discourse/spec/lib/validators/string_setting_validator_spec.rb

# frozen_string_literal: true

RSpec.describe StringSettingValidator do
  describe "#valid_value?" do
    shared_examples "for all StringSettingValidator opts" do
      it "returns true for blank values" do
        expect(validator.valid_value?("")).to eq(true)
        expect(validator.valid_value?(nil)).to eq(true)
      end
    end

    context "with a regex" do
      subject(:validator) { described_class.new(regex: "bacon") }

      include_examples "for all StringSettingValidator opts"

      it "returns true if value matches the regex" do
        expect(validator.valid_value?("The bacon is delicious")).to eq(true)
      end

      it "returns false if the value doesn't match the regex" do
        expect(validator.valid_value?("The vegetables are delicious")).to eq(false)
      end

      it "test some other regexes" do
        v = described_class.new(regex: "^(chocolate|banana)$")
        expect(v.valid_value?("chocolate")).to eq(true)
        expect(v.valid_value?("chocolates")).to eq(false)

        v = described_class.new(regex: '^[\w]+$')
        expect(v.valid_value?("the_file")).to eq(true)
        expect(v.valid_value?("the_file.bat")).to eq(false)
      end
    end

    context "with min" do
      subject(:validator) { described_class.new(min: 2) }

      include_examples "for all StringSettingValidator opts"

      it "returns true if length is ok" do
        expect(validator.valid_value?("ok")).to eq(true)
        expect(validator.valid_value?("yep long enough")).to eq(true)
      end

      it "returns false if too short" do
        expect(validator.valid_value?("x")).to eq(false)
      end
    end

    context "with max" do
      subject(:validator) { described_class.new(max: 5) }

      include_examples "for all StringSettingValidator opts"

      it "returns true if length is ok" do
        expect(validator.valid_value?("Z")).to eq(true)
        expect(validator.valid_value?("abcde")).to eq(true)
      end

      it "returns false if too long" do
        expect(validator.valid_value?("banana")).to eq(false)
      end
    end

    context "with combinations of options" do
      it "min and regex" do
        v = described_class.new(regex: '^[\w]+$', min: 3)
        expect(v.valid_value?("chocolate")).to eq(true)
        expect(v.valid_value?("hi")).to eq(false)
        expect(v.valid_value?("game.exe")).to eq(false)
      end

      it "max and regex" do
        v = described_class.new(regex: '^[\w]+$', max: 5)
        expect(v.valid_value?("chocolate")).to eq(false)
        expect(v.valid_value?("a_b_c")).to eq(true)
        expect(v.valid_value?("a b c")).to eq(false)
      end

      it "min and max" do
        v = described_class.new(min: 3, max: 5)
        expect(v.valid_value?("chocolate")).to eq(false)
        expect(v.valid_value?("a")).to eq(false)
        expect(v.valid_value?("a b c")).to eq(true)
        expect(v.valid_value?("a b")).to eq(true)
      end

      it "min, max, and regex" do
        v = described_class.new(min: 3, max: 12, regex: "bacon")
        expect(v.valid_value?("go bacon!")).to eq(true)
        expect(v.valid_value?("sprinkle bacon on your cereal")).to eq(false)
        expect(v.valid_value?("ba")).to eq(false)
      end
    end
  end
end