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page up/down: add test coverage

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webzwo0i 2020-12-28 21:53:08 +01:00 • committed by John McLear
parent af6a699db4
commit db26ea218c
2 changed files with 113 additions and 0 deletions
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61
tests/frontend/helper/methods.js
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@ -236,3 +236,64 @@ helper.clearPad = async () => {
await helper.waitForPromise(helper.padIsEmpty);
await helper.waitForPromise(() => helper.commits.length > commitsBefore);
};
/**
* Scrolls up in the editor
* TODO: is `getSelection` always defined?
*/
helper.pageUp = async () => {
// the caret is in this node
const caretNode = helper.padInner$.document.getSelection().anchorNode;
const event = new helper.padInner$.Event(helper.evtType);
event.which = 33;
helper.padInner$('#innerdocbody').trigger(event);
// return as soon as the selection has changed
await helper.waitForPromise(() => helper.padInner$.document.getSelection().anchorNode !== caretNode);
};
/**
* Scrolls down in the editor
* TODO: is `getSelection` always defined?
*/
helper.pageDown = async () => {
// the caret is in this node
const caretNode = helper.padInner$.document.getSelection().anchorNode;
const event = new helper.padInner$.Event(helper.evtType);
event.which = 34;
helper.padInner$('#innerdocbody').trigger(event);
// return as soon as the selection has changed
await helper.waitForPromise(() => helper.padInner$.document.getSelection().anchorNode !== caretNode);
};
/**
* Gets the line number where the caret is currently in
*
* @returns {number} line number
*/
helper.caretLineNumber = () => {
if (helper.padInner$.document.getSelection()) {
let caretNode = helper.padInner$.document.getSelection().anchorNode;;
let bodyElement = helper.padInner$('body')[0];
// a text node does not have a classList method
if (caretNode.nodeType === 3) {
caretNode = caretNode.parentNode;
}
// find the ace-line that contains the caret
while (!caretNode.classList.contains('ace-line') && caretNode !== bodyElement ) {
caretNode = caretNode.parentNode;
// a text node does not have a classList method
if (caretNode.nodeType === 3) {
caretNode = caretNode.parentNode;
}
}
// find the index of that line in the array of all lines
const lines = helper.linesDiv().map((line) => line[0]);
return lines.indexOf(caretNode) + 1;
}
};