# Write End-to-End Tests in Your Backend's Language

DevFeed: [Write End-to-End Tests in Your Backend's Language](<https://devfeed.tech/articles/write-end-to-end-tests-in-your-backend-s-language-41361.md>)

Original publisher: [Read original article](<https://spin.atomicobject.com/write-end-to-end-tests-in-your-backends-language/>)

Author: James McConkey

Published: 2026-09-17T12:00:42Z

Content type: tutorial

Language: en

Sources: [Atomic Object](<https://devfeed.tech/sources/atomic-object.md>)

Topics: [Testing](<https://devfeed.tech/topics/testing.md>), [Playwright](<https://devfeed.tech/topics/playwright.md>), [FastAPI](<https://devfeed.tech/topics/fastapi.md>), [Python](<https://devfeed.tech/topics/python.md>), [test data](<https://devfeed.tech/topics/test-data.md>), [Pydantic](<https://devfeed.tech/topics/pydantic.md>), [SQLAlchemy](<https://devfeed.tech/topics/sqlalchemy.md>), [ASP.NET Core](<https://devfeed.tech/topics/asp-net-core.md>), [PostgreSQL](<https://devfeed.tech/topics/postgresql.md>), [Docker Compose](<https://devfeed.tech/topics/docker-compose.md>)

Tags: [asp-net-core](<https://devfeed.tech/tags/asp-net-core.md>), [code](<https://devfeed.tech/tags/code.md>), [data](<https://devfeed.tech/tags/data.md>), [docker-compose](<https://devfeed.tech/tags/docker-compose.md>), [fastapi](<https://devfeed.tech/tags/fastapi.md>), [playwright](<https://devfeed.tech/tags/playwright.md>), [postgresql](<https://devfeed.tech/tags/postgresql.md>), [project-team-management](<https://devfeed.tech/tags/project-team-management.md>), [python](<https://devfeed.tech/tags/python.md>), [sqlalchemy](<https://devfeed.tech/tags/sqlalchemy.md>), [tests](<https://devfeed.tech/tags/tests.md>), [the-software-life](<https://devfeed.tech/tags/the-software-life.md>)

## AI overview

This article argues that end-to-end test-data setup is often the main design challenge, because tests must create consistent domain records while running alongside other tests. It recommends using browser-testing tools in the backend's language when possible, keeping meaningful relationships inline, and extracting small creation helpers without hiding scenario intent.

## Source excerpt

The browser is often the easiest part of an end-to-end test. Consider a test that verifies a user can complete an overdue task. The visible interaction is small: sign in, find the task, click Complete, and observe the new status. Before any of that can happen, the test needs a workspace, a user, a project, and [...] The post Write End-to-End Tests in Your Backend's Language appeared first on Atomic Spin.