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rollout_spec.rb
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rollout_spec.rb
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require "spec_helper"
RSpec.describe "Rollout" do
before do
@redis = Redis.new
@rollout = Rollout.new(@redis)
end
describe "when a group is activated" do
before do
@rollout.define_group(:fivesonly) { |user| user.id == 5 }
@rollout.activate_group(:chat, :fivesonly)
end
it "the feature is active for users for which the block evaluates to true" do
expect(@rollout).to be_active(:chat, double(id: 5))
end
it "is not active for users for which the block evaluates to false" do
expect(@rollout).not_to be_active(:chat, double(id: 1))
end
it "is not active if a group is found in Redis but not defined in Rollout" do
@rollout.activate_group(:chat, :fake)
expect(@rollout).not_to be_active(:chat, double(id: 1))
end
end
describe "the default all group" do
before do
@rollout.activate_group(:chat, :all)
end
it "evaluates to true no matter what" do
expect(@rollout).to be_active(:chat, double(id: 0))
end
end
describe "deactivating a group" do
before do
@rollout.define_group(:fivesonly) { |user| user.id == 5 }
@rollout.activate_group(:chat, :all)
@rollout.activate_group(:chat, :some)
@rollout.activate_group(:chat, :fivesonly)
@rollout.deactivate_group(:chat, :all)
@rollout.deactivate_group(:chat, "some")
end
it "deactivates the rules for that group" do
expect(@rollout).not_to be_active(:chat, double(id: 10))
end
it "leaves the other groups active" do
expect(@rollout.get(:chat).groups).to eq [:fivesonly].to_set
end
end
describe "deactivating a feature completely" do
before do
@rollout.define_group(:fivesonly) { |user| user.id == 5 }
@rollout.activate_group(:chat, :all)
@rollout.activate_group(:chat, :fivesonly)
@rollout.activate_user(:chat, double(id: 51))
@rollout.activate_percentage(:chat, 100)
@rollout.activate(:chat)
@rollout.deactivate(:chat)
end
it "removes all of the groups" do
expect(@rollout).not_to be_active(:chat, double(id: 0))
end
it "removes all of the users" do
expect(@rollout).not_to be_active(:chat, double(id: 51))
end
it "removes the percentage" do
expect(@rollout).not_to be_active(:chat, double(id: 24))
end
it "removes globally" do
expect(@rollout).not_to be_active(:chat)
end
end
describe "activating a specific user" do
before do
@rollout.activate_user(:chat, double(id: 42))
end
it "is active for that user" do
expect(@rollout).to be_active(:chat, double(id: 42))
end
it "remains inactive for other users" do
expect(@rollout).not_to be_active(:chat, double(id: 24))
end
end
describe "activating a specific user by ID" do
before do
@rollout.activate_user(:chat, 42)
end
it "is active for that user" do
expect(@rollout).to be_active(:chat, double(id: 42))
end
it "remains inactive for other users" do
expect(@rollout).not_to be_active(:chat, double(id: 24))
end
end
describe "activating a specific user with a string id" do
before do
@rollout.activate_user(:chat, double(id: "user-72"))
end
it "is active for that user" do
expect(@rollout).to be_active(:chat, double(id: "user-72"))
end
it "remains inactive for other users" do
expect(@rollout).not_to be_active(:chat, double(id: "user-12"))
end
end
describe "activating a group of users" do
context "specified by user objects" do
let(:users) { [double(id: 1), double(id: 2), double(id: 3)] }
before { @rollout.activate_users(:chat, users) }
it "is active for the given users" do
users.each { |user| expect(@rollout).to be_active(:chat, user) }
end
it "remains inactive for other users" do
expect(@rollout).not_to be_active(:chat, double(id: 4))
end
end
context "specified by user ids" do
let(:users) { [1, 2, 3] }
before { @rollout.activate_users(:chat, users) }
it "is active for the given users" do
users.each { |user| expect(@rollout).to be_active(:chat, user) }
