organise code into separate files

3 files changed, 52 insertions, 35 deletions

diff --git a/challenge-135/steven-wilson/perl/ch-2.pl b/challenge-135/steven-wilson/perl/ch-2.pl
index b6e16c501c..f8f05e27bd 100644
--- a/challenge-135/steven-wilson/perl/ch-2.pl
+++ b/challenge-135/steven-wilson/perl/ch-2.pl
@@ -1,43 +1,14 @@
 #!/usr/bin/env perl
 # Week 135 Task 2
 # Validate SEDOL
+# usage: $ perl ch-2.pl <SEDOL number>
+# tests: $ prove -l t/01_validate_sedol.t
 
 use strict;
 use warnings;
 use feature qw/ say /;
-use Test::More;
-use Test::Exception;
+use lib 'lib';
+use SEDOL;
 
-ok( validate_sedol('2936921') == 1, "Valid SEDOL" );
-ok( validate_sedol('1234567') == 0, "Invalid SEDOL" );
-ok( validate_sedol('B0YBKL9') == 1, "Valid SEDOL" );
-dies_ok { validate_sedol('B0YBKLA'), } 'Die when check digit not a digit';
-dies_ok { validate_sedol('B0YBKLF9'), } "Die when SEDOL not correct length";
-dies_ok { validate_sedol('#0YDK29'), } "Die when invalid character";
-done_testing();
-
-sub validate_sedol {
-    my $input = shift;
-    length $input == 7 or die "Invalid SEDOL number, not correct length\n";
-    my $code  = substr $input, 0, 6;
-    my $check = substr $input, 6, 1;
-    $check =~ /[0-9]/ or die "Invalid SEDOL number, invalid check digit\n";
-    $check == get_sedol_check_digit($code);
-}
-
-sub get_sedol_check_digit {
-    my $code   = shift;
-    my @weight = qw/ 1 3 1 7 3 9 1 /;
-    $code =~ /[0-9A-Z]{6}/ or die "Invalid SEDOL number, invalid character\n";
-    my @code = split //, $code;
-    my $sum  = 0;
-    for ( my $i = 0; $i < 6; $i++ ) {
-        if ( ord( $code[$i] ) < 58 ) {
-            $sum += ( $code[$i] * $weight[$i] );
-        }
-        else {
-            $sum += ( ( ord( $code[$i] ) - 64 + 9 ) * $weight[$i] );
-        }
-    }
-    return ( ( 10 - ( $sum % 10 ) ) % 10 );
-}
+my $input = $ARGV[0];
+say validate_sedol($input);
diff --git a/challenge-135/steven-wilson/perl/lib/SEDOL.pm b/challenge-135/steven-wilson/perl/lib/SEDOL.pm
new file mode 100644
index 0000000000..6f224e9b49
--- /dev/null
+++ b/challenge-135/steven-wilson/perl/lib/SEDOL.pm
@@ -0,0 +1,34 @@
+package SEDOL 0.001;
+use strict;
+use warnings;
+use parent qw/ Exporter /;
+
+our @EXPORT = qw/ validate_sedol /;
+
+sub validate_sedol {
+    my $input = shift;
+    length $input == 7 or die "Invalid SEDOL number, not correct length\n";
+    my $code  = substr $input, 0, 6;
+    my $check = substr $input, 6, 1;
+    $check =~ /[0-9]/ or die "Invalid SEDOL number, invalid check digit\n";
+    $check == get_sedol_check_digit($code) ? return 1 : return 0; 
+}
+
+sub get_sedol_check_digit {
+    my $code   = shift;
+    my @weight = qw/ 1 3 1 7 3 9 1 /;
+    $code =~ /[0-9A-Z]{6}/ or die "Invalid SEDOL number, invalid character\n";
+    my @code = split //, $code;
+    my $sum  = 0;
+    for ( my $i = 0; $i < 6; $i++ ) {
+        if ( ord( $code[$i] ) < 58 ) {
+            $sum += ( $code[$i] * $weight[$i] );
+        }
+        else {
+            $sum += ( ( ord( $code[$i] ) - 64 + 9 ) * $weight[$i] );
+        }
+    }
+    return ( ( 10 - ( $sum % 10 ) ) % 10 );
+}
+
+1;
diff --git a/challenge-135/steven-wilson/perl/t/01_validate_sedol.t b/challenge-135/steven-wilson/perl/t/01_validate_sedol.t
new file mode 100644
index 0000000000..8057eb48fe
--- /dev/null
+++ b/challenge-135/steven-wilson/perl/t/01_validate_sedol.t
@@ -0,0 +1,12 @@
+use strict;
+use warnings;
+use Test::More tests => 6;
+use Test::Exception;
+use SEDOL;
+
+ok( validate_sedol('2936921') == 1, "Valid SEDOL" );
+ok( validate_sedol('1234567') == 0, "Invalid SEDOL" );
+ok( validate_sedol('B0YBKL9') == 1, "Valid SEDOL" );
+dies_ok { validate_sedol('B0YBKLA'), } 'Die when check digit not a digit';
+dies_ok { validate_sedol('B0YBKLF9'), } "Die when SEDOL not correct length";
+dies_ok { validate_sedol('#0YDK29'), } "Die when invalid character";