I am trying to count the correct inputs from the user. An input looks like:
m = "<ex=1>test xxxx <ex=1>test xxxxx test <ex=1>"
The tag ex=1 and the word test have to be connected and in this particular order to count as correct. In case of an invalid input, I want to send the user an error message that explains the error.
I tried to do it as written below:
ex_test_size = m.scan(/<ex=1>test/).size # => 2
test_size = m.scan(/test/).size # => 3
ex_size = m.scan(/<ex=1>/).size # => 3
puts "lack of tags(<ex=1>)" if ex_test_size < ex_size
puts "Lack of the word(test)" if ex_test_size < test_size
I believe it can be written in a better way as the way I wrote, I guess, is prone to errors. How can I make sure that all the errors will be found and shown to the user?
You might use negative lookarounds:
#⇒ ["xxx test", "<ex=1>"]
m.scan(/<ex=1>(?!test).{,4}|.{,4}(?<!<ex=1>)test/).map do |msg|
"<ex=1>test expected, #{msg} got"
end.join(', ')
We scan the string for either <ex=1> not followed by test or vice versa. Also, we grab up to 4 characters that violate the rule for the more descriptive message.
Related
I have this ruby method for compressing a string -
def compress_data(data)
output = StringIO.new
gz = Zlib::GzipWriter.new(output)
gz.write(data)
gz.close
compressed_data = output.string
compressed_data
end
When I call this method with the same input, I get different outputs at different times. I am trying to get the byte array for the compressed outputs and compare them.
The output is Different when I run the below -
input = "hello world"
output1 = (compress_data input).bytes.to_a
sleep 1
output2 = (compress_data input).bytes.to_a
if output1 == output2
puts 'Same'
else
puts 'Different'
end
The output is Same when I remove the sleep. Does the compression algorithm have something to do with the current time?
Option 1 - fixed mtime:
Yes. The compression time is stored in the header. You can use the mtime method to set the time to a fixed value, which will resolve your problem:
gz = Zlib::GzipWriter.new(output)
gz.mtime = 1
gz.write(data)
gz.close
Note that the Ruby documentation says that setting mtime to zero will disable the timestamp. I tried it, and it does not work. I also looked at the source code, and it appears this functionality is missing. Seems like a bug. So you have to set it to something else than 0 (but see comments below - it will be fixed in future releases).
Option 2 - skip the header:
Another option is to just skip the header when checking for similar data. The header is 10 bytes long, so to only check the data:
data = compress_data(input).bytes[10..-1]
Note that you do not need to call to_a on bytes. It is already an Array:
String.bytes -> an_array
Returns an array of bytes in str. This is a shorthand for str.each_byte.to_a.
I have a bot that writes my message to a webpage. I want the message to be sent as one paragraph, but with the lines separated by a linebreak. However, when I actually run the code, the bot inputs and enters each line separately, instead of as one paragraph
I've tried messing with the linebreak formatting and string formatting, but the issue persists
reply_messages = []
reply_messages.push([
"FREE BABY AVOCUDDLE - Thank you for your patience!",
"To redeem your FREE avocuddle, just use the LINK IN OUR BIO and ADD TO CART - just cover shipping, no additional charges!",
"Discount AUTOMATICALLY APPLIES! Super simple, no code!",
"If you order another avocuddle in addition, we cover shipping PLUS the free baby avocuddle! :)",
"Feel free to DM us if you need anything!"
].join("\n")+"\n")
.
.
.
while true
browser.get 'https://twitter.com/messages/requests'
sleep 5
request = wait.until {
el = browser.find_element(:css, "[data-testid='conversation']")
el if el.displayed?
}
break if request.nil?
request.click
not_acceptable_link = true
na_link_index = 1
while not_acceptable_link == true
accept_btn = browser.find_element(:xpath, "//*[contains(text(), 'Accept')]")
unless accept_btn.displayed?
request_2 = wait.until {
el = browser.find_elements(:css, "[data-testid='conversation']")[na_link_index]
el if el.displayed?
}
request_2.click
else
not_acceptable_link = false
end
na_link_index += 1
end
accept_btn = browser.find_element(:xpath, "//*[contains(text(), 'Accept')]")
accept_btn.click
sleep 1
reply_input = wait.until {
el = browser.find_element(:css, "[data-testid='dmComposerTextInput']")
el if el.displayed?
}
reply_input.click
reply_input.send_keys(reply_messages)
.
.
.
I would like for the code to output the entire text as one block of text. However, instead, it outputs as separate lines.
Output currently looks like:
FREE BABY AVOCUDDLE - Thank you for your patience!
(enters this into text box)
To redeem your FREE avocuddle, just use the LINK IN OUR BIO and ADD TO CART - just cover shipping, no additional charges!
