Program to check AllTests.java is calling all junit tests after running ant test on it

I have a java project with ant build file and junit tests. There is a folder named 'test' which contains all the test files with their names ending on *Test.java. I have another file AllTests.java which is calling all these *Test.java files.

When I run 'ant test' on Tests.java, it builds a junit test report file in .txt format in another folder. I want to make sure that AllTests.java is calling all the *Test.java files in it.

Thanks in advance