Add documentation for skipping individual PSModule framework tests

Co-authored-by: MariusStorhaug <17722253+MariusStorhaug@users.noreply.github.com>

Author: Copilot

README.md

@@ -445,6 +445,102 @@ This is useful for reviewing what was checked even when no issues are found.
 For a complete list of available environment variables and configuration options, see the
 [super-linter environment variables documentation](https://github.com/super-linter/super-linter#environment-variables).
 
+## Skipping Individual Framework Tests
+
+The PSModule framework tests run automatically as part of the `Test-Module` and `Test-SourceCode` jobs. While you can skip entire test categories using the configuration settings (e.g., `Test.PSModule.Skip`), you can also skip individual framework tests on a per-file basis when needed.
+
+### How to Skip Tests
+
+To skip an individual framework test for a specific file, add a special comment at the top of that file:
+
+```powershell
+#SkipTest:<TestID>:<Reason>
+```
+
+- `<TestID>`: The unique identifier of the test to skip (see list below)
+- `<Reason>`: A brief explanation of why the test is being skipped
+
+The skip comment will cause the framework to skip that specific test for that file only, and will log a warning in the build output with the reason provided.
+
+### Available Framework Tests
+
+#### SourceCode Tests
+
+These tests run against your source code files in the `src` directory:
+
+| Test ID | Description | Example Skip Comment |
+|---------|-------------|---------------------|
+| `NumberOfProcessors` | Enforces use of `[System.Environment]::ProcessorCount` instead of `$env:NUMBER_OF_PROCESSORS` | `#SkipTest:NumberOfProcessors:Legacy code compatibility required` |
+| `Verbose` | Ensures `-Verbose` is not used unless explicitly disabled with `:$false` | `#SkipTest:Verbose:Required for debugging output` |
+| `OutNull` | Enforces use of `$null = ...` instead of `... \| Out-Null` for better performance | `#SkipTest:OutNull:Pipeline output needed for compatibility` |
+| `NoTernary` | Checks for ternary operators (currently skipped by default for PowerShell 7+ compatibility) | `#SkipTest:NoTernary:PowerShell 7+ only module` |
+| `LowercaseKeywords` | Ensures all PowerShell keywords are lowercase | `#SkipTest:LowercaseKeywords:Generated code` |
+| `FunctionCount` | Ensures each file contains exactly one function | `#SkipTest:FunctionCount:Helper functions included` |
+| `FunctionName` | Ensures the filename matches the function name | `#SkipTest:FunctionName:Legacy naming convention` |
+| `CmdletBinding` | Requires all functions to have `[CmdletBinding()]` attribute | `#SkipTest:CmdletBinding:Simple helper function` |
+| `ParamBlock` | Requires all functions to have a `param()` block | `#SkipTest:ParamBlock:No parameters needed` |
+| `FunctionTest` | Ensures all public functions have corresponding tests | `#SkipTest:FunctionTest:Test in development` |
+
+#### Module Tests
+
+These tests run against the compiled module in the `outputs/module` directory:
+
+- Module import validation
+- Module manifest validation
+
+Module tests typically don't need to be skipped as they validate the final built module.
+
+### Example Usage
+
+Here's an example of a function file that skips the `FunctionCount` test because it includes helper functions:
+
+```powershell
+#SkipTest:FunctionCount:This file contains helper functions for the main function
+
+function Get-ComplexData {
+    <#
+        .SYNOPSIS
+        Retrieves complex data using helper functions.
+    #>
+    [CmdletBinding()]
+    param(
+        [Parameter(Mandatory)]
+        [string] $Path
+    )
+
+    $data = Get-RawData -Path $Path
+    $processed = Format-ComplexData -Data $data
+    return $processed
+}
+
+function Get-RawData {
+    param([string]$Path)
+    # Helper function implementation
+}
+
+function Format-ComplexData {
+    param($Data)
+    # Helper function implementation
+}
+```
+
+### Best Practices
+
+- **Use skip comments sparingly**: Framework tests exist to maintain code quality and consistency. Only skip tests when absolutely necessary.
+- **Provide clear reasons**: Always include a meaningful explanation in the skip comment to help reviewers understand why the test is being skipped.
+- **Consider alternatives**: Before skipping a test, consider whether refactoring the code to comply with the test would be better for long-term maintainability.
+- **Document exceptions**: If you skip a test, document the reason in your PR description or code comments.
+
+### Related Configuration
+
+For broader test control, use the configuration file settings:
+
+- Skip all framework tests: `Test.PSModule.Skip: true`
+- Skip only source code tests: `Test.SourceCode.Skip: true`
+- Skip framework tests on specific OS: `Test.PSModule.Windows.Skip: true`
+
+See the [Configuration](#configuration) section for more details.
+
 ## Specifications and practices
 
 The process is compatible with: