I'm running into an issue where my script is failing in random places with:
Error: can't modify frozen String: "Please use text available here - Test jira"
These lines caused the error:
description = "Please use text available here - #{#jira[:url]}"
unless previous_jira.nil?
description << <<~PREVIOUSJIRACREATED
Please close previous jira's:
#{previous_jira}
PREVIOUSJIRACREATED
end
I think it's a pretty simple line and I am not freezeing it on purpose or anything like that. But can't understand why I am getting the error.
I have string interpolation all over my code, and the script started failing randomly at different places. The above code is just one example. I was able to identify a couple of high offenders and placed begin/rescue blocks around them, but I am afraid my code is getting ugly with the rescue blocks all over.
I tried searching, but I only got articles explaining what freeze is and how to dup the object.
I am on Ruby 2.7.0p0.
Related
I usually report the events when it passes or fails like:
Reporter.ReportEvent micPass," Title of the passed Event", " Description of Passed Event"
And
Reporter.ReportEvent micFail," Title of the failed Event", " Description of Failed Event"
Is it a good idea to hard code the line number in the title or description of the event like ?
Reporter.ReportEvent micFail," Test Failed at Line 432 ", " Please check line 432 "
To answer the 2nd part of your question, hard-coding will not be a good idea. If you hard-code the line number and in the future, a few lines get added to the code above that line number, the whole point hard-coding goes in vain as the report will now contain the incorrect-line number(which was hard-coded).
And for the first part, I can understand why you want the line-number to be reported. But I don't think there is any "predefined" way of doing it.
But, you can make your own function to get the line number. Here's an idea that you can implement:
Go to the location where your QTP test is stored. Get the full path of the file script.mts(you can find it inside the Action1 Folder). Also, this path can be constructed dynamically if you have good framework and proper folder structure.
After getting the path, you can open that file(script.mts) as a text stream(using the filesystemobject) in Read only mode.
Now you can traverse through the file line-by-line searching for the text "Reporter.ReportEvent micPass," Title of the passed Event", " Description of Passed Event"". After you have found it, you can easily get the line number and return that from your function to store it in some variable which you can use while reporting.
I have not tried this method myself but would have surely given it a try, If I really needed it.
Hardcoding is not a good idea from an end user perspective. In case it's a regression suite it could be used by a tester who doesn't know how to debug the code or analyze. To get the root cause of the failure through reporting (micPass/micFail) you can further refine your scripts
I made a program that is similar to clearing RAM. However, it always leaves a "Done" message followed by a dotted line after being executed. In addition, if you scroll up, you can see that the program was executed. Is there a way to remove both of these things? If you can't hide the fact that a program was executed, could you suppress the 'Done' message?
I have tried adding ClearHome" and " as the last line of my program, and neither stops the Done message from displaying.
Bonus points if your solution can be contained within the original program.
In a separate program, type the following line of code:
AsmPrgmFDCB00AEC9
Then at the end of the original program, type the following line of code:
Asm(prgmPROGRAMNAME
It is recommended that you test this out first with all programs archived, just running the above line of code alone, in case it fails. Hex codes like that one have been known to fail, and sometimes clears the RAM.
You can also try these other hex codes, but always keep in mind the warning above. My RAM has been cleared by this before, so use caution:
http://tibasicdev.wikidot.com/hexcodes
This works on TI 83 and 84, may be different with other calculator types.
EDIT:
I found a way to do this without an external program, and is much simpler.
Just add the following line of code to the end of your program:
Output(1,1," //no space, just a quote
You may or may not have to add ClrHome before that line of code.
This should prevent the Done message from appearing at the end.
Hope this helps!
Put an empty string at the end of your program, so your last line looks like this:
""
Or this
"
The empty string is stored to ans and will be displayed as a blank line rather than the Done message.
There is also an assembly hexcode to do this without leaving the blank line at the top:
FDCB00AEC9
When run at the end of the program using one of the various methods of running assembly, it will leave you with a blank, fully operational homescreen.
Outputting an empty string will prevent the Done message and also preserve Ans, in case a calling program is expecting to use it.
Output(Y,X,"")
See http://tibasicdev.wikidot.com/output for more details on Output(.
In your situation, run Clear Entries (found under Mem), then scroll up so that the Done message is selected and press Clear to get rid of it.
I've been looking for this answer in the internet for a while and have found other people asking the same thing, even here. So this post will be a presentation of my case and a response to the "solutions" that I have found.
I am such new in Ruby, but for learning purposes I decided to create a gem, here.
I am trying to implement a keyboard navigation to this program, that will allow the user use short-cuts to select what kind of request he want to see. And in the future, arrow navigations, etc.
My problem: I can't find a consistent way to get the keyboard events from the user's console with Ruby.