(enters this into text box)
etc.
Instead I would like for it to send as one message.
I have a function that allow me to generate random password. My function is working well without a puppetmaster. When I tried with a master an error appear when I called the function :
Error 400 on SERVER: bad value for range
Here is my function:
module Puppet::Parser::Functions
newfunction(:get_random_password, :type => :rvalue, :doc => <<-EOS
Returns a random password.
EOS
) do |args|
raise(Puppet::ParseError, "get_random_password(): Wrong number of arguments " +
"given (#{args.size} for 1)") if args.size != 1
specials = ((33..33).to_a + (35..38).to_a + (40..47).to_a + (58..64).to_a + (91..93).to_a + (95..96).to_a + (123..125).to_a).pack('U*').chars.to_a
numbers = (0..9).to_a
alphal = ('a'..'z').to_a
alphau = ('A'..'Z').to_a
length = args[0]
CHARS = (alphal + specials + numbers + alphau)
pwd = CHARS.sort_by { rand }.join[0...length]
return pwd
end
end
The function is called in both case with $pwd = get_random_password(10).
When I specified the length directly in the function to 10 for example. The password is well generated in master mode.
Have you any idea why I can't specify the length value?
It's unclear why this works for puppet apply (if that's what you're insinuating), but the error is most likely a typing issue.
Try
length = args[0].to_i
To my Knowledge,For situations like this I use the puppet generate() function to create the random password and store it in a persistent data store on the master.
For instance,an SQLITE database or something. This way, the password is generated randomly if it does not exist and the same password is used if it does already exist.
It's important to have the resource always be managed, that way if the password is changed on the managed node Puppet will realize this, change it to the value you're managing, and report that it did so.
TOTAL rookie here.
I'm working on customizing a script made by Brett Terpstra - http://brettterpstra.com/2013/11/01/save-pocket-favorites-to-nvalt-with-ifttt-and-hazel/
Mine is a different use: I'd like to save my pinboard bookmarks with a specific tag to a file in dropbox in Markdown.
I feed it a text file such as:
Title: Yesterday is over.
URL: http://www.jonacuff.com/blog/want-to-change-the-world-get-doing/
Tags: 2md, 2wcx, 2pdf
Date: June 20, 2013 at 06:20PM
Image: notused
Excerpt: You can't start the next chapter of your life if you keep re-reading the last one.
And it outputs the markdown file.
Everything works great except when the 'excerpt' (see above) is more than one line. Sometimes it's a couple of paragraphs. When that happens, it stops working. When I hit enter from the command line, it's still waiting for more input.
Here's an example of a file that it doesn't work on:
Title: Talking ’bout my Generation.
URL: http://blog.greglaurie.com/?p=8881
Tags: 2md, 2wcx, 2pdf
Date: June 28, 2013 at 09:46PM
Image: notused
Excerpt: Contrast two men from the 19th century: Max Jukes and Jonathan Edwards.
Max Jukes lived in New York. He did not believe in Christ or in raising his children in the way of the Lord. He refused to take his children to church, even when they asked to go. Of his 1,026 descendants:
•300 were sent to prison for an average term of 13 years
•190 were prostitutes
•680 were admitted alcoholics
His family, thus far, has cost the state in excess of $420,000 and has made no contribution to society.
Jonathan Edwards also lived in New York, at the same time as Jukes. He was known to have studied 13 hours a day and, in spite of his busy schedule of writing, teaching, and pastoring, he made it a habit to come home and spend an hour each day with his children. He also saw to it that his children were in church every Sunday. Of his 929 descendants:
•430 were ministers
•86 became university professors
•13 became university presidents
•75 authored good books
•7 were elected to the United States Congress
•1 was Vice President of the United States
Edwards’ family never cost the state one cent.
We tend to think that our decisions only affect ourselves, but they have ramifications for generations to come.
Here's a screenshot of what it looks like after I run the command: https://www.dropbox.com/s/i9zg483k7nkdp6f/Screenshot%202013-11-22%2016.39.17.png
I'm hoping it's something easy. Any ideas?
