public void Add_CategoryToDbSetCategories_When_Valid()
{
// Arrange
var fakeDrumsAcademyContext = new Mock <IDrumsAcademyContext>();
var fakeCategoriesDbSet = QueryableDbSetMock.GetQueryableMockDbSetFromList(this.GetCategories());
fakeDrumsAcademyContext.Setup(f => f.Categories).Returns(fakeCategoriesDbSet);
var sut = new Services.Data.CategoryService(fakeDrumsAcademyContext.Object);
var category = new Category()
{
Id = Guid.NewGuid(), Type = CategoryType.Theory
};
var categoriesCount = fakeCategoriesDbSet.Count();
// Act
sut.AddCategory(category);
categoriesCount += 1;
// Assert
Assert.AreEqual(categoriesCount, fakeCategoriesDbSet.Count());
}