public void PassParametersToAllAddedMethods()
{
var input = "My input string";
_mockInterface1.Setup(i => i.CountLetters(It.Is <string>(s => s == input)))
.Verifiable();
_mockInterface2.Setup(i => i.CountLetters(It.Is <string>(s => s == input)))
.Verifiable();
// Create two delegate instances and use +operator to combine them
//CountLettersDelegate del1 = _mockInterface1.Object.CountLetters;
//CountLettersDelegate del2 = _mockInterface2.Object.CountLetters;
// create a multicast delegate that calls both methods
//var mcd = del1 + del2;
// OR create a delegate and use +=operator to add other method
var mcd = new CountLettersDelegate(_mockInterface1.Object.CountLetters);
mcd += _mockInterface2.Object.CountLetters;
var output = mcd(input);
// make sure both mock methods were called
_mockInterface1.Verify();
_mockInterface2.Verify();
}
public void WorkWithAnonymousMethodsToo()
{
CountLettersDelegate del = (string s) => { return(s.Length * s.Length); };
var input = "Howdy!!!";
Assert.Equal(input.Length * input.Length, del(input));
}
public void WorkWithStaticMethodsToo()
{
var del = new CountLettersDelegate(SomeStaticClass.CountLetters);
var input = "Howdy!!!";
Assert.Equal(input.Length, del(input));
}
public void ReturnValueFromMethod()
{
var input = "My input string";
_mockInterface.Setup(i => i.CountLetters(input))
.Returns(input.Length);
var del = new CountLettersDelegate(_mockInterface.Object.CountLetters);
var result = del(input);
// make sure the delegate returns the same value as the method
Assert.Equal(input.Length, result);
}
public void PassParametersToMethod()
{
var input = "My input string";
_mockInterface.Setup(i => i.CountLetters(It.Is <string>(s => s == input)))
.Verifiable();
// CountLettersDelegate d = _mockInterface.Object.CountLetters;
// OR
var del = new CountLettersDelegate(_mockInterface.Object.CountLetters);
del(input);
// make sure the delegate called the method on the mock
_mockInterface.Verify();
}
public void ReturnValueFromLastInvokedMethod()
{
var input = "My input string";
_mockInterface1.Setup(i => i.CountLetters(It.Is <string>(s => s == input)))
.Returns(1);
_mockInterface2.Setup(i => i.CountLetters(It.Is <string>(s => s == input)))
.Returns(2);
CountLettersDelegate del1 = _mockInterface1.Object.CountLetters;
CountLettersDelegate del2 = _mockInterface2.Object.CountLetters;
// create a multicast delegate that calls both methods
var mcd = del1 + del2;
var output = mcd(input);
// make sure return value from last method is returned
Assert.Equal(2, output);
}
public void NotInvokeRemovedMethods()
{
var input = "My input string";
_mockInterface1.Setup(i => i.CountLetters(It.Is<string>(s => s == input)))
.Verifiable();
_mockInterface2.Setup(i => i.CountLetters(It.Is<string>(s => s == input)))
.Verifiable();
CountLettersDelegate del = _mockInterface1.Object.CountLetters;
del += _mockInterface2.Object.CountLetters;
// remove the method from mock interface 1
del -= _mockInterface1.Object.CountLetters;
var output = del(input);
// make sure mock interface 1 method wasn't called and 2 was called
_mockInterface1.Verify(i => i.CountLetters(It.IsAny<string>()), Times.Never);
_mockInterface2.Verify();
}
