design patterns – How to model and unit test code with multiple side effects?

How to unit test code that requires multiple side effects?

For example, making an invoice. Simple action requires few thing to happen simultaneously:

  • create invoice in db
  • send invoice to backend
  • print slip
  • open cash drawer (if cash payment)
    (Simplified)

I am having a hard time designing an object that does this and respects SRP, and therefore is easy to test.

Does anyone have advice on a good approach for this problem?

New more extensive reliability test for proxy — 👉 GSA SEO and Marketing Forum 👈

Hi @Sven, I am placing this discussion in the SER category but it could also be for Gsa Proxy Scraper.

I thinking about this for several days. Every time I test (public) proxies with Bing tests and use them in SER, 90% burns in a few minutes.

They are not that they get banned by the search engine because I do not use them to scrape, the listings are imported.

I know our IP can be banned by proxies after a few uses but in my opinion it is not that, 90% is too much.

I think we should add another test, a test that tests the sending and receiving of data for each proxy.

For the downlnoad, downloading a photo for example would suffice but for the upload? Something must be found.

I also appeal to all members who read this post. What could we use heavily enough to do an upload/download test?

A proxy whose upload and download have been tested beforehand would be much less inclined to burn under load.

Who Creates a Test Plan and and at what stage of SDLC?

In manual Testing concept, who creates ?
A Tester or Test Manager or Test LEad are involved while preparing Test Plan.
Is the test plan created at the Design phase ?

installation – Magento2 doesn’t load in Browser after fresh install and successful nginx config test

I successfully deployed the latest Magento 2.4.1 on Ubuntu 18.04, PHP, Nginx with letsencrypt cert.

Previously, when i visit my domain i was able to see the magento 2 welcome page. After having made the Command line installation successfully and got the unique link to admin panel, visiting magento through the browser is returning a server not found error.

When i send a GET request to local host (NOT https) from server side, it returns the following Nginx welcome page.

curl -XGET http://localhost

<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
    body {
        width: 35em;
        margin: 0 auto;
        font-family: Tahoma, Verdana, Arial, sans-serif;
    }
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>

<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>

<p><em>Thank you for using nginx.</em></p>

</body>
</html>

I am able to successfully ping my connected domain over the internet which returns the actual server IPv4 address

root@pc:~# ping domain.com
PING domain.com (xxx.xx.xxx.xx) 56(84) bytes of data.
64 bytes from xxx.xx.xxx.xx (xxx.xx.xxx.xx): icmp_seq=1 ttl=53 time=161 ms
64 bytes from xxx.xx.xxx.xx (xxx.xx.xxx.xx): icmp_seq=2 ttl=53 time=82.6 ms
64 bytes from xxx.xx.xxx.xx (xxx.xx.xxx.xx): icmp_seq=3 ttl=53 time=105 ms

If i ping my domain with “www.” before it retuns the below

root@pc:~# ping **www**.domain.com
ping: www.domain.com: Name or service not known

Possible issues:

I have magento installed in var/www/ instead of var/www/html but i made the necessary changes in default.conf as well as nginx.conf and the sample configuration file in the magento2 filesystem configuration (nginx.conf.sample)

The solution may be something very simple that i missed, does anyone have an idea?

networking – ncat script to test source IP addresses with UDP load balancer

I have two Ubuntu Virtual Machines behind an Azure Load Balancer. I’m observing some inconsistencies with the source IP addresses set in outgoing UDP packets from the VM’s. I’m trying to come up with a simple ncat command or script that I can run on the VM’s to test the source IP’s.

My idea is to create a circular path (note the Load Balancer is transparent as far as the scripts and test go):

client -> LB -> VM1 -> VM2 -> LB -> client

What I can’t workout is how to pass the command through VM1 to VM2 to get it to execute a connection back to the client.

I’m thinking it needs to be the same command on VM1 and VM2:

ncat --sh-exec "/bin/bash" -k -u -l 1235

And the client connects to VM1 and sends it a command which gets through to VM2 and cause it to execute an ncat connection back to the client:

ncat -u 10.0.0.4 1235
echo "ncat -u $NCAT_REMOTE_ADDR $NCAT_REMOTE_PORT" | ncat -u 10.0.0.7 1235
```

The connection makes it to VM2 but not back to the client.

Should postman tests test real or mocked data?

I want to write API tests using postman and then run them on Jenkins. My question is should those tests target real application data or should I set up some kind of mocked data just for those tests?

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Where should I get my Covid test (for travel to the UK) in India?

I am travelling from India to the UK on the 21st of January. The UK government has made it mandatory to get a negative Covid test before coming to the UK. Can I get the test done from anywhere or are there designated laboratories?

mobile data – My Galaxy J7 phone is not connecting to the Internet without WiFi anymore, anything I can test / verify to make it work?

What would be the reasons for which my Android would not connect to the Internet using the Mobile Data mode? (that open is ON)

I don’t go out much these days since there is Covid, but I’d like to have Internet once in a while and somehow the Mobile Data doesn’t seem to connect, yet I can do phone calls just fine. It’s it using the same connection for data?

I do have a data plan in good standing and it definitely worked before (last time I can say I tried was some time last summer, so about 6 months ago).

Any idea what I could try next?

sequences and series – Another form of the ratio test

Let $a_k=0, forall k in mathbb{N}$. If $$lim_{ktoinfty}left|frac{a_{k+2}}{a_k}right|<1$$ then the series $sum_{k=1}^infty a_k$ is absolutely convergent.

I am really interested into seeing a proof of this but I cannot find one. For the original ratio test, there are many proofs but this one is different. Has anyone an idea? Thanks.