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Our UI tests are implemented with selenium. Despite the fact that this tool is really mature, those tests aren't as reproducible as ordinary unit-tests. Here's a list of hints that should help to write stable magnolia ui tests:
| Issue | Potential fix | Remark |
|---|---|---|
| Element cannot be found although it's there | waitUntil methods. | querying |
| for an element (AbstractMagnoliaUITest#getElementByPath(By)) will explicitly try for 5 seconds - if the test triggers a long running action (e.g. activation) this can take even longer so we might have to add an additional, explicit delay | ||
| Element is found although it should be gone | waitUntil methods. | unlike in the case where we check for existence of an element we don't have any implicit or explicit delay here - if the element needs some time to go away (e.g. Overlay fadeout) we have to add an explicit delay. use {{waitUntil(elementIsGone()}} |
| Input field value cannot be queried with xpath | dont use xpath | input[@class = 'classname' and @value = 'form input...'] could be changed to input[@class = 'classname] and use |
| a condition like {{waitUntil(attributeToBe(locator, "value", "form input..."))}} to query the input value. | ||
| Form validation fails, even if fields are properly entered | ensure blur / change | after filling an input with sendKeys, one should explicitly blur the field - i.e. click anywhere else - and allow some time for the change event to occur. Only then, pressing 'save changes' will be properly aware of the modifications. |
| Getting another element instead of the expected one | scope XPath queries | making dead simple queries like //input[@class='v-textfield'] should be carefully considered, there may be more elements of same kind (inputs, buttons) currently loaded in the UI. Try to scope selectors at least to subApp level. |
| Querying for descendent elements | use .// XPath prefix | invoking parent.findElement(By.xpath("//something")) doesn't query only for sub-elements of parent. To evaluate an XPath expression relative to parent WebElement, one needs to use the .// prefix instead. |
If you find it hard to create XPath queries, you might find the following helpful:
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