The latest release can be installed easily:
npm install -g yeti
Yeti requires Node.js, which provides the
npm command for installation.
You can download Node.js source or pre-built
installers from their website.
Running a test
Just run Yeti with the HTML files containing your tests.
$ yeti test/*.html Creating a Hub at http://localhost:9000 Waiting for agents to connect at http://localhost:9000. When ready, press Enter to begin testing.
Point your browsers at that URL, then come back and press Enter.
[Open some browsers...] Agent connected: Safari (6.0) / Mac OS Agent connected: Chrome (22.0.1221.0) / Mac OS [Come back, press Enter] ✔ Testing started on Safari (6.0) / Mac OS, Chrome (22.0.1221.0) / Mac OS Testing... / 86% complete (19/22) 121.99 tests/sec ✔ Agent completed: Safari (6.0) / Mac OS Testing... | 95% complete (21/22) 115.40 tests/sec ✔ Agent completed: Chrome (22.0.1221.0) / Mac OS Testing... \ 100% complete (22/22) 115.23 tests/sec 504 tests passed! (9164ms) $
Yeti exits automatically when all tests complete. If test failures occur, Yeti will exit with a non-zero status code.
Yeti automatically includes a line coverage summary if your tests were instrumented with YUI Test Coverage.
✔ Testing started on Safari (6.0) / Mac OS Testing... \ 13% complete (10/60) 11.85 tests/sec 44% line coverage
To save time, start a Yeti Hub.
$ yeti --server Yeti Hub listening on port 9000.
Point browsers at your local Yeti on port 9000. Now, you're ready to run tests without having to reconnect browsers each time.
Starting Yeti in another terminal will connect to that Hub instead of starting a new one and will begin testing immediately if browsers are already connected.
$ yeti test/*.html Connected to http://localhost:9000 Agent connected: Chrome (22.0.1221.0) / Mac OS Agent connected: Safari (6.0) / Mac OS ✔ Testing started on Chrome (22.0.1221.0) / Mac OS, Safari (6.0) / Mac OS Testing... / 68% complete (15/22) 98.84 tests/sec ✔ Agent completed: Chrome (22.0.1221.0) / Mac OS Testing... | 95% complete (21/22) 91.65 tests/sec ✔ Agent completed: Safari (6.0) / Mac OS Testing... \ 100% complete (22/22) 91.60 tests/sec 504 tests passed! (11529ms) $
Sharing Your Yeti Hub
Your Yeti Hub can be shared with other developers.
First, I'll start a Hub on test.yeti.cx on port 80.
$ yeti --server --port 80
Go ahead and point a few browsers there.
Now, others can connect to it from their computer like so:
$ yeti --hub http://test.yeti.cx/ test/*.html Connected to http://test.yeti.cx/ Waiting for agents to connect at http://test.yeti.cx/. When ready, press Enter to begin testing.
pwd and your test file will be served through the Hub. Like magic.
[Hit Enter] Agent connected: Chrome (22.0.1221.0) / Mac OS Agent connected: Safari (6.0) / Mac OS ✔ Testing started on Chrome (22.0.1221.0) / Mac OS, Safari (6.0) / Mac OS Testing... - 91% complete (20/22) 122.51 tests/sec ✔ Agent completed: Safari (6.0) / Mac OS Testing... | 95% complete (21/22) 120.21 tests/sec ✔ Agent completed: Chrome (22.0.1221.0) / Mac OS Testing... \ 100% complete (22/22) 120.05 tests/sec 504 tests passed! (8763ms)
This makes it really simple to setup an ad-hoc testing lab shared with your team.
Yeti will disconnect a browser if it does not record any activity from it for 45 seconds.
You can adjust this interval with the
This will run Yeti with a 120 second timeout:
$ yeti --timeout 120 test.html
Query string parameters
You can specify query string parameters to add to your test URLs. This can be used to pass information to your tests that control its behavior.
This will append
?fliter=coverage to your tests, which is used by the tests
for the YUI Library to trigger loading instrumented code.
$ yeti --query 'filter=coverage' test/*.html
Yeti will report an uncaught exceptions as Script Errors.
Mobile testing made easy
When combined with localtunnel, mobile testing is simple. If you're not dealing with sensitive information, startup your Yeti Hub and then run:
$ localtunnel 9000 Port 9000 is now publicly accessible from http://3z48.localtunnel.com ...
You can then visit that URL on your mobile (or any other) device and have it run new tests.
require("yeti") inside your application to script Yeti for your own use.
For API documentation:
make htmlto build HTML documentation to
- Review code comments inside
Yeti follows Semantic Versioning but is currently at a 0.x.y release. The public API is not stable. There will be changes.
Yeti should work on all platforms supported by Node.js. It's tested on Linux and OS X.
You must start Yeti's client in the directory you'll be serving tests from. For security reasons, Yeti will reject requests that try to access files outside of the directory you start Yeti in.
Install latest Yeti snapshot
You can install the latest in-development snapshot of Yeti easily, too:
npm install -g http://latest.yeti.cx
Do you want to add new features or fix bugs in Yeti itself? We made it easy for you to hack on Yeti.
Experimental: Develop on Windows
npm install, replace the
make commands below with
.\jake.bat to use the experimental Jake tasks that are Windows ready.
git clone https://github.com/yui/yeti.git cd yeti
Install Yeti's dependencies.
Run tests & code coverage
Yeti's automated tests require PhantomJS.
You can download PhantomJS source or pre-built
binaries from their website. Make sure the
phantomjs binary is installed in your PATH.
make test make coverage
The latter command uses JSCoverage for Node.js,
which will be built and installed to
Yeti uses Selleck to generate its website. Selleck files are located in
Documentation will be built to
Yeti uses YUIDocJS to generate API documentation from inline JSDoc comment blocks.
Documentation will be built to
You may also run the linter on individual files with
./go lint test/blizzard.js
Yeti uses JSHint to analyze code for problems. See
.jshintrc for options used by Yeti.
Requires Google Chrome Canary and OS X.
Profile the Yeti Hub:
./go profile --server
./go profile without
--server to profile the Yeti client
requires an interactive terminal, which does not yet work.
Contribute to Yeti
Bugs & Feedback
Open a ticket on YUILibrary.com's Yeti Issue Tracker to report bugs or feature requests.
Yeti is free to use under YUI's BSD license. See the LICENSE file or the YUI license page for license text and copyright information.