Step by step guide for doing the test analysis ?

 

Supportive guided tool for identifying the test technique for given user story

 

Jot Form

https://form.jotform.com/231752520899060

Contract Testing - Pact

I have to set up contract-based testing in my team and I took a course from a test automation university which I am sharing via a blog post. 

Credits to : TAU, Rafaela Azevedo

Introduction

A contract test assures that services can communicate with one another and that a provider has fulfilled a contract that was anticipated by a service that is using it. Anywhere that two services can communicate with one another is where contract tests are applicable (an API with the front end, for example).

Contract tests may have a straightforward structure or a complicated one that involves numerous providers and consumers interacting. As is typical in a microservices design, the provider of one flow is frequently also the consumer of another.

Consumers and Providers

What do a provider and a consumer mean in this situation? Any party that offers a service for interactions with its dependents is a provider, and any party that uses an API to communicate with a dependent service is a consumer. A relationship between a consumer and a consumer can be seen in the interactions between various back-end APIs. Another example is the front end of a browser communicating with a back-end API.

Contracts

Consider a contract as a binding legal arrangement. A series of contacts with anticipated request and answer structures are represented by contracts.

Broker

Contracts are kept with a broker. Although any generic asset server will do, versioning support is preferred. Utilizing the open-source Pact broker, which is ideal for these specific requirements, is a viable solution. A bespoke factory broker can be created using Docker.

Contract hierarchy test

In the testing hierarchy, contract tests are located next to integration tests. There is a possibility to develop contract tests wherever the reliability of communications between services must be confirmed.

Integration tests versus contract tests

Contract tests have an advantage over integration tests in that they can be conducted without a full runtime environment. Tests can be done independently by interacting with mock consumers and providers to simulate real consumers and providers. Contract tests reveal issues with messages sent between services, whereas integration tests highlight issues with interactions between integrated units. This enhances system regression detection, warning programmers before errors are committed to providers or customers alike. Finally, contract testing enables users to create applications using API definitions before the provider API is formally finished.

End-to-end API tests versus contract tests

Functional testing from beginning to end will find inconsistencies that show up in output data or the user interface. Contract tests will only check that API endpoint connections are active and functioning correctly.

End-to-End tests, in contrast, take a lot of time to execute because they are rigorous and complicated in design. They frequently reveal important flaws that would otherwise go unnoticed. Although limited in scope, contract testing is less time-consuming and can be done more frequently to offer some level of smoke test coverage each time code is released.

Functional tests versus contract tests

Functional testing verifies that the anticipated system activity has taken place while contract testing concentrates on the messages that move back and forth between a customer and a supplier.

Using Pact to Mock Test Interfaces

Pact is a consumer-driven contract testing tool, which means that contracts are created while consumer tests are being run. The benefit of using this pattern is that it only allows testing of producer output that is really used. As a result, any provider behaviour that current customers do not use can change without affecting any testing.

You don't have to worry about Pact managing the mocking of provider and consumer objects or contract definitions. The test code is written using the test-driven development (TDD) methodology. Pact simulates a request being sent to a real server by producing a faked answer. It creates a JSON file called Pact.

The Pact JSON file is loaded when a test is triggered on the provider's end, and a verification procedure decides whether or not the contract corresponds to what a customer expects. In line with consumer expectations, Pact creates this contract file, which will be compared to what the actual provider server is actually transmitting.

Languages that Pact presently supports include:

• Ruby
• Javascript
• .NET
• JVM
• Go
• Python
• Swift
• PHP

To increase the overall quality of an application release, contract testing is most effective when performed in conjunction with other types of testing. Use Contract tests to find flaws in consumer processes, errors in end-point settings, or unexpected payload changes brought on by provider changes.

Pairing with Sam Connelly on the journey of Public Speaking

 https://twitter.com/BugHunterSam/status/1565219944484458498

  After I got the response via this tweet, we DMed each other via twitter, and started to discuss the pairing.

We paired up on Sunday early morning and began talking about how we might pair up and what we could accomplish together.

