Module: Calabash::Android::WaitHelpers

Included in:
Operations
Defined in:
lib/calabash-android/wait_helpers.rb

Defined Under Namespace

Classes: WaitError

Constant Summary collapse

DEFAULT_OPTS =

‘post_timeout’ is the time to wait after a wait function returns true

{
    :timeout => 30,
    :retry_frequency => 0.3,
    :post_timeout => 0,
    :timeout_message => 'Timed out waiting...',
    :screenshot_on_error => true
}

Instance Method Summary collapse

Instance Method Details

#handle_error_with_options(ex, timeout_message, screenshot_on_error) ⇒ Object 



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# File 'lib/calabash-android/wait_helpers.rb', line 123

def handle_error_with_options(ex, timeout_message, screenshot_on_error)
  error_class = (ex && ex.class) || RuntimeError
  error = error_class.new(timeout_message || ex.message)

  if screenshot_on_error
    screenshot_and_raise error
  else
    raise error
  end
end

#screenshot_and_retry(msg, &block) ⇒ Object 



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# File 'lib/calabash-android/wait_helpers.rb', line 56

def screenshot_and_retry(msg, &block)
  path  = screenshot
  res = yield
  # Validate after taking screenshot
  if res
    FileUtils.rm_f(path)
    return res
  else
    begin
      embed(path, 'image/png', msg)
    rescue NoMethodError
      attach(path, 'image/png')
    end
    
    raise wait_error(msg)
  end
end

#until_element_does_not_exist(uiquery, opts = {}) ⇒ Object

Performs a lambda action until the element (a query string) disappears. The default action is to do nothing.

Raises an error if no uiquery is specified. Same options as wait_for which are timeout, retry frequency, post_timeout, timeout_message, and screenshot on error.

Example usage: until_element_does_not_exist(“Button”, :action => lambda { swipe(“up”) })



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# File 'lib/calabash-android/wait_helpers.rb', line 164

def until_element_does_not_exist(uiquery, opts = {})
  condition = lambda { element_exists(uiquery) ? false : true }
  extra_opts = { :until => condition, :action => lambda { ; } }
  opts = DEFAULT_OPTS.merge(extra_opts).merge(opts)
  wait_poll(opts) do
    opts[:action].call
  end
end

#until_element_exists(uiquery, opts = {}) ⇒ Object

Performs a lambda action until the element (a query string) appears. The default action is to do nothing.

Raises an error if no uiquery is specified. Same options as wait_for which are timeout, retry frequency, post_timeout, timeout_message, and screenshot on error.

Example usage: until_element_exists(“Button”, :action => lambda { swipe(“up”) })



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# File 'lib/calabash-android/wait_helpers.rb', line 147

def until_element_exists(uiquery, opts = {})
  extra_opts = { :until_exists => uiquery, :action => lambda { ; } }
  opts = DEFAULT_OPTS.merge(extra_opts).merge(opts)
  wait_poll(opts) do
    opts[:action].call
  end
end

#wait_error(msg) ⇒ Object 



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# File 'lib/calabash-android/wait_helpers.rb', line 134

def wait_error(msg)
  (msg.is_a?(String) ? WaitError.new(msg) : msg)
end

#wait_for(options_or_timeout = DEFAULT_OPTS, &block) ⇒ Object 



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# File 'lib/calabash-android/wait_helpers.rb', line 19

def wait_for(options_or_timeout=DEFAULT_OPTS, &block)
  #note Hash is preferred, number acceptable for backwards compat
  default_timeout = DEFAULT_OPTS[:timeout]
  timeout = options_or_timeout || default_timeout
  post_timeout = DEFAULT_OPTS[:post_timeout]
  retry_frequency = DEFAULT_OPTS[:retry_frequency]
  timeout_message = DEFAULT_OPTS[:timeout_message]
  screenshot_on_error = DEFAULT_OPTS[:screenshot_on_error]

  if options_or_timeout.is_a?(Hash)
    timeout = options_or_timeout[:timeout] || default_timeout
    retry_frequency = options_or_timeout[:retry_frequency] || retry_frequency
    post_timeout = options_or_timeout[:post_timeout] || post_timeout
    timeout_message = options_or_timeout[:timeout_message]
    if options_or_timeout.key?(:screenshot_on_error)
      screenshot_on_error = options_or_timeout[:screenshot_on_error]
    end
  end

  begin
    Timeout::timeout(timeout, WaitError) do
      sleep(retry_frequency) until yield
    end
    sleep(post_timeout) if post_timeout > 0
  rescue WaitError => e
    msg = timeout_message || e
    if screenshot_on_error
      sleep(retry_frequency)
      return screenshot_and_retry(msg, &block)
    else
      raise wait_error(msg)
    end
  rescue => e
    handle_error_with_options(e, nil, screenshot_on_error)
  end
end

