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function New-Fixture {
<#
.SYNOPSIS
This function generates two scripts, one that defines a function
and another one that contains its tests.
.DESCRIPTION
This function generates two scripts, one that defines a function
and another one that contains its tests. The files are by default
placed in the current directory and are called and populated as such:
The script defining the function: .\Clean.ps1:
function Clean {
}
The script containg the example test .\Clean.Tests.ps1:
$here = Split-Path -Parent $MyInvocation.MyCommand.Path
$sut = (Split-Path -Leaf $MyInvocation.MyCommand.Path).Replace(".Tests.", ".")
. "$here\$sut"
Describe "Clean" {
It "does something useful" {
$false | Should Be $true
}
}
.PARAMETER Name
Defines the name of the function and the name of the test to be created.
.PARAMETER Path
Defines path where the test and the function should be created, you can use full or relative path.
If the parameter is not specified the scripts are created in the current directory.
.EXAMPLE
New-Fixture -Name Clean
Creates the scripts in the current directory.
.EXAMPLE
New-Fixture C:\Projects\Cleaner Clean
Creates the scripts in the C:\Projects\Cleaner directory.
.EXAMPLE
New-Fixture Cleaner Clean
Creates a new folder named Cleaner in the current directory and creates the scripts in it.
.LINK
Describe
Context
It
about_Pester
about_Should
#>
param (
[String]$Path = $PWD,
[Parameter(Mandatory=$true)]
[String]$Name
)
#region File contents
#keep this formatted as is. the format is output to the file as is, including indentation
$scriptCode = "function $name {`r`n`r`n}"
$testCode = '$here = Split-Path -Parent $MyInvocation.MyCommand.Path
$sut = (Split-Path -Leaf $MyInvocation.MyCommand.Path) -replace ''\.Tests\.'', ''.''
. "$here\$sut"
Describe "#name#" {
It "does something useful" {
$true | Should Be $false
}
}' -replace "#name#",$name
#endregion
$Path = $ExecutionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($Path)
Create-File -Path $Path -Name "$Name.ps1" -Content $scriptCode
Create-File -Path $Path -Name "$Name.Tests.ps1" -Content $testCode
}
function Create-File ($Path,$Name,$Content) {
if (-not (& $SafeCommands['Test-Path'] -Path $Path)) {
& $SafeCommands['New-Item'] -ItemType Directory -Path $Path | & $SafeCommands['Out-Null']
}
$FullPath = & $SafeCommands['Join-Path'] -Path $Path -ChildPath $Name
if (-not (& $SafeCommands['Test-Path'] -Path $FullPath)) {
& $SafeCommands['Set-Content'] -Path $FullPath -Value $Content -Encoding UTF8
& $SafeCommands['Get-Item'] -Path $FullPath
}
else
{
# This is deliberately not sent through $SafeCommands, because our own tests rely on
# mocking Write-Warning, and it's not really the end of the world if this call happens to
# be screwed up in an edge case.
Write-Warning "Skipping the file '$FullPath', because it already exists."
}
}