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require 'spec_helper'
describe Agents::JavaScriptAgent do
before do
@valid_params = {
:name => "somename",
:options => {
:code => "Agent.check = function() { this.createEvent({ 'message': 'hi' }); };",
}
}
@agent = Agents::JavaScriptAgent.new(@valid_params)
@agent.user = users(:jane)
@agent.save!
end
describe "validations" do
it "requires 'code'" do
expect(@agent).to be_valid
@agent.options['code'] = ''
expect(@agent).not_to be_valid
@agent.options.delete('code')
expect(@agent).not_to be_valid
end
it "checks for a valid 'language', but allows nil" do
expect(@agent).to be_valid
@agent.options['language'] = ''
expect(@agent).to be_valid
@agent.options.delete('language')
expect(@agent).to be_valid
@agent.options['language'] = 'foo'
expect(@agent).not_to be_valid
%w[javascript JavaScript coffeescript CoffeeScript].each do |valid_language|
@agent.options['language'] = valid_language
expect(@agent).to be_valid
end
end
it "accepts a credential, but it must exist" do
expect(@agent).to be_valid
@agent.options['code'] = 'credential:foo'
expect(@agent).not_to be_valid
users(:jane).user_credentials.create! :credential_name => "foo", :credential_value => "bar"
expect(@agent.reload).to be_valid
end
end
describe "#working?" do
describe "when expected_update_period_in_days is set" do
it "returns false when more than expected_update_period_in_days have passed since the last event creation" do
@agent.options['expected_update_period_in_days'] = 1
@agent.save!
expect(@agent).not_to be_working
@agent.check
expect(@agent.reload).to be_working
three_days_from_now = 3.days.from_now
stub(Time).now { three_days_from_now }
expect(@agent).not_to be_working
end
end
describe "when expected_receive_period_in_days is set" do
it "returns false when more than expected_receive_period_in_days have passed since the last event was received" do
@agent.options['expected_receive_period_in_days'] = 1
@agent.save!
expect(@agent).not_to be_working
Agents::JavaScriptAgent.async_receive @agent.id, [events(:bob_website_agent_event).id]
expect(@agent.reload).to be_working
two_days_from_now = 2.days.from_now
stub(Time).now { two_days_from_now }
expect(@agent.reload).not_to be_working
end
end
end
describe "executing code" do
it "works by default" do
@agent.options = @agent.default_options
@agent.options['make_event'] = true
@agent.save!
expect {
expect {
@agent.receive([events(:bob_website_agent_event)])
@agent.check
}.not_to change { AgentLog.count }
}.to change { Event.count }.by(2)
end
describe "using credentials as code" do
before do
@agent.user.user_credentials.create :credential_name => 'code-foo', :credential_value => 'Agent.check = function() { this.log("ran it"); };'
@agent.options['code'] = "credential:code-foo\n\n"
@agent.save!
end
it "accepts credentials" do
@agent.check
expect(AgentLog.last.message).to eq("ran it")
end
it "logs an error when the credential goes away" do
@agent.user.user_credentials.delete_all
@agent.reload.check
expect(AgentLog.last.message).to eq("Unable to find credential")
end
end
describe "error handling" do
it "should log an error when V8 has issues" do
@agent.options['code'] = 'syntax error!'
@agent.save!
expect {
expect {
@agent.check
}.not_to raise_error
}.to change { AgentLog.count }.by(1)
expect(AgentLog.last.message).to match(/Unexpected identifier/)
expect(AgentLog.last.level).to eq(4)
end
it "should log an error when JavaScript throws" do
@agent.options['code'] = 'Agent.check = function() { throw "oh no"; };'
@agent.save!
expect {
expect {
@agent.check
}.not_to raise_error
}.to change { AgentLog.count }.by(1)
expect(AgentLog.last.message).to match(/oh no/)
expect(AgentLog.last.level).to eq(4)
end
it "won't store NaNs" do
@agent.options['code'] = 'Agent.check = function() { this.memory("foo", NaN); };'
@agent.save!
