ruby,google-chrome,selenium,selenium-webdriver,selenium-chromedriver , Cannot assign an inst variable in Switch “--user-data-dir” in Selenium Wedriver Chrome

## Question:

I have the following code and i want to create a user Directory with the name 'mydir' where chrome should output console logs, but wat happens is it creates a directory #{dir} instead. I also tried using CONST Variables still the same result. Can some help me out?

require "selenium-webdriver"
class MyClass
dir='mydir'
@driver = Selenium::WebDriver.for :chrome, :switches => %w[--ignore-certificate-errors --user-data-dir=#{dir} --enable-logging]
end


The %w literal is similar to using single quotes for Strings. There is no interpolation. As a result, the --user-data-dir is exactly what was typed - "#{dir}". To enable interpolation, you need to use a capital W - ie %W:

You can see the difference with:

dir = 'mydir'

# Without interpolation
p %w[--user-data-dir=#{dir}]
#=> ["--user-data-dir=\#{dir}"]

# With interpolation
p %W[--user-data-dir=#{dir}]
#=> ["--user-data-dir=mydir"]


In the end, your script would become:

require "selenium-webdriver"
class MyClass
dir='mydir'
@driver = Selenium::WebDriver.for :chrome, :switches => %W[--ignore-certificate-errors --user-data-dir=#{dir} --enable-logging]


# Related:

## Saying there are 0 arguments when I have 2? Trying to open a CSV file to write into

ruby,file,csv,dir
I'm trying to read from a CSV file and codify people into groups using an equation. I append the name of their group they fall into to the end of the array that their row creates. Then I write it to a new file so I don't overwrite the original...

## Ruby gsub group parameters do not work when preceded by escaped slashes

ruby,regex
I am trying to perform a trivial substitution, that in any other language I have come across, work as per the documentation. However, my substitution fails for some reason. The documentation examples list: "hello".gsub(/[aeiou]/, '*') #=> "h*ll*" "hello".gsub(/([aeiou])/, '<\1>') #=> "h<e>ll<o>" "hello".gsub(/./) {|s| s.ord.to_s + ' '} #=> "104 101...

## On rendering from controller, current_page method does not seem to work

ruby-on-rails,ruby,ruby-on-rails-4,model-view-controller
I have a navigation bar included in application.html.erb. Because for some pages, such as the signup page, I need to place additional code inside the navigation bar, I have excluded those pages for showing the navigation bar through application.html.erb and instead included it in their respective view pages. See code...

## String#scan not capturing all occurences

ruby,regex
I'm facing a very strange behaviour with ruby String#scan method return. I have this code below and I can't find out why "scan" doesn't return 2 elements. str = "10011011001" regexp = "0110" p str.scan(/(#{regexp})/) ==> [["0110"]] String "str" clearly contains 2 occurences of pattern "0110". I want to fetch...

## Get X days out of an Array

ruby,ruby-on-rails-4
I have an array filled with Datetime objects: [Mon, 22 Jun 2015, Tue, 23 Jun 2015, Wed, 24 Jun 2015, Thu, 25 Jun 2015, Fri, 26 Jun 2015, Sat, 27 Jun 2015, Sun, 28 Jun 2015] I know how to select what I want from the array ex: week.select{|x|x.monday? ||...

## Rails basic auth not working properly

ruby-on-rails,ruby,authentication
I am building a small API that uses basic authentication. What I have done, is that a user can generate a username and password, that could be used to authenticate to the API. However I have discovered that it is not working 100% as intended. It appears that a request...

ruby

## Call method to generate arguments in ruby works in 1.8.7 but not 1.9.3

ruby-on-rails,ruby,ruby-1.9.3
This is something that I had working in ruby 1.8.7, but no longer works in 1.9.3, and I am not sure what changes make this fail. Previously, I had something like this myFunction(submitArgs()) where submitArgs was a helper method that could be called with some options def submitArgs(args={}) #Some logic/manipulations...

## How to pivot array into another array in Ruby

arrays,ruby,csv
I have a multidimensional array like this one : myArray = [["Alaska","Rain","3"],["Alaska","Snow","4"],["Alabama","Snow","2"],["Alabama","Hail","1"]] I would like to end up with CSV output like this. State,Snow,Rain,Hail Alaska,4,3,nil Alabama,2,nil,1 I know that to get this outputted to CSV the way I want it I have to have output array like this: outputArray =[["State","Snow","Rain","Hail"],["Alaska",4,3,nil],["Alabama",2,nil,1]]...

