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Writing Testable Code

In this course, you'll learn how to write code that is easy to test. These skills will make practices like unit testing and test-driven development easier to accomplish.

Testable code is code that makes automated testing quick, easy, and enjoyable. In this course, Writing Testable Code, you'll learn how to write code that is easy to test. These skills are necessary to refactor code that is difficult to test into code that is easily testable. First, you'll be introduced to testable code, and how creating seams in your code makes code testable. Next, you'll learn a series of best practices that makes testing code easier such as, simplifying object construction, working with dependencies, and managing application state. Finally, you'll explore best practices further by walking through a code demo of each practice so you can see first-hand how they're implemented. These skills will make practices like unit testing significantly easier for you. By the end of this course, you'll have the skills necessary for writing testable code.

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What's inside

Syllabus

Course Overview

Introduction

Creating Seams in Code

Constructing Testable Objects

Working with Dependencies

Managing Application State

Maintaining Single Responsibility

Next Steps

Good to know

Know what's good

, what to watch for

, and possible dealbreakers

Appropriate for software engineers and developers

Taught by Matthew Renze, a recognized instructor

Examines testable code, which is standard in the industry

Teaches best practices in testing code, which helps learners develop professional skills

Provides a basis for test-driven development

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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 Writing Testable Code with these activities:

Review JavaScript basics

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Reviewing JavaScript will help learners develop a clearer baseline from which to build upon.

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Read through a JavaScript tutorial.
Try out some JavaScript examples.
Take a JavaScript quiz to test your understanding.

Find a mentor who has experience writing testable code

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Finding a mentor will allow learners to get personalized guidance and support from someone who has experience writing testable code.

Browse courses on Testable Code

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Identify the skills and knowledge you want to develop.
Research potential mentors.
Reach out to potential mentors and ask them if they are willing to mentor you.
Meet with your mentor regularly to get guidance and support.

Attend a local coding meetup or workshop

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Attending a coding meetup or workshop will allow learners to connect with other developers and to learn about new technologies and trends.

Browse courses on Coding

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Search for local coding meetups or workshops.
Attend a meetup or workshop.
Network with other developers.
Learn about new technologies and trends.

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Follow a tutorial on creating a simple web application with React

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Completing this tutorial will allow learners to apply the concepts they are learning in the course to a practical project.

Browse courses on React

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Find a tutorial on creating a simple web application with React.
Follow the tutorial step-by-step.
Deploy your web application to a hosting platform.

Practice writing testable code by solving coding challenges on a platform like LeetCode

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Solving coding challenges will help learners to apply the concepts they are learning in the course to practical problems.

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Sign up for a coding challenge platform like LeetCode.
Solve coding challenges on the platform.
Review your solutions and learn from your mistakes.

Participate in a coding competition or hackathon

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Participating in a coding competition or hackathon will allow learners to test their skills and to get feedback from other developers.

Browse courses on Testable Code

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Research upcoming coding competitions or hackathons.
Choose a competition or hackathon that you are interested in.
Register for the competition or hackathon.
Prepare for the competition or hackathon.
Participate in the competition or hackathon.

Write a blog post about a specific topic that you find challenging in the course

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Writing a blog post will help learners to consolidate their knowledge about testable code and to identify any areas where they need further clarification.

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Choose a topic that you find challenging in the course.
Research the topic thoroughly.
Write a blog post about the topic.
Publish your blog post on a platform like Medium or your own website.

Become a mentor for a junior developer or student learning to write testable code

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Mentoring others will help learners to solidify their understanding of testable code and to develop their communication and teaching skills.

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Find a junior developer or student who is learning to write testable code.
Offer to mentor them.
Meet with them regularly to answer their questions and provide guidance.
Help them to develop their skills in writing testable code.

Career center

Learners who complete Writing Testable Code will develop knowledge and skills that may be useful to these careers:

Software Engineer

Software Engineers apply engineering principles to the design, development, and maintenance of software. They use their knowledge of computer science and software engineering to create software that is efficient, reliable, and secure. Testable code is important because it allows Software Engineers to quickly and easily test their code for bugs, which can lead to faster development cycles and higher-quality software. This course can help Software Engineers write more testable code, which can lead to a more successful career.

See salaries and explore the career path for Software Engineer

Software Developer

Software Developers write code that instructs computers and other electronic devices. This involves designing, testing, and maintaining applications, systems, and software. Testable code is important because it makes it easier to identify and fix bugs, which can lead to more stable and reliable software. This course can help Software Developers write more testable code, which can lead to a more successful career.

See salaries and explore the career path for Software Developer

Test Engineer

Test Engineers design and execute tests to ensure that software meets the requirements of the end user. They use a variety of techniques to test software, including unit testing, integration testing, and system testing. Testable code is important because it makes it easier for Test Engineers to create effective tests that can identify bugs and ensure that software is reliable and secure. This course can help Test Engineers write more testable code, which can lead to a more successful career.

