[英]NUnit C# Generic Class Test Fixtures with constructor arguments in the class under test
I have a bunch of classes implementing an interface and having a constructor argument.我有一堆实现接口并具有构造函数参数的类。
For this classes i want to write a test with Generic Test Fixture pattern as documented in the nunit docs section: https://docs.nunit.org/articles/nunit/writing-tests/attributes/testfixture.html#generic-test-fixtures对于此类,我想使用通用测试夹具模式编写测试,如 nunit 文档部分所述: https://docs.nunit.org/articles/nunit/writing-tests/attributes/testfixture.html#generic-test-固定装置
Sample Classes i want to test:我要测试的示例类:
public class ClassToTest: IInterface
{
public ClassToTest(ConstructorArgument arg1)
{
....
}
}
class AnotherClassToTest: IInterface
{
public AnotherClassToTest(ConstructorArgument arg1)
{
....
}
}
TestClass:测试类:
[TestFixture(typeof(ClassToTest))]
[TestFixture(typeof(AnotherClassToTest))]
public class TestClass<TClasses> where TClasses : IInterface, new()
{
private IInterface _classUnderTest;
public TestClass()
{
ConstructorArgument args = new();
_classUnderTest = new TClasses(args); //This will not compile
//How to Pass constructor argument args?
}
[Test]
public void Test1()
{
...
}
}
How am i able to pass the necessary constructor arguments to TClasses?我如何能够将必要的构造函数 arguments 传递给 TClasses?
You could use Activator.CreateInstance for that case.对于这种情况,您可以使用Activator.CreateInstance 。
It should look something like:它应该看起来像:
_classUnderTest = (TClasses)Activator.CreateInstance(typeof(TClasses), new object[] { args });
You have already an interface that does abstract every concrete implementation of that - why do you need a generic?你已经有一个接口,它确实抽象了它的每个具体实现——为什么你需要一个通用的?
May be like this:可能是这样的:
[TestFixture(new ClassToTest(new ConstructorArgument()))]
[TestFixture(new AnotherClassToTest(new ConstructorArgument()))]
public class TestClass
{
private IInterface _classUnderTest;
public TestClass(IInterface classUnderTest)
: _classUnderTest(classUnderTest)
{}
}
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