Tooltips that are delivered through HTML attributes are encoded. Decode entities before checking for their presence.

Capybara:

Then /^there should( not)? be a(n encoded)? tooltip "([^"]*)"$/ do |negate, encoded, tooltip|
  tooltip = HTMLEntities.new.encode(tooltip) if encoded
  Then "I should#{negate} see \"#{tooltip}\" in the HTML"
end

Note

This step uses the htmlentities gem described in another card.

Ma...

Sometimes it might be helpful to have a version history for a gem, e.g. when you want to see if there is a newer Rails 2 version of your currently used gem.

At first you should search your gem at RubyGems. Example: will_paginate version history.

The "Tags" tab at GitHub might be helpful as well.

Ever seen this error when using Graticule?

Numerical argument out of domain - acos

Similarly to the to_sql problem for some edge cases, Graticule::Distance::Spherical.distance (and possibly those of Graticule's other distance computation classes) is subject to Float rounding errors.

This can cause the above error, when the arc cosine of something slightly more than 1.0 is to be computed, e.g. for the (zero) distance b...

Some helpers for poking around at your Capybara driven browser's cookies in integration tests.

Supports Capybara's bundled drivers (rack-test, Selenium Webdriver), and adapters for other drivers may be added.

You can use text-overflow to truncate a text using CSS but it does not fit fancy requirements.

Here is a hack for the special case where you want to truncate one of two strings in one line that can both vary in length, while fully keeping one of them. See this example screenshot where we never want to show an ellipsis for the distance:

![Flexible overflow with optional ellipsis](https://makandracards.com/makandra/5885-a-flexible-overflow-ellipsis/at...

When using Rails to truncate strings, you may end up with strings that are still too long for their container or are not as long as they could be. You can get a prettier result using stylesheets.

The CSS property text-overflow: ellipsis has been around for quite a long time now but since Firefox did not support it for ages, you did not use it. Since Firefox 7 you can!

Note that this only works for single-line texts. If you want to truncate tests across multiple lines, use a JavaScript solution like...

Possible Reason 1: parallel_tests - running more processes than features

If you run old versions of parallel_tests with more processes than you have Cucumber features, you will get errors like this in unexpected places:

This is a bug caused by multiple processes running the same features on the same database.

The bug is fixed in versions 0.6.18+.

Possib...

Consider you have a file that uses improper encoding on special characters. Example: You see the latin1 version "ñ" for the UTF-8 "ñ" but the file itself is stored as UTF-8 (meaning that the UTF-8 bytes are doubly encoded).

You can fix that easily with Vim:

vim broken.file

Now you tell vim that the file's encoding is actually latin1 (you can see what Vim is currently using by saying only :set fileencoding):

:set fileencoding=latin1

Write and reload the file:

:w
:e

All should be good now.

Adjust to your n...

The step definition below lets you say:

 Then I should see a field "Password"
 But I should not see a field "Role"

Here is the step definition:

Then /^I should( not)? see a field "([^"]*)"$/ do |negate, name|
  expectation = negate ? :should_not : :should
  begin
    field = find_field(name)
  rescue Capybara::ElementNotFound
    # In Capybara 0.4+ #find_field raises an error instead of returning nil
  end
  field.send(expectation, be_present)
end

Note that you might have to adapt the step defi...

Most of the JavaScript snippets have code that manipulates the DOM. For that reason dom manipulating javascript code should have been executed after the DOM has loaded completely. That means when the browser has finished HTML parsing and built the DOM tree. At that time, you can manipualte the DOM although not all resources (like images) are fully loaded.

The following snippets show how you can do this with plain JavaScript, jquery or prototype ([dom ready ...

In order to chain greps on log files that are opened via tail -f test.log you have to use the --line-buffered command line option for grep.

Imagine you have the following content in your log file.

