public void GetImportantThingTest_ReturnsString()
{
var thing = new ImportantThingDefault();
var result = thing.GetImportantThing(-100);
Assert.AreEqual("magic string!", result);
}
public void GetImportantThingTest_ReturnsInt()
{
var thing = new ImportantThingDefault();
var result = thing.GetImportantThing(1000);
Assert.AreEqual(-1, result);
}