* don't include sendkeys in index.html as it's included in helper.init
mocha opts: add default timeout and replace ignoreLeaks with checkLeaks,
as the former is deprecated
* introduce helper.edit to write to a pad
* add test to check if helper.edit() supports line numbers
* helper tests: waitFor/waitForPromise seem to be a little bit faster sometimes
* tests: refactor chat.js
* tests: refactor timeslider_numeric_padID
* tests: refactor timeslider_labels
* tests: refactor timeslider_follow
* ensure followContents is enabled, although it should be by default
* timeslider_follow: increase number of revision for Edge
* make textLines() depend on linesDiv()
Co-authored-by: Richard Hansen <rhansen@rhansen.org>
* make linesDiv return standard Array
* use `contain` instead of `indexOf`
* more fixes from the review
* review fixes
* align waitFor and waitForPromise behaviour
* timeslider_follow: check if it's following to the correct lines
* lower expected waitFor/waitForPromise interval check
* disable responsivness and regression test in timeslider_follow
* timeslider_follow: fix Range detection
* more explicit test for linesDiv
Co-authored-by: Richard Hansen <rhansen@rhansen.org>
* Avoid a false positive if a Promise that is expected to reject
doesn't reject.
* Use modern JavaScript language features: arrow functions,
`const`/`let` instead of `var`.
* Remove the tests that test Promise behavior.
* Add new test that checks that it returns a Promise.
There are a few problems with sleeping before checking the condition
for the first time:
* It slows down tests.
* The predicate is never checked if the interval duration is greater
than the timeout.
* 0 can't be used to test if the condition is currently true.
There is a minor disadvantage to sleeping before checking: It will
cause more tests to run without an asynchronous interruption, which
could theoretically mask some async bugs.
The `helper.waitFor()` function returns a jQuery Deferred object.
Deferred objects are supposed to have a `.fail()` method that is
chainable (it should return `this`). Before this change,
`helper.waitFor()` monkey-patched the `.fail()` method with a function
that returned `undefined`. Now the monkey-patched `.fail()` returns
the Deferred object.
Also modernize the code a bit.
