What you need to know to build a slackbot. Why you would, what your options are, and other considerations for constructing a Slack facade over operational complexity.
Test Driven Development en Go con Ginkgo y GomegaSoftware Guru
Esta sesión está constituida por dos partes: en la primera explicaré en qué consiste el test driven development y cómo funciona a grandes rasgos; posteriormente mostraré ejemplos de cómo se puede implementar en el lenguaje de programación Go utilizando el framework Ginkgo y la biblioteca de afirmaciones Gomega.
Continuous Delivery in Practice (extended)Tzach Zohar
Extended version of a previously uploaded presentation:
10 practical field-proven tips for building a continuously delivered service, based on Kenshoo's experience with its RTB service - a critical, high throughput, highly available component, serving millions of requests per minute in under 50 milliseconds.
From coding practices to test automation, from monitoring tools to feature A/B testing - the entire development chain should be focused around removing blockers and manual steps between your code and your clients, without ever settling for quality. Join to see what makes our clients and developers happy and effective.
Secure Your Pipeline While Keeping Your Developers and Admins HappyDevOps.com
Your pipeline is the glue that holds your infrastructure and automation platforms together. Securing it is essential to protecting against software supply chain attacks and when done properly provides a much better experience for both your developers and administrators.
In this session, we'll look at common issues we've seen in large enterprises when securing their pipelines and how adding an identity layer to those pipelines streamlined the deployment process with higher levels of assurance and faster audits.
What you need to know to build a slackbot. Why you would, what your options are, and other considerations for constructing a Slack facade over operational complexity.
Test Driven Development en Go con Ginkgo y GomegaSoftware Guru
Esta sesión está constituida por dos partes: en la primera explicaré en qué consiste el test driven development y cómo funciona a grandes rasgos; posteriormente mostraré ejemplos de cómo se puede implementar en el lenguaje de programación Go utilizando el framework Ginkgo y la biblioteca de afirmaciones Gomega.
Continuous Delivery in Practice (extended)Tzach Zohar
Extended version of a previously uploaded presentation:
10 practical field-proven tips for building a continuously delivered service, based on Kenshoo's experience with its RTB service - a critical, high throughput, highly available component, serving millions of requests per minute in under 50 milliseconds.
From coding practices to test automation, from monitoring tools to feature A/B testing - the entire development chain should be focused around removing blockers and manual steps between your code and your clients, without ever settling for quality. Join to see what makes our clients and developers happy and effective.
Secure Your Pipeline While Keeping Your Developers and Admins HappyDevOps.com
Your pipeline is the glue that holds your infrastructure and automation platforms together. Securing it is essential to protecting against software supply chain attacks and when done properly provides a much better experience for both your developers and administrators.
In this session, we'll look at common issues we've seen in large enterprises when securing their pipelines and how adding an identity layer to those pipelines streamlined the deployment process with higher levels of assurance and faster audits.
Automation Abstractions: Page Objects and BeyondTechWell
When you start writing automation for your projects, you quickly realize that you need to organize and design the code. You will write far more than “test” code; you also will write abstraction code because you want to make tests easier to read and maintain. But how do you design all this code? How do you organize and structure it? Should you use a domain specific language? Should you go keyword driven or use Gherkin? Should you use page objects with POJO or Factories? Do you create DOM level abstractions? Where do domain models fit in? Alan Richardson provides an overview of options available to you when modeling abstraction layers. Based on his experience with many approaches on real-world commercial projects, Alan helps you understand how to think about the modeling of abstraction layers. Illustrated with a number of code examples, Alan shows you a variety of approaches and discusses the pros and cons associated with each.
How to establish ways of working that allows shifting-left of the automation ...Max Barrass
Why Automate?
Your application will grow, you will not have enough hands
You are blocked by development
Hidden factory costs of bug-fix cycle
Why Shift-Left?
More people to negate massive inspections
Define measurable success early, work on good parts.
Reduce occurrence of defects
What is this got to do with Ways of working?
Unlock capacity
Make people smile
Is not
a Department
extra cost
a final oversight or a massive inspection
someone else’s job
Is
Everyone’s responsibility
Build into the ways of working
Everyone’s job
One of the most boring thing in software development in large companies is following a bureaucracy. Tons of developers were melted down by that ruthless machine with its not always obvious rules. That’s why we decided to delegate all the boring work to machines instead of humans and the talk will cover the achieved results.
A discussion of WebSockets in general, with a few examples of basic implementation. We'll address the gradients of client-server interaction and how/why to incorporate real time communication in web applications.
Good practices for debugging Selenium and Appium testsAbhijeet Vaikar
We often come across situations when:
> We cannot figure out why our Selenium/Appium scripts fail during execution either locally or on CI.
> We need to debug scripts locally while writing them but find debugging painful and slow
Debugging the scripts is often the approach to fix them. What all different ways we can do it?
