How to get the selected value of ExtJS combobox through selenium?
Eexecute JS using selenium(How to use JavaScript with Selenium WebDriver Java). In js you can use "Ext.ComponentQuery.query('combo')[0].value" code to get combo value
To get text in dropDown element which is selected you need to iterate through all divs in x-combo-list-inner, gets it class value and if it contains x-combo-selected then return it's text. Not sure about correctness of js but this should look like (i haven't tested this code):
driver.findElement(webdriver.By.css(".x-combo-list-inner")).then(function(parentElement) { return parentElement.findElements(".x-combo-list-item").then(function(innerElements) { return innerElements.forEach(function(elem) { return elem.getAttribute('class').then(function(classValue) { if(classValue.indexOf('x-combo-selected') > -1) { return elem.getText(); } }); }); });});