Set-StrictMode -Version Latest

Describe "Module scope separation" {

Context "When users define variables with the same name as Pester parameters" {

$test = "This is a test."

It "does not hide user variables" {

$test | Should Be 'This is a test.'

}

}

It "Does not expose Pester implementation details to the SUT" {

# Changing the Get-PesterResult function's name would cause this test to pass artificially.

# TODO : come up with a better way of verifying that only the desired commands from the Pester

# module are visible to the SUT.

(Get-Item function:${directorySeparatorChar}Get-PesterResult -ErrorAction SilentlyContinue) | Should Be $null

}

}

Describe "Executing test code inside a module" {

New-Module -Name TestModule {

function InternalFunction { 'I am the internal function' }

function PublicFunction { InternalFunction }

Export-ModuleMember -Function PublicFunction

} | Import-Module -Force

It "Cannot call module internal functions, by default" {

{ InternalFunction } | Should Throw

}

InModuleScope TestModule {

It "Can call module internal functions using InModuleScope" {

InternalFunction | Should Be 'I am the internal function'

}

It "Can mock functions inside the module without using Mock -ModuleName" {

Mock InternalFunction { 'I am the mock function.' }

InternalFunction | Should Be 'I am the mock function.'

}

}

Remove-Module TestModule -Force

}