I am trying to submit an input(type= button).But I am unable to update the value. Any help is appreciated. I have attached the testcase below for your reference.
I had this problem as well. Sometimes, for whatever reason webdriver didn't click the button. It was able to find the button (it didn't throw a NoSuchElementException and a WebDriverWait didn't help).
The problem with clicking the button twice was that if the first click succeed, the second one would fail (or click the submit button on the next page if it found a match!). My first attempt was to put the second click in a try/except block - this is how I found out about it clicking submit on the next page. XD And it also really slowed down my test when it couldn't find the second button.
I found some good insights at Selenium 2.0b3 IE WebDriver, Click not firing. Basically, I click on a parent element first, which seemingly does nothing. Then I click on the submit button.