require "test_helper" class NewsMailerTest < ActionMailer::TestCase test "letter" do mail = NewsMailer.letter assert_equal "Letter", mail.subject assert_equal ["to@example.org"], mail.to assert_equal ["from@example.com"], mail.from assert_match "Hi", mail.body.encoded end test "subscribed" do mail = NewsMailer.subscribed assert_equal "Subscribed", mail.subject assert_equal ["to@example.org"], mail.to assert_equal ["from@example.com"], mail.from assert_match "Hi", mail.body.encoded end test "unsubscribed" do mail = NewsMailer.unsubscribed assert_equal "Unsubscribed", mail.subject assert_equal ["to@example.org"], mail.to assert_equal ["from@example.com"], mail.from assert_match "Hi", mail.body.encoded end end