discourse/spec/services/wildcard_domain_checker_spec.rb

# frozen_string_literal: true

RSpec.describe WildcardDomainChecker do
  describe ".check_domain" do
    context "when domain is valid" do
      it "returns correct domain" do
        result1 =
          WildcardDomainChecker.check_domain(
            "*.discourse.org",
            "anything.is.possible.discourse.org",
          )
        expect(result1[0]).to eq("anything.is.possible.discourse.org")

        result2 = WildcardDomainChecker.check_domain("www.discourse.org", "www.discourse.org")
        expect(result2[0]).to eq("www.discourse.org")

        result3 = WildcardDomainChecker.check_domain("*", "hello.discourse.org")
        expect(result3[0]).to eq("hello.discourse.org")
      end
    end

    context "when domain is invalid" do
      it "doesn't return the domain" do
        result1 =
          WildcardDomainChecker.check_domain("*.discourse.org", "bad-domain.discourse.org.evil.com")
        expect(result1).to eq(nil)

        result2 =
          WildcardDomainChecker.check_domain("www.discourse.org", "www.discourse.org.evil.com")
        expect(result2).to eq(nil)

        result3 = WildcardDomainChecker.check_domain("www.discourse.org", "www.www.discourse.org")
        expect(result3).to eq(nil)

        result4 = WildcardDomainChecker.check_domain("www.*.discourse.org", "www.www.discourse.org")
        expect(result4).to eq(nil)

        result5 =
          WildcardDomainChecker.check_domain(
            "www.discourse.org",
            "www.discourse.org\nwww.discourse.org.evil.com",
          )
        expect(result5).to eq(nil)
      end
    end
  end
end