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MaxListenersExceededWarning: Possible EventEmitter memory leak detected.
See original GitHub issueThanks for this wonderful repo. first
When I run codeceptjs test and see the following warnings in console, which bothers me. However the test runs successfully.
Expected
$ codeceptjs run demo/acceptance-footer-test.js
CodeceptJS v1.4.2
Using test root "/Users/allen.kim/github/rci-components"
Acceptance test --
✔ Test Agent Footer in 4173ms
What do you get instead?
$ (dev) codeceptjs run demo/acceptance-footer-test.js
CodeceptJS v1.4.2
Using test root "/Users/allen.kim/github/rci-components"
Acceptance test --
(node:4147) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 framedetached listeners added. Use emitter.setMaxListeners() to increase limit
(node:4147) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 response listeners added. Use emitter.setMaxListeners() to increase limit
(node:4147) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 lifecycleevent listeners added. Use emitter.setMaxListeners() to increase limit
(node:4147) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 framenavigatedwithindocument listeners added. Use emitter.setMaxListeners() to increase limit
✔ Test Agent Footer in 4128ms
Provide console output if related. Use
--verbosemode for more details.
$ codeceptjs run --verbose demo/acceptance-footer-test.js
CodeceptJS v1.4.2
Using test root "/Users/allen.kim/github/rci-components"
Helpers: puppeteer
Plugins: screenshotOnFail
Acceptance test --
[1] Starting recording promises
Emitted | suite.before ([object Object])
Test Agent Footer
Emitted | test.before ([object Object])
Emitted | test.start ([object Object])
Emitted | step.before (I resize window 763, 860)
Emitted | step.after (I resize window 763, 860)
Emitted | step.before (I am on page "/#/components/agent-footer")
Emitted | step.after (I am on page "/#/components/agent-footer")
Emitted | step.before (I wait 1)
Emitted | step.after (I wait 1)
Emitted | step.before (I click ".mce-page-blocker")
Emitted | step.after (I click ".mce-page-blocker")
Emitted | step.before (I see "Allen Kim")
Emitted | step.after (I see "Allen Kim")
Emitted | step.before (I click "Sign Out")
Emitted | step.after (I click "Sign Out")
Emitted | step.before (I see "Do you want to continue?")
Emitted | step.after (I see "Do you want to continue?")
Emitted | step.before (I see "Stay signed in")
Emitted | step.after (I see "Stay signed in")
Emitted | step.before (I click ".signout-link")
Emitted | step.after (I click ".signout-link")
Emitted | step.before (I see "Message: CustomEvent fired. type is "logout"")
Emitted | step.after (I see "Message: CustomEvent fired. type is "logout"")
Emitted | step.before (I click "Stay signed in")
Emitted | step.after (I click "Stay signed in")
Emitted | step.before (I dont see "Do you want to continue?")
Emitted | step.after (I dont see "Do you want to continue?")
