[Solved] What will be the output of this Ruby code using RSpec mocks? class User def name 'Alice' end end user = User.new allow(user).to receive(:name).and_return('Bob') puts user.name | Ruby

Ruby - Testing with RSpec and Minitest

What will be the output of this Ruby code using RSpec mocks?

class User
  def name
    'Alice'
  end
end

user = User.new
allow(user).to receive(:name).and_return('Bob')
puts user.name

AAlice

BBob

Cnil

DError

Step-by-Step Solution

Solution:

Step 1: Understand stubbing effect
The allow(user).to receive(:name).and_return('Bob') replaces name method to return 'Bob'.
Step 2: Determine output of puts user.name
Since the stub overrides original method, it prints 'Bob'.
Final Answer:
Bob -> Option B
Quick Check:
Stubbed method output = Bob [OK]

Quick Trick: Stubbed methods return stub value, not original [OK]

Common Mistakes:

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