|
require 'spec_helper'
describe Agent do
it_behaves_like WorkingHelpers
describe ".bulk_check" do
before do
@weather_agent_count = Agents::WeatherAgent.where(:schedule => "midnight", :disabled => false).count
end
it "should run all Agents with the given schedule" do
mock(Agents::WeatherAgent).async_check(anything).times(@weather_agent_count)
Agents::WeatherAgent.bulk_check("midnight")
end
it "should skip disabled Agents" do
agents(:bob_weather_agent).update_attribute :disabled, true
mock(Agents::WeatherAgent).async_check(anything).times(@weather_agent_count - 1)
Agents::WeatherAgent.bulk_check("midnight")
end
end
describe ".run_schedule" do
before do
Agents::WeatherAgent.count.should > 0
Agents::WebsiteAgent.count.should > 0
end
it "runs agents with the given schedule" do
weather_agent_ids = [agents(:bob_weather_agent), agents(:jane_weather_agent)].map(&:id)
stub(Agents::WeatherAgent).async_check(anything) {|agent_id| weather_agent_ids.delete(agent_id) }
stub(Agents::WebsiteAgent).async_check(agents(:bob_website_agent).id)
Agent.run_schedule("midnight")
weather_agent_ids.should be_empty
end
it "groups agents by type" do
mock(Agents::WeatherAgent).bulk_check("midnight").once
mock(Agents::WebsiteAgent).bulk_check("midnight").once
Agent.run_schedule("midnight")
end
it "only runs agents with the given schedule" do
do_not_allow(Agents::WebsiteAgent).async_check
Agent.run_schedule("blah")
end
it "will not run the 'never' schedule" do
agents(:bob_weather_agent).update_attribute 'schedule', 'never'
do_not_allow(Agents::WebsiteAgent).async_check
Agent.run_schedule("never")
end
end
describe "credential" do
it "should return the value of the credential when credential is present" do
agents(:bob_weather_agent).credential("aws_secret").should == user_credentials(:bob_aws_secret).credential_value
end
it "should return nil when credential is not present" do
agents(:bob_weather_agent).credential("non_existing_credential").should == nil
end
it "should memoize the load" do
mock.any_instance_of(UserCredential).credential_value.twice { "foo" }
agents(:bob_weather_agent).credential("aws_secret").should == "foo"
agents(:bob_weather_agent).credential("aws_secret").should == "foo"
agents(:bob_weather_agent).reload
agents(:bob_weather_agent).credential("aws_secret").should == "foo"
agents(:bob_weather_agent).credential("aws_secret").should == "foo"
end
end
describe "changes to type" do
it "validates types" do
source = Agent.new
source.type = "Agents::WeatherAgent"
source.should have(0).errors_on(:type)
source.type = "Agents::WebsiteAgent"
source.should have(0).errors_on(:type)
source.type = "Agents::Fake"
source.should have(1).error_on(:type)
end
it "disallows changes to type once a record has been saved" do
source = agents(:bob_website_agent)
source.type = "Agents::WeatherAgent"
source.should have(1).error_on(:type)
end
it "should know about available types" do
Agent.types.should include(Agents::WeatherAgent, Agents::WebsiteAgent)
end
end
describe "with an example Agent" do
class Agents::SomethingSource < Agent
default_schedule "2pm"
def check
create_event :payload => {}
end
def validate_options
errors.add(:base, "bad is bad") if options[:bad]
end
end
class Agents::CannotBeScheduled < Agent
cannot_be_scheduled!
def receive(events)
events.each do |event|
create_event :payload => { :events_received => 1 }
end
end
end
before do
stub(Agents::SomethingSource).valid_type?("Agents::SomethingSource") { true }
stub(Agents::CannotBeScheduled).valid_type?("Agents::CannotBeScheduled") { true }
end
describe Agents::SomethingSource do
let(:new_instance) do
agent = Agents::SomethingSource.new(:name => "some agent")
agent.user = users(:bob)
agent
end
it_behaves_like LiquidInterpolatable
it_behaves_like HasGuid
end
describe ".short_type" do
it "returns a short name without 'Agents::'" do
Agents::SomethingSource.new.short_type.should == "SomethingSource"
Agents::CannotBeScheduled.new.short_type.should == "CannotBeScheduled"
end
end
describe ".default_schedule" do
it "stores the default on the class" do
Agents::SomethingSource.default_schedule.should == "2pm"
Agents::SomethingSource.new.default_schedule.should == "2pm"
end
it "sets the default on new instances, allows setting new schedules, and prevents invalid schedules" do
@checker = Agents::SomethingSource.new(:name => "something")
@checker.user = users(:bob)
@checker.schedule.should == "2pm"
@checker.save!
