Flaky end-to-end tests

[supakeen]

The end-to-end tests sometimes (seems to be about half the time?) fail on verifying that the randomly pasted text is the same. There seems to be some interpretation going on of the random text somewhere in the stack which leads to whitespace characters being eaten.

[shtlrs]

E2E tests such as these have a tendency to become flaky with all the overhead that comes with the browser api, etc.

Aside from trying to stabilize tests, a second good approach would be to allow retrying a test up until a certain number, usually 2 or 3, until the test passes. Since the execution of multiple tests side by side can act as a parasite for each other.

[supakeen]

@shtlrs @nekhvoya and I took a look at this and it has to do with pinnwand stripping leading/trailing whitespace and pinnwand keeping indent levels when the python-lexer is selected.

[supakeen]

Resolved in #240.