refactor: migrate to TUnit

[vbreuss]

This PR migrates the test framework from xUnit to TUnit by replacing test attributes and updating helper utilities.

Key Changes

• Replaced [Fact] attributes with [Test] throughout test files
• Replaced [Theory]/[InlineData] with [Test]/[Arguments] for parameterized tests
• Changed global using from Xunit to TUnit in the test helpers
• Added a new Record helper class to replace xUnit's Record.Exception functionality
• Updated assertion syntax in delegate tests to use aweXpect instead of xUnit assertions

[Copilot]

Pull Request Overview

This PR migrates the test framework from xUnit to TUnit by replacing test attributes and updating helper utilities.

Key Changes

• Replaced [Fact] attributes with [Test] throughout test files
• Replaced [Theory]/[InlineData] with [Test]/[Arguments] for parameterized tests
• Changed global using from Xunit to TUnit in the test helpers
• Added a new Record helper class to replace xUnit's Record.Exception functionality
• Updated assertion syntax in delegate tests to use aweXpect instead of xUnit assertions

Reviewed Changes

Copilot reviewed 94 out of 94 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
Tests/Mockolate.Tests/TestHelpers/Usings.cs	Updated global using from Xunit to TUnit
Tests/Mockolate.Tests/TestHelpers/Record.cs	Added Record helper class with Exception method for capturing exceptions
Tests/Mockolate.Tests/Verify/*.cs	Migrated test attributes from [Fact] to [Test] and [Theory]/[InlineData] to [Test]/[Arguments]
Tests/Mockolate.Tests/MockDelegates/DelegateTests.cs	Updated assertions from xUnit Assert to aweXpect syntax
Tests/Mockolate.Tests/Mock*/*.cs	Migrated all test attributes to TUnit equivalents across all mock test files

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[github-actions]

Test Results

0 files   -    14  0 suites   - 14   0s ⏱️ - 3m 22s
0 tests  - 1 189  0 ✅  - 1 188  0 💤  - 1  0 ❌ ±0 
0 runs   - 7 879  0 ✅  - 7 878  0 💤  - 1  0 ❌ ±0 

Results for commit fb8ec75. ± Comparison against base commit f4b9357.

♻️ This comment has been updated with latest results.

[github-actions]

🚀 Benchmark Results

Details

BenchmarkDotNet v0.14.0, Ubuntu 24.04.3 LTS (Noble Numbat)

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

.NET SDK 10.0.100

[Host] : .NET 10.0.0 (10.0.25.52411), X64 RyuJIT AVX2
Job=InProcess  Toolchain=InProcessEmitToolchain  IterationCount=15

LaunchCount=1  WarmupCount=10

Method	Mean	Error	StdDev	Gen0	Gen1	Allocated
Simple_Mockolate	1.388 μs	0.0269 μs	0.0239 μs	0.1984	-	3.24 KB
Simple_Moq	178.191 μs	1.0326 μs	0.9659 μs	0.4883	-	14.55 KB
Simple_NSubstitute	5.857 μs	0.0543 μs	0.0508 μs	0.5569	0.0076	9.14 KB
Simple_FakeItEasy	6.663 μs	0.0299 μs	0.0249 μs	0.4959	-	8.11 KB

[Copilot]

Pull Request Overview

Copilot reviewed 96 out of 96 changed files in this pull request and generated no new comments.

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