public void ShouldReturnAvailableTraverserObjWhenNextIsCalled(object traverserObj)
{
var traversal = new TestTraversal(new List <object> {
traverserObj
});
var actualObj = traversal.Next();
Assert.Equal(traverserObj, actualObj);
Assert.Equal(null, traversal.Next());
}
public void ShouldReturnNullWhenNextIsCalledAndNoTraverserIsAvailable()
{
var expectedFirstObj = 1;
var traversal = new TestTraversal(new List <object> {
expectedFirstObj
});
var actualFirstObj = traversal.Next();
var actualSecondObj = traversal.Next();
Assert.Equal(expectedFirstObj, actualFirstObj);
Assert.Null(actualSecondObj);
}
public void ShouldApplyStrategiesWhenNextIsCalledAndNoTraversersPresent()
{
const int expectedObj = 531;
var testStrategy = new TestTraversalStrategy(new List <Traverser> {
new Traverser(expectedObj)
});
var testTraversal = new TestTraversal(new List <ITraversalStrategy> {
testStrategy
});
var actualObj = testTraversal.Next();
Assert.Equal(expectedObj, actualObj);
}
public void ShouldCheckHasNext(object traverserObj)
{
var traversal = new TestTraversal(new List <object> {
traverserObj
});
Assert.Equal(true, traversal.HasNext());
Assert.Equal(true, traversal.HasNext());
var actualObj = traversal.Next();
Assert.Equal(traverserObj, actualObj);
Assert.Equal(false, traversal.HasNext());
Assert.Equal(false, traversal.HasNext());
}
public void ShouldReturnCorrectNrOfResultObjsWhenNextIsCalledWithAmountArgument(int nrOfResults)
{
var objs = new List <object>(20);
for (var i = 0; i < 20; i++)
{
objs.Add(i);
}
var traversal = new TestTraversal(objs);
var traversedObjs = traversal.Next(nrOfResults);
var traversedObjsList = traversedObjs.ToList();
Assert.Equal(nrOfResults, traversedObjsList.Count);
for (var i = 0; i < nrOfResults; i++)
{
Assert.Equal(objs[i], traversedObjsList[i]);
}
}