## Ruby: How to copy the multidimensional array in new array?

ruby-on-rails,arrays,ruby,multidimensional-array
seating_arrangement [ [:first, :second, :none], [:first, :none, :second], [:second, :second, :first], ] I need to copy this array into new array. I tried to do it by following code: class Simulator @@current_state def initialize(seating_arrangement) @@current_state = seating_arrangement.dup end But whenever I am making any changes to seating_arrangement current_state changes automatically....

## rails - NameError (undefined local variable or method while using has_many :through

ruby-on-rails,ruby,ruby-on-rails-4
My rails app gives following error: NameError (undefined local variable or method 'fac_allocs' for #): app/models/room.rb:4:in '' app/models/room.rb:1:in '' app/controllers/rooms_controller.rb:3:in 'index' room.rb file class Room < ActiveRecord::Base has_many :bookings has_many :fac_allocs has_many :facs, :through => fac_allocs end ...

## regex to pull in number with decimal or comma

ruby,regex
This is my line of code: col_value = line_item[column].scan(/\d+./).join().to_i When I enter 30,000 into the textfield, col_value is 30. I want it to bring in any number: 30,000 30.5 30.55 30000 Any of these are valid... Is there a problem with the scan and or join which would cause it...

## Can't map a range of dates in Ruby/Rails

ruby-on-rails,ruby
I'm trying to map a range of dates and pass them to my view as an array, as follows: from, to = Date.parse("2014-01-01"), Date.yesterday date_range = (from..to) @mapped_dates = date_range.map {|date| date.strftime("%b %e")} I reference them in some JS in my view as follows: dateLabels = <%= raw @mapped_dates.to_json %>;...

## for of loop querySelectorAll

Mozilla states that "for of loops will loop over NodeList objects correctly". (source: https://developer.mozilla.org/en-US/docs/Web/API/NodeList) However, this doesn't work in Chrome 43. Is this incorrect documentation or a browser bug? The copied example code used on a page with checkboxes: var list = document.querySelectorAll( 'input[type=checkbox]' ); for (var item of list)...

## How to handle backslash “\” escape characters in q string and heredocument

ruby
Ruby Newbie here. I do not understand why Ruby looks inside %q and escapes the \. I am using Ruby to generate Latex code. I need to generate \\\hline which is used in Latex for table making. I found \\\hline as input generated \hline even though the string was inside...

## Get the actual value of a boolean attribute

ruby,page-object-gem,rspec3,rspec-expectations
I have the span: <span disabled="disabled">Edit Member</span> When I try to get the value of the disabled attribute: page.in_iframe(:id => 'MembersAreaFrame') do |frame| expect(page.span_element(:xpath => "//span[text()='Edit Member']", :frame => frame).attribute('disabled')).to eq("disabled") end I get: expected: "disabled" got: "true" How do I get the value of specified attribute instead of a...

## php redirection working in chorme but not on firefox

Below is my php code that caries out the redirection Code Snippet :- echo "<form action='exp_yogesh.php?id=$id' method='post'>"; echo "<td> <input type='image' name='putonline' value='$id' src='images/on_button.png' no-repeat; border:none;' alt='submit'> </td> "; echo "<td> <input type='image' name='putoffline' value='\$id' src='images/off_botton.png' no-repeat; border:none;' alt='submit'> </td> "; echo "</form>"; Here's the exp_yogesh.php file <?php include 'includes/connection.php';...

## Loop until i get correct user

ruby,redis
I have users stored in Redis and want to be able to call only certain subsets from a set, if i don't get the correct user back i want to put it back in the set and then try again until i get one of the desired users @redis =...

## Allowing some enabled and disabled option on collection_select

ruby-on-rails,ruby
I am trying to populate a dropdown box on a view that has all the states. This works just fine: <%= f.collection_select :state_id, @states, :id, :name %> Now, I need to make the following: Some states are going to be disabled for choosing, but they still have to appear on...

## How could I padding spaces to a fix length

ruby
I need all strings' length with 5 Original [477, 4770,] Expected ["477 ", "4770 "] How could I do it with Ruby ?...

## Error when trying to install app with mysql2 gem

mysql,ruby-on-rails,ruby,ruby-on-rails-4
Im trying to install an open source rails 3.2.21 application that uses the mysql2 gem, but when i try and run the bundle commant I get the following error: Fetching: mysql2-0.3.18.gem (100%) Building native extensions. This could take a while... p ERROR: Error installing mysql2: ERROR: Failed to build gem...

## Iterating over EncryptedDataBagItem in Chef Recipe

ruby,json,chef,devops
I would like to decrypt a chef data bag item (named passwords) and store all of its attributes in a temporary JSON file which is read (and then deleted) by a node.js app. Is there a way to iterate over attributes of a data bag ITEM and get their values?...