Get index attribute of element

Support
1

I have an issue where I need to get the index attribute of a parent node based on its child. The situation is a chat screen where I need to get the chat buble’s index based on the message content.

What I have so far is this:

	public String chatBubbleIndexByMessage(String message) {
		String xpath = "//*[@resource-id='com.chat:id/msg_content' and @text='Message #1']/../../../..";
		Locator bubbleIndexLocator = Locator.xpath(xpath);
		String bubbleIndex = driver.getElement(bubbleIndexLocator).getAttribute("index");
		return bubbleIndex;
	}

Where I find the text of the message (“Message #1”) and go up 4 parents to get to the chat bubble’s node (where the index attribute is). Problem is that the getAttribute method has a list of supported attributes, and it doesn’t include the index one.

Is there some other way to get that index?

2

index is not exposed because it’s an internal field.

Try to look at this problem from the other side. Let say the test wants to verify that a message with text ‘blabla’ is the third one along other messages. Then the fact the following xpath is found would confirm that:

//view[@id="parentView"]/view[@id="message"][3]
3

Thanks for the reply. I adapted your idea to the method and it now iterates over all the chat bubbles checking if the message parameter is equal to the bubble content:

	public int chatBubbleIndexByMessage(String message) {
		int chatBubbleIndex = 1;
		while (chatBubble(chatBubbleIndex).exists()) {
			if (chatBubble(chatBubbleIndex).messageContent().getText().equals(message)) {
				return chatBubbleIndex;
			}
			chatBubbleIndex++;
		}
		return -1;
	}

It takes a few seconds to execute, but gets the work done.

4

It takes a few seconds to execute, but gets the work done.

This is suboptimal. Try to do as little requests to the server as possible. The code below could be reduced to a single locator usage:

private static final Function<By, String> bubbleByContent = 
          content -> By.xpath(String.format("//view[@id=\"container\"]/view[@id=\"message\" and @text=\"%s\"]/preceding-sibling::view[@id=\"message\"]", content));

public int chatBubbleIndexByMessage(String message) {
     var siblingsCount = driver.findElements(bubbleByContent.apply(message)).size();
     return siblingsCount > 0 ? siblingsCount + 1 : -1;
}