Solutions that I have tried:
Highline gem: Seems do not support this feature anymore. Anyway it uses the STDIN, keep reading.
STDIN.getch: I need to run it in a parallel loop, because at the same time that the user can use a short-cut, more data can be created and the program needs to show it. And well, I display formated text in the console, (Rails log). When this loop is running, my text lost the all the format.
Curses: Cool but I need to set position(x,y) to display my text every time? It will get confusing.
Here is where I am trying to do it.
You may note that I am using "stty -raw echo" (turns raw off) before show my text and "stty raw -echo" (turns raw on) after. That keeps my text formated.
But my key listener loop is not working. I mean, It works in sometimes but is not consistent. If a press a key twice it don't work anymore and sometimes it stops alone too.
Let me put one part of the code here:
def run
# Two loops run in parallel using Threads.
# stream_log loops like a normal stream in the file, but it also parser the text.
# break it into requests and store in #requests_queue.
# stream_parsed_log stream inside the #requests_queue and shows it in the screen.
#requests_queue = Queue.new
#all_requests = Array.new
# It's not working yet.
Thread.new { listen_keyboard }
Thread.new { stream_log }
stream_parsed_log
end
def listen_keyboard
# not finished
loop do
char = STDIN.getch
case char
when 'q'
puts "Exiting."
exit
when 'a'
#types_to_show = ['GET', 'POST', 'PUT', 'DELETE', 'ASSET']
requests_to_show = filter_to_show(#all_requests)
command = true
when 'p'
#types_to_show = ['POST']
requests_to_show = filter_to_show(#all_requests)
command = true
end
clear_screen if command
#requests_queue += requests_to_show if command
command = false
end
end
I need a light in my path, what should I do?
That one was my mistake.
It's just a logic error in another part of code that was running in another thread so the ruby don't shows the error by default. I used ruby -d and realized what was wrong. This mistake was messing my keyboard input.
So now it's fixed and I am using STDIN.getch with no problem.
I just turn the raw mode off before show any string. And everything is ok.
You can check here, or in the gem itself.
That's it.
I have the following line in a long loop
page = Nokogiri::HTML(open(topic[:url].first)).xpath('//ul[#class = "pages"]//li').first
Sometimes my Ruby application crashes raising the "End of file reached " exception in this line.
How can I resolve this problem? Just a begin;raise;end block?
Is a script that performs a forum backup, so is important that doesn't skip any thread.
Thanks in advance.
In addition to #Phrogz's excellent advice (in particular about at_css with the simpler expression), I would pull the raw xml [content] separately:
page = if (content = open(topic[:url].first)).strip.length > 0
Nokogiri::HTML(content).xpath('//ul[#class = "pages"]//li').first
end
I would suggest that you should first to fix the underlying issue so that you do not get this error.
Does the same URL always cause the problem? (Output it in your log files.) If so, perhaps you need to URI encode the URL.
Is it random, and therefor likely related to a connection hiccup or server problem? If so, you should rescue the specific error and then retry one or more times to get the crucial data.
Secondarily, you should know that the CSS syntax for that query is far simpler:
page = Nokogiri.HTML(...).at_css('ul.pages li')
Not only is this less than half the bytes, it allows for cases like <ul class="foo pages"> that the XPath would miss.
Using at_css (or at_xpath) is the same as .css(...).first, but is faster and simpler.
So I've created and published a Sinatra app to Heroku without any issues. I've even tested it locally with rackup to make sure it functions fine. There are a series of API calls to various places after a zip code is consumed from the URL, but Heroku just wants to tell me there is an server error.
I've added an error page that tries to give me more description, however, it tells me it can't perform a `count' for #, which I assume means hash. Here's the code that I think it's trying to execute...
if weather_doc.root.elements["weather"].children.count > 1
curr_temp = weather_doc.root.elements["weather/current_conditions/temp_f"].attributes["data"]
else
raise error(404, "Not A Valid Zip Code!")
end
If anyone wants to bang on it, it can be reached at, http://quiet-journey-14.heroku.com/ , but there's not much to be had.
Hash doesn't have a count method. It has a length method. If # really does refer to a hash object, then the problem is that you're calling a method that doesn't exist.
That # doesn't refer to Hash, it's the first character of #<Array:0x2b2080a3e028>. The part between the < and > is not shown in browsers (hiding the tags themselves), but visible with View Source.
Your real problem is not related to Ruby though, but to your navigation in the HTML or XML document (via DOM). Your statement
weather_doc.root.elements["weather"].children.count > 1
navigates the HTML/XML document, selecting the 'weather' elements, and (tries to) count the children. The result of the children call does not have a method count. Use length instead.
BTW, are you sure that the document contains a tag <weather>? Because that's what your're trying to select.
If you want to see what's behind #, try
raise probably_hash.class.to_s