How do I use assert in Ruby for testing?

How do I use assert in Ruby for testing?

In Ruby, you can use the assert method from the Test::Unit framework to verify conditions in your tests. For example, you can write assert true to check if a condition is true.

Can you show me a simple example of using assert?

Sure! Here's a basic example:

require 'test/unit'

class MyTest < Test::Unit::TestCase
  def test_example
    assert_equal(4, 2 + 2)
  end
end

This test checks if 2 + 2 equals 4.

What if the assertion fails?

If the assertion fails, the test will fail, and you'll see an error message indicating what went wrong. For example, if you assert assert_equal(5, 2 + 2), it will show that the expected value was 5, but the actual value was 4.

Are there other assertion methods I can use?

Yes, Ruby's Test::Unit provides various assertion methods like assert_not_nil, assert_in_delta, and assert_match to cover different testing scenarios.