infra-test

Infrastructure Test Skill

Trigger

"Run infra tests" / "Test infrastructure" / "Validate before deploy" / "Run Pester"

Steps

1. Static Analysis

# PSScriptAnalyzer — PowerShell scripts
Invoke-ScriptAnalyzer -Path ./scripts -Recurse -Severity Error -ReportSummary

# Bicep lint
az bicep lint --file infra/main.bicep

# Terraform
terraform init -backend=false
terraform fmt -check -recursive
terraform validate

2. Pester Unit Tests

Install-Module Pester -MinimumVersion 6.2.0 -Force -Scope CurrentUser
Import-Module Pester

$config = New-PesterConfiguration
$config.Run.Path          = './tests/unit'
$config.Output.Verbosity  = 'Detailed'
$config.TestResult.Enabled         = $true
$config.TestResult.OutputPath      = 'TestResults-Unit.xml'
$config.TestResult.OutputFormat    = 'JUnitXml'
$config.CodeCoverage.Enabled       = $true
$config.CodeCoverage.Path          = './modules/**/*.ps1'

$result = Invoke-Pester -Configuration $config

if ($result.FailedCount -gt 0) {
    Write-Error "Unit tests failed: $($result.FailedCount) failures"
    exit 1
}

3. Bicep What-If (Pre-deploy Validation)

az deployment group what-if \
  --resource-group $resourceGroup \
  --template-file infra/main.bicep \
  --parameters infra/main.parameters.json \
  --no-pretty-print

4. Terraform Plan

terraform plan -compact-warnings -out=tfplan
terraform show -json tfplan | jq '.resource_changes[] | select(.change.actions[] | contains("delete"))'

5. Integration Tests (Requires Deployed Environment)

# Run against a real environment — requires Az authentication
$config = New-PesterConfiguration
$config.Run.Path = './tests/integration'
$config.Output.Verbosity = 'Detailed'
$config.TestResult.Enabled = $true
$config.TestResult.OutputPath = 'TestResults-Integration.xml'

Invoke-Pester -Configuration $config

Pass / Fail Gates

Gate	Command	Required
PSScriptAnalyzer	Invoke-ScriptAnalyzer -Severity Error	✅
Bicep lint	az bicep lint	✅
Pester unit	Invoke-Pester ./tests/unit	✅
Bicep what-if	az deployment group what-if	✅ pre-deploy
Terraform validate	terraform validate	✅
Terraform fmt	terraform fmt -check	✅
Pester integration	Invoke-Pester ./tests/integration	✅ post-deploy