//[Fact]
internal void CanVerify()
{
var calculator = Mock.Of <ICalculator>();
calculator.Add(2, 3).Returns(5).Once();
calculator.Mode.Returns(CalculatorMode.Scientific).Exactly(2);
var mock = Mock.Get(calculator);
foreach (var invocation in mock.Invocations)
{
output.WriteLine((string)invocation.Context[nameof(Environment.StackTrace)]);
}
// Syntax-based, follows straightforward setup approach, no lambdas.
Verify(calculator).Mode = CalculatorMode.Scientific;
Verify(calculator).Add(2, 3);
// Verify all "verifiable" calls, i.e. those with
// a Once/Never/etc. setup.
Verify(calculator);
// Long form, with no lambda
Verify.Called(calculator);
// equivalent non-syntax version
//calculator.Verify().Add(2, 3);
Verify(calculator).Add(1, 1).Never();
// Explicit Verify, still no lambdas, long form of Syntax
Verify.Called(calculator).Add(2, 3).Exactly(2);
// Explicit Verify, still no lambdas, long form of Syntax
Verify.NotCalled(calculator).Add(2, 3);
// For the case where you want keep the mock in "running" mode after the verify.
Verify.Called(() => calculator.Add(2, 3).Once());
Verify.NotCalled(() => calculator.TurnOn());
// More advanced verification, access calls via lambda
Verify.Calls(
() => calculator.Add(2, 3),
calls => Assert.Single(calls));
// Works for void/action
Verify.Calls(
() => calculator.TurnOn(),
calls => Assert.Single(calls));
// Verify all "verifiable" calls, i.e. those with
// a Once/Never/etc. setup.
Verify.Calls(calculator);
// calculator.Verify();
}
public void VerifyCalls()
{
var calculator = Mock.Of <ICalculator>();
calculator.Setup(c => c.TurnOn()).Once();
calculator.Add(2, 3).Returns(5).Once();
Assert.Throws <VerifyException>(() => Verify.Calls(calculator));
calculator.TurnOn();
calculator.Add(2, 3);
Verify.Calls(calculator);
}
public void VerifyCallsCustom()
{
var calculator = Mock.Of <ICalculator>();
calculator.Setup(c => c.TurnOn()).Once();
calculator.Add(2, 3).Returns(5).Once();
Verify.Calls(
() => calculator.TurnOn(),
calls => Assert.Empty(calls));
calculator.TurnOn();
Verify.Calls(
() => calculator.TurnOn(),
calls => Assert.Single(calls));
}