Assert-LastProcessFailed.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-LastProcessFailed { <# .SYNOPSIS Asserts that the last process failed by checking PowerShell's `$LastExitCode` automatic variable. .DESCRIPTION A process fails if `$LastExitCode` is non-zero. .EXAMPLE Assert-LastProcessFailed Demonstrates how to assert that the last process failed. .EXAMPLE Assert-LastProcessFailed 'cmd.exe' Demonstrates how to show a custom message when the assertion fails. #> [CmdletBinding()] param( [Parameter(Position=0)] [string] # The message to show if the assertion fails. $Message ) Set-StrictMode -Version 'Latest' if( $LastExitCode -eq 0 ) { Fail "Expected process to fail, but it succeeded (exit code: $LastExitCode). $Message" } } |