Problem in synopsis of Test::Data?

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

The following example given in the Test::Data modules t directory

#!/usr/bin/perl
use Test::More tests => 2;
use Test::Data qw(Function);
 
sub fooey($$) { 1 }
 
prototype_ok( &fooey, '$$', 'Double scalar fooey' );
prototype_ok(  &fooey, '$$' );
[download]

gives an error as 1..2 Type of arg 1 to Test::Data::Function::prototype_ok must be sub (not subroutine entry) at func.pl line 10, near "'Double scalar fooey' )" Type of arg 1 to Test::Data::Function::prototype_ok must be sub (not subroutine entry) at func.pl line 11, near "'$$' )" Execution of func.pl aborted due to compilation errors.

Edit by BazB: change title from "Query"

Comment on Problem in synopsis of Test::Data? Download Code

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Re: Problem in synopsis of Test::Data? by BrowserUk (Patriarch) on Jul 01, 2004 at 12:37 UTC
You need to backslash the subs so as to pass a reference to them, not call them. `prototype_ok( \&fooey, '$$', 'Double scalar fooey' ); prototype_ok( \&fooey, '$$' );` [download] And yes, the t\function.t has it wrong, as is the POD description for prototype_ok(). Examine what is said, not who speaks. "Efficiency is intelligent laziness." -David Dunham "Think for yourself!" - Abigail "Memory, processor, disk in that order on the hardware side. Algorithm, algoritm, algorithm on the code side." - tachyon	[reply] [d/l]

Replies are listed 'Best First'.

Re: Problem in synopsis of Test::Data?
by BrowserUk (Patriarch) on Jul 01, 2004 at 12:37 UTC

You need to backslash the subs so as to pass a reference to them, not call them.

prototype_ok( \&fooey, '$$', 'Double scalar fooey' );
prototype_ok( \&fooey, '$$' );
[download]

And yes, the t\function.t has it wrong, as is the POD description for prototype_ok().

Examine what is said, not who speaks.

"Efficiency is intelligent laziness." -David Dunham
"Think for yourself!" - Abigail
"Memory, processor, disk in that order on the hardware side. Algorithm, algoritm, algorithm on the code side." - tachyon

[reply]
[d/l]