# TDD in Legacy Code - Maintainable Component Tests - Backend

DevFeed: [TDD in Legacy Code - Maintainable Component Tests - Backend](<https://devfeed.tech/articles/tdd-in-legacy-code-maintainable-component-tests-backend-26187.md>)

Original publisher: [Read original article](<https://journal.optivem.com/p/maintainable-component-tests-in-legacy-code-backend>)

Author: Valentina Jemuović

Published: 2026-07-02T06:02:41Z

Content type: tutorial

Language: en

Sources: [Optivem Journal](<https://devfeed.tech/sources/optivem-journal.md>)

Topics: [Back end](<https://devfeed.tech/topics/backend.md>), [Test-driven development](<https://devfeed.tech/topics/tdd.md>), [legacy](<https://devfeed.tech/topics/legacy.md>)

Tags: [api](<https://devfeed.tech/tags/api.md>), [backend](<https://devfeed.tech/tags/backend.md>), [component](<https://devfeed.tech/tags/component.md>), [erp](<https://devfeed.tech/tags/erp.md>), [legacy](<https://devfeed.tech/tags/legacy.md>), [legacy-code](<https://devfeed.tech/tags/legacy-code.md>), [refactor](<https://devfeed.tech/tags/refactor.md>), [tdd](<https://devfeed.tech/tags/tdd.md>), [tests](<https://devfeed.tech/tags/tests.md>)

## AI overview

A tutorial on refactoring brittle backend component tests that are coupled to a backend API and ERP system, with the goal of making them more maintainable.

## Source excerpt

Many Backend Teams write unmaintainable Backend Component Tests - coupled to the Backend API and ERP. I'll show you how to refactor these brittle tests.