public void EnsureNewFoosAreSaved()
{
var mockFooSaver = new Mock <IFooSaverService>();
var systemUnderTest = new FooController(mockFooSaver.Object);
systemUnderTest.PersistTheFoo(new Foo {
Name = "New Foo", ExpiryDate = new DateTime(2038, 1, 1)
});
mockFooSaver.Verify(m => m.Save(It.IsAny <Foo>()), Times.Once);
}
public void PersistingNullFooMustThrow()
{
var systemUnderTest = new FooController(new Mock <IFooSaverService>().Object);
Assert.Throws <ArgumentNullException>(() => systemUnderTest.PersistTheFoo(null));
}