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rollout_spec.rb
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rollout_spec.rb
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require File.expand_path(File.dirname(__FILE__) + '/spec_helper')
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
@rollout.should be_active(:chat, stub(:id => 5))
end
it "is not active for users for which the block evaluates to false" do
@rollout.should_not be_active(:chat, stub(: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)
@rollout.should_not be_active(:chat, stub(: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
@rollout.should be_active(:chat, stub(: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
@rollout.should_not be_active(:chat, stub(:id => 10))
end
it "leaves the other groups active" do
@rollout.get(:chat).groups.should == [:fivesonly]
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, stub(:id => 51))
@rollout.activate_percentage(:chat, 100)
@rollout.activate(:chat)
@rollout.deactivate(:chat)
end
it "removes all of the groups" do
@rollout.should_not be_active(:chat, stub(:id => 0))
end
it "removes all of the users" do
@rollout.should_not be_active(:chat, stub(:id => 51))
end
it "removes the percentage" do
@rollout.should_not be_active(:chat, stub(:id => 24))
end
it "removes globally" do
@rollout.should_not be_active(:chat)
end
end
describe "activating a specific user" do
before do
@rollout.activate_user(:chat, stub(:id => 42))
end
it "is active for that user" do
@rollout.should be_active(:chat, stub(:id => 42))
end
it "remains inactive for other users" do
@rollout.should_not be_active(:chat, stub(:id => 24))
end
end
describe "activating a specific user with a string id" do
before do
@rollout.activate_user(:chat, stub(:id => 'user-72'))
end
it "is active for that user" do
@rollout.should be_active(:chat, stub(:id => 'user-72'))
end
it "remains inactive for other users" do
@rollout.should_not be_active(:chat, stub(:id => 'user-12'))
end
end
describe "deactivating a specific user" do
before do
@rollout.activate_user(:chat, stub(:id => 42))
@rollout.activate_user(:chat, stub(:id => 4242))
@rollout.activate_user(:chat, stub(:id => 24))
@rollout.deactivate_user(:chat, stub(:id => 42))
@rollout.deactivate_user(:chat, stub(:id => "4242"))
end
it "that user should no longer be active" do
@rollout.should_not be_active(:chat, stub(:id => 42))
end
it "remains active for other active users" do
@rollout.get(:chat).users.should == %w(24)
end
end
describe "activating a feature globally" do
before do
@rollout.activate(:chat)
end
it "activates the feature" do
@rollout.should 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
(1..120).select { |id| @rollout.active?(:chat, stub(:id => id)) }.length.should 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
(1..200).select { |id| @rollout.active?(:chat, stub(:id => id)) }.length.should 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
(1..100).select { |id| @rollout.active?(:chat, stub(:id => id)) }.length.should be_within(2).of(5)
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
@rollout.should be_active(:chat, stub(:id => 5))
end
it "is not active for users for which the block evaluates to false" do
@rollout.should_not be_active(:chat, stub(: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
@rollout.should_not be_active(:chat, stub(:id => 24))
end
end
describe "deactivating the feature globally" do
before do
@rollout.activate(:chat)
@rollout.deactivate(:chat)
end
it "becomes inactivate" do
@rollout.should_not be_active(:chat)
end
end
describe "keeps a list of features" do
it "saves the feature" do
@rollout.activate(:chat)
@rollout.features.should be_include(:chat)
end
it "does not contain doubles" do
@rollout.activate(:chat)
@rollout.activate(:chat)
@rollout.features.size.should == 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, stub(:id => 42))
end
it "returns the feature object" do
feature = @rollout.get(:chat)
feature.groups.should == [:caretakers, :greeters]
feature.percentage.should == 10
feature.users.should == %w(42)
feature.to_hash.should == {
:groups => [:caretakers, :greeters],
:percentage => 10,
:users => %w(42)
}
feature = @rollout.get(:signup)
feature.groups.should be_empty
feature.users.should be_empty
feature.percentage.should == 100
end
end
describe "migration mode" do
before do
@legacy = Rollout::Legacy.new(@redis)
@legacy.activate_percentage(:chat, 12)
@legacy.activate_user(:chat, stub(:id => 42))
@legacy.activate_user(:chat, stub(: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
@rollout.get(:chat).to_hash.should == {
:percentage => 12,
:users => %w(24 42),
:groups => [:dope_people]
}
@legacy.deactivate_all(:chat)
@rollout.get(:chat).to_hash.should == {
:percentage => 12,
:users => %w(24 42),
:groups => [:dope_people]
}
@redis.get("feature:chat").should_not be_nil
end
end
end