public void NearbyWords_should_HandleNullWords()
{
//arrange
var target = new NearbyWords(new WordHelperStub());
//act
var result = target.GetWords(null);
//assert
result.Count().ShouldEqual(0);
}
public void NearbyWords_should_ReturnValidResults()
{
//arrange
var target = new NearbyWords(new WordHelperStub());
//act
var result = target.GetWords("gi").ToList();
//assert
result.ShouldContain("hi");
result.ShouldContain("go");
}
public void NearbyWords_should_ReturnCorrectNumberOfPermutations()
{
//arrange
var helperMock = new Mock <IWordHelper>();
helperMock.Setup(h => h.IsWord(It.IsAny <string>())).Returns(true);
helperMock.Setup(h => h.LettersNear(It.IsAny <char>())).Returns(new List <char>()
{
'a', 'b', 'c'
});
var target = new NearbyWords(helperMock.Object);
//act
var result = target.GetWords("abc");
//assert
result.Count().ShouldEqual(27);
}