[TestMethod] //A value test
public void GettingTopFiveReviews_WhenFiveExist_ReturnsFiveInDescendingOrder()
{
//Arrange
var mockContext = Mock.Create <FruitFinderContext>().PrepareMock();
var reviews = new List <Review>();
var builder = new FruitFinderDalBuilder().WithContext(mockContext);
var numberToInclude = 5;
for (int i = 0; i < numberToInclude * 2; i++)
{
var review = builder.MakeReview();
review.VoteTally = i;
reviews.Add(review);
}
mockContext.Reviews.Bind(reviews);
var dal = builder.Build();
//Act
var result = dal.GetTopReviews(numberToInclude);
//Assert
result.Count().Should().Be(numberToInclude,
"the list should have " + numberToInclude + " reviews");
result.Should().BeInDescendingOrder(x => x.VoteTally,
"the reviews should be in descending order by VoteTally");
}
public void SavingAReview_WhenTheReviewIsNull_RaisesAnArgumentNullException()
{
//Arrange
var builder = new FruitFinderDalBuilder();
var dal = builder.Build();
Review review = null;
//Act
dal.SaveReview(review);
}
public void SavingAReview_WhenNoFruitIncluded_RaisesAnApplicationException()
{
//Arrange
var builder = new FruitFinderDalBuilder();
var dal = builder.Build();
var review = builder.MakeReview();
review.FruitId = 0;
review.Fruit = null;
//Act
dal.SaveReview(review);
}
public void SavingAReview_WhenSuccessful_CallsContextSaveChanges()
{
//Arrange
var mockContext = EntityFrameworkMock.Create <IFruitFinderContext>();
Mock.Arrange(() => mockContext.SaveChanges()).OccursOnce();
var builder = new FruitFinderDalBuilder().WithContext(mockContext);
var dal = builder.Build();
var review = builder.MakeReview();
//Act
dal.SaveReview(review);
//Assert
Mock.Assert(mockContext);
}
public void SavingAReview_WhenItIsNew_SetsTheAddedByAndWhen()
{
//Arrange
var builder = new FruitFinderDalBuilder();
var dal = builder.Build();
var review = builder.MakeReview();
var defaultDate = builder.GetDateTimeService().UtcNow().AddDays(-1);
review.AddedWhen = defaultDate;
//Act
var result = dal.SaveReview(review);
//Assert
result.AddedBy.Should().BeGreaterThan(0, "the added by Id should be set.");
result.AddedWhen.Should().BeAfter(defaultDate, "the added when should be set.");
}
public void SavingAReview_WhenUpdatingIt_UpdatesTheUpdatedWhenAndBy()
{
//Arrange
var builder = new FruitFinderDalBuilder();
var dal = builder.Build();
var dateTimeService = builder.GetDateTimeService();
var review = builder.MakeReview();
review.ReviewId = 1;
review.UpdatedBy = FruitFinderDalBuilder.SecurityServiceUserId + 1;
review.UpdatedWhen = dateTimeService.UtcNow().AddDays(-1);
//Act
dal.SaveReview(review);
//Assert
review.UpdatedWhen.ShouldBeEquivalentTo(dateTimeService.UtcNow(),
"the updated date should be set to UtcNow when the review is saved");
review.UpdatedBy.ShouldBeEquivalentTo(FruitFinderDalBuilder.SecurityServiceUserId,
"the updated by should be set to the current user when a review is saved");
}