Support ShadowDOM

[occupant23]

WebComponents will become more important within the future.

We already found out that Selenide will have a basic support for ShadowDom starting with version 5.10.0 (They will currently support Chrome and Firefox)

[occupant23]

We are currently in contact with the Selenide dev team and check if their API will fit our needs.

[occupant23]

Create a wiki page to describe the usage of the future Selenide feature.

String shadowHost  = "#shadow-host";

SelenideElement button =  $(shadowCss("#myButton", shadowHost)).click();
button.shouldHave(text("Changed text"));

SelenideElement input =  $(shadowCss("#myButton", shadowHost));
input.shouldHave(attribute(“placeholder”, ”Fill me"));

// TODO add examples with nested shadow doms

[occupant23]

Next steps:

• Create a new project on GitGub "neodymium-showcase" (tell @rschwietzke what you need)
• Build it up from ground up using the neodymium-template
• Create tests against a website using shadow dom (e.g. https://javascript.info/shadow-dom)
• Use the new Selenide (5.10.0) shadow dom feature and build up an example test like above to showcase the usage
• Add a wiki page about shadow dom testing and link the demo project to it

[georgkunze]

@occupant23 Is this finished? Can we close it?