Ninject

Question 0

What are some of the main advantages of dependency injection?

Answer 0

Helps to automate the injection of mock objects by using common mocking frameworks such as Moq or RhinoMock.

Question 1

What is dependency injection’s value proposition?

Answer 1

The vast majority of effort that is invested in software development happens after the initial release.

Question 2

How are ninject bindings used?

Answer 2

Ninject bindings are used to wire up abstract service types to concrete implementations.

Question 3

How do you tell ninject to use a particular class when it encounters a dependency on an interface?

Answer 3

Bindings are typically expressed via Ninject’s fluent interface:
Bind().To();

Question 4

What is one advantage of ninject’s fluent interface vs XML mappings, or other injection frameworks?

Answer 4

The fluent interface enables Intellisense and completion.

Question 5

Describe the constructor injection options that ninject will choose from.

Answer 5

1) It will look for a constructor with the [Inject] attribute first.
2) It will select the constructor with the most parameters that ninject can resolve.
3) It will select the parameterless constructor if there is one.

Question 6

Can Ninject inject dependencies into source code that has not been modified with the [Inject] attribute?

Answer 6

Yes, Ninject can use unaltered source code by looking for constructors it can use.