feat: add IsOneOf<T>

[vbreuss]

This PR adds a new IsOneOf<T> parameter matcher to the Mockolate library that allows matching parameters against a collection of possible values. Additionally, it refactors the test class naming convention from MatchTests to ItTests to better align with the It class being tested.

Key changes:

• Implements It.IsOneOf<T>() method for matching parameters against multiple values
• Renames test class from MatchTests to ItTests across all test files

---

• Fixes Add It.IsOneOf(params T[]) #294

[Copilot]

Pull request overview

This PR adds a new IsOneOf<T> parameter matcher to the Mockolate library that allows matching parameters against a collection of possible values. Additionally, it refactors the test class naming convention from MatchTests to ItTests to better align with the It class being tested.

Key changes:

• Implements It.IsOneOf<T>() method for matching parameters against multiple values
• Renames test class from MatchTests to ItTests across all test files
• Reorganizes tests by moving null-matching tests to a dedicated IsNullTests class

Reviewed changes

Copilot reviewed 18 out of 18 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
Source/Mockolate/It.IsOneOf.cs	Implements the new IsOneOf<T> method with internal ParameterIsOneOfMatch<T> class
Tests/Mockolate.Tests/ItTests.IsOneOfTests.cs	Adds comprehensive test coverage for IsOneOf<T> including covariance support
Tests/Mockolate.Tests/ItTests.cs	Renames parent test class from MatchTests to ItTests
Tests/Mockolate.Tests/ItTests.*.cs	Updates all nested test classes to use ItTests parent and consistent Is*Tests naming
Tests/Mockolate.Tests/ItTests.IsNullTests.cs	Moves nullable value matching test from IsTests to IsNullTests
Tests/Mockolate.Api.Tests/Expected/Mockolate_*.txt	Updates API surface expectations for all target frameworks

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

Test Results

    14 files  ± 0      14 suites  ±0   4m 51s ⏱️ +17s
 1 546 tests +12   1 545 ✅ +12  1 💤 ±0  0 ❌ ±0 
10 311 runs  +84  10 310 ✅ +84  1 💤 ±0  0 ❌ ±0 

Results for commit 4586c0b. ± Comparison against base commit 4424f6f.

This pull request removes 114 and adds 126 tests. Note that renamed tests count towards both.

Mockolate.Tests.MatchTests ‑ InvokeCallbacks_WithCorrectType_ShouldInvokeCallback
Mockolate.Tests.MatchTests ‑ InvokeCallbacks_WithDifferentType_ShouldNotInvokeCallback
Mockolate.Tests.MatchTests ‑ InvokeCallbacks_WithNull_WhenTypeIsNotNullable_ShouldNotInvokeCallback
Mockolate.Tests.MatchTests ‑ InvokeCallbacks_WithNull_WhenTypeIsNullable_ShouldInvokeCallback
Mockolate.Tests.MatchTests ‑ ShouldOnlyHaveOneParameterlessPrivateConstructor
Mockolate.Tests.MatchTests ‑ ToString_NamedParameter_ShouldReturnExpectedValue
Mockolate.Tests.MatchTests+AnyOutTests ‑ ShouldCheckType(value: "foo", expectMatch: False)
Mockolate.Tests.MatchTests+AnyOutTests ‑ ShouldCheckType(value: 123, expectMatch: True)
Mockolate.Tests.MatchTests+AnyOutTests ‑ ShouldCheckType(value: 42, expectMatch: False)
Mockolate.Tests.MatchTests+AnyOutTests ‑ ShouldCheckType(value: null, expectMatch: True)
…

Mockolate.Tests.ItTests ‑ InvokeCallbacks_WithCorrectType_ShouldInvokeCallback
Mockolate.Tests.ItTests ‑ InvokeCallbacks_WithDifferentType_ShouldNotInvokeCallback
Mockolate.Tests.ItTests ‑ InvokeCallbacks_WithNull_WhenTypeIsNotNullable_ShouldNotInvokeCallback
Mockolate.Tests.ItTests ‑ InvokeCallbacks_WithNull_WhenTypeIsNullable_ShouldInvokeCallback
Mockolate.Tests.ItTests ‑ ShouldOnlyHaveOneParameterlessPrivateConstructor
Mockolate.Tests.ItTests ‑ ToString_NamedParameter_ShouldReturnExpectedValue
Mockolate.Tests.ItTests+IsAnyOutTests ‑ ShouldCheckType(value: "foo", expectMatch: False)
Mockolate.Tests.ItTests+IsAnyOutTests ‑ ShouldCheckType(value: 123, expectMatch: True)
Mockolate.Tests.ItTests+IsAnyOutTests ‑ ShouldCheckType(value: 42, expectMatch: False)
Mockolate.Tests.ItTests+IsAnyOutTests ‑ ShouldCheckType(value: null, expectMatch: True)
…

[github-actions]

🚀 Benchmark Results

Details

BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.3 LTS (Noble Numbat)

AMD EPYC 7763 2.59GHz, 1 CPU, 4 logical and 2 physical cores

.NET SDK 10.0.101

[Host] : .NET 10.0.1 (10.0.1, 10.0.125.57005), X64 RyuJIT x86-64-v3
Job=InProcess  Toolchain=InProcessEmitToolchain  IterationCount=15

LaunchCount=1  WarmupCount=10

Method	Mean	Error	StdDev	Gen0	Gen1	Allocated
Simple_Mockolate	1.478 μs	0.0105 μs	0.0098 μs	0.2232	-	3.66 KB
Simple_Moq	175.058 μs	0.8663 μs	0.7680 μs	0.4883	-	14.77 KB
Simple_NSubstitute	5.673 μs	0.0258 μs	0.0241 μs	0.5569	0.0076	9.14 KB
Simple_FakeItEasy	6.231 μs	0.0271 μs	0.0241 μs	0.4959	-	8.11 KB

[github-actions]

This is addressed in release v0.44.0.