Sam asked me a question at the beginning of our talk that I also believe is significant.

• Who is your audience? I mentioned testers.
• What you could give a talk on comfortably? Topics around testing and tools.
• Which one is my favourite? At the moment, I have to prepare for the super voice 3 round, so I thought I to choose the topic test strategy.
• What is the key takeaway? she further conveyed to me! Most people do not pay attention and they either listen to the start or the end. I replied to her, that maybe people could imply what I have done which I have shared during my talk! So she mentioned to me "Oh! Inspiration others do the same."
• Why would I bring in the audience to use this test strategy? What is the initial feedback?

After this question, we switch our conversation to the storytelling technique

Because we have grown up with stories, humans can relate to them. Keep in mind the Cinderella tales! In our context, What was the fix for this? brainstormed ideas Your encounter with the test technique, which initially did not function, was one of five different things that did not work. It's crucial to discuss failure. We tried to solve an issue in this way, but it didn't work, so we tried it in this approach instead, and it worked.

What makes a good presenter?

• Better context
• Include me in that conversation.
• Listening to it is interesting!
• Death by PowerPoint, often known as presentation slides with bullets, is terrible presentation material.
• the narrative you are telling.

Focus on the story you are going to tell. Pick a topic, and brainstorm everything you could talk about. 

Then if you can pick five things from the list brainstorming. All down on the page. Big list of things, top 5 head. 

Work together to generate five ideas related to the theme. Do you think using the five ideas you came up with will help me tell a story? Does not advance the plot? Rise and repeat.

Let's use mind maps. Brainstorming, its functioning, its collaboration, and use with the team, and its use of any tools. Each supporting topic for the major topic? There are five things connected to that that you should keep in mind when creating your slides. Focus on the story you're trying to tell, frequently a difficult one; if you're on a journey, describe it from the perspective of that point. Then, when you've created a story, You need nothing more difficult than this! 1 thought, 1 word on your slide. She further mentioned to me that this is Takahashi_method. It is not her style. Further, she added, that is recommended style which is less time-consuming. 

  

We agreed on for our next meeting, we both present 2 to 5 minutes of presentations on a mind map. We both will give presentations. We discuss topic 1. What went well, and what could be improved?

System Design - Web Crawler By Alex Xu

What is a web crawler? 

Constantly keep scanning the webpage and visit the link to each mentioned on each web page. 

 Why crawler is used? 

For search engines as a popular use, Web archiving and Web mining, web monitoring is another purpose. The complexity of designing a web scaler is either how big or small the website is! Understand the scope of the problem 

1. Given a set of URLs, download all the webpages addressed by the URLs 

2. Extract URLs from these web pages. 

3. Add a new URL to the list of URLs to be downloaded, Repeat 3 steps 

  Good Question to the interviewer: 

 Functional 

- What is the main purpose? Where it is used? for what it is used? Search index

 - How many web pages are the web crawler per month? 1 billion 

- Type of Content? HTML - Newly added and edited webpage? 

- How long does store the content? Yes, up to 5 years 

- Duplicate content? Page with duplicate content should be ignored 

- Should be worried about crawlers going to all paths from a security perspective? 

 Non-functional 

- Scalability - be efficient and parallelization 

 - Robustness - how well crawler full to traps in a webpage, malicious webpage? 

- Politeness - should not make too many requests to a website within a short period of time 

- Extensibility -flexible so that minimal changes are needed to support new content types.

- Availability and consistency are not matter in this case since the real client is not making the request. 

Something around estimation

High level design 

  How to know the website is updated - A web crawler has the hash of the webpage. The crawler does the BFS in the tree node and looks for either metadata or content. These crawlers run every day and if the crawler sees anything changes then they would store. They put the expectation on how many children?  https://web.archive.org/ is a place to web archive all websites.

Bloom efficient data structure help to understand if URL is seen

Design deep dive. BFS and DFS are first used, However, DFS is usually a not good choice because the depth of DFS can be very depth.