]$ perl -wMstrict -e"if( my($test) = 0 ) { print 'Passed'; } else { print 'Failed'; }"
Can't declare stub in "my" at -e line 1, near ") ="
Execution of -e aborted due to compilation errors.

]$ perl -wMstrict -e"if( my($test) = '' ) { print 'Passed'; } else { print 'Failed'; }"
Can't declare stub in "my" at -e line 1, near ") ="
Execution of -e aborted due to compilation errors.

]$ perl -wMstrict -e"if( my($test) = undef ) { print 'Passed'; } else { print 'Failed'; }"
Can't declare stub in "my" at -e line 1, near ") ="
Execution of -e aborted due to compilation errors.

]$ perl -wMstrict -e "if( my $test = undef ) { print 'Passed'; } else { print 'Failed'; }"
syntax error at -e line 1, near "my  ="
Execution of -e aborted due to compilation errors.

##</code><code>##

]$ perl -wMstrict -e 'if( my ($test) = undef ) { print "Passed"; } else { print "Failed"; }'
Passed

]$ perl -wMstrict -e 'if( my $test = undef ) { print "Passed"; } else { print "Failed"; }'
Failed