Uploaded April 2026 | Updated September 2026, 3 weeks ago
Is 100% software testing code coverage a lie? Join Modern Software Engineering as we explore what is software testing and why 100% isn't always the goal for a software engineer.
In this video, we break down the complexities of software development and automation testing to answer a critical question: Does high test coverage actually mean high quality? Whether you are a software developer or currently taking a software testing course, understanding these metrics is vital for professional programming.
What You'll Learn:
- The Definition of Test Coverage: Understand how this metric tracks which lines of your code are executed during coding.
- The 100% Trap: A real-world story of a banking system with 100% coverage but zero assertions.
- Feedback Loops: Why fast feedback is the most important part of modern software engineering.
- Advanced Testing Concepts: An introduction to mutation testing and property-based testing.
- Strategic Metrics: How to use coverage as a trend indicator rather than a strict target.
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🎓 TESTING IN PRODUCTION | Free Guide
How do you get fast feedback on the quality and value of your software? Testing in Production. In this FREE downloadable guide, I explain: The role of testing in production, what sorts of test make sense, and how these tests fit into a broad test strategy. DOWNLOAD YOURS FOR FREE HERE ➡️ subscribepage.com/test-in-prod
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Sam on LinkedIn ➡️ linkedin.com/in/samnewman
Modern Software Engineering on X ➡️ https://x.com/ModernSoftwareX
Modern Software Engineering on LinkedIn ➡️ linkedin.com/company/modern-software-engineering
Modern Software Engineering on bluesky ➡️ https://bsky.app/profile/modernswe.bsky.social
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⭐ PATREON:
Join the Continuous Delivery community and access extra perks & content! ➡️ bit.ly/ContinuousDeliveryPatreon
🎥 Join Us On TikTok ➡️ tiktok.com/@modern.s.engineering
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👕 T-SHIRTS:
A fan of the T-shirts I wear in my videos? Grab your own, at reduced prices EXCLUSIVE TO CONTINUOUS DELIVERY FOLLOWERS! Get money off the already reasonably priced t-shirts!
🔗 Check out their collection HERE: ➡️ bit.ly/3Uby9iA
🚨 DON'T FORGET TO USE THIS DISCOUNT CODE: ContinuousDelivery
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CHANNEL SPONSORS:
Octopus Deploy sets the standard for Continuous Delivery (CD), empowering software teams to deliver value in an agile way. Globally, more than 4,000 organizations rely on its Continuous Delivery, GitOps, and release orchestration solutions to deliver swift value to their customers. Octopus efficiently orchestrates software delivery across multi-cloud, Kubernetes, data centers, and hybrid environments, whether containerized modern apps or heritage applications. With governance, risk, and compliance (GRC) at its core, Octopus supports Platform Engineering teams in their mission to provide a superior developer experience (DevEx). Octopus also actively contributes to the developer community with open-source projects. ➡️ bit.ly/MSExOCTDEP
Equal Experts is a product software development consultancy with a network of over 1,000 experienced technology consultants globally. They increase the pace of innovation by using modern software engineering practices that embrace Continuous Delivery, Security, and Operability from the outset ➡️ bit.ly/3ASy8n0
TransFICC provides low-latency connectivity, automated trading workflows and e-trading systems for Fixed Income and Derivatives. TransFICC resolves the issue of market fragmentation by providing banks and asset managers with a unified low-latency, robust and scalable API, which provides connectivity to multiple trading venues while supporting numerous complex workflows across asset classes such as Rates and Credit Bonds, Repos, Mortgage-Backed Securities and Interest Rate Swaps ➡️ transficc.com
-
#softwareengineering #softwaretesting #programming #developer
Is 100% software testing code coverage a lie? Join Modern Software Engineering as we explore what is software testing and why 100% isn't always the goal for a software engineer.
In this video, we break down the complexities of software development and automation testing to answer a critical question: Does high test coverage actually mean high quality? Whether you are a software developer or currently taking a software testing course, understanding these metrics is vital for professional programming.
What You'll Learn:
- The Definition of Test Coverage: Understand how this metric tracks which lines of your code are executed during coding.
- The 100% Trap: A real-world story of a banking system with 100% coverage but zero assertions.
- Feedback Loops: Why fast feedback is the most important part of modern software engineering.
- Advanced Testing Concepts: An introduction to mutation testing and property-based testing.
- Strategic Metrics: How to use coverage as a trend indicator rather than a strict target.
-
🎓 TESTING IN PRODUCTION | Free Guide
How do you get fast feedback on the quality and value of your software? Testing in Production. In this FREE downloadable guide, I explain: The role of testing in production, what sorts of test make sense, and how these tests fit into a broad test strategy. DOWNLOAD YOURS FOR FREE HERE ➡️ subscribepage.com/test-in-prod
-
Sam on X ➡️ https://x.com/samnewman
Sam on LinkedIn ➡️ linkedin.com/in/samnewman
Modern Software Engineering on X ➡️ https://x.com/ModernSoftwareX
Modern Software Engineering on LinkedIn ➡️ linkedin.com/company/modern-software-engineering
Modern Software Engineering on bluesky ➡️ https://bsky.app/profile/modernswe.bsky.social
-
⭐ PATREON:
Join the Continuous Delivery community and access extra perks & content! ➡️ bit.ly/ContinuousDeliveryPatreon
🎥 Join Us On TikTok ➡️ tiktok.com/@modern.s.engineering
-
👕 T-SHIRTS:
A fan of the T-shirts I wear in my videos? Grab your own, at reduced prices EXCLUSIVE TO CONTINUOUS DELIVERY FOLLOWERS! Get money off the already reasonably priced t-shirts!
🔗 Check out their collection HERE: ➡️ bit.ly/3Uby9iA
🚨 DON'T FORGET TO USE THIS DISCOUNT CODE: ContinuousDelivery
-
CHANNEL SPONSORS:
Octopus Deploy sets the standard for Continuous Delivery (CD), empowering software teams to deliver value in an agile way. Globally, more than 4,000 organizations rely on its Continuous Delivery, GitOps, and release orchestration solutions to deliver swift value to their customers. Octopus efficiently orchestrates software delivery across multi-cloud, Kubernetes, data centers, and hybrid environments, whether containerized modern apps or heritage applications. With governance, risk, and compliance (GRC) at its core, Octopus supports Platform Engineering teams in their mission to provide a superior developer experience (DevEx). Octopus also actively contributes to the developer community with open-source projects. ➡️ bit.ly/MSExOCTDEP
Equal Experts is a product software development consultancy with a network of over 1,000 experienced technology consultants globally. They increase the pace of innovation by using modern software engineering practices that embrace Continuous Delivery, Security, and Operability from the outset ➡️ bit.ly/3ASy8n0
TransFICC provides low-latency connectivity, automated trading workflows and e-trading systems for Fixed Income and Derivatives. TransFICC resolves the issue of market fragmentation by providing banks and asset managers with a unified low-latency, robust and scalable API, which provides connectivity to multiple trading venues while supporting numerous complex workflows across asset classes such as Rates and Credit Bonds, Repos, Mortgage-Backed Securities and Interest Rate Swaps ➡️ transficc.com
-
#softwareengineering #softwaretesting #programming #developer
