Custom asset handler messes unit test summary report

[ric maicle via Digitalmars-d-learn]

[dmd 2.090.1 linux 64-bit]

The following code does not report the correct unit test summary.
The report says 1 unit test passed.

~~~~~
shared static this() {
    import core.exception;
    assertHandler(&cah);
}

void
cah(string file, ulong line, string msg) nothrow {
    import core.stdc.stdio: printf;
    printf("==============================\n");
    printf("Assert error: %s %d: %s\n", file.ptr, line, msg.ptr);
    printf("==============================\n");
}

unittest {
    assert(false);
}
~~~~~