CareerCup

What would be an example of glass-box testing?
(ruby on rails)


Throwing random data at your application to see if it breaks

Testing a particular code path in the program

Automatically making small but syntactically legal changes to the program

Testing the result of a predetermined input to the program

What is the benefit of using factories over fixtures?
(ruby on rails)


Factories create full-featured objects, but fixtures do not

Factory objects persist across specs, while fixture objects do not

Factories keep tests independent, while fixtures may not

All objects from a certain factory are exactly the same, while objects from a fixture may vary

What is the main difference between BDD and TDD?
(ruby on rails)


BDD focuses on validation while TDD focuses on verification

BDD focuses on verification while TDD focuses on validation

BDD is better than TDD at testing methods independently

BDD generally uses mocks and stubs more than TDD

Which of the following statements are true regarding mocks in RSpec? Select all that apply.(ruby on rails)


Mocks are used to isolate tests from the database

Model mocks automatically have access to all existing methods of the model

Mocks can be created with default attribute values

Which of the following lists the kinds of tests in order of increasing code exercise complexity?(ruby on rails)



Integration tests, functional or module tests, unit tests

Unit tests, integration tests, functional or module tests

Unit tests, functional or module tests, integration tests

Functional or module tests, unit tests, integration tests

Your test randomly changes the comparison operators in your conditionals. This is which kind of testing?



Mutation test

Glass-box test

Black-box test

Fuzz test

Which of the following guarantees that you have exhaustively unit-tested a piece of code?



100% C0 (statement) coverage

100% C1 (branch) coverage

100% C2 (path) coverage

None of the above

For a service like TMDb with an HTTP-based RESTful API, a Ruby wrapper library such as the ruby-tmdb gem is necessary in order to call the service from a Ruby app.



True

False

RSpec's stub method can be used to override a method call on



an instance only

a class only

an instance or a class only

any Ruby object

Sally wants to create a dating website and decides to write an algorithm that takes a list of male and female users' preferences and returns the best matching of males with females. To test her algorithm, she manually calculates the best match. She then runs the algorithm and checks to see if the observed output matches with her manual calculation. What FIRST principle is clearly not being followed?



Fast

Independent

Repeatable

Self-checking

Timely

High coverage can always be achieved by writing a unit test for every method.



True

False