To test a simple SOAPUI first we have to download SOAPUI .The SOAPUI is a opensource we can download easily.
Instructions for downloading SOAPUI for Windows.
Go to www.soapui.org
Click the SoapuI opensource to continue.
Click the Next to continue
Click Next to continue
Click again Next button until see the Installing window
Once installing jar files window will pop up.
Click the finish button.
New page will be opened as below.
Now its ready to test SOAPUI using WSDL.