Assert-NotNull.ps1
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# Copyright 2012 - 2015 Aaron Jensen # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. function Assert-NotNull { <# .SYNOPSIS Asserts that an object isn't `$null`. .DESCRIPTION .EXAMPLE Assert-NotNull $null Demonstrates how to fail a test by asserting that `$null` isn't `$null`. .EXAMPLE Assert-NotNull $object 'The foo didn''t bar!' Demonstrates how to give a descriptive error about why the assertion might be failing. #> [CmdletBinding()] param( [Parameter(Position=0)] [object] # The object to check. $InputObject, [Parameter(Position=1)] [string] # A reason why the assertion fails. $Message ) Set-StrictMode -Version 'Latest' if( $InputObject -eq $null ) { Fail ("Value is null. {0}" -f $message) } } Set-Alias -Name 'Assert-IsNotNull' -Value 'Assert-NotNull' |