Protractor expected condition for element containing any text

问题

Is there a way how to check whether an element has any text in it? I already found textToBePresentInElement but this function checks for specified value and does not return a proper error if it fails.

I'm population the element via API and it's loaded bit later, so I want the browser to wait till any information appears in the element and then check for correct value.

Alternatively it would be also very helpful to manage to get a specific error message when EC fails:

browser.wait(EC.textToBePresentInElement(element(by.binding('myvar')), "expected"), 5000);

回答1:

The third argument to browser.wait() is a custom error message:

browser.wait(EC.textToBePresentInElement(element(by.binding('myvar')), "expected"), 5000, "Text is not something I've expected");

See also:

Custom message on wait timeout error

To wait for an element to contain any text, you can write a custom expected condition:

var EC = protractor.ExpectedConditions;

var anyTextToBePresentInElement = function(elementFinder) {
  var hasText = function() {
    return elementFinder.getText().then(function(actualText) {
      return actualText;
    });
  };
  return EC.and(EC.presenceOf(elementFinder), hasText);
};

And here is the usage:

browser.wait(anyTextToBePresentInElement(element(by.binding('myvar'))), 5000);

回答2:

The previous code snippet works form but with a small update: return actualText; should be boolean. So the whole code will be:

var anyTextToBePresentInElement = function(elementFinder) {
  var EC = protractor.ExpectedConditions;
  var hasText = function() {
    return elementFinder.getText().then(function(actualText) {
      return !!actualText;
    });
  };
  return EC.and(EC.presenceOf(elementFinder), hasText);
};

Usage example:

var el = element(by.binding('myvar'));
browser.wait(anyTextToBePresentInElement(el, 5000, 'Element still has no text');

来源：https://stackoverflow.com/questions/30219643/protractor-expected-condition-for-element-containing-any-text

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angularjs

testing

selenium

protractor

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