Emitted | step.before (I click "Report Issue")
Emitted | step.after (I click "Report Issue")
Emitted | step.before (I see "CustomEvent fired. type is "report-issue-clicked"")
Emitted | step.after (I see "CustomEvent fired. type is "report-issue-clicked"")
Emitted | step.before (I click "SSP")
Emitted | step.after (I click "SSP")
Emitted | step.before (I see "CustomEvent fired. type is "ssp-clicked"")
Emitted | step.after (I see "CustomEvent fired. type is "ssp-clicked"")
Emitted | step.before (I click "Français")
Emitted | step.after (I click "Français")
Emitted | step.before (I see "CustomEvent fired. type is "language-changed"")
Emitted | step.after (I see "CustomEvent fired. type is "language-changed"")
Emitted | step.before (I click ".rui-icon-chevron-up")
Emitted | step.after (I click ".rui-icon-chevron-up")
Emitted | step.before (I click "Add links to footer")
Emitted | step.after (I click "Add links to footer")
Emitted | step.before (I click "Oasys")
Emitted | step.after (I click "Oasys")
Emitted | step.before (I see "CustomEvent fired. type is "deeplink-clicked" and detail is "oasys"")
Emitted | step.after (I see "CustomEvent fired. type is "deeplink-clicked" and detail is "oasys"")
Emitted | step.before (I see "Sales Assist")
Emitted | step.after (I see "Sales Assist")
Emitted | step.before (I click "Sales Assist")
Emitted | step.after (I click "Sales Assist")
Emitted | step.before (I see "CustomEvent fired. type is "deeplink-clicked" and detail is "salesAssist"")
Emitted | step.after (I see "CustomEvent fired. type is "deeplink-clicked" and detail is "salesAssist"")
Emitted | step.before (I click ".rui-icon-chevron-up")
Emitted | step.after (I click ".rui-icon-chevron-up")
Emitted | step.before (I dont see "Live chat")
Emitted | step.after (I dont see "Live chat")
Emitted | step.before (I click ".agent-live-chat-indicator")
Emitted | step.after (I click ".agent-live-chat-indicator")
Emitted | step.before (I see "Live chat")
Emitted | step.after (I see "Live chat")
Emitted | step.before (I click ".agent-live-chat-indicator")
Emitted | step.after (I click ".agent-live-chat-indicator")
Emitted | step.before (I dont see "Live chat")
Emitted | step.after (I dont see "Live chat")
Emitted | step.before (I am on page "/#/components/agent-session-detail")
Emitted | step.after (I am on page "/#/components/agent-session-detail")
Emitted | step.before (I wait for element "agent-session-detail")
Emitted | step.after (I wait for element "agent-session-detail")
Emitted | step.before (I am on page "/#/components/agent-preferred-links")
Emitted | step.after (I am on page "/#/components/agent-preferred-links")
Emitted | step.before (I wait for element "agent-preferred-links")
Emitted | step.after (I wait for element "agent-preferred-links")
Emitted | step.before (I am on page "/#/components/agent-quick-links")
Emitted | step.after (I am on page "/#/components/agent-quick-links")
Emitted | step.before (I wait for element "agent-quick-links")
Emitted | step.after (I wait for element "agent-quick-links")
Emitted | step.before (I am on page "/#/components/agent-live-chat")
Emitted | step.after (I am on page "/#/components/agent-live-chat")
Emitted | step.before (I wait for element "agent-live-chat")
Emitted | step.after (I wait for element "agent-live-chat")
Emitted | step.start (I resize window 763, 860)
Test: I
I resize window 763, 860
Emitted | step.passed (I resize window 763, 860)
Emitted | step.finish (I resize window 763, 860)
Emitted | step.start (I am on page "/#/components/agent-footer")
I am on page "/#/components/agent-footer"
› [Url] http://localhost:4200/#/components/agent-footer
› [Browser:Log] Angular is running in the development mode. Call enableProdMode() to enable the production mode.JSHandle:Angular is running in the development m…
Emitted | step.passed (I am on page "/#/components/agent-footer")
Emitted | step.finish (I am on page "/#/components/agent-footer")
Emitted | step.start (I wait 1)
I wait 1
› [Browser:Error] Failed to load resource: the server responded with a status of 404 (Not Found)
Emitted | step.passed (I wait 1)
Emitted | step.finish (I wait 1)
Emitted | step.start (I click ".mce-page-blocker")
I click ".mce-page-blocker"
Emitted | step.passed (I click ".mce-page-blocker")
Emitted | step.finish (I click ".mce-page-blocker")
Emitted | step.start (I see "Allen Kim")
I see "Allen Kim"
Emitted | step.passed (I see "Allen Kim")
Emitted | step.finish (I see "Allen Kim")
Emitted | step.start (I click "Sign Out")
I click "Sign Out"
Emitted | step.passed (I click "Sign Out")
Emitted | step.finish (I click "Sign Out")
Emitted | step.start (I see "Do you want to continue?")
I see "Do you want to continue?"
Emitted | step.passed (I see "Do you want to continue?")
Emitted | step.finish (I see "Do you want to continue?")
