Apply a remedy after a Pester test fails

RetryAndFix.ps1

# Apply a remedy after a Pester test fails to fix the problem that caused 
# the test to fails (eg. all inactive AD users should be disabled, 
# so a remedy is to disable all inactive users)
 
 function RetryAndFix ([scriptBlock]$Test, [scriptBlock]$Fix, $Wait) {

    try {
        & $Test 
    }
    catch {
        "Failed with $_, fixing."
        $failed = $true
        try {
            &$Fix
        }
        catch {
            throw "Fix failed"
        }
        Write-Host "Waiting for $Wait seconds..."
        Start-Sleep -Seconds $Wait

        try {
            &$Test
            $fixed = $true
        }
        catch {
            
        }
        finally {
            if ($failed -and $fixed) {
                Write-Host "Remedy applied"
            }
        }
    }
}

$script:someSetting = $false
RetryAndFix -Test { $script:someSetting | Should -BeTrue } -Fix { $script:someSetting=$true } -Wait 2