@checker.reload.schedule.should == "2pm"
@checker.update_attribute :schedule, "5pm"
@checker.reload.schedule.should == "5pm"
@checker.reload.schedule.should == "5pm"
@checker.schedule = "this_is_not_real"
@checker.should have(1).errors_on(:schedule)
end
it "should have an empty schedule if it cannot_be_scheduled" do
@checker = Agents::CannotBeScheduled.new(:name => "something")
@checker.user = users(:bob)
@checker.schedule.should be_nil
@checker.should be_valid
@checker.schedule = "5pm"
@checker.save!
@checker.schedule.should be_nil
@checker.schedule = "5pm"
@checker.should have(0).errors_on(:schedule)
@checker.schedule.should be_nil
end
end
describe "#create_event" do
before do
@checker = Agents::SomethingSource.new(:name => "something")
@checker.user = users(:bob)
@checker.save!
end
it "should use the checker's user" do
@checker.check
Event.last.user.should == @checker.user
end
it "should log an error if the Agent has been marked with 'cannot_create_events!'" do
mock(@checker).can_create_events? { false }
lambda {
@checker.check
}.should_not change { Event.count }
@checker.logs.first.message.should =~ /cannot create events/i
end
end
describe ".async_check" do
before do
@checker = Agents::SomethingSource.new(:name => "something")
@checker.user = users(:bob)
@checker.save!
end
it "records last_check_at and calls check on the given Agent" do
mock(@checker).check.once {
@checker.options[:new] = true
}
mock(Agent).find(@checker.id) { @checker }
@checker.last_check_at.should be_nil
Agents::SomethingSource.async_check(@checker.id)
@checker.reload.last_check_at.should be_within(2).of(Time.now)
@checker.reload.options[:new].should be_truthy # Show that we save options
end
it "should log exceptions" do
mock(@checker).check.once {
raise "foo"
}
mock(Agent).find(@checker.id) { @checker }
lambda {
Agents::SomethingSource.async_check(@checker.id)
}.should raise_error
log = @checker.logs.first
log.message.should =~ /Exception/
log.level.should == 4
end
it "should not run disabled Agents" do
mock(Agent).find(agents(:bob_weather_agent).id) { agents(:bob_weather_agent) }
do_not_allow(agents(:bob_weather_agent)).check
agents(:bob_weather_agent).update_attribute :disabled, true
Agent.async_check(agents(:bob_weather_agent).id)
end
end
describe ".receive!" do
before do
stub_request(:any, /wunderground/).to_return(:body => File.read(Rails.root.join("spec/data_fixtures/weather.json")), :status => 200)
stub.any_instance_of(Agents::WeatherAgent).is_tomorrow?(anything) { true }
end
it "should use available events" do
Agent.async_check(agents(:bob_weather_agent).id)
mock(Agent).async_receive(agents(:bob_rain_notifier_agent).id, anything).times(1)
Agent.receive!
end
it "should not propogate to disabled Agents" do
Agent.async_check(agents(:bob_weather_agent).id)
agents(:bob_rain_notifier_agent).update_attribute :disabled, true
mock(Agent).async_receive(agents(:bob_rain_notifier_agent).id, anything).times(0)
Agent.receive!
end
it "should log exceptions" do
mock.any_instance_of(Agents::TriggerAgent).receive(anything).once {
raise "foo"
}
Agent.async_check(agents(:bob_weather_agent).id)
lambda {
Agent.async_receive(agents(:bob_rain_notifier_agent).id, [agents(:bob_weather_agent).events.last.id])
}.should raise_error
log = agents(:bob_rain_notifier_agent).logs.first
log.message.should =~ /Exception/
log.level.should == 4
end
it "should track when events have been seen and not received them again" do
mock.any_instance_of(Agents::TriggerAgent).receive(anything).once
Agent.async_check(agents(:bob_weather_agent).id)
lambda {
Agent.receive!
}.should change { agents(:bob_rain_notifier_agent).reload.last_checked_event_id }
lambda {
Agent.receive!
