PosInfoMoq2004.md

PosInfoMoq2004: The Callback() delegate expression must match the signature of the mocked method

Property	Value
Rule ID	PosInfoMoq2004
Title	Constructor arguments cannot be passed for interface mocks.
Category	Compilation
Default severity	Error

Cause

Constructor arguments has been passed to a mocked interface.

Rule description

It is not possible to pass contructor arguments to mocked interface. Is only possible with non-sealed class or abstract class.

[Fact]
public void Test()
{
    var service1 = new Mock<IService>("Argument 1", 2);                         // No constructor arguments can be passed to mocked interface.
    var service2 = new Mock<IService>(MockBehavior.Strict, "Argument 1", 2);    // Same if we use the MockBehavior.
}

public interface IService
{
}

How to fix violations

To fix a violation of this rule, be sure to pass parameters to mocked abstract class.

When to suppress warnings

Do not suppress an error from this rule. If bypassed, the execution of the unit test will be failed with a MoqException thrown with the "Constructor arguments cannot be passed for interface mocks." message.