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@testim/testim-cli

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Command line interface for running Testing on you CI

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/** * * Wait for an element (selected by css selector) for the provided amount of * milliseconds to be present within the DOM. Returns true if the selector * matches at least one element that exists in the DOM. If the reverse flag * is true, the command will instead return true if the selector does not * match any elements. * * @param {String} selector CSS selector to query * @param {Number=} ms time in ms (default: 500) * @param {Boolean=} reverse if true it instead waits for the selector to not match any elements (default: false) * * @type utility * */ module.exports = function waitForExist(selector, ms, reverse) { /*! * ensure that ms is set properly */ if (typeof ms !== 'number') { ms = this.options.waitforTimeout; } if (typeof reverse !== 'boolean') { reverse = false; } return this.waitUntil(function() { return this.isExisting(selector).then(function(isExisting) { if(Array.isArray(isExisting)) { var result = reverse; for(var i = 0; i < isExisting.length; ++i) { if(!reverse) { result = result || isExisting[i]; } else { result = result && isExisting[i]; } } return result !== reverse; } return isExisting !== reverse; }); }, ms).catch(function(err) { if(err.message === 'Promise never resolved with an truthy value') { throw new Error('element (' + selector + ') still ' + (reverse ? '' : 'not') + ' existing after ' + ms + 'ms'); } else { throw err; } }); };