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@renovate renovate bot commented Oct 7, 2025

This PR contains the following updates:

Package Change Age Confidence
MSTest.TestAdapter 3.11.1 -> 4.0.2 age confidence
MSTest.TestFramework 3.11.1 -> 4.0.2 age confidence

Release Notes

microsoft/testfx (MSTest.TestAdapter)

v4.0.2

See the release notes here

v4.0.1

See the release notes here

v4.0.0

What is new?
Assert.That

MSTest v4 adds a new type of assertion, that allows you to write any expression, and it will inspect the result to give you more information on failure. Providing a very flexible way to assert complicated expressions. Here a simple example:

[TestClass]
public sealed class Test1
{
    [TestMethod]
    public void TestMethod1()
    {
        var animal = "Tiger";
        var zoo = new Zoo();
        Assert.That(() => zoo.GetAnimal() == animal);
    }
}

public class Zoo
{
    public string GetAnimal()
    {
        return "Giraffe";
    }
}
Assert.That(() => zoo.GetAnimal() == animal) failed.
Details:
    animal = "Tiger"     
    zoo.GetAnimal() = "Giraffe"
CallerArgumentExpression

CallerArgumentExpression is consumed by all assertions, to make them aware of the expressions used in the assertion. In the example below, we now know what both the expected and actual values are. But also what value they come from, giving us opportunity to provide better error messages:

[TestClass]
public sealed class Test1
{
    [TestMethod]
    public void TestMethod1()
    {
        string animal = null;
        Assert.AreEqual("Giraffe", animal);
    }
}
Error Message: Assert.AreEqual failed. Expected:<Giraffe>. Actual:<>. 
'expected' expression: '"Giraffe"', 'actual' expression: 'animal'.
Breaking changes

We hidden many types that should have never been public in the first place. We believe that most of the changes won't have any real user impact. For the changes where we expect user impact migration guide from v3 is provided: https://learn.microsoft.com/dotnet/core/testing/unit-testing-mstest-migration-v3-v4

See the MSTest changelog here: https://github.com/microsoft/testfx/blob/main/docs/Changelog.md#4.0.0
See the Microsoft.Testing.Platform changelog here: https://github.com/microsoft/testfx/blob/main/docs/Changelog-Platform.md#2.0.0

Full changelog here: microsoft/testfx@v3.11.0...v4.0.0


Configuration

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Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

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This PR was generated by Mend Renovate. View the repository job log.

@renovate renovate bot requested review from a team and MarcoGix as code owners October 7, 2025 20:11
@renovate renovate bot force-pushed the renovate/major-4-mstest-monorepo branch from 8c645db to 71ea16f Compare October 14, 2025 12:36
@renovate renovate bot force-pushed the renovate/major-4-mstest-monorepo branch 5 times, most recently from 2d002f0 to 631cdb7 Compare November 13, 2025 17:14
@renovate renovate bot force-pushed the renovate/major-4-mstest-monorepo branch from 631cdb7 to d5597bf Compare November 13, 2025 17:30
due to outdated Specflow-based project
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renovate bot commented Nov 14, 2025

Edited/Blocked Notification

Renovate will not automatically rebase this PR, because it does not recognize the last commit author and assumes somebody else may have edited the PR.

You can manually request rebase by checking the rebase/retry box above.

⚠️ Warning: custom changes will be lost.

@AndreaCuneo AndreaCuneo merged commit ee0d046 into master Nov 14, 2025
5 of 6 checks passed
@AndreaCuneo AndreaCuneo deleted the renovate/major-4-mstest-monorepo branch November 14, 2025 11:20
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2 participants