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migrate-mstest-v1v2-to-v3

Migrate MSTest v1 or v2 projects to MSTest v3 packages and configurations.

2|Updated Mar 17, 2026
Search Tags:#testing#migration#dotnet#mstest#runsettings#mstest-v3#data-row
One-click install
npx skills add https://github.com/sayedihashimi/copilot-skill-eval --skill migrate-mstest-v1v2-to-v3-sayedihashimi
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: migrate-mstest-v1v2-to-v3
Source: https://github.com/sayedihashimi/copilot-skill-eval/tree/main/examples/aspnet-razor-pages/plugins/dotnet-skills/dotnet-test/skills/migrate-mstest-v1v2-to-v3
Command: npx skills add https://github.com/sayedihashimi/copilot-skill-eval --skill migrate-mstest-v1v2-to-v3-sayedihashimi

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Migrate MSTest v1 or v2 test projects to MSTest v3. MSTest v3 is not binary compatible with v1/v2 — projects must be recompiled and updated.

Core Features & Use Cases

  • Step-by-step guidance for assessing MSTest usage, removing v1 references, updating to MSTest v3 packages, and adjusting code for breaking changes.
  • Guidance on replacing .testsettings with .runsettings and updating target frameworks to supported TFMs.
  • Verification workflow to ensure builds and tests pass after migration, with recommendations for handling common pitfalls.

Quick Start

Follow the migration guide to identify MSTest v1/v2 projects, upgrade packages to MSTest v3, adjust assertions and DataRow usage, update targets, and run verification.

Frequently Asked Questions about migrate-mstest-v1v2-to-v3

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I migrate MSTest v2 projects to MSTest v3?▼

To migrate MSTest v2 projects to MSTest v3, update your test packages, recompile the projects, and adjust code for breaking changes. MSTest v3 is not binary compatible with v1 or v2, so updating targets and configurations is required.

Why does my MSTest migration fail after updating to v3 packages?▼

MSTest migration to v3 fails because v3 is not binary compatible with v1/v2. You must recompile projects, rewrite incompatible assertions, update DataRow usage, and replace .testsettings files with .runsettings to resolve breaking changes.

Do I need to replace .testsettings with .runsettings for MSTest v3?▼

Yes, migrating to MSTest v3 requires replacing .testsettings with .runsettings. Updating test configurations and target frameworks to supported TFMs ensures the migrated test projects build and run successfully.

What is the best way to handle breaking changes when upgrading MSTest?▼

The best way to handle MSTest v3 breaking changes is to follow step-by-step guidance: remove v1 references, update to v3 packages, rewrite incompatible assertions, adjust DataRow usage, and validate builds and tests.

How do I verify my test project after migrating to MSTest v3?▼

Verify your MSTest v3 migration by running a verification workflow to ensure builds and tests pass. This process includes checking for common pitfalls and validating that updated target frameworks and runsettings are applied correctly.

Can I use MSTest v3 without updating target frameworks to supported TFMs?▼

No, migrating to MSTest v3 requires updating target frameworks to supported TFMs. Adjusting targets and replacing legacy test configurations ensures compatibility and successful test execution after the upgrade.

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