mirror of
https://github.com/Smaug123/KaTeX
synced 2025-10-05 03:08:40 +00:00
3f69de5036
* Group more test npm scripts into `test:` * Update documentations on the development workflow * Update .travis.yml to match updated NPM scripts * Run npm install in Travis
72 lines
2.6 KiB
Markdown
72 lines
2.6 KiB
Markdown
# How to generate screenshotter images
|
|
|
|
## Automatic generation of screenshots
|
|
|
|
Now you too can generate screenshots from your own computer, and (hopefully)
|
|
have them look mostly the same as the current ones! Make sure you have docker
|
|
installed and running.
|
|
If all you want is (re)create
|
|
all the snapshots for all the browsers, then you can do so by:
|
|
|
|
npm run test:screenshots:update
|
|
|
|
It will fetch all required selenium docker images, and use them to
|
|
take screenshots.
|
|
|
|
## Manual generation
|
|
|
|
If you are creating screenshots on a regular basis, you can keep the
|
|
docker containers with the selenium setups running. Essentially you
|
|
are encouraged to reproduce the steps from `screenshotter.sh`
|
|
manually. Example run for Firefox:
|
|
|
|
container=$(docker run -d -P selenium/standalone-firefox:2.46.0)
|
|
node dockers/Screenshotter/screenshotter.js -b firefox -c ${container}
|
|
# possibly repeat the above command as often as you need, then eventually
|
|
docker stop ${container}
|
|
docker rm ${container}
|
|
|
|
For Chrome, simply replace both occurrences of `firefox` with `chrome`.
|
|
|
|
## Use without docker
|
|
|
|
It is possible to run `screenshotter.js` without the use of Docker:
|
|
|
|
npm install selenium-webdriver
|
|
node dockers/Screenshotter/screenshotter.js
|
|
|
|
This will generate screenshots using the Firefox installed on your system.
|
|
Browsers other than Firefox can be targeted using the `--browser` option.
|
|
For a complete list of options pass `--help` as an argument to
|
|
`screenshotter.js`. Using these it should be possible to have the script
|
|
connect to almost any Selenium web driver you might have access to.
|
|
|
|
Note that screenshots taken without Docker are very likely to disagree
|
|
from the ones stored in the repository, due to different versions of
|
|
various software components being used. The screenshots taken in this
|
|
fashion are well suited for visual inspection, but for exact binary
|
|
comparisons it would be neccessary to carefully set up the environment
|
|
to match the one used by the Docker approach.
|
|
|
|
## Choosing the list of test cases
|
|
|
|
Both `screenshotter.js` and `screenshotter.sh` will accept
|
|
an `--include` option (short `-i`) which can be used to specify
|
|
a list of test cases to be processed, as a comma separated list.
|
|
Conversely, the `--exclude` option (short `-x`) can be used
|
|
to specify a list of cases which are not being processed.
|
|
|
|
Examples:
|
|
|
|
node dockers/Screenshotter/screenshotter.js -i Sqrt,SqrtRoot
|
|
dockers/Screenshotter/screenshotter.sh --exclude=GreekLetters
|
|
|
|
# How to run screenshotter tests
|
|
|
|
You can verify screenshots by running:
|
|
|
|
npm run test:screenshots
|
|
|
|
or passing `--verify` option to `screenshotter.js` or `screenshotter.sh`.
|
|
See above for more details.
|