#!/usr/bin/env ruby
# Works with IFTTT recipe https://ifttt.com/recipes/125999
#
# Set Hazel to watch the folder you specify in the recipe.
# Make sure nvALT is set to store its notes as individual files.
# Edit the $target_folder variable below to point to your nvALT
# ntoes folder.
require 'date'
require 'open-uri'
require 'net/http'
require 'fileutils'
require 'cgi'
$target_folder = "~/Dropbox/messx/urls2md"
def url_to_markdown(url)
res = Net::HTTP.post_form(URI.parse("http://heckyesmarkdown.com/go/"),{'u'=>url,'read'=>'1'})
if res.code.to_i == 200
res.body
else
false
end
end
file = ARGV[0]
begin
input = IO.read(file).force_encoding('utf-8')
headers = {}
input.each_line {|line|
key, value = line.split(/: /)
headers[key] = value.strip || ""
}
outfile = File.join(File.expand_path($target_folder), headers['Title'].gsub(/["!*?'|]/,'') + ".txt")
date = Time.now.strftime("%Y-%m-%d %H:%M")
date_added = Date.parse(headers['Date']).strftime("%Y-%m-%d %H:%M")
content = "Title: #{headers['Title']}\nDate: #{date}\nDate Added: #{date_added}\nSource: #{headers['URL']}\n"
tags = false
if headers['Tags'].length > 0
tag_arr = header s['Tags'].split(", ")
tag_arr.map! {|tag|
%Q{"#{tag.strip}"}
}
tags = tag_arr.join(" ")
content += "Keywords: #{tags}\n"
end
markdown = url_to_markdown(headers['URL']).force_encoding('utf-8')
if markdown
content += headers['Image'].length > 0 ? "\n\n> #{headers['Excerpt']}\n\n---#{markdown}\n" : "\n\n"+markdown
else
content += headers['Image'].length > 0 ? "\n\n\n\n#{headers['Excerpt']}\n" : "\n\n"+headers['Excerpt']
end
File.open(outfile,'w') {|f|
f.puts content
}
if tags && File.exists?("/usr/local/bin/openmeta")
%x{/usr/local/bin/openmeta -a #{tags} -p "#{outfile}"}
end
# FileUtils.rm(file)
rescue Exception => e
puts e
end
How about this? Modify your input.each_line area accordingly:
headers = {}
key = nil
input.each_line do |line|
match = /^(?<key>\w+)\s*:\s*(?<value>.*)/.match(line)
value = line
if match
key = match[:key].strip
headers[key] = match[:value].strip
else
headers[key] += line
end
end
First, splitting on just ":" is dangerous since that can be in content. Instead, a (simplified from code) regex of /^\w+:.*/ will match "Word: Content". Since the lines after the "Excerpt:" aren't prefixed, you need to hang on to the last seen key, and just append if there's no key for this line. You may need to add a newline in there, depending on what you're doing with that header information, but it seems to work.
Please note: I am new to TDD & cucumber, so the answer may be very easy.
I am creating a basic image editor for a test (the image is just a sequence of letters).
I have written a Cucumber story:
Scenario Outline: edit commands
Given I start the editor
And a 3 x 3 image is created
When I type the command <command>
Then the image should look like <image>
The step
Scenarios: colour single pixel
| command | image |
| L 1 2 C | OOOCOOOOO |
always fails, returning
expected: "OOOCOOOOO"
got: " OOOOOOOO" (using ==) (RSpec::Expectations::ExpectationNotMetError)
This is the step code:
When /^I type the command (.*)$/ do |command|
#editor.exec_cmd(command).should be
end
The function exec_cmd in the program recognizes the command and launches the appropriate action. In this case it will launch the following
def colorize_pixel(x, y, color)
if !#image.nil?
x = x.to_i
y = y.to_i
pos = (y - 1) * #image[:columns] + x
#image[:content].insert(pos, color).slice!(pos - 1)
else
#messenger.puts "There's no image. Create one first!"
end
end
However, this always fails unless I hardcode the values of the two local variables (pos and color) in the function in the program itself.
Why? It doesn's seem I'm doing anything wrong in the program itself: the function does what it's supposed to do and those two variables are only useful locally. So I'd think this is a problem with my use of cucumber. How do I properly test this?
---edit---
def exec_cmd(cmd = nil)
if !cmd.nil?
case cmd.split.first
when "I" then create_image(cmd[1], cmd[2])
when "S" then show_image
when "C" then clear_table
when "L" then colorize_pixel(cmd[1], cmd[2], cmd[3])
else
#messenger.puts "Incorrect command. " + "Commands available: I C L V H F S X."
end
else
#messenger.puts "Please enter a command."
end
end
When /^I type the command (.*)$/ do |command|
#output = #editor.exec_cmd(command)
end
Then /^the image should look like (.)*$/ do |expected_image|
#output.should == expected_image
end
Hope this may help you.
It's not a cucumber issue.
The problem was that, in exec_cmd, split was called only in the "case" clause, not in the "when"s. This meant that, since the command's format was "a 1 2 b", cmd[1] in the "when" would call the second character of the string, a space, not the second value of the array, and the other functions would convert that to_i, returning 0.
I changed exec_cmd like this:
def exec_cmd(cmd = nil)
if !cmd.nil?
cmd = cmd.split
case cmd.first
when "I" then create_image(cmd[1], cmd[2])
[...]
end
which fixed the issue.