9d963c5f2f6c")
aweXpect.Core.Tests.Core.Exceptions.SkipExceptionTests ‑ Message_ShouldBeSet(message: "message0072004b-4df5-43b0-b0cb-b81db73f822c")
aweXpect.Core.Tests.Core.Exceptions.SkipExceptionTests ‑ Message_ShouldBeSet(message: "messagec106a9da-fd79-42c0-a585-a2f05f053b45")
aweXpect.Core.Tests.Core.Exceptions.SkipExceptionTests ‑ Message_ShouldBeSet(message: "messagec7f5f5f1-3b11-4605-92e5-6030568948ea")
aweXpect.Core.Tests.Equivalency.EquivalencyOptionsExtensionsTests ‑ Generic_For_IgnoringMember_ShouldSetOptionForType(memberToIgnore: "memberToIgnore3b7bcdd4-416b-4702-bfb4-91d644e41727")
aweXpect.Core.Tests.Equivalency.EquivalencyOptionsExtensionsTests ‑ Generic_For_IgnoringMember_ShouldSetOptionForType(memberToIgnore: "memberToIgnore7fffe52e-a598-40df-8ffe-6ca347a7e4d5")
aweXpect.Core.Tests.Equivalency.EquivalencyOptionsExtensionsTests ‑ Generic_For_IgnoringMember_ShouldSetOptionForType(memberToIgnore: "memberToIgnore9b23e4d6-51cd-4a21-a99c-cd2329e3b731")
aweXpect.Core.Tests.FailTests ‑ Test_ShouldThrowException(reason: "reason30a94c9f-4d82-40b2-a0ac-edba5deee9b6")
…

aweXpect.Core.Tests.Core.Exceptions.FailExceptionTests ‑ Message_ShouldBeSet(message: "message716ef2cc-aebc-474b-b703-e49c24e96be2")
aweXpect.Core.Tests.Core.Exceptions.FailExceptionTests ‑ Message_ShouldBeSet(message: "message9da4fee0-c6a5-473e-b5d8-3b09f0f4ad5f")
aweXpect.Core.Tests.Core.Exceptions.FailExceptionTests ‑ Message_ShouldBeSet(message: "messageb85fce33-3672-4b07-9f8c-f2373f4dea4c")
aweXpect.Core.Tests.Core.Exceptions.SkipExceptionTests ‑ Message_ShouldBeSet(message: "message727ba742-3f69-4067-b6ed-bbafe10a711f")
aweXpect.Core.Tests.Core.Exceptions.SkipExceptionTests ‑ Message_ShouldBeSet(message: "message7714825c-546d-4e48-ae29-66405f4d47fa")
aweXpect.Core.Tests.Core.Exceptions.SkipExceptionTests ‑ Message_ShouldBeSet(message: "messagebb1278f5-5b47-4747-a604-b729a01ee4f4")
aweXpect.Core.Tests.Equivalency.EquivalencyOptionsExtensionsTests ‑ Generic_For_IgnoringMember_ShouldSetOptionForType(memberToIgnore: "memberToIgnore044b8050-5bbe-4fbc-913b-7b5c1a8436fe")
aweXpect.Core.Tests.Equivalency.EquivalencyOptionsExtensionsTests ‑ Generic_For_IgnoringMember_ShouldSetOptionForType(memberToIgnore: "memberToIgnore1123e68b-6522-47db-a861-da304f0dc02c")
aweXpect.Core.Tests.Equivalency.EquivalencyOptionsExtensionsTests ‑ Generic_For_IgnoringMember_ShouldSetOptionForType(memberToIgnore: "memberToIgnored1d42eb4-a7c2-4bee-80a2-08ca82b7aada")
aweXpect.Core.Tests.FailTests ‑ Test_ShouldThrowException(reason: "reason8e481ae5-91cf-48ea-a5c4-d56d85a5024e")
…

♻️ This comment has been updated with latest results.

[github-actions]

🚀 Benchmark Results

Details

BenchmarkDotNet v0.14.0, Ubuntu 24.04.2 LTS (Noble Numbat)

AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores

.NET SDK 8.0.413

[Host] : .NET 8.0.19 (8.0.1925.36514), X64 RyuJIT AVX2
Job=InProcess  Toolchain=InProcessEmitToolchain  IterationCount=15

LaunchCount=1  WarmupCount=10

Method	Mean	Error	StdDev	Gen0	Gen1	Allocated
Bool_aweXpect	201.0 ns	1.53 ns	1.28 ns	0.0281	-	472 B
Bool_FluentAssertions	246.4 ns	1.48 ns	1.39 ns	0.0567	-	952 B
Bool_TUnit	892.5 ns	6.13 ns	5.73 ns	0.1431	-	2408 B
Equivalency_aweXpect	300,456.3 ns	1,424.07 ns	1,189.17 ns	16.6016	0.4883	284940 B
Equivalency_FluentAssertions	2,327,448.9 ns	33,025.62 ns	30,892.19 ns	273.4375	46.8750	4584416 B
Equivalency_TUnit	693,927.9 ns	3,403.36 ns	3,016.99 ns	51.7578	2.9297	880545 B
Int_GreaterThan_aweXpect	218.3 ns	5.08 ns	4.50 ns	0.0467	-	784 B
Int_GreaterThan_FluentAssertions	254.5 ns	9.87 ns	9.23 ns	0.0730	-	1224 B
Int_GreaterThan_TUnit	1,215.9 ns	14.81 ns	13.85 ns	0.1774	-	2984 B
ItemsCount_AtLeast_aweXpect	472.9 ns	7.00 ns	6.21 ns	0.0854	-	1432 B
ItemsCount_AtLeast_FluentAssertions	497.0 ns	7.97 ns	7.45 ns	0.1192	-	2008 B
ItemsCount_AtLeast_TUnit	15,089.6 ns	198.67 ns	176.11 ns	1.6327	-	27480 B
String_aweXpect	363.7 ns	10.22 ns	9.56 ns	0.0672	-	1128 B
String_FluentAssertions	465.3 ns	5.06 ns	3.95 ns	0.1292	-	2168 B
String_TUnit	1,235.2 ns	16.35 ns	15.29 ns	0.1831	-	3072 B
StringArray_aweXpect	1,331.0 ns	4.59 ns	4.30 ns	0.1640	-	2744 B
StringArray_FluentAssertions	1,321.8 ns	20.10 ns	18.80 ns	0.2480	-	4152 B
StringArray_TUnit	3,328.5 ns	33.37 ns	31.21 ns	0.3128	-	5296 B
StringArrayInAnyOrder_aweXpect	1,546.8 ns	18.75 ns	17.54 ns	0.1736	-	2920 B
StringArrayInAnyOrder_FluentAssertions	153,482.2 ns	2,118.95 ns	1,982.06 ns	3.4180	-	63788 B
StringArrayInAnyOrder_TUnit	3,923.0 ns	43.33 ns	40.53 ns	0.3853	-	6488 B

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

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

See analysis details on SonarQube Cloud

[github-actions]

This is addressed in release v2.22.0.