}.should_not change { agents(:bob_rain_notifier_agent).reload.last_checked_event_id }
end
it "should not run consumers that have nothing to do" do
do_not_allow.any_instance_of(Agents::TriggerAgent).receive(anything)
Agent.receive!
end
it "should group events" do
mock.any_instance_of(Agents::TriggerAgent).receive(anything).twice { |events|
events.map(&:user).map(&:username).uniq.length.should == 1
}
Agent.async_check(agents(:bob_weather_agent).id)
Agent.async_check(agents(:jane_weather_agent).id)
Agent.receive!
end
it "should ignore events that were created before a particular Link" do
agent2 = Agents::SomethingSource.new(:name => "something")
agent2.user = users(:bob)
agent2.save!
agent2.check
mock.any_instance_of(Agents::TriggerAgent).receive(anything).twice
agents(:bob_weather_agent).check # bob_weather_agent makes an event
lambda {
Agent.receive! # event gets propagated
}.should change { agents(:bob_rain_notifier_agent).reload.last_checked_event_id }
# This agent creates a few events before we link to it, but after our last check.
agent2.check
agent2.check
# Now we link to it.
agents(:bob_rain_notifier_agent).sources << agent2
agent2.links_as_source.first.event_id_at_creation.should == agent2.events.reorder("events.id desc").first.id
lambda {
Agent.receive! # but we don't receive those events because they're too old
}.should_not change { agents(:bob_rain_notifier_agent).reload.last_checked_event_id }
# Now a new event is created by agent2
agent2.check
lambda {
Agent.receive! # and we receive it
}.should change { agents(:bob_rain_notifier_agent).reload.last_checked_event_id }
end
end
describe ".async_receive" do
it "should not run disabled Agents" do
mock(Agent).find(agents(:bob_rain_notifier_agent).id) { agents(:bob_rain_notifier_agent) }
do_not_allow(agents(:bob_rain_notifier_agent)).receive
agents(:bob_rain_notifier_agent).update_attribute :disabled, true
Agent.async_receive(agents(:bob_rain_notifier_agent).id, [1, 2, 3])
end
end
describe "creating a new agent and then calling .receive!" do
it "should not backfill events for a newly created agent" do
Event.delete_all
sender = Agents::SomethingSource.new(:name => "Sending Agent")
sender.user = users(:bob)
sender.save!
sender.create_event :payload => {}
sender.create_event :payload => {}
sender.events.count.should == 2
receiver = Agents::CannotBeScheduled.new(:name => "Receiving Agent")
receiver.user = users(:bob)
receiver.sources << sender
receiver.save!
receiver.events.count.should == 0
Agent.receive!
receiver.events.count.should == 0
sender.create_event :payload => {}
Agent.receive!
receiver.events.count.should == 1
end
end
describe "creating agents with propagate_immediately = true" do
it "should schedule subagent events immediately" do
Event.delete_all
sender = Agents::SomethingSource.new(:name => "Sending Agent")
sender.user = users(:bob)
sender.save!
receiver = Agents::CannotBeScheduled.new(
:name => "Receiving Agent",
)
receiver.propagate_immediately = true
receiver.user = users(:bob)
receiver.sources << sender
receiver.save!
sender.create_event :payload => {"message" => "new payload"}
sender.events.count.should == 1
receiver.events.count.should == 1
#should be true without calling Agent.receive!
end
it "should only schedule receiving agents that are set to propagate_immediately" do
Event.delete_all
sender = Agents::SomethingSource.new(:name => "Sending Agent")
sender.user = users(:bob)
sender.save!
im_receiver = Agents::CannotBeScheduled.new(
:name => "Immediate Receiving Agent",
)
im_receiver.propagate_immediately = true
im_receiver.user = users(:bob)
im_receiver.sources << sender
im_receiver.save!
slow_receiver = Agents::CannotBeScheduled.new(
:name => "Slow Receiving Agent",
)
slow_receiver.user = users(:bob)
slow_receiver.sources << sender
slow_receiver.save!
sender.create_event :payload => {"message" => "new payload"}
sender.events.count.should == 1
im_receiver.events.count.should == 1
#we should get the quick one
#but not the slow one
slow_receiver.events.count.should == 0
Agent.receive!
