104 lines
4.1 KiB
Ruby
104 lines
4.1 KiB
Ruby
require "rails_helper"
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RSpec.describe AbExperiment do
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let(:controller) { ApplicationController.new }
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let(:user) { double }
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describe "CURRENT_FEED_STRATEGY_EXPERIMENT" do
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subject(:variant) { described_class::CURRENT_FEED_STRATEGY_EXPERIMENT }
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it { is_expected.to be_a String }
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it "is a key in the FieldTest.config['experiments']" do
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expect(FieldTest.config["experiments"].keys).to include(variant)
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end
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end
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describe "validate field test experiment configuration" do
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it "only allow at most one active feed_strategy (e.g. an experiment without a winner)" do
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field_tests = Psych.load(Rails.root.join("config/field_test.yml").read, permitted_classes: [Date])
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active_field_tests = field_tests.fetch("experiments", {})
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.select { |key, values| key.start_with?("feed_strategy") && !values["winner"] }
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# We are only going to allow
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expect(active_field_tests.size).to be <= 1
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end
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end
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describe ".register_conversions_for" do
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it "forwards delegates to Converter.call" do
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allow(described_class::GoalConversionHandler).to receive(:call)
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described_class.register_conversions_for(user: user, goal: "goal")
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expect(described_class::GoalConversionHandler)
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.to have_received(:call).with(user: user, goal: "goal", experiments: FieldTest.config["experiments"])
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end
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end
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describe ".get_feed_variant_for" do
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before do
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allow(controller).to receive(:field_test).with(AbExperiment::CURRENT_FEED_STRATEGY_EXPERIMENT,
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participant: user).and_return("special")
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end
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it "returns an inquirable string" do
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result = described_class.get_feed_variant_for(user: user, controller: controller)
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expect(result).to eq("special")
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expect(result).to be_special
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end
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end
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describe ".get" do
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before do
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allow(controller).to receive(:field_test).with(AbExperiment::CURRENT_FEED_STRATEGY_EXPERIMENT,
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participant: user).and_return("special")
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end
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context "with :feed_strategy_round_3 experiment" do
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it "repurposes the :feed_strategy experiment" do
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expect(described_class.get(experiment: described_class::CURRENT_FEED_STRATEGY_EXPERIMENT,
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user: user,
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controller: controller,
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default_value: "default")).to eq("special")
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end
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end
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context "with :feed_strategy experiment" do
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before do
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allow(controller).to receive(:field_test).with(:feed_strategy, participant: user).and_return("special")
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end
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let(:experiment) { :feed_strategy }
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it "returns an inquirable string" do
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result = described_class.get(experiment: :feed_strategy,
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user: user,
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controller: controller,
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default_value: "default")
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expect(result).to eq("special")
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expect(result).to be_special
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end
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it "allows for an config override" do
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result = described_class.get(experiment: :feed_strategy,
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user: user,
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controller: controller,
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default_value: "special",
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config: { "AB_EXPERIMENT_FEED_STRATEGY" => "not_special" })
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expect(result).to eq("not_special")
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expect(result).to be_not_special
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end
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it "returns the default value when the FeatureFlipper is off" do
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allow(FeatureFlag).to receive(:accessible?).with(:ab_experiment_feed_strategy).and_return(false)
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result = described_class.get(experiment: :feed_strategy,
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user: user,
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controller: controller,
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default_value: "special",
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config: { "AB_EXPERIMENT_FEED_STRATEGY" => "not_special" })
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expect(result).to eq("special")
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expect(result).to be_special
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end
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end
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end
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end
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