Slow when nativeWebTap is enabled and an implicit wait time is set

The problem

I noticed that my automated tests ran very slow once I enabled nativeWebTab. I’m running automated test for a website/webapp on mobile Safari. It looks like the time is spent waiting to check wether the ‘app download’ banner is present (“Close app download offer”)

Environment

• Appium version (or git revision) that exhibits the issue: 1.20.0-beta.0
• Last Appium version that did not exhibit the issue (if applicable): -
• Desktop OS/version used to run Appium: macOS 11.1
• Node.js version (unless using Appium.app|exe): v10.22.1
• Npm or Yarn package manager: npm
• Mobile platform/version under test: iOS 14
• Real device or emulator/simulator: real device
• Appium CLI or Appium.app|exe: Appium CLI

Details

From what I can tell, the full implicit wait time is used when no app download banner can be found. I base this on what I see happening in the logs:

2021-01-04 08:43:38:595 - [debug] [WD Proxy] Got response with status 200: {"value":[],"sessionId":"9E85DB0D-FBA7-402E-B61F-4E3CAB095BF1"}
2021-01-04 08:43:38:595 - [debug] [BaseDriver] Waited for 92 ms so far
2021-01-04 08:43:39:104 - [debug] [WD Proxy] Matched '/elements' to command name 'findElements'
2021-01-04 08:43:39:104 - [debug] [WD Proxy] Proxying [POST /elements] to [POST http://127.0.0.1:8100/session/9E85DB0D-FBA7-402E-B61F-4E3CAB095BF1/elements] with body: {"using":"accessibility id","value":"Close app download offer"}
2021-01-04 08:43:39:224 - [debug] [WD Proxy] Got response with status 200: {"value":[],"sessionId":"9E85DB0D-FBA7-402E-B61F-4E3CAB095BF1"}
2021-01-04 08:43:39:224 - [debug] [BaseDriver] Waited for 721 ms so far
2021-01-04 08:43:39:728 - [debug] [WD Proxy] Matched '/elements' to command name 'findElements'
2021-01-04 08:43:39:728 - [debug] [WD Proxy] Proxying [POST /elements] to [POST http://127.0.0.1:8100/session/9E85DB0D-FBA7-402E-B61F-4E3CAB095BF1/elements] with body: {"using":"accessibility id","value":"Close app d

The above is repeated until the implicit wait time has been reached. When I set implicit wait to 0 I see only a single /elements call and tests run a lot faster

Relevant code section: https://github.com/appium/appium-xcuitest-driver/commit/0f0def5f83fd074a5e146f0a6adc22cac38e6105#diff-25755c8ae7a2cf33e8a411451653876ea735824b8f66498da73b865b41fed129R91

Link to Appium logs

https://gist.github.com/felixhageloh/e4bf58473cdfec71d0965174e9661fd5

Code To Reproduce Issue [ Good To Have ]

RSpec setup

spec_helper.rb

require 'rubygems'
require 'appium_lib'
require './action_helpers'

opts = {
  caps: {
    platformName: 'iOS',
    platformVersion: '14',
    automationName: 'XCUITest',
    browserName: 'Safari',
    udid: 'XXXXXXX-XXXXXXXXXX',
    deviceName: 'iPhone',
    nativeWebTap: true,

    xcodeOrgId: 'XXXXXXXX',
    xcodeSigningId: 'iPhone Developer'
  },
  appium_lib: {
    wait_timeout: 1
  }
}

RSpec.configure do |config|
  config.include ActionHelpers

  config.before(:suite) do
    @driver = Appium::Driver.new(opts, true).start_driver
    @driver.manage.timeouts.implicit_wait = 5
    Appium.promote_appium_methods RSpec::Core::ExampleGroup
  end

  config.after(:all) do
    driver_quit
  end
end

RSpec test code

require './spec_helper'

describe 'mobile reader' do
  it 'works just fine' do
    get('https://view.publitas.com/34rd/island-hopping')
    expect(title).to eq(
      '34rtrth - Island Hopping - Page 1 - Created with Publitas.com'
    )

    swipe(direction: 'left')
    sleep(0.5)
    expect(title).to eq(
      '34rtrth - Island Hopping - Page 2-3 - Created with Publitas.com'
    )

    sleep(1)

    find_element(
      :css,
      "[aria-label='Ancracietgrijze kostuumvest - Sami - slim fit - More info']"
    ).click

    sleep(1)

    expect(title).to eq(
      '34rtrth - Island Hopping - Ancracietgrijze kostuumvest - Sami - slim fit - Created with Publitas.com'
    )

    find_element(:link_text, 'Go to webshop').click
    sleep(5)

    expect(current_url).to eq(
      'https://www.e5mode.be/nl/dansaert-black-ancracietgrijze-kostuumvest-sami-slim-fit-w0db08bs004-5569416?channable=00da03696400353538393735ba#578=13992'
    )

    driver.close

    find_element(:css, '[aria-label="Close"]').click
    sleep(1)
  end
end

[mykola-mokhnach]

Your guess is right: /touch/perform API is not a part of W3C spec, it is a custom Appium stuff, that slowly gets obsolete and deprecated. Safari driver uses /actions API instead.

[KazuCocoa]

Yes, safaridriver should work well… (I hope)

https://github.com/appium/appium-xcuitest-driver/pull/1265 may help