The MSDN docs state that I can find the WCF Test Client in:
C:\\Program Files\\Microsoft Visual Studio 9.0\\Common7\\IDE\\
FYI - I could not find WcfTestClient.exe
under any of the listed file paths. It turns out it needed to be installed by Visual Studio Installer. When you launch the installer and modify your version of VS, make sure Windows Communication Foundation
is checked under Optional. It may seem obvious, but it wasn't to me and therefore might not be obvious to everyone else.