I shared about some of the good practices I have used for debugging Selenium and Appium scripts
Automation Abstraction Layers: Page Objects and BeyondAlan Richardson
An overview of different approaches to Page Objects and Domain Objects for GUI Automation. Examples use WebDriver and Java.
Full source code is available to download, For more details see the associated blog post.
Viktor Turskyi "Effective NodeJS Application Development"Fwdays
For 15 years in development, I managed to take part in the creation of a large number of various projects. I have already made a number of talks on the working architecture of Web applications, but this is only part of the efficient development puzzle. We will consider the whole process from the start of the project to its launch in production. I’ll tell you how we approach the ideas of the “12 Factor App”, how we use the docker, discuss environment deployment issues, security issues, testing issues, discuss the nuances of SDLC and much more.
If you are like most test driven developers, you write automated tests for your software to get fast feedback about potential problems. Most of the tests you write will verify the functional behaviour of the software: When we call this function or press this button, the expected result is that value or that message.
But what about the non-functional behaviour, such as performance: When we perform this query the expected speed of getting results should be no more than that many milliseconds. It is important to be able to write automated performance tests as well, because they can give us early feedback about potential performance problems. But expected performance is not as clear-cut as expected results. Expected results are either correct or wrong. Expected performance is more like a threshold: If the performance is worse than this, we want the test to fail.
Tired of doing upfront test script creation in your testing efforts? Feeling bad for demotivating your testers? Want something to replace this sickening approach to software testing? This presentation outlines why test scripts are not useful, and how test ideas are the new way forward to better testing. Coverage, traceability, reporting, automation and skills are all covered. Take a quick look and see if you can see there is another way to do software testing that is actually pure common sense.
When third parties stop being polite... and start getting realCharles Vazac
By Nic Jansma and Charles Vazac (Akamai)
Fluent 2018
http://www.youtube.com/watch?v=L3LKtFh1HkQ
Would you give the Amazon Prime delivery robot the key to your house, just because it stops by to deliver delicious packages every day? Even if you would, do you still have 100% confidence that it wouldn’t accidentally drag in some mud, let the neighbor in, steal your things, or burn your house down? Worst-case scenarios such as these are what you should be planning for when deciding whether or not to include third-party libraries and services on your website. While most libraries have good intentions, by including them on your site, you have given them complete control over the kingdom. Once on your site, they can provide all of the great services you want—or they can destroy everything you’ve worked so hard to build.
It’s prudent to be cautious: we’ve all heard stories about how third-party libraries have caused slowdowns, broken websites, and even led to downtime. But how do you evaluate the actual costs and potential risks of a third-party library so you can balance that against the service it provides? Every library requires nonzero overhead to provide the service it claims. In many cases, the overhead is minimal and justified, but we should quantify it to understand the real cost. In addition, libraries need to be carefully crafted so they can avoid causing additional pain when the stars don’t align and things go wrong.
Nic Jansma and Charles Vazac perform an honest audit of several popular third-party libraries to understand their true cost to your site, exploring loading patterns, SPOF avoidance, JavaScript parsing, long tasks, runtime overhead, polyfill headaches, security and privacy concerns, and more. From how the library is loaded, to the moment it phones home, you’ll see how third-parties can affect the host page and discover best practices you can follow to ensure they do the least potential harm.
With all of the great performance tools available to developers today, we’ve gained a lot of insight into just how much third-party libraries are impacting our websites. Nic and Charles detail tools to help you decide if a library’s risks and unseen costs are worth it. While you may not have the time to perform a deep dive into every third-party library you want to include on your site, you’ll leave with a checklist of the most important best practices third-parties should be following for you to have confidence in them.
'Effective node.js development' by Viktor Turskyi at OdessaJS'2020OdessaJS Conf
How to develop NodeJS apps effectively? I will tell you all details and share his personal experience on the whole process: from the very start and up to the production stage.
You will also learn more about Docker, SDLC and 12 Factor App. Save the date!
Thi presentation was given at Selenium Camp on 21/02/2020 and show how we can divide better our API tests following the Test Pyramid concept and break it down on the service layer, using a pipeline to clarify and execute the tests in the order of importance.
Slides from my 4-hour workshop on Client-Side Performance Testing conducted at Phoenix, AZ in STPCon 2017 (March).
Workshop Takeaways:
Understand difference between is Performance Testing and Performance Engineering.
Hand’s on experience of some open-source tools to monitor, measure and automate Client-side Performance Testing.
Examples / code walk-through of some ways to automate Client-side Performance Testing.
