Test credentials for local computer (update arg 2 on line 40 from $null to domain name for domain auth). Slightly modified from Ansible.

TestLocalCredential.ps1

Function Test-Credential {
    [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSAvoidUsingUserNameAndPassWordParams", "", Justification="We need to use the plaintext pass in the Win32 call, also the source isn't a secure string to using that is just a waste of time/code")]
    [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSAvoidUsingPlainTextForPassword", "", Justification="See above")]
    param([String]$Username, [String]$Password)

    $platform_util = @'
using System;
using System.Runtime.InteropServices;
namespace TempNamespace
{
    public class WinUserPInvoke
    {
        [DllImport("advapi32.dll", SetLastError = true)]
        public static extern bool LogonUser(
            string lpszUsername,
            string lpszDomain,
            string lpszPassword,
            UInt32 dwLogonType,
            UInt32 dwLogonProvider,
            out IntPtr phToken);
        [DllImport("kernel32.dll", SetLastError = true)]
        public static extern bool CloseHandle(
            IntPtr hObject);
    }
}
'@

    $original_tmp = $env:TMP
    $original_temp = $env:TEMP
    $env:TMP = $_remote_tmp
    $env:TEMP = $_remote_tmp
    Add-Type -TypeDefinition $platform_util
    $env:TMP = $original_tmp
    $env:TEMP = $original_temp

    $Logon32LogonInteractive = 2
    $LOGON32_PROVIDER_DEFAULT = 0

    $handle = [IntPtr]::Zero
    $logon_res = [TempNamespace.WinUserPInvoke]::LogonUser($Username, $null, $Password,
        $Logon32LogonInteractive, $LOGON32_PROVIDER_DEFAULT, [Ref]$handle)

    if ($logon_res) {
        $valid_credentials = $true
        [TempNamespace.WinUserPInvoke]::CloseHandle($handle) > $null
    } else {
        $err_code = [System.Runtime.InteropServices.Marshal]::GetLastWin32Error()
        # following errors indicate the creds are correct but the user was
        # unable to log on for other reasons, which we don't care about
        $success_codes = @(
            0x0000052F,  # ERROR_ACCOUNT_RESTRICTION
            0x00000530,  # ERROR_INVALID_LOGON_HOURS
            0x00000531,  # ERROR_INVALID_WORKSTATION
            0x00000569  # ERROR_LOGON_TYPE_GRANTED
        )

        if ($err_code -eq 0x0000052E) {
            # ERROR_LOGON_FAILURE - the user or pass was incorrect
            $valid_credentials = $false
        } elseif ($err_code -in $success_codes) {
            $valid_credentials = $true
        } else {
            # an unknown failure, raise an Exception for this
            $win32_exp = New-Object -TypeName System.ComponentModel.Win32Exception -ArgumentList $err_code
            $err_msg = "LogonUserW failed: $($win32_exp.Message) (Win32ErrorCode: $err_code)"
            throw New-Object -TypeName System.ComponentModel.Win32Exception -ArgumentList $err_code, $err_msg
        }
    }

    return $valid_credentials
}