school.rb

class School 
  attr_reader :name, :students
  def initialize(name)
    @name = name
    @students = []
  end

  def enroll(student)
    @students << student # "Jake"
  end 

  def search(searched_student)
    @students.each do |student|
      if searched_student == student
        return student
      end 
    end 
  end
end

school_spec.rb

require "school"

describe School do
  let(:school) { School.new('Beverly Hills High School') }

  it 'has a name' do
    expect(school.name).to eq('Beverly Hills High School')
  end

  it 'should start off with no students' do
    expect(school.students).to eq([])
  end

  it 'school should be able to enroll a new student' do
    school.enroll('Jake')
    expect(school.students).to eq(['Jake'])
  end 

  it 'school should be able to search for student by name' do 
    school.enroll('Jake')
    result = school.search('Jake')
    expect(result).to eq('Jake')
  end 
end