public void ShouldAssertProjectionWhenCombinedWithWhere()
{
var simpleDataInstance = new SimpleData();
// ARRANGE - When simpleDataInstance.Products_GET is called, it should return expected collection.
Mock.Arrange(() => simpleDataInstance.Products).ReturnsCollection(ReturnExpextedCollectionOfProducts());
// ACT - Applying a LINQ query for simpleDataMock.Products.
var actual = (from p in simpleDataInstance.Products
where p.UnitsInStock == 50
select new { p.ProductID, p.ProductName }).SingleOrDefault();
// ASSERT
Assert.AreEqual(2, actual.ProductID);
}
public void ShouldAssertWithJoinClause()
{
var simpleDataInstance = new SimpleData();
// ARRANGE
// Arranging: When simpleDataInstance.Products_GET is called, it should return expected products collection.
Mock.Arrange(() => simpleDataInstance.Products).ReturnsCollection(ReturnExpextedCollectionOfProducts());
// Arranging: When simpleDataInstance.Categories_GET is called, it should return expected categories collection.
Mock.Arrange(() => simpleDataInstance.Categories).ReturnsCollection(ReturnExpectedCollectionOfCategories());
// ACT - Applying a LINQ query for simpleDataMock.Products.
var actual = from product in simpleDataInstance.Products
join category in simpleDataInstance.Categories on product.CategoryID equals category.CategoryID
select category.CategoryName;
// ASSERT
Assert.AreEqual(3, actual.Count());
}
public void ShouldAssertWithExpressionAsAnArgument()
{
int expectedId = 10;
// ARRANGE
var simpleDataInstance = new SimpleData();
// Arranging: When simpleDataInstance.Products_GET is called, it should return expected products collection.
Mock.Arrange(() => simpleDataInstance.Products).ReturnsCollection(ReturnExpextedCollectionOfProducts());
// Directly arranging a chain call with LINQ query in it. If called with the exact parameters, it should return expectedId.
var datum = simpleDataInstance.Products.Where(x => x.ProductID == 2).FirstOrDefault();
Mock.Arrange(() => datum.GetId()).Returns(expectedId);
// ACT
Product actual = simpleDataInstance.GetProduct(2);
// ASSERT
Assert.AreEqual(expectedId, actual.GetId());
}
