Error being returned for long_press in python client : {"required":["elements"]} and you sent ["sessionId","element"]

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1

I’m having trouble using long_press in the python client. I hope I’m doing something silly as I’m new to appium. Any help would be appreciated figuring this out.

The error being returned is {“required”:[“elements”]} and you sent [“sessionId”,“element”] for long_press.

Version’s, Caps and imports
appium 1.6.3

from appium import webdriver
from selenium.webdriver.common.touch_actions import TouchActions

desired_caps = {}
desired_caps[‘platformName’] = ‘iOS’
desired_caps[‘platformVersion’] = platformVersion
desired_caps[‘deviceName’] = deviceName
desired_caps[‘udid’] = udid
desired_caps[‘automationName’] = ‘XCUITest’
desired_caps[‘realDeviceLogger’] = ‘idevicesyslog’
desired_caps[‘app’] = os.path.abspath(app_path)
desired_caps[‘xcodeConfigFile’] = ‘/usr/local/lib/node_modules/appium/node_modules/appium-xcuitest-driver/WebDriverAgent/xcodeConfigfile.xcconfig’
desired_caps[‘xcodeSigningId’] = ‘iPhone Developer’
desired_caps[‘newCommandTimeout’] = 10000

Code below is inside a function:
print(“Inside long_press_on_model”)
model = self.driver.find_element_by_id(model_name)

current = self.driver.current_context
print("This is the current driver " + current)

# print("This is the dir of the webElement " + str(dir(model)))
print("this is the model" + str(model)) 
action = Base.TouchActions(self.driver)
action.long_press(model).perform()

Terminal output:
Inside long_press_on_model
This is the current driver NATIVE_APP
this is the model appium.webdriver.webelement.WebElement (session=“e9c97185-1f75-4870-9e73-9818b96d4e82”, element=“2837406B-2D88-4D82-94E0-49C5EE53FF44”)
Traceback (most recent call last):
File “tests/test.py”, line 44, in
myFunc.long_press_on_model(model)
File “page_models/my_test.py”, line 66, in long_press_on_model
action.long_press(model).perform()
File “/usr/local/lib/python2.7/site-packages/selenium/webdriver/common/touch_actions.py”, line 47, in perform
action()
File “/usr/local/lib/python2.7/site-packages/selenium/webdriver/common/touch_actions.py”, line 151, in
Command.LONG_PRESS, {‘element’: on_element.id}))
File “/usr/local/lib/python2.7/site-packages/selenium/webdriver/remote/webdriver.py”, line 236, in execute
self.error_handler.check_response(response)
File “/usr/local/lib/python2.7/site-packages/appium/webdriver/errorhandler.py”, line 29, in check_response
raise wde
selenium.common.exceptions.WebDriverException: Message: Parameters were incorrect. We wanted {“required”:[“elements”]} and you sent [“sessionId”,“element”]

Appium log:
[debug] [MJSONWP] Responding to client with driver.findElement() result: {“ELEMENT”:“2837406B-2D88-4D82-94E0-49C5EE53FF44”,“type”:“XCUIElementTypeStaticText”,“label”:“model”}
[HTTP] <-- POST /wd/hub/session/e9c97185-1f75-4870-9e73-9818b96d4e82/element 200 768 ms - 199
[HTTP] --> GET /wd/hub/session/e9c97185-1f75-4870-9e73-9818b96d4e82/context {}
[debug] [MJSONWP] Calling AppiumDriver.getCurrentContext() with args: [“e9c97185-1f75-4870-9e73-9818b96d4e82”]
[debug] [XCUITest] Executing command ‘getCurrentContext’
[debug] [MJSONWP] Responding to client with driver.getCurrentContext() result: “NATIVE_APP”
[HTTP] <-- GET /wd/hub/session/e9c97185-1f75-4870-9e73-9818b96d4e82/context 200 3 ms - 84
[HTTP] --> POST /wd/hub/session/e9c97185-1f75-4870-9e73-9818b96d4e82/touch/longclick {“sessionId”:“e9c97185-1f75-4870-9e73-9818b96d4e82”,“element”:“2837406B-2D88-4D82-94E0-49C5EE53FF44”}
[debug] [MJSONWP] Bad parameters: BadParametersError: Parameters were incorrect. We wanted {“required”:[“elements”]} and you sent [“sessionId”,“element”]
[HTTP] <-- POST /wd/hub/session/e9c97185-1f75-4870-9e73-9818b96d4e82/touch/longclick 400 2 ms - 99

2

Looks like you are passing an empty string to a method that requires a string.

