Ruby issue using Object.send(:remove_const, 'MyClass') - ruby

Question

I want to "reinitialize" my User class, so i have a fresh state in each of my RSpec examples. I tried calling remove_const:
before(:each) do
Object.send(:remove_const, 'User')
load 'user.rb'
end
describe 'initializer' do
it 'creates an user' do
user = User.new("jules", "jules#gg.k")
expect(user.class).to eq(User)
end
it 'saves #email as instance variable' do
email = "jules#gg.com"
user = User.new("jules", email)
expect(user.email).to eq(email)
end
# ...
end
but it returns:
NameError: constant Object::User not defined
My User class looks like this:
class User
attr_accessor :name, :email
##user_list = []
##user_count = 0
def self.user_count
##user_count
end
def self.all
##user_list
end
def initialize(name, email)
#email = email
#name = name
##user_count += 1
##user_list << self
end
end

Answer 1

I see two options:
only remove the constant if it is actually defined:
if Object.const_defined?(:User)
Object.send(:remove_const, :User)
load 'user.rb' # <- you may have to adjust the path
end
add a class method to User to clear your in-memory user "database":
class User
def self.clear
##user_list = []
##user_count = 0
end
end
and call that instead:
before(:each) do
User.clear
end
I'd go with option #2.

Answer 2

require_relative '../lib/user'
describe User do
before(:each) do
Object.send(:remove_const, 'User')
load 'user'
end
describe 'initializer' do
it 'creates an user' do
user = User.new("jules", "jules#gg.k")
expect(user.class).to eq(User)
end
it 'saves #email as instance variable' do
email = "jules#gg.com"
user = User.new("jules", email)
expect(user.email).to eq(email)
end
it 'adds one to the ##user_count global variable' do
count = User.user_count
user = User.new("jules", "email#email.email")
expect(User.user_count).to eq(count+1)
end
end
describe 'classe method' do
describe 'all' do
it 'should return a list of names of all users' do
user1 = User.new("jacques", "jacky#chan.fr")
user2 = User.new("phil", "ph#il.ipe")
expect(User.all.map! {|k| k.name}).to eq(["jacques", "phil"])
end
end
describe 'find_by_email' do
it 'should return return a name if user exists and nil otherwise' do
user1 = User.new("jacques", "jacky#chan.fr")
user2 = User.new("phil", "ph#il.ipe")
expect(User.find_by_email("jacky#chan.fr")).to eq("jacques")
end
end
end
end