forum/spec/lib/email/email_spec.rb

# frozen_string_literal: true

require "email"

RSpec.describe Email do
  describe "is_valid?" do
    it "treats a nil as invalid" do
      expect(Email.is_valid?(nil)).to eq(false)
    end

    it "treats a good email as valid" do
      expect(Email.is_valid?("[email protected]")).to eq(true)
    end

    it "treats a bad email as invalid" do
      expect(Email.is_valid?("sam@sam")).to eq(false)
    end

    it "allows museum tld" do
      expect(Email.is_valid?("[email protected]")).to eq(true)
    end

    it "does not think a word is an email" do
      expect(Email.is_valid?("sam")).to eq(false)
    end
  end

  describe "downcase" do
    it "downcases local and host part" do
      expect(Email.downcase("[email protected]")).to eq("[email protected]")
      expect(Email.downcase("[email protected]")).to eq("[email protected]")
    end

    it "leaves invalid emails untouched" do
      expect(Email.downcase("SAM@GMAILCOM")).to eq("SAM@GMAILCOM")
      expect(Email.downcase("samGMAIL.COM")).to eq("samGMAIL.COM")
      expect(Email.downcase("sam@[email protected]")).to eq("sam@[email protected]")
    end
  end

  describe "obfuscate" do
    it "correctly obfuscates emails" do
      expect(Email.obfuscate("[email protected]")).to eq("*@*.com")
      expect(Email.obfuscate("[email protected]")).to eq("t***@t***.**.uk")
      expect(Email.obfuscate("[email protected]")).to eq("s****e@e*****e.com")
      expect(Email.obfuscate("[email protected]")).to eq("v*********n@e*****e.com")
      expect(Email.obfuscate("[email protected]")).to eq(
        "d********************************l@e*****e.com",
      )
      expect(Email.obfuscate("[email protected]")).to eq(
        "o*********************n@e*****e.com",
      )
      expect(Email.obfuscate("[email protected]")).to eq(
        "f********************n@e*****e.com",
      )
      expect(Email.obfuscate("[email protected]")).to eq(
        "u*******************g@e*****e.com",
      )
      expect(Email.obfuscate("[email protected]")).to eq("*@e*****e.com")
      expect(Email.obfuscate("[email protected]")).to eq(
        "e************d@s*************e.com",
      )
      expect(Email.obfuscate("[email protected]")).to eq("e*****e@*.example")
      expect(Email.obfuscate("[email protected]")).to eq(
        "m***************e@e*****e.org",
      )
      expect(Email.obfuscate("user%[email protected]")).to eq("u**************m@e*****e.org")
      expect(Email.obfuscate("[email protected]")).to eq("u***-@e*****e.org")
    end
  end
end