#now we should have one in both
im_receiver.events.count.should == 1
slow_receiver.events.count.should == 1
end
end
describe "validations" do
it "calls validate_options" do
agent = Agents::SomethingSource.new(:name => "something")
agent.user = users(:bob)
agent.options[:bad] = true
agent.should have(1).error_on(:base)
agent.options[:bad] = false
agent.should have(0).errors_on(:base)
end
it "makes options symbol-indifferent before validating" do
agent = Agents::SomethingSource.new(:name => "something")
agent.user = users(:bob)
agent.options["bad"] = true
agent.should have(1).error_on(:base)
agent.options["bad"] = false
agent.should have(0).errors_on(:base)
end
it "makes memory symbol-indifferent before validating" do
agent = Agents::SomethingSource.new(:name => "something")
agent.user = users(:bob)
agent.memory["bad"] = 2
agent.save
agent.memory[:bad].should == 2
end
it "should work when assigned a hash or JSON string" do
agent = Agents::SomethingSource.new(:name => "something")
agent.memory = {}
agent.memory.should == {}
agent.memory["foo"].should be_nil
agent.memory = ""
agent.memory["foo"].should be_nil
agent.memory.should == {}
agent.memory = '{"hi": "there"}'
agent.memory.should == { "hi" => "there" }
agent.memory = '{invalid}'
agent.memory.should == { "hi" => "there" }
agent.should have(1).errors_on(:memory)
agent.memory = "{}"
agent.memory["foo"].should be_nil
agent.memory.should == {}
agent.should have(0).errors_on(:memory)
agent.options = "{}"
agent.options["foo"].should be_nil
agent.options.should == {}
agent.should have(0).errors_on(:options)
agent.options = '{"hi": 2}'
agent.options["hi"].should == 2
agent.should have(0).errors_on(:options)
agent.options = '{"hi": wut}'
agent.options["hi"].should == 2
agent.should have(1).errors_on(:options)
agent.errors_on(:options).should include("was assigned invalid JSON")
agent.options = 5
agent.options["hi"].should == 2
agent.should have(1).errors_on(:options)
agent.errors_on(:options).should include("cannot be set to an instance of Fixnum")
end
it "should not allow agents owned by other people" do
agent = Agents::SomethingSource.new(:name => "something")
agent.user = users(:bob)
agent.source_ids = [agents(:bob_weather_agent).id]
agent.should have(0).errors_on(:sources)
agent.source_ids = [agents(:jane_weather_agent).id]
agent.should have(1).errors_on(:sources)
agent.user = users(:jane)
agent.should have(0).errors_on(:sources)
end
it "should not allow scenarios owned by other people" do
agent = Agents::SomethingSource.new(:name => "something")
agent.user = users(:bob)
agent.scenario_ids = [scenarios(:bob_weather).id]
agent.should have(0).errors_on(:scenarios)
agent.scenario_ids = [scenarios(:bob_weather).id, scenarios(:jane_weather).id]
agent.should have(1).errors_on(:scenarios)
agent.scenario_ids = [scenarios(:jane_weather).id]
agent.should have(1).errors_on(:scenarios)
agent.user = users(:jane)
agent.should have(0).errors_on(:scenarios)
end
it "validates keep_events_for" do
agent = Agents::SomethingSource.new(:name => "something")
agent.user = users(:bob)
agent.should be_valid
agent.keep_events_for = nil
agent.should have(1).errors_on(:keep_events_for)
agent.keep_events_for = 1000
agent.should have(1).errors_on(:keep_events_for)
agent.keep_events_for = ""
agent.should have(1).errors_on(:keep_events_for)
agent.keep_events_for = 5
agent.should be_valid
agent.keep_events_for = 0
agent.should be_valid
agent.keep_events_for = 365
agent.should be_valid
# Rails seems to call to_i on the input. This guards against future changes to that behavior.
agent.keep_events_for = "drop table;"
agent.keep_events_for.should == 0
end
end
describe "cleaning up now-expired events" do
before do
@agent = Agents::SomethingSource.new(:name => "something")
@agent.keep_events_for = 5
@agent.user = users(:bob)
@agent.save!
@event = @agent.create_event :payload => { "hello" => "world" }
@event.expires_at.to_i.should be_within(2).of(5.days.from_now.to_i)
end
describe "when keep_events_for has not changed" do
it "does nothing" do
mock(@agent).update_event_expirations!.times(0)
@agent.options[:foo] = "bar1"
@agent.save!
