The completion hint for the QTest macros (probably for other macros too, need to verify) like QFAIL, QVERIFY, etc. does not show the macro parameter list but rather the parameter list for the underlying function.

So instead

#define QFAIL(message) 

you see

void QTest::qFail(const char *statementStr, const char *file, int line) 

as function completion hint, like shown in the attached screenshot.