public void Test1()
{
//Arrange
ProductTest objectProductTest = new ProductTest();
//Act
List <ProductInfo> result1 = objectProductTest.testDisplayAll();
IEnumerable <ProductInfo> result2 = objectProductTest.testSort();
int num1 = result1.Count;
//Assert
Assert.IsType <List <ProductInfo> >(result1);
Assert.IsType <List <ProductInfo> >(result2);
Assert.Equal(9, num1);
}