@agent.options[:foo] = "bar1"
@agent.keep_events_for = 5
@agent.save!
end
end
describe "when keep_events_for is changed" do
it "updates events' expires_at" do
lambda {
@agent.options[:foo] = "bar1"
@agent.keep_events_for = 3
@agent.save!
}.should change { @event.reload.expires_at }
@event.expires_at.to_i.should be_within(2).of(3.days.from_now.to_i)
end
it "updates events relative to their created_at" do
@event.update_attribute :created_at, 2.days.ago
@event.reload.created_at.to_i.should be_within(2).of(2.days.ago.to_i)
lambda {
@agent.options[:foo] = "bar2"
@agent.keep_events_for = 3
@agent.save!
}.should change { @event.reload.expires_at }
@event.expires_at.to_i.should be_within(60 * 61).of(1.days.from_now.to_i) # The larger time is to deal with daylight savings
end
it "nulls out expires_at when keep_events_for is set to 0" do
lambda {
@agent.options[:foo] = "bar"
@agent.keep_events_for = 0
@agent.save!
}.should change { @event.reload.expires_at }.to(nil)
end
end
end
describe "Agent.build_clone" do
before do
Event.delete_all
@sender = Agents::SomethingSource.new(
name: 'Agent (2)',
options: { foo: 'bar2' },
schedule: '5pm')
@sender.user = users(:bob)
@sender.save!
@sender.create_event :payload => {}
@sender.create_event :payload => {}
@sender.events.count.should == 2
@receiver = Agents::CannotBeScheduled.new(
name: 'Agent',
options: { foo: 'bar3' },
keep_events_for: 3,
propagate_immediately: true)
@receiver.user = users(:bob)
@receiver.sources << @sender
@receiver.memory[:test] = 1
@receiver.save!
end
it "should create a clone of a given agent for editing" do
sender_clone = users(:bob).agents.build_clone(@sender)
sender_clone.attributes.should == Agent.new.attributes.
update(@sender.slice(:user_id, :type,
:options, :schedule, :keep_events_for, :propagate_immediately)).
update('name' => 'Agent (2) (2)', 'options' => { 'foo' => 'bar2' })
sender_clone.source_ids.should == []
receiver_clone = users(:bob).agents.build_clone(@receiver)
receiver_clone.attributes.should == Agent.new.attributes.
update(@receiver.slice(:user_id, :type,
:options, :schedule, :keep_events_for, :propagate_immediately)).
update('name' => 'Agent (3)', 'options' => { 'foo' => 'bar3' })
receiver_clone.source_ids.should == [@sender.id]
end
end
end
describe ".trigger_web_request" do
class Agents::WebRequestReceiver < Agent
cannot_be_scheduled!
end
before do
stub(Agents::WebRequestReceiver).valid_type?("Agents::WebRequestReceiver") { true }
end
context "when .receive_web_request is defined" do
before do
@agent = Agents::WebRequestReceiver.new(:name => "something")
@agent.user = users(:bob)
@agent.save!
def @agent.receive_web_request(params, method, format)
memory['last_request'] = [params, method, format]
['Ok!', 200]
end
end
it "calls the .receive_web_request hook, updates last_web_request_at, and saves" do
@agent.trigger_web_request({ :some_param => "some_value" }, "post", "text/html")
@agent.reload.memory['last_request'].should == [ { "some_param" => "some_value" }, "post", "text/html" ]
@agent.last_web_request_at.to_i.should be_within(1).of(Time.now.to_i)
end
end
context "when .receive_webhook is defined" do
before do
@agent = Agents::WebRequestReceiver.new(:name => "something")
@agent.user = users(:bob)
@agent.save!
def @agent.receive_webhook(params)
memory['last_webhook_request'] = params
['Ok!', 200]
end
end
it "outputs a deprecation warning and calls .receive_webhook with the params" do
mock(Rails.logger).warn("DEPRECATED: The .receive_webhook method is deprecated, please switch your Agent to use .receive_web_request.")
