public void OlderThan65_ContextWithSeveralPioneersDeadAndAlive_PioneersCurrentlyAreOlderThan65()
{
//Arrange. The CallOriginal method marks a mocked method/property call that
//should execute the original method/property implementation
Pioneers pioneers = Mock.Create <Pioneers>(Behavior.CallOriginal);
//Arrange. private _datacontext object
Mock.NonPublic.Arrange <IList <AviationPioneer> >(pioneers, "_dataContext")
.Returns(DataSource.Pioneers());
//Mock the CalculateAge function used by the OlderThan65 function.
//The CalculateAge function is already tested in CalculateAge_* test methods
/* You can arrange the CalculateAge function for each pioneers available in the context
* like this:
* Mock.Arrange(() => Pioneers.CalculateAge(new DateTime(1931, 5, 13)))
* .Returns(81); //date of birth
*
* Mock.Arrange(() => Pioneers.CalculateAge(new DateTime(1982, 5, 20)))
* //when set this return value to 66 the result count is 3..
* .Returns(30);
*
* Mock.Arrange(() => Pioneers.CalculateAge(new DateTime(1930, 8, 5)))
* .Returns(82);
*/
//Or make your own test implementation of the calculateAge function.
Mock.Arrange(() => Pioneers.CalculateAge(Arg.IsAny <DateTime>()))
.Returns((DateTime birth) =>
{
//Your test implementation here, for example
return(2012 - birth.Year);
});
//Act. Call the orginal implementation, you already arranged a different
//implementation for the _datacontext.. and the CalculateAge function...
var result = pioneers.OlderThan65();
//Assert
//Based on the test value for calculateAge and the test context
//there are two person older than 65
Assert.IsTrue(result.Count() == 2);
}
public void OlderThan65_ContextWithSeveralPioneersDeadAndAlive_PioneersCurrentlyAreOlderThan65_NonMocked()
{
// Arrange. Mock without a mocking framework
Pioneers pioneers = new Pioneers(Source.XmlFile); //1st problem, you create a real object, is this xmlfile available???
//Arrange. private _datacontext object
PropertyInfo prop = typeof(Pioneers).GetProperty("_dataContext", BindingFlags.NonPublic | BindingFlags.Instance);
prop.SetValue(pioneers, DataSource.Pioneers(), null);
/* We can't mock the calculate function!
* Mock.Arrange(() => Pioneers.CalculateAge(new DateTime(1931, 5, 13)))
* .Returns(....*/
/* * * * * * * * * * * * Test will fail after some time.. * * * * * * * * * * * * * * * */
//Act.
var result = pioneers.OlderThan65();
//Assert
Assert.IsTrue(result.Count() == 2);
}