How to validate maximum character check in webdriver/java

Question

I want to validate the maximum character limit of the text field in webdriver/java

• FDM: The maxlength attribute of HTML elements? Or is it imposed via javascript?
• Shanmuga Raj: HTML Element FDM
• FDM: In that case: driver.findElement(By.Id("test")).getAttribute("maxlength") will give you the maxlength value, which you can check against whatever variable you need to
• Shanmuga Raj: FDM, I wanna insert max character(not manually) and check whether the alert is populating for maximum character..
• FDM: Provide the source code on what type of alert the page displays, thanks.

Answer 1

If you have some input fields, most likely you also have some limitations related to max. number of chars which user can enter there.

Let's say you have text input field which allows user to enter up to (and inclusive) 255 chars. In this case simplified test scenarios will be:

1. User enters any number of valid chars (the number of chars should be <255) -> no error message should be shown next to input field
2. User enters 255 valid chards to input field -> no error message should be shown next to input field
3. User enters any number of valid chars (the number of chars should be>255) -> appropriate error message should be shown next to input field.

You can pretty easilly implement those scenario using webdriver and java.

For all 3 scenarios you have to implement additional method which will generate random string of specific lenght. You can find here some examples of such methods.

• Shanmuga Raj: hi Viktor Malyi, thanks for the answer, in my case the maxlength character is 154, how can i check for the character limit(153,154,155), can u please provide the code.....thanks in advance
• Viktor Malyi: Just follow the link at the end of my answer. I've changed it in order to point out at example with java code
• FDM: @ViktorMalyi how about the basic scenario where the maxlength attribute blocks any excess characters? In this case, you would try to enter 300 characters but only 255 are actually present as value.