end
it "remains inactive for other users" do
expect(@rollout).not_to be_active(:chat, 4)
end
end
end
describe "deactivating a specific user" do
before do
@rollout.activate_user(:chat, double(id: 42))
@rollout.activate_user(:chat, double(id: 4242))
@rollout.activate_user(:chat, double(id: 24))
@rollout.deactivate_user(:chat, double(id: 42))
@rollout.deactivate_user(:chat, double(id: "4242"))
end
it "that user should no longer be active" do
expect(@rollout).not_to be_active(:chat, double(id: 42))
end
it "remains active for other active users" do
expect(@rollout.get(:chat).users).to eq %w(24).to_set
end
end
describe "deactivating a group of users" do
context "specified by user objects" do
let(:active_users) { [double(id: 1), double(id: 2)] }
let(:inactive_users) { [double(id: 3), double(id: 4)] }
before do
@rollout.activate_users(:chat, active_users + inactive_users)
@rollout.deactivate_users(:chat, inactive_users)
end
it "is active for the active users" do
active_users.each { |user| expect(@rollout).to be_active(:chat, user) }
end
it "is not active for inactive users" do
inactive_users.each { |user| expect(@rollout).not_to be_active(:chat, user) }
end
end
context "specified by user ids" do
let(:active_users) { [1, 2] }
let(:inactive_users) { [3, 4] }
before do
@rollout.activate_users(:chat, active_users + inactive_users)
@rollout.deactivate_users(:chat, inactive_users)
end
it "is active for the active users" do
active_users.each { |user| expect(@rollout).to be_active(:chat, user) }
end
it "is not active for inactive users" do
inactive_users.each { |user| expect(@rollout).not_to be_active(:chat, user) }
end
end
end
describe "activating a feature globally" do
before do
@rollout.activate(:chat)
end
it "activates the feature" do
expect(@rollout).to be_active(:chat)
end
end
describe "activating a feature for a percentage of users" do
before do
@rollout.activate_percentage(:chat, 20)
end
it "activates the feature for that percentage of the users" do
expect((1..120).select { |id| @rollout.active?(:chat, double(id: id)) }.length).to be_within(1).of(20)
end
end
describe "activating a feature for a percentage of users" do
before do
@rollout.activate_percentage(:chat, 20)
end
it "activates the feature for that percentage of the users" do
expect((1..200).select { |id| @rollout.active?(:chat, double(id: id)) }.length).to be_within(5).of(40)
end
end
describe "activating a feature for a percentage of users" do
before do
@rollout.activate_percentage(:chat, 5)
end
it "activates the feature for that percentage of the users" do
expect((1..100).select { |id| @rollout.active?(:chat, double(id: id)) }.length).to be_within(2).of(5)
end
end
describe "activating a feature for a percentage of users" do
before do
@rollout.activate_percentage(:chat, 20)
@rollout.activate_percentage(:beta, 20)
@options = @rollout.instance_variable_get("@options")
end
it "activates the feature for a random set of users when opt is set" do
@options[:randomize_percentage] = true
chat_users = (1..100).select { |id| @rollout.active?(:chat, double(id: id)) }
beta_users = (1..100).select { |id| @rollout.active?(:beta, double(id: id)) }
expect(chat_users).not_to eq beta_users
end
it "activates the feature for the same set of users when opt is not set" do
@options[:randomize_percentage] = false
chat_users = (1..100).select { |id| @rollout.active?(:chat, double(id: id)) }
beta_users = (1..100).select { |id| @rollout.active?(:beta, double(id: id)) }
expect(chat_users).to eq beta_users
end
end
describe "activating a feature for a group as a string" do
before do
@rollout.define_group(:admins) { |user| user.id == 5 }
@rollout.activate_group(:chat, "admins")
end
it "the feature is active for users for which the block evaluates to true" do
expect(@rollout).to be_active(:chat, double(id: 5))
end
