bug#72369: srfi-64: test-end fails to signal an error with null runner

Hello,

I think I found a bug in (srfi srfi-64) module shipped with GNU Guile.

The specification says the following about the test-end:

> An error is reported if the suite-name does not match the current test group
> name.

Thus the following should signal an error:

    (use-modules (srfi srfi-64))
    (let ((r (test-runner-null)))
      (test-runner-current r)
      (test-begin "x")
      (test-end   "y"))

However it does not.

Have a nice day
Tomas Volf