Test Mode

When writing tests, you may want to skip DNS checks to avoid external requests. Enable test mode to skip all DNS validations (MX and A record checks).

Enabling Test Mode

In spec_helper.rb or test_helper.rb

EmailDomainChecker.configure do |config|
  config.test_mode = true
end

In a before block

before do
  EmailDomainChecker::Config.test_mode = true
end

Behavior

When test mode is enabled, domain validation will always return true without making any DNS requests, allowing you to use dummy email addresses in your tests without external dependencies.

Example

# In spec_helper.rb
EmailDomainChecker.configure do |config|
  config.test_mode = true
end

# In your specs
it "validates email format" do
  expect(EmailDomainChecker.valid?("test@example.com")).to be true
  # Domain validation is skipped, but format validation still works
end