Validation of the parameter $PesterResult value doesn't work as expected

[it-praktyk]

Even if in the parameter $PesterResult definitions is added (a code based on version 1.3.0 - please see the pull request #10 )

[Parameter(Mandatory = $true, Position = 0, ValueFromPipeline = $True, ValueFromPipelinebyPropertyName = $True, HelpMessage = 'Pester results Object', ParameterSetName = 'AllParamSet')]
        [Parameter(Mandatory = $true, Position = 0, ValueFromPipeline = $True, ValueFromPipelinebyPropertyName = $True, HelpMessage = 'Pester results Object', ParameterSetName = 'PassedOnlyParamSet')]
        [Parameter(Mandatory = $true, Position = 0, ValueFromPipeline = $True, ValueFromPipelinebyPropertyName = $True, HelpMessage = 'Pester results Object', ParameterSetName = 'FailedOnlyParamSet')]
        [Parameter(Mandatory = $true, Position = 0, ValueFromPipeline = $True, ValueFromPipelinebyPropertyName = $True, HelpMessage = 'Pester results Object', ParameterSetName = 'SummaryOnlyParamSet')]
        [Parameter(Mandatory = $false, Position = 0, ValueFromPipeline = $True, ValueFromPipelinebyPropertyName = $True, HelpMessage = 'Pester results Object', ParameterSetName = 'VersionOnlyParamSet')]
        [ValidateNotNullorEmpty()]
        [Array]$PesterResult,

the validation doesn't work as expected.

Additional validation on provided tests results need to be added. I'll do it soon as a additional commit for the pull request #10

[it-praktyk]

I just added explicit throw for that issue - the pull request it-praktyk@d766e5b what is the part of #10