I am trying to get comfortable with XS modules, as the ability to convert C++ code to a perl module would be invaluable in the current problem I'm working on.

I have made it through some of the perlxstut examples, and my question is in regards to testing the XS module using 'dmake test'...

The idea was to make a test script to run 4 test cases on a simple XS module with a method called 'is_even' that takes an int and returns true if it is even.

My current "Mytest.t" looks like this: 

use Test::More tests => 4;
BEGIN {use_ok('Mytest')}

print &Mytest::is_even(0) == 1 ? "ok 2" : "not ok 2", "\n";
print &Mytest::is_even(1) == 0 ? "ok 3" : "not ok 3", "\n";
print &Mytest::is_even(2) == 1 ? "ok 4" : "not ok 4", "\n";

[download]

now when I run 'dmake test', I get the error message:

Looks like you planned 4 tests but only ran 1

The perlxstut says to modify the BEGIN block to "print 1..4", but anything I change in the BEGIN block leads to syntax errors.

I'm sure I am missing something very easy here, what am I doing wrong with the BEGIN block of my test code?

In reply to Testing a XS module by technojosh

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