Bug 19759: Make TestBuilder generates only 2 decimals for float

For instance items.replacementprice is decimal(8,2) but more than 2 decimals are generated.

It leads to issues when we compare expected objects:

    #          got: '135623.866142537'
    #     expected: '135623.87'

Test plan:
  prove t/db_dependent/TestBuilder.t
must return green

Signed-off-by: Dominic Pichette <dominic@inlibro.com>

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Somehow I have the feeling that we should allow more decimals sometimes
and perhaps have a number of decimals parameter or so. Think of fields
like currency or discount.
But the current issues justify this change.

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>

t/db_dependent/TestBuilder.t

@@ -85,7 +85,7 @@ subtest 'Build all sources' => sub {
 
 
 subtest 'Test length of some generated fields' => sub {
-    plan tests => 2;
+    plan tests => 3;
 
     # Test the length of a returned character field
     my $bookseller = $builder->build({ source  => 'Aqbookseller' });
@@ -94,6 +94,9 @@ subtest 'Test length of some generated fields' => sub {
         'The length for a generated string (phone) should not be zero' );
     is( length( $bookseller->{phone} ) <= $max, 1,
         'Check maximum length for a generated string (phone)' );
+
+    my $item = $builder->build({ source => 'Item' });
+    is( $item->{replacementprice}, sprintf("%.2f", $item->{replacementprice}), "The number of decimals for floats should not be more than 2" );
 };
 
 

t/lib/TestBuilder.pm

@@ -417,7 +417,7 @@ sub _gen_real {
     if( defined( $params->{info}->{size} ) ) {
         $max = 10 ** ($params->{info}->{size}->[0] - $params->{info}->{size}->[1]);
     }
-    return rand($max) + 1;
+    return sprintf("%.2f", rand($max)+1);
 }
 
 sub _gen_date {