#wait_for_activity(activity_name, options = {}) ⇒ Object 



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# File 'lib/calabash-android/wait_helpers.rb', line 201

def wait_for_activity(activity_name, options={})
  wait_for(options) do
    perform_action('get_activity_name')['message'] == activity_name
  end
end

#wait_for_element_does_not_exist(uiquery, options = {}) ⇒ Object

options for wait_for apply



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# File 'lib/calabash-android/wait_helpers.rb', line 108

def wait_for_element_does_not_exist(uiquery, options={})
  wait_for_elements_do_not_exist([uiquery], options)
end

#wait_for_element_exists(uiquery, options = {}) ⇒ Object

options for wait_for apply



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# File 'lib/calabash-android/wait_helpers.rb', line 92

def wait_for_element_exists(uiquery, options={})
  wait_for_elements_exist([uiquery], options)
end

#wait_for_elements_do_not_exist(elements_arr, options = {}) ⇒ Object

options for wait_for apply



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# File 'lib/calabash-android/wait_helpers.rb', line 113

def wait_for_elements_do_not_exist(elements_arr, options={})
  if elements_arr.is_a?(String)
    elements_arr = [elements_arr]
  end
  options[:timeout_message] = options[:timeout_message] || "Timeout waiting for no elements matching: #{elements_arr.join(",")}"
  wait_for(options) do
    elements_arr.none? { |q| element_exists(q) }
  end
end

#wait_for_elements_exist(elements_arr, options = {}) ⇒ Object

options for wait_for apply



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# File 'lib/calabash-android/wait_helpers.rb', line 97

def wait_for_elements_exist(elements_arr, options={})
  if elements_arr.is_a?(String) || elements_arr.is_a?(Symbol)
    elements_arr = [elements_arr.to_s]
  end
  options[:timeout_message] = options[:timeout_message] || "Timeout waiting for elements: #{elements_arr.join(",")}"
  wait_for(options) do
    elements_arr.all? { |q| element_exists(q) }
  end
end

#wait_for_text(text, options = {}) ⇒ Object 



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# File 'lib/calabash-android/wait_helpers.rb', line 193

def wait_for_text(text, options={})
  wait_for_element_exists("* {text CONTAINS[c] '#{text}'}", options)
end

#wait_for_text_to_disappear(text, options = {}) ⇒ Object 



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# File 'lib/calabash-android/wait_helpers.rb', line 197

def wait_for_text_to_disappear(text, options={})
  wait_for_element_does_not_exist("* {text CONTAINS[c] '#{text}'}", options)
end

#wait_poll(opts, &block) ⇒ Object 



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# File 'lib/calabash-android/wait_helpers.rb', line 74

def wait_poll(opts, &block)
  test = opts[:until]
  if test.nil?
    cond = opts[:until_exists]
    raise "Must provide :until or :until_exists" unless cond
    test = lambda { element_exists(cond) }
  end
  wait_for(opts) do
    if test.call()
      true
    else
      yield
      false
    end
  end
end

#when_element_exists(uiquery, opts = {}) ⇒ Object

Performs a lambda action once the element exists. The default behavior is to touch the specified element.

Raises an error if no uiquery is specified. Same options as wait_for which are timeout, retry frequency, post_timeout, timeout_message, and screenshot on error.

Example usage: when_element_exists(“Button”, :timeout => 10)



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# File 'lib/calabash-android/wait_helpers.rb', line 181

def when_element_exists(uiquery, opts = {})
  action = { :action => lambda { touch uiquery } }
  opts = action.merge(opts)
  wait_for_elements_exist([uiquery], opts)

  if opts[:action].parameters.length == 0
    opts[:action].call
  else
    opts[:action].call(uiquery)
  end
end