You need to update a lof gems. Make sure you don't have any version constraints in your Gemfile or your bundle update won't do anything!
Upgrade cucumber_priority:
bundle update cucumber_priority
Upgrade spreewald:
bundle update spreewald
Upgrade cucumber_factory:
bundle update cucumber_factory
Upgrade parallel_tests:
bundle update parallel_tests
Even on the latest version, parallel_tests will print some deprecation warnings due to using an older formatter A...
Running rails server will start a local server that you can access via http://localhost:3000.
When you are working on multiple web apps, they will likely set cookies with generic names on localhost. This is annoying, since you will sign out your current user whenever you switch to another app.
A better way is to use our own daho.im service. All daho.im subdomains resolve to your local IP (127.0.0.1). That means you can use a different hostname for different apps, and you will stay logged in in each app:
http://foo-ap...
If you want to make a screenshot of a website that works well in print or on a high-DPI screen (like Apple Retina displays), here is how you can capture a high-resolution screenshot.
You can do this without an addon:
CTRL + and CTRL - so it covers most of the window area. Leave a little padding on the left and right so...This is painful. Consider using Microsoft Office or switching careers. If you need to write < 20 letters consider doing it manually.
So you didn't listen and here it comes:
.ods spreadsheet (.xls, .xlsx, .ods). Use any columns that work for you, but be consistent. I like to use one column for the address, one column for the salutation line.When you print (or print preview) and elements are cut off (e.g. after 1st page, or "randomly") you should check your CSS rules for these:
Is there an element with "display: inline-block" that surrounds your content? Make sure it has "display: block" for printing.
This primarily affects Firefox and Internet Explorer. Chrome seems to be able to handle inline-block elements in most cases.
Does the element itself, or a container, define "overflow: hidden"? Use "overflow: auto" (or maybe "overflow: visible") instead.
Is th...
In most projects I know, Cucumber test suite speed is not an issue. Of course, running 350 features takes its time, but still each test for itself is reasonably fast. There is nothing you can do to fundamentally speed up such a test (of course, you should be using parallel_tests).
However, in projects that go beyond clicking around in a web GUI and checking results, there might be various measures to speed things up. Katapult tests for example could be sped up more than 4 times by re...
When an Rspec example fails, I usually investigate by running that example again using rspec <file:line>. However, this does not work with shared examples, since Rspec doesn't know in which context the shared example should be run.
But there is a different way: You can run the shared example using the -e, --example option. It takes a string value and runs all scenarios containing that substring in their full description.
This allows you to run a single uniquely named example, all examples with
similar names, all the examples in a u...
If you deliver files from a public folder it might be that the Content-Disposition header is not set. That's why the following spreewald step might raise an error:
Then I should get a download with filename "..."
expected: /filename="some.pdf"$/
got: nil (using =~) (RSpec::Expectations::ExpectationNotMetError)
One solution...
Slides for Henning's talk on Sep 21st 2017.
print('script start')
html = get('/foo')
print(html)
print('script end')
Script outputs 'script start', (long delay), '<html>...</html>', 'script end'.
print('script start')
get('foo', done: function(html) {
print(html)
})
print('script end')
Script outputs 'script start', `'...
If you are using PDFKit / wkhtmltopdf, you might as well want to use custom fonts in your stylesheets. Usually this should not be a problem, but at times they include misleading Meta-information that leads to a strange error in the PDF.
BrandonText-Regular and BrandonText-Bold. (With flawed Meta-information)I frequently find myself needing a combination of group_by, count and sort for quick statistics. Here's a method on Enumerable that combines the three:
module Enumerable
def count_by(&block)
list = group_by(&block)
.map { |key, items| [key, items.count] }
.sort_by(&:last)
Hash[list]
end
end
# Returns a Hash of { key => count } pairs (see below)
Just paste that snippet into a Rails console and use #count_by now!
> User.all.co...
Dump this method into your Ruby console to quickly print data in columns. This is helpful for e.g. comparing attributes of a set of Rails records.
def tp(objects, *method_names)
terminal_width = `tput cols`.to_i
cols = objects.count + 1 # Label column
col_width = (terminal_width / cols) - 1 # Column spacing
Array(method_names).map do |method_name|
cells = objects.map{ |o| o.send(method_name).inspect }
cells.unshift(method_name)
puts cells.map{ |cell| cell.to_s.ljust(col_width) }.join ' '
end
nil
end
Usag...