Emitted | step.start (I see "Stay signed in")
I see "Stay signed in"
Emitted | step.passed (I see "Stay signed in")
Emitted | step.finish (I see "Stay signed in")
Emitted | step.start (I click ".signout-link")
I click ".signout-link"
Emitted | step.passed (I click ".signout-link")
Emitted | step.finish (I click ".signout-link")
Emitted | step.start (I see "Message: CustomEvent fired. type is "logout"")
I see "Message: CustomEvent fired. type is "logout""
Emitted | step.passed (I see "Message: CustomEvent fired. type is "logout"")
Emitted | step.finish (I see "Message: CustomEvent fired. type is "logout"")
Emitted | step.start (I click "Stay signed in")
I click "Stay signed in"
Emitted | step.passed (I click "Stay signed in")
Emitted | step.finish (I click "Stay signed in")
Emitted | step.start (I dont see "Do you want to continue?")
I dont see "Do you want to continue?"
Emitted | step.passed (I dont see "Do you want to continue?")
Emitted | step.finish (I dont see "Do you want to continue?")
Emitted | step.start (I click "Report Issue")
I click "Report Issue"
Emitted | step.passed (I click "Report Issue")
Emitted | step.finish (I click "Report Issue")
Emitted | step.start (I see "CustomEvent fired. type is "report-issue-clicked"")
I see "CustomEvent fired. type is "report-issue-clicked""
Emitted | step.passed (I see "CustomEvent fired. type is "report-issue-clicked"")
Emitted | step.finish (I see "CustomEvent fired. type is "report-issue-clicked"")
Emitted | step.start (I click "SSP")
I click "SSP"
Emitted | step.passed (I click "SSP")
Emitted | step.finish (I click "SSP")
Emitted | step.start (I see "CustomEvent fired. type is "ssp-clicked"")
I see "CustomEvent fired. type is "ssp-clicked""
Emitted | step.passed (I see "CustomEvent fired. type is "ssp-clicked"")
Emitted | step.finish (I see "CustomEvent fired. type is "ssp-clicked"")
Emitted | step.start (I click "Français")
I click "Français"
Emitted | step.passed (I click "Français")
Emitted | step.finish (I click "Français")
Emitted | step.start (I see "CustomEvent fired. type is "language-changed"")
I see "CustomEvent fired. type is "language-changed""
Emitted | step.passed (I see "CustomEvent fired. type is "language-changed"")
Emitted | step.finish (I see "CustomEvent fired. type is "language-changed"")
Emitted | step.start (I click ".rui-icon-chevron-up")
I click ".rui-icon-chevron-up"
Emitted | step.passed (I click ".rui-icon-chevron-up")
Emitted | step.finish (I click ".rui-icon-chevron-up")
Emitted | step.start (I click "Add links to footer")
I click "Add links to footer"
Emitted | step.passed (I click "Add links to footer")
Emitted | step.finish (I click "Add links to footer")
Emitted | step.start (I click "Oasys")
I click "Oasys"
(node:3483) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 framedetached listeners added. Use emitter.setMaxListeners() to increase limit
(node:3483) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 response listeners added. Use emitter.setMaxListeners() to increase limit
Emitted | step.passed (I click "Oasys")
Emitted | step.finish (I click "Oasys")
Emitted | step.start (I see "CustomEvent fired. type is "deeplink-clicked" and detail is "oasys"")
I see "CustomEvent fired. type is "deeplink-clicked" and detail is "oasys""
Emitted | step.passed (I see "CustomEvent fired. type is "deeplink-clicked" and detail is "oasys"")
Emitted | step.finish (I see "CustomEvent fired. type is "deeplink-clicked" and detail is "oasys"")
Emitted | step.start (I see "Sales Assist")
I see "Sales Assist"
Emitted | step.passed (I see "Sales Assist")
Emitted | step.finish (I see "Sales Assist")
Emitted | step.start (I click "Sales Assist")
I click "Sales Assist"
(node:3483) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 lifecycleevent listeners added. Use emitter.setMaxListeners() to increase limit