See salaries and explore the career path for Test Engineer

Quality Assurance Analyst

Quality Assurance Analysts test software to identify bugs and ensure that it meets the requirements of the end user. They use a variety of techniques to test software, including unit testing, integration testing, and system testing. Testable code is important because it makes it easier for Quality Assurance Analysts to test software thoroughly and efficiently. This course can help Quality Assurance Analysts write more testable code, which can lead to a more successful career.

See salaries and explore the career path for Quality Assurance Analyst

Technical Lead

Technical Leads lead teams of software developers and engineers. They are responsible for the technical vision and direction of software projects. Testable code is important because it makes it easier for Technical Leads to manage and coordinate software development teams. This course can help Technical Leads write more testable code, which can lead to a more successful career.

See salaries and explore the career path for Technical Lead

Software Architect

Software Architects design and build the architecture of software systems. They use their knowledge of computer science and software engineering to create systems that are efficient, reliable, and scalable. Testable code is important because it makes it easier for Software Architects to design systems that can be easily tested and maintained. This course can help Software Architects write more testable code, which can lead to a more successful career.

See salaries and explore the career path for Software Architect

Software Project Manager

Software Project Managers plan, manage, and execute software development projects. They use their knowledge of project management and software engineering to ensure that projects are completed on time, within budget, and to the required quality standards. Testable code is important because it makes it easier for Software Project Managers to track the progress of software projects and identify and mitigate risks. This course can help Software Project Managers write more testable code, which can lead to a more successful career.

See salaries and explore the career path for Software Project Manager

Computer Programmer

Computer Programmers write code that instructs computers and other electronic devices. They use a variety of programming languages to create software that meets the needs of end users. Testable code is important because it makes it easier for Computer Programmers to debug and maintain software. This course can help Computer Programmers write more testable code, which can lead to a more successful career.

See salaries and explore the career path for Computer Programmer

Software Tester

Software Testers test software to identify bugs and ensure that it meets the requirements of the end user. They use a variety of techniques to test software, including unit testing, integration testing, and system testing. Testable code is important because it makes it easier for Software Testers to create effective tests that can identify bugs and ensure that software is reliable and secure. This course can help Software Testers write more testable code, which can lead to a more successful career.

See salaries and explore the career path for Software Tester

Database Administrator

Database Administrators design, implement, and maintain databases. They use their knowledge of database management systems to ensure that databases are reliable, efficient, and secure. Testable code is important because it makes it easier for Database Administrators to test the performance and reliability of databases. This course may be useful for Database Administrators who want to learn more about writing testable code.

See salaries and explore the career path for Database Administrator

Systems Analyst

Systems Analysts design, implement, and maintain computer systems. They use their knowledge of computer science and systems analysis techniques to create systems that meet the needs of businesses. Testable code is important because it makes it easier for Systems Analysts to test the performance and reliability of computer systems. This course may be useful for Systems Analysts who want to learn more about writing testable code.

See salaries and explore the career path for Systems Analyst

Business Analyst

Business Analysts gather and analyze business requirements to help businesses improve their processes and systems. They use their knowledge of business analysis techniques to identify areas for improvement and develop solutions. Testable code is important because it makes it easier for Business Analysts to test the feasibility and effectiveness of their proposed solutions. This course may be useful for Business Analysts who want to learn more about writing testable code.

See salaries and explore the career path for Business Analyst

Data Analyst

Data Analysts collect, analyze, and interpret data to identify trends and patterns. They use their knowledge of statistics and data analysis techniques to help businesses make better decisions. Testable code is important because it makes it easier for Data Analysts to test the accuracy and reliability of their data analysis models. This course may be useful for Data Analysts who want to learn more about writing testable code.

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Information Technology Manager

Information Technology Managers plan, manage, and coordinate the use of information technology resources in an organization. They use their knowledge of information technology and management techniques to ensure that technology is used to support the goals of the organization. Testable code is important because it makes it easier for Information Technology Managers to test the effectiveness and efficiency of information technology systems. This course may be useful for Information Technology Managers who want to learn more about writing testable code.

See salaries and explore the career path for Information Technology Manager

Project Manager

Project Managers plan, manage, and execute projects. They use their knowledge of project management techniques to ensure that projects are completed on time, within budget, and to the required quality standards. Testable code is important because it makes it easier for Project Managers to track the progress of projects and identify and mitigate risks. This course may be useful for Project Managers who want to learn more about writing testable code.

See salaries and explore the career path for Project Manager

Reading list

We've selected 14 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 Writing Testable Code.

Test Driven Development

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Classic in software development and provides a practical guide to TDD.

Writing Testable Code

What's inside

Syllabus

Good to know

Save this course

Activities

Career center

Reading list

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