#Here is test file generated and what I added to it (Only Last Line):



# Before `make install' is performed this script should be runnable with
# `make test'. After `make install' it should work as `perl Integer-Doubler.t'

#########################

# change 'tests => 1' to 'tests => last_test_to_print';

use Test::More tests => 1;
BEGIN { use_ok('Integer::Doubler') };

#########################

# Insert your test code below, the Test::More module is use()ed here so read
# its man page ( perldoc Test::More ) for help writing this test script.

print "2 * 2 =", doubler(2); #<------here, line 16