[7.12] Fixes Cypress flake by adding pipe, click, and should (#92762) #92776
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## Summary We were seeing flake tests with the error messages: ```ts expected '<button.euiButton.euiButton--primary>' to have text 'Install 2 Elastic prebuilt rules ', but the text was 'Install 1 Elastic prebuilt rule ' ``` Running this locally several times I was able to reproduce the flake. I was able to see that the click handler when clicked on the check boxes is not always taking effect for the first check box. A common issue with Cypress is that a lot of page loads and JS activities on pages can add/remove click handlers quickly such as when we are frosting and un-frosting a loading screen. When we try and click on the click handlers for a test and the click handlers are not added yet, we miss one or more and end up with a flake test. Instead we can click as fast as possible using `pipe` and then checking that the check box is clicked before continuing using a `should` Even though the loading screen is done frosting in these tests, the click handler can take one or two milliseconds before they end up being added to the checkboxes. **Analysis** When you have the flake and fail you can scroll in Cypress and pin a point in time and see that indeed we did not get the first checkbox checked even though we had a click. Which makes sense as within a few milliseconds the click handlers are added and we do check the second checkbox: <img width="2083" alt="analysis" src="https://user-images.githubusercontent.com/1151048/109119992-a19d1b80-7702-11eb-882a-c035eba97455.png"> ### Checklist - [x] [Unit or functional tests](https://www.elastic.co/guide/en/kibana/master/development-tests.html) were updated or added to match the most common scenarios
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@elasticmachine merge upstream |
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@elasticmachine merge upstream |
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Backports the following commits to 7.12: