require 'test_helper'

class RulesEvaluatorTest < ActiveSupport::TestCase

  test "mark cron from subject" do
    email = email_from_eml_with_rules("cron_subject.eml")

    assert_predicate email, :cron?
  end

  test "mark cron from headers" do
    email = email_from_eml_with_rules("cron_headers.eml")

    assert_predicate email, :cron?
  end

  test "mark not cron" do
    email = email_from_eml_with_rules("cron_not.eml")

    assert_not_predicate email, :cron?
  end

  test "single ticket" do
    email = email_from_eml_with_rules("tickets_single.eml")

    expected = ["49123"]
    actual   = email.tickets

    assert_equal expected, actual
  end

  test "multiple tickets" do
    email = email_from_eml_with_rules("tickets_multiple.eml")

    expected = ["49123", "12345"]
    actual   = email.tickets

    assert_equal expected, actual
  end

  test "single client" do
    email = email_from_eml_with_rules("clients_single.eml")

    expected = ["quux"]
    actual   = email.clients

    assert_equal expected, actual
  end

  test "multiple clients" do
    email = email_from_eml_with_rules("clients_multiple.eml")

    expected = ["quux", "foobar"]
    actual   = email.clients

    assert_equal expected, actual
  end

  test "invalid subject type" do
    rules_evaluator = RulesEvaluator.new
    email = Email.new

    exception = assert_raise ArgumentError do
      rules_evaluator.evaluate(email, rule_sets(:invalid_subject))
    end
    assert_match(/^Unrecognized subject type/, exception.message)
  end

  test "invalid condition type" do
    rules_evaluator = RulesEvaluator.new
    email = Email.new

    exception = assert_raise ArgumentError do
      rules_evaluator.evaluate(email, rule_sets(:invalid_condition_type))
    end
    assert_match(/^Unrecognized condition type/, exception.message)
  end

  test "invalid operator" do
    rules_evaluator = RulesEvaluator.new
    email = Email.new

    exception = assert_raise ArgumentError do
      rules_evaluator.evaluate(email, rule_sets(:invalid_operator))
    end
    assert_match(/^Unrecognized operator/, exception.message)
  end

end