Minitest vs RSpec in Ruby on Rails - Interactive Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a simple test case in Minitest.

Ruby on Rails

class CalculatorTest < [1]
  def test_addition
    assert_equal 4, 2 + 2
  end
end

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ARSpec::Core::ExampleGroup

BTest::Unit::TestCase

CActiveSupport::TestCase

DMinitest::Test

Attempts:

3 left

💡 Hint

Common Mistakes

Using RSpec class names in Minitest tests.

Confusing ActiveSupport::TestCase with Minitest::Test.

In Minitest, test classes inherit from Minitest::Test to define test cases.

2fill in blank

medium

Complete the code to write an example group in RSpec.

Ruby on Rails

RSpec.describe Calculator do
  it '[1]' do
    expect(2 + 2).to eq(4)
  end
end

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Aadds numbers correctly

Btest addition

Cshould add numbers

Dchecks addition

Attempts:

3 left

💡 Hint

Common Mistakes

Using imperative phrases like 'test addition' instead of descriptive behavior.

Not using a string inside the it block.

RSpec uses descriptive strings inside it blocks to explain the behavior being tested.

3fill in blank

hard

Fix the error in the Minitest assertion syntax.

Ruby on Rails

def test_subtraction
  [1] 2, 5 - 3
end

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Aassert_equal

Bshould

Cexpect

Dassert

Attempts:

3 left

💡 Hint

Common Mistakes

Using RSpec syntax like 'expect' in Minitest.

Using 'assert' without '_equal' for equality checks.

Minitest uses assert_equal(expected, actual) for equality checks.

4fill in blank

hard

Fill both blanks to complete the RSpec expectation syntax.

Ruby on Rails

expect([1]).to [2](5)

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Acalculator.add(2, 3)

Beq

Cbe

Dequal

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'be' matcher incorrectly for equality.

Putting the expected value inside expect().

In RSpec, expect(value).to eq(expected) checks if value equals expected.

5fill in blank

hard

Fill all three blanks to write a Minitest setup method and test.

Ruby on Rails

class UserTest < Minitest::Test
  def [1]
    @user = User.new(name: 'Alice')
  end

  def [2]
    assert_equal '[3]', @user.name
  end
end

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Asetup

Btest_name

CAlice

Dinitialize

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'initialize' instead of 'setup' for test preparation.

Not prefixing test methods with 'test_'.

Using wrong expected value in assertion.

The setup method runs before each test. Test methods start with test_. The assertion checks the user's name.