Ruby basic coding - Arrays, Hashes and enumerables

Here is the link for the instructions

https://cloudspace.idrsolutions.com:8181/HTML_Page_Extraction/output/69c5d1eb-d26c-4e50-8029-4bf0736b65d4/RubyBasics1/index.html?page=1

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here are the files

insert the codes where it says "your code here"

rubybasics1.rb

# Lab 1 # Part I def sum arr #YOUR CODE HERE end

# Part II def max_2_sum arr # YOUR CODE HERE end

# Part III def sum_to_n? arr, n # YOUR CODE HERE end

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here is the file which shows the data -- Do not write anything here

require 'rubybasics1.rb'

RSpec.configure do |config| config.filter_run_excluding :disabled => true end

describe 'Ruby Basics 1 Part I' do

describe "#sum" do it "should be defined" do expect { sum([1,3,4]) }.not_to raise_error end

it "returns correct sum [20 points]" , points: 20 do expect(sum([1,2,3,4,5])).to be_a_kind_of Fixnum expect(sum([1,2,3,4,5])).to eq(15) expect(sum([1,2,3,4,-5])).to eq(5) expect(sum([1,2,3,4,-5,5,-100])).to eq(-90) end

it "works on the empty array [10 points]" , points: 10 do expect { sum([]) }.not_to raise_error expect(sum([])).to be_zero end end end

describe 'Ruby Basics 1 Part II' do describe "#max_2_sum", :disabled => true do it "should be defined" do expect { max_2_sum([1,2,3]) }.not_to raise_error end it "returns the correct sum [7 points]" , points: 7 do expect(max_2_sum([1,2,3,4,5])).to be_a_kind_of Fixnum expect(max_2_sum([1,-2,-3,-4,-5])).to eq(-1) end it 'works even if 2 largest values are the same [3 points]' , points: 3 do expect(max_2_sum([1,2,3,3])).to eq(6) end it "returns zero if array is empty [10 points]" , points: 10 do expect(max_2_sum([])).to be_zero end it "returns value of the element if just one element [10 points]" , points: 10 do expect(max_2_sum([3])).to eq(3) end end end

describe 'Ruby Basics 1 Part III' do describe "#sum_to_n", :disabled => true do it "should be defined" do expect { sum_to_n?([1,2,3],4) }.not_to raise_error end it "returns true when any two elements sum to the second argument [30 points]" , points: 30 do expect(sum_to_n?([1,2,3,4,5], 5)).to be true # 2 + 3 = 5 expect(sum_to_n?([3,0,5], 5)).to be true # 0 + 5 = 5 expect(sum_to_n?([-1,-2,3,4,5,-8], -3)).to be true # handles negative sum expect(sum_to_n?([-1,-2,3,4,5,-8], 12)).to be false # 3 + 4 + 5 = 12 (not 3 elements) expect(sum_to_n?([-1,-2,3,4,6,-8], 12)).to be false # no two elements that sum end

it "returns false for any single element array [5 points]" , points: 5 do expect(sum_to_n?([0], 0)).to be false expect(sum_to_n?([1], 1)).to be false expect(sum_to_n?([-1], -1)).to be false expect(sum_to_n?([-3], 0)).to be false end it "returns false for an empty array [5 points]" , points: 5 do expect(sum_to_n?([], 0)).to be false expect(sum_to_n?([], 7)).to be false end end end

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Here are the quiz questions

1.) How many methods are there in the rubybasics1.rb file?

2.) How many describe blocks are in the RSpec definition file?

3.)

How many test cases are defined in the #sum collection?

How many test cases are defined in the #max_2_sum collection?

How many test cases are defined in the #sum_to_n collection?

4.)

Select ALL that apply. Which collections will be excluded when we run the rspec tests?

#sum

#max_2_sum

#sum_to_n

5.)

You can easily find the rspec tests that failed as the output lists both the line number and the file name.

True

False

6.) Upload a screenshot of your passing rspec tests for all methods up to and including the sum_to_n? method.