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Document RetryBaseAttribute/RetryAttribute introduced in MSTest 3.8 #44635

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Document RetryBaseAttribute/RetryAttribute introduced in MSTest 3.8 #44635

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Document RetryBaseAttribute/RetryAttribute introduced in MSTest 3.8
Youssef1313 Jan 31, 2025
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Make doc focus on RetryAttribute with RetryBaseAttribute mentioned as…
Youssef1313 Jan 31, 2025
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9 changes: 9 additions & 0 deletions docs/core/testing/unit-testing-mstest-writing-tests-attributes.md
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Expand Up @@ -353,6 +353,15 @@ The [DoNotParallelize](<xref:Microsoft.VisualStudio.TestTools.UnitTesting.DoNotP
> [!NOTE]
> By default, MSTest runs tests in sequential order so you only need to use this attribute if you have applied the `[Parallelize]` attribute at the assembly level.

### `RetryAttribute`

The `RetryAttribute` was introduced in MSTest 3.8. It causes the test method to be re-tried when it fails or timeouts. It allows you to specify the maximum number of retry attempts, the time delay between retries, and a delay backoff type which is either constant or exponential.

Only one `RetryAttribute` is expected to be present on a test method, and `RetryAttribute` cannot be used on methods that are not marked with `TestMethodAttribute`.

> [!NOTE]
> `RetryAttribute` derives from an abstract `RetryBaseAttribute`. You can also create your own retry implementations if the built-in `RetryAttribute` doesn't suite your needs.

## Utilities attributes

### `DeploymentItemAttribute`
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