# content for log/test.log
test foo
bar
test foo bar baz
bla

Now if you would like to grep for lines that contain foo but not bar, you can use the following command chain:

$ tail -f log/test.log | grep --line-buffered "foo" | grep -v "bar"

Output:
test foo    

The following snippet demonstrates how you could create excel files (with spreadsheet gem) and format columns so that they follow a specific number format like currencies or dates do.

require 'rubygems'
require 'spreadsheet'

Spreadsheet.client_encoding = 'UTF-8'

book = Spreadsheet::Workbook.new
sheet1 = book.create_worksheet :name => 'test'

money_format = Spreadsheet::Format.new :number_format => "#,##0.00 [$€-407]"
date_format = Spreadsheet::Format.new :num...

Views are normally (for good reason) not rendered in controller specs. If you need it to happen, use:

RSpec 1 (Rails 2):

integrate_views

RSpec 2 (Rails 3):

render_views

Note that you can't use that inside it blocks but need to put it in the nesting example group, like this:

    describe '#update' do
      cont...

Code coverage for Ruby 1.9 with a powerful configuration library and automatic merging of coverage across test suites.

Note that rcov won't ever have support for Ruby 1.9, you're supposed to use rcov for 1.8 and simplecov for 1.9.

Use the command geordi migrate to migrate your databases and to prepare them before running tests. The abbrevation geordi m works as well.

• It will run rake db:migrate if parallel_tests does not exist in your Gemfile
• Otherwise it runs b rake db:migrate and then executes b rake parallel:prepare if parallel_tests was found in your Gemfile.

Removing features and merging those changes back can be painful. Here is how it worked for me.\
tl;dr: Before merging back: reinstate reverted features in a temporary branch, then merge that branch.

Scenario

Consider your team has been working on several features in a branch, made many changes over time and thus several commits for each feature.\
Now your client wants you to deploy while there are still stories that were rejected previously and can't be deployed.
...

In cucumber you are able to run features in whatever directory you like. This also includes executing features in subdirectories. There are only some things you have to take care of.

By default, cucumber loads all *.rb files it can find (recursively) within the directory you passed as argument to cucumber.

$ cucumber # defaults to directory "features"
$ cucumber features
$ cucumber my/custom/features/dir

So, if you would like to organize features in subdirectories, you won't have *any problems when running the whole test...

Firefox, Opera and Internet Explorer will repeat elements with position: fixed on every printed page (see attached example).

The internet knows no way to do this in Webkit browsers (Chrome, Safari). These browsers will only render the element on the first printed page.

To make the RSpec matcher of the authorization solution Consul work with Rspec 2.x read the following blog post.

In your Cucumber features you can't really click hidden elements when using Selenium (it does work for a plain Webrat scenario, though).

Unfortunately you need to hack around it, like this:

When /^I press the hidden "([^\"]+)" submit button$/ do |label|
  page.evaluate_script <<-JS
    $('input[type=submit][value="#{label}"]').show().click();
  JS
end

If your button is nested into a container that is hidden this will not do the trick. You need a more complex method to also show surrounding containers:

When /^I pre...

Our rcov:all task for aggregated RSpec/Cucumber coverage was overhauled extensively. Among other things it now works for Rails 2 and 3 and has an option to ignore shared traits.

Code coverage is the ratio of code lines kissed by a test vs. the total number of lines in your source files. This sounds meaningful, but isn't.

Total coverage additionally ignores whitespace and comments when computing the coverage ratio, which is what you want.

When you're getting this error, one possibility is that you've created a select field for an association instead of the associated object's id. Example:

form.select :unit, Unit.for_select

will be expected to deliver a real Unit object, whereas

form.select :unit_id, Unit.for_select

will make Rails typecast the String value from the select field to the unit's ID.

When internationalizing your Rails app, you'll be replacing strings like 'Please enter your name' with t('.name_prompt'). You will be adding keys to your config/locales/*.yml files over and over again. Not to miss any key and place each at the right place is a challenging task.

The gem i18n-tasks has you covered. See its README for a list of things it will do for you.

Note

The i18n-tasks gem does not understand aliases and will duplicate all referenced data when it writes locales. If yo...