bank_account_spec.rb

require './bank_account'

describe BankAccount do
  it "is created with an opening balance and the name of the client" do
    account = BankAccount.new(500, "Sarah")
    expect(account).to be_a(BankAccount) #be_a specifies that it's a certain class
  end
  it "can report it's balance" do
    account = BankAccount.new(500, "Sarah")
    expect(account.balance).to eq(500) #eq checks that they're equal
  end
  it "can make deposits" do
    account = BankAccount.new(500, "Sarah")
    account.deposit(500)
    expect(account.balance).to eq(1000)
  end
  it "can make withdawls" do
    account = BankAccount.new(500, "Sarah")
    account.withdrawl(200)
    expect(account.balance).to eq(300)
  end
  it "can transfer funds to another bank account" do
    account1 = BankAccount.new(500, "Sarah")
    account2 = BankAccount.new(500, "Mark")
    account1.transfer(200, account2)
    expect(account1.balance).to eq(300)
    expect(account2.balance).to eq(700)
  end
  it "throws an error if minimum opening balance of 200 is not met" do
    expect {BankAccount.new(100, "Sarah")}.to raise_error(ArgumentError)
  end
  it "allows the user to change the minimum balance" do
    BankAccount.minimum_balance = 500
    expect{ BankAccount.new(300, "Sarah")}.to raise_error(ArgumentError)
    expect{ BankAccount.new(500, "Sarah")}.to_not raise_error(ArgumentError)
  end
  it "allows the user to add overdraft fees and to change it" do
    BankAccount.overdraft_fee = 25
    account = BankAccount.new(500, "Sarah")
    account.withdrawl(600)
    expect(account.balance).to eq(-125)
  end
  it "allows user to view transaction history" do
    account = BankAccount.new(500, "Sarah")
    account.withdrawl(600)
    expect(account.balance).to eq({new_account: 500, withdrawl: 600, overdraft: 25})
  end
end