(node:3483) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 framenavigatedwithindocument listeners added. Use emitter.setMaxListeners() to increase limit
Emitted | step.passed (I click "Sales Assist")
Emitted | step.finish (I click "Sales Assist")
Emitted | step.start (I see "CustomEvent fired. type is "deeplink-clicked" and detail is "salesAssist"")
I see "CustomEvent fired. type is "deeplink-clicked" and detail is "salesAssist""
Emitted | step.passed (I see "CustomEvent fired. type is "deeplink-clicked" and detail is "salesAssist"")
Emitted | step.finish (I see "CustomEvent fired. type is "deeplink-clicked" and detail is "salesAssist"")
Emitted | step.start (I click ".rui-icon-chevron-up")
I click ".rui-icon-chevron-up"
Emitted | step.passed (I click ".rui-icon-chevron-up")
Emitted | step.finish (I click ".rui-icon-chevron-up")
Emitted | step.start (I dont see "Live chat")
I dont see "Live chat"
Emitted | step.passed (I dont see "Live chat")
Emitted | step.finish (I dont see "Live chat")
Emitted | step.start (I click ".agent-live-chat-indicator")
I click ".agent-live-chat-indicator"
Emitted | step.passed (I click ".agent-live-chat-indicator")
Emitted | step.finish (I click ".agent-live-chat-indicator")
Emitted | step.start (I see "Live chat")
I see "Live chat"
Emitted | step.passed (I see "Live chat")
Emitted | step.finish (I see "Live chat")
Emitted | step.start (I click ".agent-live-chat-indicator")
I click ".agent-live-chat-indicator"
Emitted | step.passed (I click ".agent-live-chat-indicator")
Emitted | step.finish (I click ".agent-live-chat-indicator")
Emitted | step.start (I dont see "Live chat")
I dont see "Live chat"
Emitted | step.passed (I dont see "Live chat")
Emitted | step.finish (I dont see "Live chat")
Emitted | step.start (I am on page "/#/components/agent-session-detail")
I am on page "/#/components/agent-session-detail"
› [Url] http://localhost:4200/#/components/agent-session-detail
Emitted | step.passed (I am on page "/#/components/agent-session-detail")
Emitted | step.finish (I am on page "/#/components/agent-session-detail")
Emitted | step.start (I wait for element "agent-session-detail")
I wait for element "agent-session-detail"
Emitted | step.passed (I wait for element "agent-session-detail")
Emitted | step.finish (I wait for element "agent-session-detail")
Emitted | step.start (I am on page "/#/components/agent-preferred-links")
I am on page "/#/components/agent-preferred-links"
› [Url] http://localhost:4200/#/components/agent-preferred-links
Emitted | step.passed (I am on page "/#/components/agent-preferred-links")
Emitted | step.finish (I am on page "/#/components/agent-preferred-links")
Emitted | step.start (I wait for element "agent-preferred-links")
I wait for element "agent-preferred-links"
Emitted | step.passed (I wait for element "agent-preferred-links")
Emitted | step.finish (I wait for element "agent-preferred-links")
Emitted | step.start (I am on page "/#/components/agent-quick-links")
I am on page "/#/components/agent-quick-links"
› [Url] http://localhost:4200/#/components/agent-quick-links
Emitted | step.passed (I am on page "/#/components/agent-quick-links")
Emitted | step.finish (I am on page "/#/components/agent-quick-links")
Emitted | step.start (I wait for element "agent-quick-links")
I wait for element "agent-quick-links"
Emitted | step.passed (I wait for element "agent-quick-links")
Emitted | step.finish (I wait for element "agent-quick-links")
Emitted | step.start (I am on page "/#/components/agent-live-chat")
I am on page "/#/components/agent-live-chat"
› [Url] http://localhost:4200/#/components/agent-live-chat
Emitted | step.passed (I am on page "/#/components/agent-live-chat")
Emitted | step.finish (I am on page "/#/components/agent-live-chat")
