activesupport/test/secure_compare_rotator_test.rb


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# frozen_string_literal: true

require "abstract_unit"
require "active_support/secure_compare_rotator"

class SecureCompareRotatorTest < ActiveSupport::TestCase
  test "#secure_compare! works correctly after rotation" do
    wrapper = ActiveSupport::SecureCompareRotator.new("old_secret")
    wrapper.rotate("new_secret")

    assert_equal(true, wrapper.secure_compare!("new_secret"))
  end

  test "#secure_compare! works correctly after multiple rotation" do
    wrapper = ActiveSupport::SecureCompareRotator.new("old_secret")
    wrapper.rotate("new_secret")
    wrapper.rotate("another_secret")
    wrapper.rotate("and_another_one")

    assert_equal(true, wrapper.secure_compare!("and_another_one"))
  end

  test "#secure_compare! fails correctly when credential is not part of the rotation" do
    wrapper = ActiveSupport::SecureCompareRotator.new("old_secret")
    wrapper.rotate("new_secret")

    assert_raises(ActiveSupport::SecureCompareRotator::InvalidMatch) do
      wrapper.secure_compare!("different_secret")
    end
  end

  test "#secure_compare! calls the on_rotation proc" do
    wrapper = ActiveSupport::SecureCompareRotator.new("old_secret")
    wrapper.rotate("new_secret")
    wrapper.rotate("another_secret")
    wrapper.rotate("and_another_one")

    @witness = nil

    assert_changes(:@witness, from: nil, to: true) do
      assert_equal(true, wrapper.secure_compare!("and_another_one", on_rotation: -> { @witness = true }))
    end
  end

  test "#secure_compare! calls the on_rotation proc that given in constructor" do
    @witness = nil

    wrapper = ActiveSupport::SecureCompareRotator.new("old_secret", on_rotation: -> { @witness = true })
    wrapper.rotate("new_secret")
    wrapper.rotate("another_secret")
    wrapper.rotate("and_another_one")

    assert_changes(:@witness, from: nil, to: true) do
      assert_equal(true, wrapper.secure_compare!("and_another_one"))
    end
  end
end