ImageMagick has a command line tool called identify which can read image metadata:
>identify -verbose DSC00136.JPG
Image: DSC00136.JPG
Format: JPEG (Joint Photographic Experts Group JFIF format)
Class: DirectClass
Geometry: 5472x3648+0+0
Resolution: 350x350
Print size: 15.6343x10.4229
Units: PixelsPerInch
Type: TrueColor
Endianess: Undefined
Colorspace: sRGB
Depth: 8-bit
Channel depth:
red: 8-bit
green: 8-bit
blue: 8-bit
Channel statistics:
Red:
min: 0 (0)
max: 255 (1)
mean: 11...
Collection of useful tools in the Chrome JavaScript console.
This is not special to Chrome, but still a clever thing:
document.body.contentEditable=true
You can easily measure the time on the console with named timers:
console.time('myTime'); // Start timer
console.timeEnd('myTime'); // End timer and print the time
Variables $0, $1, ... $n reference the nth-last inspected Element. $0 ...
So you're getting this failure when running bundle install on an older project:
Your Gemfile.lock is corrupt. The following gems are missing from the DEPENDENCIES section: 'archive-tar-minitar' 'hoe' 'rcov'
This happens when you are using a new version of Bundler with a project that was bundled with a very old version of Bundler. For reasons unknown, the Bundler dependency API returns different dependencies for some gems (like ruby-debug or rainpress) than the dependencies found in the downloaded gemspecs. While old versi...
TL;DR Debugging problems with javascript errors in cucumber tests is sometimes easier in the browser. Run the test, stop at the problematic point (with Then pause from Spreewald 1.7+) and open VNC for Firefox.
Features:
Then console step)This method will remove automatically installed packages that no other packages depend on any more. This, of course, includes obsolete kernel versions, with the explicit exception of the currently running kernel, the kernel version that was installed on the system before that and, of course, the latest updated version of the kernel. However, it will also remove any and all other packages that have been marked as installed automatically but have no other packages depending on them. This could lead to unexpected removal of package...
When building a web application, one is tempted to claim it "done" too early. Make sure you check this list.
Desktops, tablets and mobile devices have all different screen resolutions. Does your design work on each of them?
When testing Ruby code that prints something to the terminal, you can test that output.
Since RSpec 3.0 there is a very convenient way to do that.
Anything that writes to stdout (like puts or print) can be captured like this:
expect { something }.to output("hello\n").to_stdout
Testing stderr works in a similar fashion:
expect { something }.to output("something went wrogn\n").to_stderr
Hint: Use heredoc to test multi-line output.
expect { something }.to output(<<-MESSAGE.strip_heredoc).to_stdout...
Automatically convert bitmap images like JPEGs, GIFs and PNGs to the crisp, clean, scalable vector art of EPS, SVG, and PDF with the world's best auto-tracing software.
It's true, it does a great job.
If you are on a Linux shell and want to open a file with whatever default application is configured for that type, this often works:
xdg-open Quote.odt
xdg-open invoice.pdf
xdg-open index.html
Make an alias so you have a simpler API (like Mac OS): alias open=xdg-open or alias x=xdg-open.
You can choose your "Default applications" via UI in the Ubuntu "Settings" application (gnome-control-center). This is just a very rough setting (e.g. open Photos with Shotwell Viewer).
If a certain file...
The following sums up all connections (ESTABLISHED, TIME_WAIT, FIN_WAIT, etc.) and sorts it:
netstat -n | awk ' $5 ~ /^[0-9]/ {print $5}' | cut -d: -f1 | sort | uniq -c | sort -n
Works on FreeBSD and Linux.
Changes:
@solo will be excluded from parallel runs, and run sequentially in a second run:migrations on Capistrano 3).firefox-version file to set up a test firefox. By default now uses the system Firefox/a test Chrome/whatever and doesn't print warnings any more.geordi deploy --no-migrations (aliased -M): Deploy with `cap ...Ever wondered how you can create a simple table output in bash? You can use the tool column for creating a simple table output.
Column gives you the possibility to indent text accurate to the same level. Pipe output to column -t (maybe configure the delimeter with -s) and see the magic happening.
I needed to separate a list of databases and their corresponding size with a pipe symbol: |
Here is a example list.txt:
DB Size_in_MB
foobar 11011.2
barfoo 4582.9
donkey 4220.8
shoryuken 555.9
hadouken 220.0
k...