tests: hello world playground run with success and failure tests

[michael-kerscher]

Implement two tests for the rust playground:

• successful run of the hello world example with the hello world message in stdout and a hidden stderr
• on purpose compilation error is shown in stderr and "No output" in stdout

[michael-kerscher]

Tests are failing because the Hello world message is localized.
It is at least great news that this is visible with the tests :)

Checking for only the world icon to be present

[michael-kerscher]

Without localization issues another error class shows.
There are additional issues that don't show in my local runs and also not for all languages:

[0-2] 2024-12-13T15:25:07.756Z WARN webdriver: WebDriverError: javascript error: {"status":60,"value":"[object HTMLButtonElement] has no size and location"}
[0-2]   (Session info: chrome=131.0.6778.139) when running "actions" with method "POST" and args "{"actions":[{"id":"action1","type":"wheel","parameters":{},"actions":[{"type":"scroll","x":-751,"y":978,"deltaX":0,"deltaY":0,"duration":0,"origin":{"element-6066-11e4-a52e-4f735466cecf":"f.173C819DA147237EEEF427DC48FFF96F.d.A21CD0374576D9BD3747C260A5497CB1.e.45"}}]}]}"
[0-1] Error in "Playground.executes the hello world code and prints the hello message"
Error: Expect $(`.ace_content`) to exist

[michael-kerscher]

I looked again into this and it seems I used a not ideal directory for the hello-world page as the "types-and-values" directory does not have this file in e.g. pl translation

$ find comprehensive-rust-* -name "hello-world.html"
comprehensive-rust-en/html/hello-world/hello-world.html
comprehensive-rust-en/html/hello-world.html
comprehensive-rust-en/html/types-and-values/hello-world.html
comprehensive-rust-en/pandoc/pdf/src/hello-world/hello-world.html
comprehensive-rust-pl/html/hello-world/hello-world.html
comprehensive-rust-pl/html/hello-world.html

using the hello-world directory redirection

comprehensive-rust/book.toml

Line 193 in de8ae4f

"hello-world/hello-world.html" = "../types-and-values/hello-world.html"