discourse/spec/models/screened_url_spec.rb

# frozen_string_literal: true

RSpec.describe ScreenedUrl do
  let(:url) { "http://shopppping.com/bad/drugz" }
  let(:domain) { "shopppping.com" }

  let(:valid_params) { { url: url, domain: domain } }

  describe "new record" do
    it "sets a default action_type" do
      expect(described_class.create(valid_params).action_type).to eq(
        described_class.actions[:do_nothing],
      )
    end

    it "last_match_at is null" do
      expect(described_class.create(valid_params).last_match_at).to eq(nil)
    end

    it "normalizes the url and domain" do
      record = described_class.new(valid_params)
      record.expects(:normalize).once
      record.valid?
    end
  end

  describe "normalize" do
    subject(:normalized) do
      record.normalize
      record
    end

    let(:record) { described_class.new(@params) }

    %w[http:// HTTP:// https:// HTTPS://].each do |prefix|
      it "strips #{prefix}" do
        @params = valid_params.merge(url: url.gsub("http://", prefix))
        expect(normalized.url).to eq(url.gsub("http://", ""))
      end
    end

    it "strips trailing slash" do
      @params = valid_params.merge(url: "silverbullet.in/")
      expect(normalized.url).to eq("silverbullet.in")
    end

    it "strips trailing slashes" do
      @params = valid_params.merge(url: "silverbullet.in/buy///")
      expect(normalized.url).to eq("silverbullet.in/buy")
    end

    it "downcases domains" do
      record1 =
        described_class.new(
          valid_params.merge(domain: "DuB30.com", url: "DuB30.com/Gems/Gems-of-Power"),
        )
      record1.normalize
      expect(record1.domain).to eq("dub30.com")
      expect(record1.url).to eq("dub30.com/Gems/Gems-of-Power")
      expect(record1).to be_valid

      record2 = described_class.new(valid_params.merge(domain: "DuB30.com", url: "DuB30.com"))
      record2.normalize
      expect(record2.domain).to eq("dub30.com")
      expect(record2.url).to eq("dub30.com")
      expect(record2).to be_valid
    end

    it "strips www. from domains" do
      record1 =
        described_class.new(
          valid_params.merge(domain: "www.DuB30.com", url: "www.DuB30.com/Gems/Gems-of-Power"),
        )
      record1.normalize
      expect(record1.domain).to eq("dub30.com")

      record2 =
        described_class.new(
          valid_params.merge(domain: "WWW.DuB30.cOM", url: "WWW.DuB30.com/Gems/Gems-of-Power"),
        )
      record2.normalize
      expect(record2.domain).to eq("dub30.com")

      record3 =
        described_class.new(
          valid_params.merge(
            domain: "www.trolls.spammers.com",
            url: "WWW.DuB30.com/Gems/Gems-of-Power",
          ),
        )
      record3.normalize
      expect(record3.domain).to eq("trolls.spammers.com")
    end

    it "doesn't modify the url argument" do
      expect { described_class.new(valid_params).normalize }.to_not change { valid_params[:url] }
    end

    it "doesn't modify the domain argument" do
      params = valid_params.merge(domain: domain.upcase)
      expect { described_class.new(params).normalize }.to_not change { params[:domain] }
    end
  end

  describe "find_match" do
    it "returns nil when there is no match" do
      expect(described_class.find_match("http://spamspot.com/buy/it")).to eq(nil)
    end

    it "returns the record when there is an exact match" do
      match = described_class.create(valid_params)
      expect(described_class.find_match(valid_params[:url])).to eq(match)
    end

    it "ignores case of the domain" do
      match = described_class.create(valid_params.merge(url: "spamexchange.com/Good/Things"))
      expect(described_class.find_match("http://SPAMExchange.com/Good/Things")).to eq(match)
    end
  end

  describe "#watch" do
    context "when url is not being blocked" do
      it "creates a new record with default action of :do_nothing" do
        record = described_class.watch(url, domain)
        expect(record).not_to be_new_record
        expect(record.action_type).to eq(described_class.actions[:do_nothing])
      end

      it "lets action_type be overridden" do
        record = described_class.watch(url, domain, action_type: described_class.actions[:block])
        expect(record).not_to be_new_record
        expect(record.action_type).to eq(described_class.actions[:block])
      end
    end

    context "when url is already being blocked" do
      let!(:existing) { Fabricate(:screened_url, url: url, domain: domain) }

      it "doesn't create a new record" do
        expect { described_class.watch(url, domain) }.to_not change { described_class.count }
      end

      it "returns the existing record" do
        expect(described_class.watch(url, domain)).to eq(existing)
      end
    end
  end
end