@agent.trigger_web_request({ :some_param => "some_value" }, "post", "text/html")
@agent.reload.memory['last_webhook_request'].should == { "some_param" => "some_value" }
@agent.last_web_request_at.to_i.should be_within(1).of(Time.now.to_i)
end
end
end
describe "scopes" do
describe "of_type" do
it "should accept classes" do
agents = Agent.of_type(Agents::WebsiteAgent)
agents.should include(agents(:bob_website_agent))
agents.should include(agents(:jane_website_agent))
agents.should_not include(agents(:bob_weather_agent))
end
it "should accept strings" do
agents = Agent.of_type("Agents::WebsiteAgent")
agents.should include(agents(:bob_website_agent))
agents.should include(agents(:jane_website_agent))
agents.should_not include(agents(:bob_weather_agent))
end
it "should accept instances of an Agent" do
agents = Agent.of_type(agents(:bob_website_agent))
agents.should include(agents(:bob_website_agent))
agents.should include(agents(:jane_website_agent))
agents.should_not include(agents(:bob_weather_agent))
end
end
end
describe "#create_event" do
describe "when the agent has keep_events_for set" do
before do
agents(:jane_weather_agent).keep_events_for.should > 0
end
it "sets expires_at on created events" do
event = agents(:jane_weather_agent).create_event :payload => { 'hi' => 'there' }
event.expires_at.to_i.should be_within(5).of(agents(:jane_weather_agent).keep_events_for.days.from_now.to_i)
end
end
describe "when the agent does not have keep_events_for set" do
before do
agents(:jane_website_agent).keep_events_for.should == 0
end
it "does not set expires_at on created events" do
event = agents(:jane_website_agent).create_event :payload => { 'hi' => 'there' }
event.expires_at.should be_nil
end
end
end
end
describe AgentDrop do
def interpolate(string, agent)
agent.interpolate_string(string, "agent" => agent)
end
before do
@wsa1 = Agents::WebsiteAgent.new(
name: 'XKCD',
options: {
expected_update_period_in_days: 2,
type: 'html',
url: 'http://xkcd.com/',
mode: 'on_change',
extract: {
url: { css: '#comic img', value: '@src' },
title: { css: '#comic img', value: '@alt' },
},
},
schedule: 'every_1h',
keep_events_for: 2)
@wsa1.user = users(:bob)
@wsa1.save!
@wsa2 = Agents::WebsiteAgent.new(
name: 'Dilbert',
options: {
expected_update_period_in_days: 2,
type: 'html',
url: 'http://dilbert.com/',
mode: 'on_change',
extract: {
url: { css: '[id^=strip_enlarged_] img', value: '@src' },
title: { css: '.STR_DateStrip', value: './/text()' },
},
},
schedule: 'every_12h',
keep_events_for: 2)
@wsa2.user = users(:bob)
@wsa2.save!
@efa = Agents::EventFormattingAgent.new(
name: 'Formatter',
options: {
instructions: {
message: '{{agent.name}}: {{title}} {{url}}',
agent: '{{agent.type}}',
},
mode: 'clean',
matchers: [],
skip_created_at: 'false',
},
keep_events_for: 2,
propagate_immediately: true)
@efa.user = users(:bob)
@efa.sources << @wsa1 << @wsa2
@efa.memory[:test] = 1
@efa.save!
end
it 'should be created via Agent#to_liquid' do
@wsa1.to_liquid.class.should be(AgentDrop)
@wsa2.to_liquid.class.should be(AgentDrop)
@efa.to_liquid.class.should be(AgentDrop)
end
it 'should have .type and .name' do
t = '{{agent.type}}: {{agent.name}}'
interpolate(t, @wsa1).should eq('WebsiteAgent: XKCD')
interpolate(t, @wsa2).should eq('WebsiteAgent: Dilbert')
interpolate(t, @efa).should eq('EventFormattingAgent: Formatter')
end
it 'should have .options' do
t = '{{agent.options.url}}'
interpolate(t, @wsa1).should eq('http://xkcd.com/')
interpolate(t, @wsa2).should eq('http://dilbert.com/')
interpolate('{{agent.options.instructions.message}}',
@efa).should eq('{{agent.name}}: {{title}} {{url}}')
end
it 'should have .sources' do
t = '{{agent.sources.size}}: {{agent.sources | map:"name" | join:", "}}'
interpolate(t, @wsa1).should eq('0: ')
interpolate(t, @wsa2).should eq('0: ')
interpolate(t, @efa).should eq('2: XKCD, Dilbert')
end
it 'should have .receivers' do
t = '{{agent.receivers.size}}: {{agent.receivers | map:"name" | join:", "}}'
interpolate(t, @wsa1).should eq('1: Formatter')
interpolate(t, @wsa2).should eq('1: Formatter')
interpolate(t, @efa).should eq('0: ')
end
end
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