Problem/Motivation

For javascript testing states and similar functionality it could be helpful to have assertions that check whether a certain form element or element is visible.
On the other hand, adding an infinite amount of assertions makes it harder to choose from, and also doesn't teach people, how to leverage the underlying APIs.

Proposed resolution

Discuss to which level of detail we want to add assertions and helpers.

Remaining tasks

User interface changes

API changes

Data model changes

Comments

dawehner created an issue. See original summary.

jibran’s picture

jibran
he/him
Primary language Urdu
Location Sydney, Australia
CreditAttribution: jibran as a volunteer commented
Title: Add assertions for form elements visibility » Add assertions for javascript testing
Issue summary: View changes

On the other hand, adding an infinite amount of assertions makes it harder to choose from, and also doesn't teach people, how to leverage the underlying APIs.

We had infinite amount of assertions in simpletests and we never ran into this problem there but that is not the point here.
I want us to move on from web test base approach in which we simulate request and response and then on that simulated results we perform some assertions.
I want us to adapt behaviour driven approach in which we test the behaviour of a user not the request and response simulation. Now that we have been running tests using headless browser we can achieve that easily but we have to change our mind set for this. The benefits of this apporoch can be seen in #2711963: Modernized ToolbarIntegrationTest. It improved the readability but the most important thing here is that it improved the adaption of JTB in contrib. I have seen many patches in contrib following this pattern now.
I think by adding the following methods:

+  public function assertFieldVisible($locator, TraversableElement $container = NULL) {
...
+  public function assertFieldNotVisible($locator, TraversableElement $container = NULL) {
...
+  public function assertFieldsetVisible($locator, TraversableElement $container = NULL) {
...
+  public function assertFieldsetNotVisible($locator, TraversableElement $container = NULL) {
...
+  public function assertElementVisible($selector_type, $selector, ElementInterface $container = NULL) {
...
+  public function assertElementNotVisible($selector_type, $selector, ElementInterface $container = NULL) {

we'll improve the readability, adaption and usage of JTB. This well lessen the steepness of test writing learning curve as well.

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idebr’s picture

idebr CreditAttribution: idebr at iO commented

Can this be closed as a duplicate of #2702233: [backport] Add JavaScript tests for Form API #states: required, visible, invisible, expanded, checked, unchecked, since that patch contains the assertions mentioned in #2?

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