Add MSTest analyzers documentation

docs/core/testing/unit-testing-mstest-analyzers-MSTEST0001.md

@@ -0,0 +1,42 @@
+---
+title: "MSTEST0001: Explicitly enable or disable tests parallelization"
+description: "Learn about code analysis rule MSTEST0001: Explicitly enable or disable tests parallelization"
+ms.date: 12/20/2023
+f1_keywords:
+- MSTEST0001
+- UseParallelizeAttributeAnalyzer
+helpviewer_keywords:
+- UseParallelizeAttributeAnalyzer
+- MSTEST0001
+author: evangelink
+ms.author: amauryleve
+dev_langs:
+- CSharp
+- VB
+---
+# MSTEST0001: Explicitly enable or disable tests parallelization
+
+| Property                            | Value                                              |
+|-------------------------------------|----------------------------------------------------|
+| **Rule ID**                         | MSTEST0001                                         |
+| **Title**                           | Explicitly enable or disable tests parallelization |
+| **Category**                        | Performance                                        |
+| **Fix is breaking or non-breaking** | Non-breaking                                       |
+| **Enabled by default**              | Yes                                                |
+| **Default severity**                | Warning                                            |
+
+## Cause
+
+The assembly is not marked with `[Parallelize]` or `[DoNotParallelize]` attribute.
+
+## Rule description
+
+By default, MSTest runs tests sequentially which can lead to severe performance limitations. It is recommended to enable assembly attribute `[Parallelize]` or if the assembly is known to not be parallelizable, to use explicitly the assembly level attribute `[DoNotParallelize]`.
+
+## How to fix violations
+
+To fix a violation of this rule, add `[assembly: Parallelize]` or `[assembly: DoNotParallelize]` attribute.
+
+## When to suppress warnings
+
+Do not suppress a warning from this rule. Many libraries can benefit from a massive performance boost when enabling parallelization. When the test application is designed in a way that prevents parallelization, having the attribute explicitly set helps new developers to understand the limitations of the library.

docs/core/testing/unit-testing-mstest-analyzers-performance.md

@@ -0,0 +1,15 @@
+---
+title: Performance rules (code analysis)
+description: Learn about code analysis performance rules.
+author: evangelink
+ms.author: amauryleve
+ms.date: 12/20/2023
+---
+
+# Performance rules
+
+Rules that support high-performance testing.
+
+Identifier | Name | Description
+-----------|------|------------
+[MSTEST0001](unit-testing-mstest-analyzers-MSTEST0001.md) | UseParallelizeAttributeAnalyzer | By default, MSTest runs tests sequentially which can lead to severe performance limitations. It is recommended to enable assembly attribute `[Parallelize]` or if the assembly is known to not be parallelizable, to use explicitly the assembly level attribute `[DoNotParallelize]`.

docs/core/testing/unit-testing-mstest-analyzers.md

@@ -0,0 +1,22 @@
+---
+title: MSTest code analysis
+description: Learn about the MSTest code analysis.
+author: evangelink
+ms.author: amauryleve
+ms.date: 12/20/2023
+---
+
+# MSTest code analysis
+
+*MSTest analysis* ("MSTESTxxxx") rules inspect your C# or Visual Basic code for security, performance, design and other issues.
+
+> [!TIP]
+> If you're using Visual Studio, many analyzer rules have associated *code fixes* that you can apply to correct the problem. Code fixes are shown in the light bulb icon menu.
+
+The rules are organized into categories such as performance usage...
+
+## Categories
+
+**[Performance rules](unit-testing-mstest-analyzers-performance.md)**
+
+Rules that support high-performance testing.

docs/navigate/devops-testing/toc.yml

@@ -77,6 +77,16 @@ items:
                 href: ../../core/testing/unit-testing-mstest-runner-telemetry.md
               - name: Known exit codes
                 href: ../../core/testing/unit-testing-mstest-runner-exit-codes.md
+          - name: Code analysis
+            items:
+              - name: Overview
+                href: ../../core/testing/unit-testing-mstest-analyzers.md
+              - name: Performance
+                items:
+                  - name: Overview
+                    href: ../../core/testing/unit-testing-mstest-analyzers-performance.md
+                  - name: MSTEST0001
+                    href: ../../core/testing/unit-testing-mstest-analyzers-MSTEST0001.md
       - name: Run selective unit tests
         href: ../../core/testing/selective-unit-tests.md
       - name: Order unit tests