Assert-NoError.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-NoError { <# .SYNOPSIS Tests that the `$Error` stack is empty. .DESCRIPTION I guess you could just do `Assert-Equal 0 $Error.Count`, but `Assert-NoError` is simpler. .EXAMPLE Assert-NoError Demonstrates how to assert that there are no errors in the `$Error` stack. .EXAMPLE Assert-NoError -Message 'cmd.exe failed to install junction!' Demonstrates how to show a descriptive message when there are errors in the `$Error` stack. #> [CmdletBinding()] param( [Parameter(Position=0)] [string] # The message to show when the assertion fails. $Message ) Set-StrictMode -Version 'Latest' if( $Global:Error.Count -gt 0 ) { $errors = $Global:Error | ForEach-Object { $_; if( (Get-Member 'ScriptStackTrace' -InputObject $_) ) { $_.ScriptStackTrace } ; "`n" } | Out-String Fail "Found $($Global:Error.Count) errors, expected none. $Message`n$errors" } } Set-Alias -Name 'Assert-NoErrors' -Value 'Assert-NoError' |