mirror of
https://gerrit.wikimedia.org/r/mediawiki/skins/MinervaNeue
synced 2024-12-18 08:40:49 +00:00
95 lines
3.6 KiB
Markdown
95 lines
3.6 KiB
Markdown
# Selenium tests
|
|
|
|
For more information see https://www.mediawiki.org/wiki/Selenium
|
|
|
|
## Setup
|
|
|
|
See https://www.mediawiki.org/wiki/MediaWiki-Docker/MinervaNeue
|
|
|
|
## Run all specs
|
|
|
|
npm run selenium-test
|
|
|
|
## Run specific tests
|
|
|
|
Filter by file name:
|
|
|
|
npm run selenium-test -- --spec tests/selenium/specs/[FILE-NAME]
|
|
|
|
Filter by file name and test name:
|
|
|
|
npm run selenium-test -- --spec tests/selenium/specs/[FILE-NAME] --mochaOpts.grep [TEST-NAME]
|
|
|
|
# Migrating a test from Ruby to Node.js
|
|
|
|
Currently we are in the midst of porting our Ruby tests to Node.js.
|
|
When the tests/browser/features folder is empty, we are done and the whole tests/browser folder can be removed.
|
|
|
|
This is a slow process (porting a single test can take an entire afternoon).
|
|
|
|
## Step 1 - move feature file
|
|
Move the feature you want to port to Node.js
|
|
```
|
|
mv tests/browser/features/<name>.feature tests/selenium/features/
|
|
```
|
|
Example: https://gerrit.wikimedia.org/r/#/c/mediawiki/skins/MinervaNeue/+/501792/1/tests/selenium/features/editor_wikitext_saving.feature
|
|
|
|
## Step 2 - add boilerplate for missing steps
|
|
Run the feature in cucumber
|
|
```
|
|
npm run selenium-test-cucumber -- --spec tests/selenium/features/<name>.feature
|
|
```
|
|
|
|
You will get warnings such as:
|
|
```
|
|
Step "I go to a page that has languages" is not defined. You can ignore this error by setting cucumberOpts.ignoreUndefinedDefinitions as true.
|
|
```
|
|
|
|
For each missing step define them as one liners inside selenium/features/step_definitions/index.js
|
|
|
|
Create functions with empty bodies for each step.
|
|
|
|
Function names should be camel case without space, for example, `I go to a page that has languages` becomes `iGoToAPageThatHasLanguages`. Each function should be imported from a step file inside the features/step_definitions folder.
|
|
|
|
Rerun the test. If done correctly this should now pass.
|
|
|
|
Example: https://gerrit.wikimedia.org/r/#/c/mediawiki/skins/MinervaNeue/+/501792/1..2
|
|
|
|
## Step 3 - copy across Ruby function bodies
|
|
|
|
Copy across the body of the Ruby equivalent inside each function body in tests/browser/features/step_definitions as comments.
|
|
|
|
Example: https://gerrit.wikimedia.org/r/#/c/mediawiki/skins/MinervaNeue/+/501792/2..3
|
|
|
|
## Step 4 - rewrite Ruby to Node.js
|
|
|
|
Sadly there is no shortcut here. Reuse as much as you can. Work with the knowledge that the parts you are adding will aid the next browser test migration.
|
|
|
|
The docs are your friend: http://v4.webdriver.io/api/utility/waitForVisible.html
|
|
|
|
Example: https://gerrit.wikimedia.org/r/#/c/mediawiki/skins/MinervaNeue/+/501792/2..4
|
|
|
|
## Step 5 - Make it work without Cucumber
|
|
|
|
Now the tests should be passing when run the browser tests using wdio.conf.cucumber.js or `npm run selenium-test-cucumber`
|
|
|
|
The final step involves making these run with
|
|
`npm run selenium-test`
|
|
|
|
This is relatively straightforward and mechanical.
|
|
|
|
1) Copy the feature file to the specs folder
|
|
```
|
|
cp tests/selenium/features/editor_wikitext_saving.feature tests/selenium/specs/editor_wikitext_saving.js
|
|
```
|
|
2) Convert indents to tabs
|
|
3) Add `//` before any tags
|
|
4) Replace `Scenario: <name>` with `it( '<name>', () => {`
|
|
5) Add closing braces for all scenarios: ` } );`
|
|
6) Replace `Feature: <feature>` with `describe('<feature>)', () => {` and add closing brace.
|
|
7) Replace `Background:` with `beforeEach( () => {` and add closing brace.
|
|
8) Find and replace `Given `, `When `, `And `, `Then ` with empty strings.
|
|
9) At top of file copy and paste imports from `selenium/features/step_definitions/index.js` to top of your new file and rewrite their paths.
|
|
10) Relying on autocomplete (VisualStudio Code works great) replace all the lines with the imports
|
|
11) Drop unused imports from the file.
|