Tests if web hook exists on supplied repository

Test-BitbucketRepositoryHook.ps1

[OutputType([bool])]
Param(
    [parameter(Mandatory=$true)]
    [string]
    [ValidateNotNullOrEmpty()] $BitbucketUser,

    [parameter(Mandatory=$true)]
    [string]
    [ValidateNotNullOrEmpty()] $BitbucketPassword,

    [parameter(Mandatory=$true)]
    [string]
    [ValidateNotNullOrEmpty()] $RepositoryUserSlug,

    [parameter(Mandatory=$true)]
    [string]
    [ValidateNotNullOrEmpty()] $WebHookUrl
)
[string] $RepositoryHooksUrl    = "https://api.bitbucket.org/2.0/repositories/$RepositoryUserSlug/hooks"
[string] $BasicAuth             = [System.Convert]::ToBase64String(
                                    [System.Text.Encoding]::UTF8.GetBytes("${BitbucketUser}:${BitbucketPassword}")
                                  )
[hashtable] $RequestHeaders = @{"Authorization" = "Basic $BasicAuth"}
[string[]] $Urls            = @()
[bool] $HasMorePages        = $false
Do {
    $Result = Invoke-RestMethod -Uri $RepositoryHooksUrl -Headers $RequestHeaders -Method Get
    if (($Result.values|Measure-Object).Count -gt 0)
    {
        $Urls += ($Result.values| % url)
    }
    $HasMorePages    = (![string]::IsNullOrWhiteSpace($Result.Next))
    $RepositoryHooksUrl = $Result.Next
} While($HasMorePages)
($Urls | Where-Object { $WebHookUrl -eq $_ } | Measure-Object).Count -gt 0