3

Hi Wreed,

Sorry that was a copy and paste error. Actually this website removed it, guessing it thought is was code/script tags.

Please see Appium logs: [debug] [MJSONWP] Bad parameters: BadParametersError: Parameters were incorrect. We wanted {“required”:[“elements”]} and you sent [“sessionId”,“element”].

I passed in [“sessionId”,“element”] and it wanted {“required”:[“elements”]}. Here is another run :

Inside long_press_on_model
This is the current driver NATIVE_APP
this is the model appium.webdriver.webelement.WebElement (session=“55613931-19a2-4234-b2fe-79037d73aea2”, element=“A35CE8ED-8BB6-458D-983C-EC7412E8A2AE”)
Traceback (most recent call last):
File “tests/test.py”, line 44, in
myTest.long_press_on_model(model)
File “page_models/my_test.py”, line 65, in long_press_on_model
action.long_press(model).perform()
File “/usr/local/lib/python2.7/site-packages/selenium/webdriver/common/touch_actions.py”, line 47, in perform
action()
File “/usr/local/lib/python2.7/site-packages/selenium/webdriver/common/touch_actions.py”, line 151, in
Command.LONG_PRESS, {‘element’: on_element.id}))
File “/usr/local/lib/python2.7/site-packages/selenium/webdriver/remote/webdriver.py”, line 236, in execute
self.error_handler.check_response(response)
File “/usr/local/lib/python2.7/site-packages/appium/webdriver/errorhandler.py”, line 29, in check_response
raise wde
selenium.common.exceptions.WebDriverException: Message: Parameters were incorrect. We wanted {“required”:[“elements”]} and you sent [“sessionId”,“element”]

4

I looked at this again and am changing my reply.

You are getting a return value of this:

And it looks like you need to parse that reply and only return this:

"2837406B-2D88-4D82-94E0-49C5EE53FF44"

And that is what is needed as a parameter to long_press.

5

When I pass it the string of the id I get the following error: AttributeError: ‘unicode’ object has no attribute ‘id’

See below:
model = self.driver.find_element_by_id(model_name)
tmp_arr = [str(model.id)]

File “/usr/local/lib/python2.7/site-packages/selenium/webdriver/common/touch_actions.py”, line 47, in perform
action()
File “/usr/local/lib/python2.7/site-packages/selenium/webdriver/common/touch_actions.py”, line 151, in
Command.LONG_PRESS, {‘element’: on_element.id}))
AttributeError: ‘unicode’ object has no attribute ‘id’

From the api doc its seems long_press is meant to operate on “on_element”. I would have though this is a webelement.
https://seleniumhq.github.io/selenium/docs/api/py/webdriver/selenium.webdriver.common.touch_actions.html#module-selenium.webdriver.common.touch_actions

So when I find the element by the below its returning a webelement.
model = self.driver.find_element_by_id(model_name)

I cant seem to be able to access the element part of the object to pass through. How do I access the element part as an object to pass through?

6

Oh, webelements. I’m actually not sure about those. It’s weird though because your context is clearly ‘NATIVE_APP’. Could it be that you need to switch to ‘WEBVIEW’ to work with this element?

7

Hmmm, this is a native app. I will try and see how that works.

8

So I iterated over driver.contexts to see if WEBVIEW was available and it was not. As this is an ios native APP that seems reasonable.

Any other suggestions?

9

What does this return you:

model = self.driver.find_element_by_name(model_name)

10

The element is not named so that’s why I’m using the id. Could I ask why you would like me to use “model = self.driver.find_element_by_name(model_name)” as this also returns a webelement?

Am I missing something here?

https://seleniumhq.github.io/selenium/docs/api/py/webdriver/selenium.webdriver.common.touch_actions.html#module-selenium.webdriver.common.touch_actions

11

Sure, I looked at what is returned in the logs:

[debug] [MJSONWP] Responding to client with driver.findElement() result: {"ELEMENT":"2837406B-2D88-4D82-94E0-49C5EE53FF44","type":"XCUIElementTypeStaticText","label":"model"}

We can see that it has a label, called ‘model’. Most of the time when I’m working with an element like that the ‘label’ and ‘name’ are interchangeable. You are saying that it does return a webelement so it sounds like it worked but did not return the correct object you’d like to use as a parameter for the long press. Sometimes troubleshooting is taking a chance or 2. Sorry it didn’t work.

12

Thanks for you help. I appreciate the time and effort you have contributed to this issue.