it "is not active for users for which the block evaluates to false" do
expect(@rollout).not_to be_active(:chat, double(id: 1))
end
end
describe "deactivating the percentage of users" do
before do
@rollout.activate_percentage(:chat, 100)
@rollout.deactivate_percentage(:chat)
end
it "becomes inactivate for all users" do
expect(@rollout).not_to be_active(:chat, double(id: 24))
end
end
describe "deactivating the feature globally" do
before do
@rollout.activate(:chat)
@rollout.deactivate(:chat)
end
it "becomes inactivate" do
expect(@rollout).not_to be_active(:chat)
end
end
describe "setting a feature on" do
before do
@rollout.set(:chat, true)
end
it "becomes activated" do
expect(@rollout).to be_active(:chat)
end
end
describe "setting a feature off" do
before do
@rollout.set(:chat, false)
end
it "becomes activated" do
expect(@rollout).not_to be_active(:chat)
end
end
describe "deleting a feature" do
before do
@rollout.set(:chat, true)
end
it "should be removed from features list" do
expect(@rollout.features.size).to eq 1
@rollout.delete(:chat)
expect(@rollout.features.size).to eq 0
end
it "should have metadata cleared" do
expect(@rollout.get(:chat).percentage).to eq 100
@rollout.delete(:chat)
expect(@rollout.get(:chat).percentage).to eq 0
end
end
describe "keeps a list of features" do
it "saves the feature" do
@rollout.activate(:chat)
expect(@rollout.features).to be_include(:chat)
end
it "does not contain doubles" do
@rollout.activate(:chat)
@rollout.activate(:chat)
expect(@rollout.features.size).to eq(1)
end
it "does not contain doubles when using string" do
@rollout.activate(:chat)
@rollout.activate("chat")
expect(@rollout.features.size).to eq(1)
end
end
describe "#get" do
before do
@rollout.activate_percentage(:chat, 10)
@rollout.activate_group(:chat, :caretakers)
@rollout.activate_group(:chat, :greeters)
@rollout.activate(:signup)
@rollout.activate_user(:chat, double(id: 42))
end
it "returns the feature object" do
feature = @rollout.get(:chat)
expect(feature.groups).to eq [:caretakers, :greeters].to_set
expect(feature.percentage).to eq 10
expect(feature.users).to eq %w(42).to_set
expect(feature.to_hash).to eq(
groups: [:caretakers, :greeters].to_set,
percentage: 10,
users: %w(42).to_set
)
feature = @rollout.get(:signup)
expect(feature.groups).to be_empty
expect(feature.users).to be_empty
expect(feature.percentage).to eq(100)
end
end
describe "#clear" do
let(:features) { %w(signup beta alpha gm) }
before do
features.each { |f| @rollout.activate(f) }
@rollout.clear!
end
it "each feature is cleared" do
features.each do |feature|
expect(@rollout.get(feature).to_hash).to eq(
percentage: 0,
users: Set.new,
groups: Set.new
)
end
end
it "removes all features" do
expect(@rollout.features).to be_empty
end
end
describe "migration mode" do
before do
@legacy = Rollout::Legacy.new(@redis)
@legacy.activate_percentage(:chat, 12)
@legacy.activate_user(:chat, double(id: 42))
@legacy.activate_user(:chat, double(id: 24))
@legacy.activate_group(:chat, :dope_people)
@rollout = Rollout.new(@redis, migrate: true)
end
it "imports the settings from the legacy rollout once" do
expect(@rollout.get(:chat).to_hash).to eq({
percentage: 12,
users: %w(24 42),
groups: [:dope_people]
})
@legacy.deactivate_all(:chat)
expect(@rollout.get(:chat).to_hash).to eq({
percentage: 12,
users: %w(24 42).to_set,
groups: [:dope_people].to_set
})
expect(@redis.get("feature:chat")).not_to be_nil
end
it "imports settings that were globally activated" do
@legacy.activate_globally(:video_chat)
expect(@rollout.get(:video_chat).to_hash[:percentage]).to eq(100)
end
end
end
describe "Rollout::Feature" do
before do
@user = double("User", email: "[email protected]")
@feature = Rollout::Feature.new(:chat, nil, id_user_by: :email)
end
describe "#add_user" do
it "ids a user using id_user_by" do
@feature.add_user(@user)
expect(@user).to have_received :email
end
end
end