mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-29 03:13:40 +01:00
69 lines
1.9 KiB
Markdown
69 lines
1.9 KiB
Markdown
## Automatic testing
|
|
|
|
Automatic tests go in the `test/` subfolder of your component's directory. They will be found and run by
|
|
“web-test-runner”.
|
|
Tests are written using
|
|
|
|
* Mocha (https://mochajs.org/) & Chai Assertion Library (https://www.chaijs.com/api/assert/)
|
|
* Playwright (https://playwright.dev/docs/intro) runs the tests in actual browsers.
|
|
|
|
Here's a simple example:
|
|
|
|
```ts
|
|
/**
|
|
* Test file for Etemplate webComponent Textbox
|
|
*/
|
|
import {assert, fixture, html} from '@open-wc/testing';
|
|
import {Et2Textbox} from "../Et2Textbox";
|
|
import {inputBasicTests} from "../../Et2InputWidget/test/InputBasicTests";
|
|
|
|
// Reference to component under test
|
|
let element : Et2Textbox;
|
|
|
|
async function before()
|
|
{
|
|
// Create an element to test with, and wait until it's ready
|
|
element = await fixture<Et2Textbox>(html`
|
|
<et2-textbox></et2-textbox>
|
|
`);
|
|
return element;
|
|
}
|
|
|
|
describe("Textbox widget", () =>
|
|
{
|
|
// Setup run before each test
|
|
beforeEach(before);
|
|
|
|
it('is defined', () =>
|
|
{
|
|
assert.instanceOf(element, Et2Textbox);
|
|
});
|
|
|
|
it('has a label', () =>
|
|
{
|
|
element.set_label("Yay label");
|
|
assert.isEmpty(element.shadowRoot.querySelectorAll('.et2_label'));
|
|
})
|
|
});
|
|
|
|
// Run some common, basic tests for inputs (readonly, value, etc.)
|
|
inputBasicTests(before, "I'm a good test value", "input");
|
|
```
|
|
|
|
This verifies that the component can be loaded and created. `inputBasicTests()` checks readonly and in/out values.
|
|
|
|
### What to test
|
|
|
|
#### Can the component be loaded and created?
|
|
|
|
Quite often components get accidental dependencies that complicate things, but sometimes they just break.
|
|
|
|
#### Value in = value out
|
|
|
|
Many of our components do correction and coercion on bad data or invalid values, but you should test that values out
|
|
match
|
|
the values going in. How to do this, and what to do with bad values, depends on the component.
|
|
|
|
### Test tips
|
|
|
|
* Always use `this.egw()`. It can be easily stubbed for your test. Global `egw` cannot. |