anagram_checker_spec.rb

require 'rspec'

class Anagram
end

def ac(a,b)
  if a.length == b.length
    if a.split('').sort == b.split('').sort
      true
    else
      false
    end
  else
    false
  end
end

describe Anagram do

  it 'checks if A and B is anagram' do
    a = "nama"
    b = "aman"
    expect(ac(a,b)).to eq true
  end

  it 'checks if A and C is anagram' do
    a = "nama"
    c = "hello"
    expect(ac(a,c)).to eq false
  end

  it 'checks if A and D is anagram' do
    a = "nama"
    d = "hell"
    expect(ac(a,d)).to eq false
  end

  it 'checks if A and E is anagram' do
    a = "namakuraja"
    e = "rajanamaku"
    expect(ac(a,e)).to eq true
  end

end

palindrome_spec.rb

require 'rspec'

class Palindrome
end

def palindrome?(word)
  if word == word.reverse
    true
  else
    false
  end
end

describe Palindrome do

  it 'checks if A is palindrome' do
    a = 'katak'
    expect(palindrome?(a)).to eq true
  end

  it 'checks if B is palindrome' do
    b = 'kaya'
    expect(palindrome?(b)).to eq false
  end

  it "should tell if  " do
    expect(palindrome?('detartrated')).to eql true
  end

end

sort_spec.rb

require "rspec"

class Sort
end


def sort arry
  sorted = []
  arry.each do |item|
    if sorted.empty?
      sorted << item
    else
      recursive_sort sorted, item
    end
  end
  sorted
end

def recursive_sort sorted, item
  if sorted[-1] < item
    sorted << item
  else
    prev = sorted[-1]
    sorted[-1] = item
    recursive_sort sorted, prev
  end
end

describe Sort do
  before do
    @array_1 = [1,3,2]
    @array_2 = [1,3,2,4]
    @array_3 = [3,1,5,7,9,13,21,70,111]
  end

  it "sort @array_1" do
    expect(sort(@array_1)).to eql [1,2,3]
  end

  it "sort @array_2" do
    expect(sort(@array_2)).to eql @array_2.sort
  end

  it "sort @array_3" do
    expect(sort(@array_3)).to eql @array_3.sort
  end
end