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Rupesh Tiwari

Marble diagrams enables you to understand the behavior of RxJS observables and operators visually. This course will teach you all of the foundational building blocks of Marble testing your RxJS app including hot and cold observables and much more.

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Marble diagrams enables you to understand the behavior of RxJS observables and operators visually. This course will teach you all of the foundational building blocks of Marble testing your RxJS app including hot and cold observables and much more.

The RxJS library is one of the most popular libraries in the JavaScript world. RxJS provides reactive programming capability in your application. In this course, Unit Testing RxJS with Marble Diagrams, you'll get a complete overview of Marble testing, including what can be accomplished with it, starting with the basics of Marble syntax. First, you'll learn about Marble testing, in full detail, until the point of using it in a real-life web application. Next, you'll explore how to test hot and cold observables including mocking their values in unit tests. Then, you'll discover RxJS operators like zip and concat behaviors using Marble testing. Finally, you'll be shown how to write marble tests against business logic, exception cases, and finding and resolving race conditions using Marble testing. By the time you're done with this course, you'll have the expertise necessary to do Marble testing for RxJS applications and you'll be writing more readable tests around your RxJS code.

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What's inside

Syllabus

Course Overview
Getting Started
Learning Jasmine Marble Basics
Unit Testing with Hot and Cold Observables
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Unit Testing by Mocking Observable Values and Testing RxJS Operators
Testing Business Code and Handling Errors & Race Conditions

Good to know

Know what's good
, what to watch for
, and possible dealbreakers
Teaches Marble testing, enabling Reactive Programming in RxJS applications
Develops an understanding of real-life web application testing using Marble testing
Helps write readable tests around RxJS code using business logic, exception cases, race conditions, and more
Course will require learners to come in with some knowledge of RxJS and reactive programming

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Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Unit Testing RxJS with Marble Diagrams with these activities:
Review Jasmine and RxJS Basics
Reacquaint yourself with the fundamentals of Jasmine and RxJS to enhance your understanding of Marble diagrams.
Browse courses on Jasmine
Show steps
  • Revisit Jasmine fundamentals, including syntax and usage.
  • Review RxJS concepts such as observables, operators, and subjects.
  • Explore official documentation and tutorials to refresh your knowledge.
Organize Course Resources and Notes
Improve your learning experience by organizing course materials and notes effectively.
Show steps
  • Gather and arrange lecture materials, slides, and handouts.
  • Create a structured system for organizing your notes.
  • Review and consolidate your notes regularly.
Assist Peers in Understanding Marble Diagrams
Solidify your understanding by assisting peers in resolving queries related to Marble diagrams.
Browse courses on Peer Support
Show steps
  • Identify peers who seek assistance with Marble diagrams.
  • Provide clear explanations and guidance based on your knowledge.
  • Encourage your peers to practice and ask further questions.
Three other activities
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Show all six activities
Participate in Marble Testing Challenges
Test your skills by participating in Marble testing challenges or competitions.
Show steps
  • Identify online or community-based Marble testing challenges.
  • Prepare your skills and knowledge for the competition.
  • Participate in the challenge and complete the Marble testing tasks.
  • Review your performance, identify areas for improvement, and learn from others.
Develop a Marble Testing Framework
Enhance your proficiency by creating a custom framework for writing and managing Marble tests.
Show steps
  • Design a framework structure that meets your testing needs.
  • Implement helper functions and utilities for common testing scenarios.
  • Integrate your framework with your RxJS application.
  • Document your framework for easy reuse and sharing.
  • Test and refine your framework to ensure accuracy and reliability.
Build a Personal Project Utilizing Marble Testing
Enhance your practical skills by developing a project that incorporates Marble testing.
Show steps
  • Identify a project idea that aligns with your interests and learning goals.
  • Plan and design the project architecture, incorporating Marble testing.
  • Implement the project, ensuring proper testing coverage using Marble diagrams.
  • Deploy and test your project to validate its functionality and effectiveness.
  • Refine and improve your project based on testing results and feedback.

Career center

Learners who complete Unit Testing RxJS with Marble Diagrams will develop knowledge and skills that may be useful to these careers:
Software Developer
As a Software Developer, you should understand programming in general, how to debug, and be capable of coding logic. Unit Testing RxJS with Marble Diagrams can introduce you to a popular library used by many developers and can serve to help build a foundation in structuring good testing practices.
Test Engineer
In this Test Engineer role, you will be expected to organize, plan, and perform software testing throughout the lifecycle of the software. Unit Testing RxJS with Marble Diagrams is a course that would prove useful for this career path, as it trains you in the practice of test engineering and helps you understand the 'why' and 'how' of testing your code.
Front-End Developer
A Front-End Developer would be well-served to gain insight into frameworks like RxJS, as understanding their functionality and interaction with other frameworks could enhance your efficiency and productivity as a Front-End Developer.
Full Stack Engineer
As a Full-Stack Engineer, understanding a library like RxJS and its testing processes may prove useful. This course, Unit Testing RxJS with Marble Diagrams, can get you started with understanding how to read and write these tests.
Back-End Developer
In your interaction with front-end developers and other members of your team, it may be helpful to have background knowledge in testing practices around a framework such as RxJS. Unit Testing RxJS with Marble Diagrams may be useful as an introductory course to testing frameworks.
Database Administrator
Though seemingly outside of your immediate area of work, Unit Testing RxJS with Marble Diagrams can provide knowledge and insight into a different aspect of development, specifically testing practices for frameworks like RxJS. This could help give you broader context in understanding the development process.
Business Analyst
As a Business Analyst, you may find that your work will intersect with the work of developers in the organization. Having a fundamental background in the concepts covered in Unit Testing RxJS with Marble Diagrams can help you engage with these individuals.
Product Manager
Unit Testing RxJS with Marble Diagrams may help you broaden your understanding of engineering processes particularly in testing. As a Product Manager, this can aid you in communicating more effectively with different members of your team, including engineers.
Technical Writer
In collaborating with engineering teams, it may be beneficial for a Technical Writer to have background knowledge in specialized topics such as RxJS and related frameworks. Unit Testing RxJS with Marble Diagrams may be useful as an introductory resource for understanding these frameworks.
Project Manager
Project Managers are likely to collaborate with teams of developers and engineers and understanding their work can be critical for success. Unit Testing RxJS with Marble Diagrams may be a useful resource in gaining an understanding of RxJS and its related testing frameworks.

Reading list

We've selected eight books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Unit Testing RxJS with Marble Diagrams.
A comprehensive guide to unit testing in JavaScript. It covers advanced testing topics, such as testing asynchronous code, mocking, and dependency injection, and provides practical tips and best practices.
Provides a general overview of unit testing best practices. While not specific to JavaScript, it offers valuable insights into the principles and techniques of effective unit testing.
An in-depth guide to Jasmine, this book covers advanced topics such as mocking, spying, and asynchronous testing. It valuable resource for developers who want to get the most out of Jasmine.
Practical guide to unit testing for web developers. It covers the basics of unit testing, as well as more advanced topics such as testing asynchronous code and using mocking frameworks.
Provides a concise overview of the good parts of JavaScript, including the core concepts of the language, as well as best practices for writing clean and maintainable code.
Provides a comprehensive introduction to reactive programming using RxJS. It covers the core concepts of reactive programming, as well as how to use RxJS to build reactive applications.
Provides a comprehensive overview of design patterns in JavaScript. It covers a wide range of design patterns, from creational patterns to structural patterns to behavioral patterns.

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