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Get Started Free →dotnet/migrate-mstest-v3-to-v4
Fix build errors and breaking changes after upgrading MSTest v3 to v4, or plan a complete v3-to-v4 migration.
Passed 6 of 11 test cases with the skill, and 4 of 11 without it.
and 5 more in the full report
7 fixed4 passed either way7 still failing4 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 7 test cases the skill fixed. Same model, same prompt, with and without the skill.
We have custom test condition attributes extending `ConditionBaseAttribute`. After updating to MSTest v4 packages, our override of `ShouldRun` fails to compile. What property name replaced `ShouldRun`?
| Checked | Without skill | With skill |
|---|---|---|
| Identifies IsConditionMet as the replacement property for ConditionBaseAttribute.ShouldRun. | Missed | Passed |
The instructions your model reads when the skill loads.
Migrate a test project from MSTest v3 to MSTest v4. The outcome is a project using MSTest v4 that builds cleanly, passes tests, and accounts for every source-incompatible and behavioral change. MSTest v4 is not binary compatible with MSTest v3 -- any library compiled against v3 must be recompiled against v4.
Inspect the supplied project and source before searching the web or answering
from memory. Classify the request as a focused source fix, runtime behavior
change, CI discovery issue, compatibility question, or full migration, then
follow the matching row below. A clean compile does not exclude this skill:
discovery failures, TestContext lifecycle exceptions, and test-history
changes are runtime migration failures.
MSTest.TestFramework, MSTest.TestAdapter, or MSTest metapackage from 3.x to 4.xMSTest.Sdk from 3.x to 4.xTestMethodAttribute or ConditionBaseAttribute implementations for v4migrate-mstest-v1v2-to-v3 first, then return here| Input | Required | Description |
|---|---|---|
| Project or solution path | No | The .csproj, .sln, or .slnx entry point containing MSTest test projects. Discover it yourself by globbing the working directory; ask only when nothing is found or the choice is genuinely ambiguous |
| Build command | No | How to build (e.g., dotnet build, a repo build script). Auto-detect if not provided |
| Test command | No | How to run tests (e.g., dotnet test). Auto-detect if not provided |
| Detected request or state | Required action |
|---|
test cases passed, vs 4 / 11 without
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