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TypeLoader: implement Try methods (#1358)

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* TypeLoader: implement Try methods

* fix
This commit is contained in:
Stef Heyenrath
2025-08-31 08:48:29 +02:00
committed by GitHub
parent 5c5e104f2c
commit 371bfdc160
10 changed files with 190 additions and 81 deletions
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45
test/WireMock.Net.Tests/Util/TypeLoaderTests.cs
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@@ -1,6 +1,5 @@
// Copyright © WireMock.Net
using System;
using System.IO;
using AnyOfTypes;
using FluentAssertions;
@@ -56,7 +55,7 @@ public class TypeLoaderTests
}
[Fact]
public void LoadNewInstance()
public void TryLoadNewInstance()
{
var current = Directory.GetCurrentDirectory();
try
@@ -65,10 +64,11 @@ public class TypeLoaderTests
// Act
AnyOf<string, StringPattern> pattern = "x";
var result = TypeLoader.LoadNewInstance<ICSharpCodeMatcher>(MatchBehaviour.AcceptOnMatch, MatchOperator.Or, pattern);
var result = TypeLoader.TryLoadNewInstance<ICSharpCodeMatcher>(out var instance, MatchBehaviour.AcceptOnMatch, MatchOperator.Or, pattern);
// Assert
result.Should().NotBeNull();
result.Should().BeTrue();
instance.Should().BeOfType<CSharpCodeMatcher>();
}
finally
{
@@ -77,63 +77,66 @@ public class TypeLoaderTests
}
[Fact]
public void LoadNewInstanceByFullName()
public void TryLoadNewInstanceByFullName()
{
// Act
var result = TypeLoader.LoadNewInstanceByFullName<IDummyInterfaceWithImplementation>(typeof(DummyClass).FullName!);
var result = TypeLoader.TryLoadNewInstanceByFullName<IDummyInterfaceWithImplementation>(out var instance, typeof(DummyClass).FullName!);
// Assert
result.Should().BeOfType<DummyClass>();
result.Should().BeTrue();
instance.Should().BeOfType<DummyClass>();
}
[Fact]
public void LoadStaticInstance_ShouldOnlyCreateInstanceOnce()
public void TryLoadStaticInstance_ShouldOnlyCreateInstanceOnce()
{
// Arrange
var counter = new Counter();
// Act
var result = TypeLoader.LoadStaticInstance<IDummyInterfaceWithImplementationUsedForStaticTest>(counter);
TypeLoader.LoadStaticInstance<IDummyInterfaceWithImplementationUsedForStaticTest>(counter);
var result = TypeLoader.TryLoadStaticInstance<IDummyInterfaceWithImplementationUsedForStaticTest>(out var staticInstance, counter);
TypeLoader.TryLoadStaticInstance(out staticInstance, counter);
// Assert
result.Should().BeOfType<DummyClass1UsedForStaticTest>();
result.Should().BeTrue();
staticInstance.Should().BeOfType<DummyClass1UsedForStaticTest>();
counter.Value.Should().Be(1);
}
[Fact]
public void LoadStaticInstanceByFullName_ShouldOnlyCreateInstanceOnce()
public void TryLoadStaticInstanceByFullName_ShouldOnlyCreateInstanceOnce()
{
// Arrange
var counter = new Counter();
var fullName = typeof(DummyClass2UsedForStaticTest).FullName!;
// Act
var result = TypeLoader.LoadStaticInstanceByFullName<IDummyInterfaceWithImplementationUsedForStaticTest>(fullName, counter);
TypeLoader.LoadStaticInstanceByFullName<IDummyInterfaceWithImplementationUsedForStaticTest>(fullName, counter);
var result = TypeLoader.TryLoadStaticInstanceByFullName<IDummyInterfaceWithImplementationUsedForStaticTest>(out var staticInstance, fullName, counter);
TypeLoader.TryLoadStaticInstanceByFullName(out staticInstance, fullName, counter);
// Assert
result.Should().BeOfType<DummyClass2UsedForStaticTest>();
result.Should().BeTrue();
staticInstance.Should().BeOfType<DummyClass2UsedForStaticTest>();
counter.Value.Should().Be(1);
}
[Fact]
public void LoadNewInstance_ButNoImplementationFoundForInterface_ThrowsException()
public void TryLoadNewInstance_ButNoImplementationFoundForInterface_ReturnsFalse()
{
// Act
Action a = () => TypeLoader.LoadNewInstance<IDummyInterfaceNoImplementation>();
var result = TypeLoader.TryLoadNewInstance<IDummyInterfaceNoImplementation>(out _);
// Assert
a.Should().Throw<DllNotFoundException>().WithMessage("No dll found which implements Interface 'WireMock.Net.Tests.Util.TypeLoaderTests+IDummyInterfaceNoImplementation'.");
result.Should().BeFalse();
}
[Fact]
public void LoadNewInstanceByFullName_ButNoImplementationFoundForInterface_ThrowsException()
public void TryLoadNewInstanceByFullName_ButNoImplementationFoundForInterface_ReturnsFalse()
{
// Act
Action a = () => TypeLoader.LoadNewInstanceByFullName<IDummyInterfaceWithImplementation>("xyz");
var result = TypeLoader.TryLoadNewInstanceByFullName<IDummyInterfaceWithImplementation>(out _, "xyz");
// Assert
a.Should().Throw<DllNotFoundException>().WithMessage("No dll found which implements Interface 'WireMock.Net.Tests.Util.TypeLoaderTests+IDummyInterfaceWithImplementation' and has FullName 'xyz'.");
result.Should().BeFalse();
}
}