87f215939c
- remove jitter when using RegularShape size in animation, size should always be an integer - canvas may have been too small for miter line join - canvas was at least one stroke width too large for round line join - reduce canvas size even more for bevel line join Canvas now precisely fits the shape including stroke, The angle of the shape is ignored for the calculation.
Included in this directory
- browser - Unit/integration tests run in a browser
- node - Unit tests run with Node.js
- rendering - Tests that make assertions about rendered map output
Run the test suite
Install the test dependencies (from the root of the repository):
npm install
Run the tests once:
npm test
This will run tests in Chrome. If you do not have Chrome installed, you can run tests on Firefox instead:
npm test -- --browsers Firefox
To run tests in other browsers, you need to install additional Karma launchers.
To run the tests continuously:
npm run karma
After this, the test server is listening on http://localhost:9876/, and you can attach any number of browsers for testing (during development, tests will run in Chrome by default).
Rendering tests
The test/rendering directory contains rendering tests which compare a rendered map with a
reference image using pixelmatch.
To run the tests in the browser, make sure the development server is running
(make serve) and open the URL
http://localhost:3000/test_rendering/index.html.
From the command-line the tests can be run with the build target make test-rendering.
Adding new tests
When creating a new test case, a reference image has to be created. By appending ?generate
to the URL, a canvas with the rendered map will be shown on the page when calling
expectResemble. Then the reference image can simply be created with a right-click
and "Save image as".
It is recommended to only run a single test case when generating the reference image.
Image difference
When a test fails, an image showing the difference between the reference image and the
rendered map can be displayed by appending ?showdiff to the URL.