[Solved] Given the code below, what will be the output when the test runs?let(:count) { 0 } before { @count = count + 1 } it 'increments count' do expect(@count).to eq(1) end | Ruby

Ruby - Testing with RSpec and Minitest

Given the code below, what will be the output when the test runs?

let(:count) { 0 }
before { @count = count + 1 }
it 'increments count' do
  expect(@count).to eq(1)
end

ATest passes because @count equals 1

BTest fails because @count is nil

CTest fails because count is not defined

DTest fails because @count equals 0

Step-by-Step Solution

Solution:

Step 1: Evaluate let(:count)
count returns 0 when called.
Step 2: Analyze before hook
@count is set to count + 1, which is 0 + 1 = 1.
Step 3: Check test expectation
The test expects @count to equal 1, which matches the value set.
Final Answer:
Test passes because @count equals 1 -> Option A
Quick Check:
before sets @count = count + 1 = 1 [OK]

Quick Trick: let is lazy but before runs before test [OK]

Common Mistakes:

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