Make 'touch' the default interaction

I have a very simple test that scrolls down on a list of elements and works well when I use the UIAutomator2 driver for Android or XCUITest driver for iOS, but it fails as soon as I switch to the Espresso driver.

For what is worth the app is written on React Native so that might have something to do with the issue I’m seeing, but I still think that since it works on the other two drivers (XCUITest and UIAutomator2) this should work on the Espresso driver as well.

I’m using the Python client and this is a simplified version of my code:

top_element = get_element('top-cell')
bottom_element = get_element('bottom-cell')
actions = TouchAction(driver)
(actions.long_press(bottom_element)
         .move_to(top_element)
         .release()

def get_element(element_id):
        element_ready = expected_conditions.presence_of_element_located(
            (MobileBy.ACCESSIBILITY_ID, element_id))
        return self.wait.until(element_ready)

And these are the relevant Appium Server logs. There are no errors on the logs as you can see, but the app simply doesn’t scroll.

[JSONWP Proxy] Proxying [POST /wd/hub/session/b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29/element/fdf24285-b9c2-4723-9e62-42d9a311b401/click] to [POST http://localhost:8080/session/0c5eb84a-7ec8-491f-b30f-d7b1d429438d/element/fdf24285-b9c2-4723-9e62-42d9a311b401/click] with body: {"id":"fdf24285-b9c2-4723-9e62-42d9a311b401","sessionId":"b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29"}
[JSONWP Proxy] Got response with status 200: {"id":"f95ef160-e24d-4916-bdeb-893af2139dba","sessionId":"0c5eb84a-7ec8-491f-b30f-d7b1d429438d","status":0,"value":null}
[JSONWP Proxy] Replacing sessionId 0c5eb84a-7ec8-491f-b30f-d7b1d429438d with b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29
[HTTP] <-- POST /wd/hub/session/b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29/element/fdf24285-b9c2-4723-9e62-42d9a311b401/click 200 419 ms - 120
[HTTP] 
[HTTP] --> POST /wd/hub/session/b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29/element
[HTTP] {"using":"accessibility id","value":"top-cell","sessionId":"b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29"}
[W3C] Driver proxy active, passing request on via HTTP proxy
[JSONWP Proxy] Matched '/wd/hub/session/b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29/element' to command name 'findElement'
[JSONWP Proxy] Proxying [POST /wd/hub/session/b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29/element] to [POST http://localhost:8080/session/0c5eb84a-7ec8-491f-b30f-d7b1d429438d/element] with body: {"using":"accessibility id","value":"top-cell","sessionId":"b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29"}
[JSONWP Proxy] Got response with status 200: {"id":"62c6e291-5ef1-4543-908c-e301166b3f00","sessionId":"0c5eb84a-7ec8-491f-b30f-d7b1d429438d","status":0,"value":{"ELEMENT":"6be7e18b-e62a-4ec1-8c7c-cb9976845b59"}}
[JSONWP Proxy] Replacing sessionId 0c5eb84a-7ec8-491f-b30f-d7b1d429438d with b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29
[HTTP] <-- POST /wd/hub/session/b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29/element 200 57 ms - 166
[HTTP] 
[HTTP] --> POST /wd/hub/session/b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29/element
[HTTP] {"using":"accessibility id","value":"bottom-cell","sessionId":"b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29"}
[W3C] Driver proxy active, passing request on via HTTP proxy
[JSONWP Proxy] Matched '/wd/hub/session/b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29/element' to command name 'findElement'
[JSONWP Proxy] Proxying [POST /wd/hub/session/b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29/element] to [POST http://localhost:8080/session/0c5eb84a-7ec8-491f-b30f-d7b1d429438d/element] with body: {"using":"accessibility id","value":"bottom-cell","sessionId":"b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29"}
[JSONWP Proxy] Got response with status 200: {"id":"49a5d26d-daa1-4fbb-a796-9887aa8b17c7","sessionId":"0c5eb84a-7ec8-491f-b30f-d7b1d429438d","status":0,"value":{"ELEMENT":"51fd0f10-715c-463a-8259-82f32b0ad454"}}
[JSONWP Proxy] Replacing sessionId 0c5eb84a-7ec8-491f-b30f-d7b1d429438d with b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29
[HTTP] <-- POST /wd/hub/session/b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29/element 200 57 ms - 166
[HTTP] 
[HTTP] --> POST /wd/hub/session/b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29/touch/perform
[HTTP] {"actions":[{"action":"longPress","options":{"element":"51fd0f10-715c-463a-8259-82f32b0ad454","duration":1000}},{"action":"moveTo","options":{"element":"6be7e18b-e62a-4ec1-8c7c-cb9976845b59"}},{"action":"release","options":{}}],"sessionId":"b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29"}
[W3C] Driver proxy active, passing request on via HTTP proxy
[JSONWP Proxy] Matched '/wd/hub/session/b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29/touch/perform' to command name 'performTouch'
[JSONWP Proxy] Proxying [POST /wd/hub/session/b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29/touch/perform] to [POST http://localhost:8080/session/0c5eb84a-7ec8-491f-b30f-d7b1d429438d/touch/perform] with body: {"actions":[{"action":"longPress","options":{"element":"51fd0f10-715c-463a-8259-82f32b0ad454","duration":1000}},{"action":"moveTo","options":{"element":"6be7e18b-e62a-4ec1-8c7c-cb9976845b59"}},{"action":"release","options":{}}],"sessionId":"b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29"}
[JSONWP Proxy] Got response with status 200: {"id":"40ebf152-76eb-40a9-bf33-36f1a99f87a9","sessionId":"0c5eb84a-7ec8-491f-b30f-d7b1d429438d","status":0,"value":null}
[JSONWP Proxy] Replacing sessionId 0c5eb84a-7ec8-491f-b30f-d7b1d429438d with b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29
[HTTP] <-- POST /wd/hub/session/b8d1d506-c81d-4b1c-b4ee-ff7c1a677b29/touch/perform 200 599 ms - 120

[dpgraham]

@juandg Actually I think the issue may be that the element is being rendered but it’s not on the screen. Which the scroll-to behaviour doesn’t work for. So yeah, I would just stick with using the scroll actions.

[juandg]

Pause is mandatory as WDA expects that

@saikrishna321 Thanks for clarifying that’s really helpful.