public async Task AllProducts_Exceptions()
{
var entityManager = new EntityManager(_serviceName);
// All instances of Product
var query = new EntityQuery <Product>();
// Capture result using try-catch
try
{
var results = await entityManager.ExecuteQuery(query);
var count = results.Count();
Assert.IsTrue(count > 0, "Product query returned " + count + " Products");
}
catch (Exception e)
{
var message = TestFns.FormatException(e);
Assert.Fail(message);
}
}
public async Task AllProducts_Task()
{
var entityManager = new EntityManager(_serviceName);
// All instances of Product
var query = new EntityQuery <Product>(); // Alternate way to create a basic EntityQuery
// Handle async Task results explicitly
await entityManager.ExecuteQuery(query).ContinueWith(task =>
{
if (task.IsFaulted)
{
var message = TestFns.FormatException(task.Exception);
Assert.Fail(message);
}
else
{
var count = task.Result.Count();
Assert.IsTrue(count > 0, "Product query returned " + count + " Products");
}
});
}
public async Task Products_InlineCount()
{
var entityManager = new EntityManager(_serviceName);
// All instances of Product
var query = new EntityQuery <Product>().Where(i => i.ProductName.StartsWith("A")).InlineCount();
// Handle async Task results explicitly
await entityManager.ExecuteQuery(query).ContinueWith(task =>
{
if (task.IsFaulted)
{
var message = TestFns.FormatException(task.Exception);
Assert.Fail(message);
}
else
{
var count = ((IHasInlineCount)task.Result).InlineCount;
Assert.IsTrue(count == 2, "There are " + count + " products with name starting with 'A'");
}
});
}
public async Task Products_Slice()
{
var entityManager = new EntityManager(_serviceName);
// All instances of Product
var query = new EntityQuery <Product>().OrderBy(i => i.ProductName).Skip(10).Take(20);
// Handle async Task results explicitly
await entityManager.ExecuteQuery(query).ContinueWith(task =>
{
if (task.IsFaulted)
{
var message = TestFns.FormatException(task.Exception);
Assert.Fail(message);
}
else
{
var count = task.Result.Count();
Assert.IsTrue(count == 20, "Product query returned " + count + " Products");
}
});
}
public async Task SaveDeletedEntity()
{
var entityManager = await TestFns.NewEm(_serviceName);
// Create a new customer
var product = new Product {
ID = Guid.NewGuid()
};
entityManager.AddEntity(product);
product.ProductName = "Test3A " + DateTime.Now.ToString();
Assert.IsTrue(product.EntityAspect.EntityState == EntityState.Added, "State of new entity should be Added");
try
{
var saveResult = await entityManager.SaveChanges();
var savedEntity = saveResult.Entities[0];
Assert.IsTrue(savedEntity is Product && savedEntity == product, "After save, added entity should still exist");
Assert.IsTrue(product.EntityAspect.EntityState == EntityState.Unchanged, "State of saved entity should be Unchanged");
// Delete customer
product.EntityAspect.Delete();
Assert.IsTrue(product.EntityAspect.EntityState == EntityState.Deleted,
"After delete, entity state should be deleted, not " + product.EntityAspect.EntityState.ToString());
saveResult = await entityManager.SaveChanges();
savedEntity = saveResult.Entities[0];
Assert.IsTrue(savedEntity.EntityAspect.EntityState == EntityState.Detached,
"After save of deleted entity, entity state should be detached, not " + savedEntity.EntityAspect.EntityState.ToString());
}
catch (Exception e)
{
var message = string.Format("Save of deleted customer {0} should have succeeded; Received {1}: {2}",
product.ProductName, e.GetType().Name, e.Message);
Assert.Fail(message);
}
}