See blog for more details - https://essenceoftesting.blogspot.com/2017/03/workshop-client-side-performance.html
Automation Abstractions: Page Objects and BeyondTechWell
When you start writing automation for your projects, you quickly realize that you need to organize and design the code. You will write far more than “test” code; you also will write abstraction code because you want to make tests easier to read and maintain. But how do you design all this code? How do you organize and structure it? Should you use a domain specific language? Should you go keyword driven or use Gherkin? Should you use page objects with POJO or Factories? Do you create DOM level abstractions? Where do domain models fit in? Alan Richardson provides an overview of options available to you when modeling abstraction layers. Based on his experience with many approaches on real-world commercial projects, Alan helps you understand how to think about the modeling of abstraction layers. Illustrated with a number of code examples, Alan shows you a variety of approaches and discusses the pros and cons associated with each.
How to establish ways of working that allows shifting-left of the automation ...Max Barrass
Why Automate?
Your application will grow, you will not have enough hands
You are blocked by development
Hidden factory costs of bug-fix cycle
Why Shift-Left?
More people to negate massive inspections
Define measurable success early, work on good parts.
Reduce occurrence of defects
What is this got to do with Ways of working?
Unlock capacity
Make people smile
Is not
a Department
extra cost
a final oversight or a massive inspection
someone else’s job
Is
Everyone’s responsibility
Build into the ways of working
Everyone’s job
One of the most boring thing in software development in large companies is following a bureaucracy. Tons of developers were melted down by that ruthless machine with its not always obvious rules. That’s why we decided to delegate all the boring work to machines instead of humans and the talk will cover the achieved results.
A discussion of WebSockets in general, with a few examples of basic implementation. We'll address the gradients of client-server interaction and how/why to incorporate real time communication in web applications.
Good practices for debugging Selenium and Appium testsAbhijeet Vaikar
We often come across situations when:
> We cannot figure out why our Selenium/Appium scripts fail during execution either locally or on CI.
> We need to debug scripts locally while writing them but find debugging painful and slow
Debugging the scripts is often the approach to fix them. What all different ways we can do it?
I shared about some of the good practices I have used for debugging Selenium and Appium scripts
Automation Abstraction Layers: Page Objects and BeyondAlan Richardson
An overview of different approaches to Page Objects and Domain Objects for GUI Automation. Examples use WebDriver and Java.
Full source code is available to download, For more details see the associated blog post.
Viktor Turskyi "Effective NodeJS Application Development"Fwdays
For 15 years in development, I managed to take part in the creation of a large number of various projects. I have already made a number of talks on the working architecture of Web applications, but this is only part of the efficient development puzzle. We will consider the whole process from the start of the project to its launch in production. I’ll tell you how we approach the ideas of the “12 Factor App”, how we use the docker, discuss environment deployment issues, security issues, testing issues, discuss the nuances of SDLC and much more.
If you are like most test driven developers, you write automated tests for your software to get fast feedback about potential problems. Most of the tests you write will verify the functional behaviour of the software: When we call this function or press this button, the expected result is that value or that message.
But what about the non-functional behaviour, such as performance: When we perform this query the expected speed of getting results should be no more than that many milliseconds. It is important to be able to write automated performance tests as well, because they can give us early feedback about potential performance problems. But expected performance is not as clear-cut as expected results. Expected results are either correct or wrong. Expected performance is more like a threshold: If the performance is worse than this, we want the test to fail.
Tired of doing upfront test script creation in your testing efforts? Feeling bad for demotivating your testers? Want something to replace this sickening approach to software testing? This presentation outlines why test scripts are not useful, and how test ideas are the new way forward to better testing. Coverage, traceability, reporting, automation and skills are all covered. Take a quick look and see if you can see there is another way to do software testing that is actually pure common sense.
When third parties stop being polite... and start getting realCharles Vazac
By Nic Jansma and Charles Vazac (Akamai)
Fluent 2018
http://www.youtube.com/watch?v=L3LKtFh1HkQ
Would you give the Amazon Prime delivery robot the key to your house, just because it stops by to deliver delicious packages every day? Even if you would, do you still have 100% confidence that it wouldn’t accidentally drag in some mud, let the neighbor in, steal your things, or burn your house down? Worst-case scenarios such as these are what you should be planning for when deciding whether or not to include third-party libraries and services on your website. While most libraries have good intentions, by including them on your site, you have given them complete control over the kingdom. Once on your site, they can provide all of the great services you want—or they can destroy everything you’ve worked so hard to build.
It’s prudent to be cautious: we’ve all heard stories about how third-party libraries have caused slowdowns, broken websites, and even led to downtime. But how do you evaluate the actual costs and potential risks of a third-party library so you can balance that against the service it provides? Every library requires nonzero overhead to provide the service it claims. In many cases, the overhead is minimal and justified, but we should quantify it to understand the real cost. In addition, libraries need to be carefully crafted so they can avoid causing additional pain when the stars don’t align and things go wrong.
