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Book synopsis

Build reliable software with confidence through modern testing practices

Code that works once is not enough.
Code that keeps working is what matters.

In real systems, bugs are inevitable. The difference between fragile software and production ready systems is testing.

"Test Everything" is a practical, hands on guide to building robust testing systems using Python and tools like pytest.

This book teaches you how to write tests that catch real problems, prevent regressions, and support continuous delivery.

Why testing is critical in production systems

Without proper testing, teams face:

• unexpected bugs in production
• fragile codebases
• slow development cycles
• fear of making changes
• unreliable deployments

Strong testing practices solve these problems.

What you will learn

• fundamentals of software testing
• unit, integration, and end to end testing
• writing effective tests with pytest
• mocking dependencies and external services
• test driven development practices
• structuring testable code
• handling edge cases and failures
• continuous integration workflows
• measuring coverage and test quality
• maintaining long term test suites

From simple tests to reliable systems

Throughout the book, you will learn how to:

• design tests that provide real confidence
• isolate components for accurate testing
• simulate complex environments with mocks
• automate testing in CI pipelines
• catch bugs before they reach users
• maintain scalable test suites over time

Each chapter focuses on practical testing strategies.

Practical applications

• backend API testing
• microservices validation
• automation testing pipelines
• regression testing systems
• CI and CD integration

These examples reflect real development workflows.

Who this book is for

• Python developers
• backend engineers
• QA engineers
• DevOps engineers
• teams building production software

If you want to build software that is reliable, maintainable, and ready for production, this book provides the roadmap.

Test with purpose.
Catch issues early.
Ship with confidence.

Book details

• Full title: Test Everything
• Subtitle: Production-Quality Testing with Python, pytest, Mocking, and Continuous Integration
• Author: MIGUEL FARMER
• Language: English
• Binding: Paperback
• Number of pages: 340
• EAN: 9798259457324
• ID: 52375722
• Publisher: Independently published
• Weight: 457 g
• Dimensions: 229 × 152 × 18 mm
• Date of publishing: 30. April 2026

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