Testing PowerShell Fuzzy Parameter matching

get-input.ps1

function Get-Input {
[CmdletBinding()]
param (
  [string]$abcdef = 'exe',
  [parameter(ValueFromRemainingArguments = $true)][Object[]] $ignoredArguments
)
  $invocaton = $MyInvocation
  $argumentsPassed = ''
  foreach ($param in $PSBoundParameters.GetEnumerator()) {
    $argumentsPassed += "-$($param.Key) '$($param.Value -Join ' ')' "
  }

  Write-Output "Running $($invocaton.InvocationName) $argumentsPassed $ignoredArguments"
}

Get-Input -abc 'test'
Get-Input -abc 'test' -abcdef 'yes'
Get-Input -abcdef 'yes' -abc 'test'

function Get-InputSimple {
param (
  [string]$abcdef = 'exe'
)
  $invocaton = $MyInvocation
  $argumentsPassed = ''
  foreach ($param in $PSBoundParameters.GetEnumerator()) {
    $argumentsPassed += "-$($param.Key) '$($param.Value -Join ' ')' "
  }

  Write-Output "Running $($invocaton.InvocationName) $argumentsPassed $args"
}

Get-InputSimple -abc 'test'
Get-InputSimple -abc 'test' -abcdef 'yes'
Get-InputSimple -abcdef 'yes' -abc 'test'

output.log

C:\test> .\get-input.ps1
Running Get-Input -abcdef 'test'
Get-Input : Cannot bind parameter because parameter 'abcdef' is specified more than once. To provide multiple values to
parameters that can accept multiple values, use the array syntax. For example, "-parameter value1,value2,value3".
At C:\test\get-input.ps1:17 char:23
+ Get-Input -abc 'test' -abcdef 'yes'
+                       ~~~~~~~
    + CategoryInfo          : InvalidArgument: (:) [Get-Input], ParameterBindingException
    + FullyQualifiedErrorId : ParameterAlreadyBound,Get-Input

Get-Input : Cannot bind parameter because parameter 'abcdef' is specified more than once. To provide multiple values to
parameters that can accept multiple values, use the array syntax. For example, "-parameter value1,value2,value3".
At C:\test\get-input.ps1:18 char:25
+ Get-Input -abcdef 'yes' -abc 'test'
+                         ~~~~
    + CategoryInfo          : InvalidArgument: (:) [Get-Input], ParameterBindingException
    + FullyQualifiedErrorId : ParameterAlreadyBound,Get-Input

Running Get-InputSimple -abcdef 'test'
Get-InputSimple : Cannot bind parameter because parameter 'abcdef' is specified more than once. To provide multiple values to
parameters that can accept multiple values, use the array syntax. For example, "-parameter value1,value2,value3".
At C:\test\get-input.ps1:34 char:29
+ Get-InputSimple -abc 'test' -abcdef 'yes'
+                             ~~~~~~~
    + CategoryInfo          : InvalidArgument: (:) [Get-InputSimple], ParameterBindingException
    + FullyQualifiedErrorId : ParameterAlreadyBound,Get-InputSimple

Get-InputSimple : Cannot bind parameter because parameter 'abcdef' is specified more than once. To provide multiple values to
parameters that can accept multiple values, use the array syntax. For example, "-parameter value1,value2,value3".
At C:\test\get-input.ps1:35 char:31
+ Get-InputSimple -abcdef 'yes' -abc 'test'
+                               ~~~~
    + CategoryInfo          : InvalidArgument: (:) [Get-InputSimple], ParameterBindingException
    + FullyQualifiedErrorId : ParameterAlreadyBound,Get-InputSimple

I left out extra parameters being passed as I was not sure it was relevant. Other parameters not specified are either added to $ignoredArguments (cmdlet binding) or just left to $args.