W4D4

Question 1

TDD

Answer 1

Test Driven Development

Question 2

Why do we test

Answer 2

Check that everything is working. Increases flexibility by reducing fear that something might be broken in the future.

Naturally produces documentation for our code

Question 3

TDD Pyramid

Answer 3

Unit - Foundation, for specific methods. Classes are tested in isolation (use doubles)

Integration - Test how parts are working together, you need fewer

End 2 End - Tests the flow of the application from start to finish.

Question 4

Red > Green > Refactor

Answer 4

Write tests before the code, they should all fail.

Green Minimuum amount of code to pass the test

Refactor > clean up the code to make everything look better

Question 5

Demo

Answer 5

setup, structure, syntax

describe,

Question 6

RSPEC setup

Answer 6

mkdir project
cd project
bundle init
gems**
rspec -- init
--format documentaion
--color

create a lib folder
file.rb
in spec
file_spec.rb

Question 7

DESCRIBE Class

Answer 7

require ‘rspec’
require ‘class’

describe Class do

end

Question 8

DESCRIBE ‘readability string’

Answer 8

describe ‘#method_test’ do

end

Question 9

IT ‘readably test string”

Answer 9

it ‘expected execution’ do

end

Question 10

CONTEXT block

Answer 10

wrap a given it block when some context to help with readability

context ‘with valid arguments’ do

it ‘intantiates correctly’ do

end

end

Question 11

ALLOW

Answer 11

allow(:board).to receive(:vaild_pos?).and_return(false)

Question 12

allow

Answer 12

simulates behavior that you would have required for the test to be testable

Question 13

let(:) vs subject(:)

Answer 13

let signifies it is not the primary focus, subject is the focus

you can have multiple lets, but not multiple subjects