Emitted | step.start (I wait for element "agent-live-chat")
I wait for element "agent-live-chat"
Emitted | step.passed (I wait for element "agent-live-chat")
Emitted | step.finish (I wait for element "agent-live-chat")
Emitted | test.passed ([object Object])
Emitted | test.finish ([object Object])
✔ OK in 4195ms
Emitted | test.after ([object Object])
Emitted | suite.after ([object Object])
OK | 1 passed // 5s
Emitted | global.result ([object Object])
Emitted | global.after ([object Object])
Provide test source code if related
$ cat demo/acceptance-footer-test.js
Feature('Acceptance test');
Scenario('Test Agent Footer', I => {
//initalize test and wait for page to load
I.resizeWindow(763,860);
I.amOnPage('/#/components/agent-footer');
I.wait(1);
I.click('.mce-page-blocker');
//check to see agent name is displayed
I.see('Allen Kim');
//test session-detail-indicator and session-details components
I.click('Sign Out');
I.see('Do you want to continue?');
I.see('Stay signed in');
I.click('.signout-link');
I.see('Message: CustomEvent fired. type is "logout"');
I.click('Stay signed in');
I.dontSee('Do you want to continue?');
// agent-footer deep links
I.click('Report Issue');
I.see('CustomEvent fired. type is "report-issue-clicked"');
I.click('SSP');
I.see('CustomEvent fired. type is "ssp-clicked"')
I.click('Français');
I.see('CustomEvent fired. type is "language-changed"')
//test agent-quick-link-indicator and agent-quick-link components
I.click('.rui-icon-chevron-up');
I.click('Add links to footer');
I.click('Oasys');
I.see('CustomEvent fired. type is "deeplink-clicked" and detail is "oasys"');
//test agent-quick-link-indicator and agent-quick-link components
I.see('Sales Assist');
I.click('Sales Assist');
I.see('CustomEvent fired. type is "deeplink-clicked" and detail is "salesAssist"');
I.click('.rui-icon-chevron-up');
//test agent-live-chat and agent-live-chat-indicator
I.dontSee('Live chat');
I.click('.agent-live-chat-indicator');
I.see('Live chat');
I.click('.agent-live-chat-indicator');
I.dontSee('Live chat');
//testing each component page in demo
I.amOnPage('/#/components/agent-session-detail');
I.waitForElement('agent-session-detail');
I.amOnPage('/#/components/agent-preferred-links');
I.waitForElement('agent-preferred-links')
I.amOnPage('/#/components/agent-quick-links');
I.waitForElement('agent-quick-links');
I.amOnPage('/#/components/agent-live-chat');
I.waitForElement('agent-live-chat');
});
Details
- CodeceptJS version: v1.4.2
- NodeJS Version: 9.4.0
- Operating System: Mac Os X Maverick
- Helper: Puppeteer 1.8.0
- Configuration file:
$ (dev) cat codecept.json
{
"tests": "{,!(custom-elements|node_modules)/**/}*-test.js",
"timeout": 10000,
"output": "./output",
"helpers": {
"puppeteer": {
"show": true,
"url": "http://localhost:4200"
}
},
"include": {
"I": "./test/codecept-steps-file.js"
},
"bootstrap": false,
"mocha": {},
"name": "app"
}```
Issue Analytics
- State:
- Created 5 years ago
- Comments:7 (5 by maintainers)
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@luismanuel001 I have tested with your new helper, and it works fine.
I think this is related with an issue I’m having in my project, and I think it is due to the
click()implementation on the puppeteer helper, that for some reason, it is calling thewaitForNavigation()method at the end of every click, while I think this should only be called if it is a click that triggers a navigation (ex. an anchor tag click).I tried removing the call to the
this.waitForNavigation()at the end of theproceedClick()method on the puppeteer helper (https://github.com/Codeception/CodeceptJS/blob/1.4.3/lib/helper/Puppeteer.js#L1804), and all memory leak warnings, and all my navigation timeouts warnings went away.I might create a PR with a solution for this later this week, but in the meantime I hope this helps you.