assert_includes_pattern.rb

require "minitest/autorun"

class TestFoo < Minitest::Test
  ArrayPattern = Struct.new(:pattern) do
    def ===(other)
      pattern.zip(other).all? { |(left, right)| left === right }
    end
  end

  def assert_includes_pattern(collection, pattern)
    array_pattern = ArrayPattern.new(pattern)
    assert(collection.any? { _1 in ^array_pattern }, <<~EOM)
        Expected #{collection.inspect} to contain #{pattern.inspect}
    EOM
  end

  def test_assertion
    users = [
      ["adam12", "#ruby"],
      ["ruby-bot", "#ruby"]
    ]

    assert_includes_pattern users, ["adam12", String]
    assert_includes_pattern users, ["adam12", "#libera"]
  end
end