@agent.check
expect(@agent.memory['foo']).to eq('NaN') # string
@agent.save!
expect { @agent.reload.memory }.not_to raise_error
end
end
describe "creating events" do
it "creates events with this.createEvent in the JavaScript environment" do
@agent.options['code'] = 'Agent.check = function() { this.createEvent({ message: "This is an event!", stuff: { foo: 5 } }); };'
@agent.save!
expect {
expect {
@agent.check
}.not_to change { AgentLog.count }
}.to change { Event.count }.by(1)
created_event = @agent.events.last
expect(created_event.payload).to eq({ 'message' => "This is an event!", 'stuff' => { 'foo' => 5 } })
end
end
describe "logging" do
it "can output AgentLogs with this.log and this.error in the JavaScript environment" do
@agent.options['code'] = 'Agent.check = function() { this.log("woah"); this.error("WOAH!"); };'
@agent.save!
expect {
expect {
@agent.check
}.not_to raise_error
}.to change { AgentLog.count }.by(2)
log1, log2 = AgentLog.last(2)
expect(log1.message).to eq("woah")
expect(log1.level).to eq(3)
expect(log2.message).to eq("WOAH!")
expect(log2.level).to eq(4)
end
end
describe "escaping and unescaping HTML" do
it "can escape and unescape html with this.escapeHtml and this.unescapeHtml in the javascript environment" do
@agent.options['code'] = 'Agent.check = function() { this.createEvent({ escaped: this.escapeHtml(\'test \"escaping\" <characters>\'), unescaped: this.unescapeHtml(\'test "unescaping" <characters>\')}); };'
@agent.save!
expect {
expect {
@agent.check
}.not_to change { AgentLog.count }
}.to change { Event.count}.by(1)
created_event = @agent.events.last
expect(created_event.payload).to eq({ 'escaped' => 'test "escaping" <characters>', 'unescaped' => 'test "unescaping" <characters>'})
end
end
describe "getting incoming events" do
it "can access incoming events in the JavaScript enviroment via this.incomingEvents" do
event = Event.new
event.agent = agents(:bob_rain_notifier_agent)
event.payload = { :data => "Something you should know about" }
event.save!
event.reload
@agent.options['code'] = <<-JS
Agent.receive = function() {
var events = this.incomingEvents();
for(var i = 0; i < events.length; i++) {
this.createEvent({ 'message': 'I got an event!', 'event_was': events[i].payload });
}
}
JS
@agent.save!
expect {
expect {
@agent.receive([events(:bob_website_agent_event), event])
}.not_to change { AgentLog.count }
}.to change { Event.count }.by(2)
created_event = @agent.events.first
expect(created_event.payload).to eq({ 'message' => "I got an event!", 'event_was' => { 'data' => "Something you should know about" } })
end
end
describe "getting and setting memory, getting options" do
it "can access options via this.options and work with memory via this.memory" do
@agent.options['code'] = <<-JS
Agent.check = function() {
if (this.options('make_event')) {
var callCount = this.memory('callCount') || 0;
this.memory('callCount', callCount + 1);
}
};
JS
@agent.save!
expect {
expect {
@agent.check
expect(@agent.memory['callCount']).not_to be_present
@agent.options['make_event'] = true
@agent.check
expect(@agent.memory['callCount']).to eq(1)
@agent.check
expect(@agent.memory['callCount']).to eq(2)
@agent.memory['callCount'] = 20
@agent.check
expect(@agent.memory['callCount']).to eq(21)
}.not_to change { AgentLog.count }
}.not_to change { Event.count }
end
end
describe "using CoffeeScript" do
it "will accept a 'language' of 'CoffeeScript'" do
@agent.options['code'] = 'Agent.check = -> this.log("hello from coffeescript")'
@agent.options['language'] = 'CoffeeScript'
@agent.save!
expect {
@agent.check
}.not_to raise_error
expect(AgentLog.last.message).to eq("hello from coffeescript")
end
end
end
end
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