Nic Jansma and Charles Vazac perform an honest audit of several popular third-party libraries to understand their true cost to your site, exploring loading patterns, SPOF avoidance, JavaScript parsing, long tasks, runtime overhead, polyfill headaches, security and privacy concerns, and more. From how the library is loaded, to the moment it phones home, you’ll see how third-parties can affect the host page and discover best practices you can follow to ensure they do the least potential harm.
With all of the great performance tools available to developers today, we’ve gained a lot of insight into just how much third-party libraries are impacting our websites. Nic and Charles detail tools to help you decide if a library’s risks and unseen costs are worth it. While you may not have the time to perform a deep dive into every third-party library you want to include on your site, you’ll leave with a checklist of the most important best practices third-parties should be following for you to have confidence in them.
'Effective node.js development' by Viktor Turskyi at OdessaJS'2020OdessaJS Conf
How to develop NodeJS apps effectively? I will tell you all details and share his personal experience on the whole process: from the very start and up to the production stage.
You will also learn more about Docker, SDLC and 12 Factor App. Save the date!
Thi presentation was given at Selenium Camp on 21/02/2020 and show how we can divide better our API tests following the Test Pyramid concept and break it down on the service layer, using a pipeline to clarify and execute the tests in the order of importance.
Slides from my 4-hour workshop on Client-Side Performance Testing conducted at Phoenix, AZ in STPCon 2017 (March).
Workshop Takeaways:
Understand difference between is Performance Testing and Performance Engineering.
Hand’s on experience of some open-source tools to monitor, measure and automate Client-side Performance Testing.
Examples / code walk-through of some ways to automate Client-side Performance Testing.
See blog for more details - https://essenceoftesting.blogspot.com/2017/03/workshop-client-side-performance.html
Similar to Contract Testing of Web Sockets: Functional Programming is taking the Stage (20)
TOP 10 B TECH COLLEGES IN JAIPUR 2024.pptxnikitacareer3
Looking for the best engineering colleges in Jaipur for 2024?
Check out our list of the top 10 B.Tech colleges to help you make the right choice for your future career!
1) MNIT
2) MANIPAL UNIV
3) LNMIIT
4) NIMS UNIV
5) JECRC
6) VIVEKANANDA GLOBAL UNIV
7) BIT JAIPUR
8) APEX UNIV
9) AMITY UNIV.
10) JNU
TO KNOW MORE ABOUT COLLEGES, FEES AND PLACEMENT, WATCH THE FULL VIDEO GIVEN BELOW ON "TOP 10 B TECH COLLEGES IN JAIPUR"
https://www.youtube.com/watch?v=vSNje0MBh7g
VISIT CAREER MANTRA PORTAL TO KNOW MORE ABOUT COLLEGES/UNIVERSITITES in Jaipur:
https://careermantra.net/colleges/3378/Jaipur/b-tech
Get all the information you need to plan your next steps in your medical career with Career Mantra!
https://careermantra.net/
HEAP SORT ILLUSTRATED WITH HEAPIFY, BUILD HEAP FOR DYNAMIC ARRAYS.
Heap sort is a comparison-based sorting technique based on Binary Heap data structure. It is similar to the selection sort where we first find the minimum element and place the minimum element at the beginning. Repeat the same process for the remaining elements.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressionsVictor Morales
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
ACEP Magazine edition 4th launched on 05.06.2024Rahul
This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
3. Billie
We are an innovative financial platform, focused on working capital financing.
Some numbers:
● Start: 01.12.2016
● Closed Beta: 01.05.2017
● Public Launch: 01.06.2017
● Team: 36
● Engineering Crew: 18
4. Frontend/Backend communication process at Billie
4
Frontend BackendPush Server
1.WebSocket Connection
5. WebSocket Push 4. API Endpoint Push
3. Change2. WebSocket Authorization
8. What makes it possible
8
● Backend is a Provider of data
● Frontend is a Consumer of data
● Push Server is a unit, responsible for communication. Same as Mock Server
● FE/BE Pact is a collection of two Interactions
○ WS Connection/Authorization
○ Backend - Frontend Push
9. What else makes it possible. Erlang Worldview *
9
● Everything is a process
● Processes have unique names
● If you know the name of a process you can send it a message
● Processes do what they are supposed to do or fail
* as Joe Armstrong, co-inventor of Erlang, summarized in his PhD thesis
10. Contract Testing of WebSockets
10
Consumer (Process) Test (Process)Push Server (Process)
3. Interaction 1
5. Interaction 2
1. Start
2. Start
4. Verification 1
6. Verification 2
12. What if not «Everything is a process»? E.g. PHP
12
Consumer (Object) Test (Process)Push Server (Process)
3. Interaction 1
5. Interaction 2
1. Start
2. Create
4. Verification 1
6. Verification 2