nohwnd

# Keeping a value from a mock call, or some other place 
# while avoiding $script: to keep script scope clean 

Describe "a" { 
    It 'Test' {
        function Get-GitHubRelease ($Release) { }

        # use a reference object instead of directly assiging to a 
        # variable to collect the values from a mock call
        $container = @{}

nohwnd

## Getting and setting variables from within a module into the calling scope

# make sure we re-import the module when experimenting with this
# to get our functions updated
Get-Module m | Remove-Module 


New-Module m -ScriptBlock { 
    function Get-CallerVariable { 
        [CmdletBinding()]

nohwnd

function Get-Filter ($Predicate) { 

    # gets the property hashtable of an object
    $properties = $Predicate.PSObject.Properties

    # runs the code below in a scriptblock to ensure that we only capture 
    # the desired $Properties variable in case we would have more variables 
    # in this function. This is not strictly necessary, but closure only captures
    # local variables so it is useful trick to limit the variables that we capture.
    & {

nohwnd

$m = Get-Command Invoke-Pester -ErrorAction SilentlyContinue | Select-Object -ExpandProperty Module
$psv = $PSVersionTable.PSVersion
$pre = $m.PrivateData -and $m.PrivateData.PSData -and $m.PrivateData.PSData.PreRelease
$pv = if ($pre) { "$($m.Version)-$($m.PrivateData.PSData.PreRelease)" } else { $m.Version }
"Pester version     : " + $pv + " " + $m.Path
"PowerShell version : " + $psv
"OS version         : " + [System.Environment]::OSVersion.VersionString

nohwnd

$harmony = "$PSScriptRoot/0Harmony.dll"
Import-Module $harmony

$Script:Patches = @()


function Set-StaticPropertyGetter {
    param (
        [Parameter(Mandatory)]
        [Type] $Type,

nohwnd

Describe "a" {
    $Sources = @(
        [PSCustomObject]@{
            Advanced = @{
                Enabled = $true
            }
        }
        [PSCustomObject]@{
            Advanced = @{
                Enabled = $true

nohwnd

# Adds BeforeAll at the top of Tests file to make it follow Pester v5 recommendation of putting
# all code into Pester controlled blocks.

# DO this:
#  BeforeAll {
#     . $PSScriptRoot/Code.ps1
# }

# DO this:
#  BeforeAll {

nohwnd

# Adds BeforeAll at the top of Tests file to make it follow Pester v5 recommendation of putting
# all code into Pester controlled blocks.

# DO this:
#  BeforeAll {
#     . $PSScriptRoot/Code.ps1
# }

# DO this:
#  BeforeAll {

nohwnd

# Quickly measuring if it is better to call function in foreach loop or gerate the array and pass it in the function once
# and then iterate over the array inside of the function
"`n"
# cross function boundary 10,000 times
$script:b = 0
function a ($a) { $script:b += $a }
$sw = [Diagnostics.StopWatch]::StartNew()
foreach ($_ in 1..10000) {
    a 1
}

nohwnd

# output

Pester v4.9.0
Executing all tests in 'C:\Users\jajares\Dropbox\pester\parameters.tests.ps1'

Executing script C:\Users\jajares\Dropbox\pester\parameters.tests.ps1

  Describing a
    [+] b 31ms
    [+] c 15ms