etherpad-lite/tests/frontend/specs/keystroke_delete.js

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describe("delete keystroke", function(){
//create a new pad before each test run
beforeEach(function(cb){
testHelper.newPad(cb);
});
it("makes text delete", function() {
//get the inner iframe
var $inner = testHelper.$getPadInner();
//get the first text element out of the inner iframe
var firstTextElement = $inner.find("div").first();
// get the original length of this element
var elementLength = firstTextElement.html().length;
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// get the original string value minus the last char
var originalTextValue = firstTextElement.text();
originalTextValue = originalTextValue.substring(0, originalTextValue.length -1);
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// simulate key presses to delete content
firstTextElement.sendkeys('{leftarrow}'); // simulate a keypress of the left arrow key
firstTextElement.sendkeys('{del}'); // simulate a keypress of delete
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//ace creates a new dom element when you press a keystroke, so just get the first text element again
var newFirstTextElement = $inner.find("div").first();
// get the new length of this element
var newElementLength = newFirstTextElement.html().length;
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//expect it to be one char less in length
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expect(newElementLength).to.be((elementLength-1));
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//make sure the text has changed correctly
expect(newFirstTextElement.text()).to.eql(originalTextValue);
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});
});