Committed fix for RT#35140

[dbsrgits/DBM-Deep.git] / t / 19_crossref.t

diff --git a/t/19_crossref.t b/t/19_crossref.t
index 626873c..ff99319 100644 (file)
--- a/t/19_crossref.t
+++ b/t/19_crossref.t
@@ -2,42 +2,76 @@
 # DBM::Deep Test
 ##
 use strict;
-use Test::More tests => 5;
+use Test::More tests => 9;
+use Test::Exception;
+use t::common qw( new_fh );
 
 use_ok( 'DBM::Deep' );
 
-unlink "t/test.db";
-my $db = DBM::Deep->new( "t/test.db" );
+my ($fh2, $filename2) = new_fh();
+my $db2 = DBM::Deep->new( file => $filename2, fh => $fh2, );
 
-unlink "t/test2.db";
-my $db2 = DBM::Deep->new( "t/test2.db" );
+SKIP: {
+    skip "Apparently, we cannot detect a tied scalar?", 1;
+    tie my $foo, 'Tied::Scalar';
+    throws_ok {
+        $db2->{failure} = $foo;
+    } qr/Cannot store something that is tied\./, "tied scalar storage fails";
+}
 
-##
-# Create structure in $db
-##
-$db->import(
-       hash1 => {
-               subkey1 => "subvalue1",
-               subkey2 => "subvalue2"
-       }
-);
+{
+    tie my @foo, 'Tied::Array';
+    throws_ok {
+        $db2->{failure} = \@foo;
+    } qr/Cannot store something that is tied\./, "tied array storage fails";
+}
 
-is( $db->{hash1}{subkey1}, 'subvalue1', "Value imported correctly" );
-is( $db->{hash1}{subkey2}, 'subvalue2', "Value imported correctly" );
+{
+    tie my %foo, 'Tied::Hash';
+    throws_ok {
+        $db2->{failure} = \%foo;
+    } qr/Cannot store something that is tied\./, "tied hash storage fails";
+}
 
-##
-# Cross-ref nested hash accross DB objects
-##
-$db2->{copy} = $db->{hash1};
+{
+    my ($fh, $filename) = new_fh();
+    my $db = DBM::Deep->new( file => $filename, fh => $fh, );
 
-##
-# close, delete $db
-##
-undef $db;
-unlink "t/test.db";
+    ##
+    # Create structure in $db
+    ##
+    $db->import({
+        hash1 => {
+            subkey1 => "subvalue1",
+            subkey2 => "subvalue2",
+        }
+    });
+    is( $db->{hash1}{subkey1}, 'subvalue1', "Value imported correctly" );
+    is( $db->{hash1}{subkey2}, 'subvalue2', "Value imported correctly" );
+
+    # Test cross-ref nested hash accross DB objects
+    throws_ok {
+        $db2->{copy} = $db->{hash1};
+    } qr/Cannot store values across DBM::Deep files\. Please use export\(\) instead\./, "cross-ref fails";
+
+    # This error text is for when internal cross-refs are implemented
+    #} qr/Cannot cross-reference\. Use export\(\) instead\./, "cross-ref fails";
+
+    $db2->{copy} = $db->{hash1}->export;
+}
 
 ##
 # Make sure $db2 has copy of $db's hash structure
 ##
 is( $db2->{copy}{subkey1}, 'subvalue1', "Value copied correctly" );
 is( $db2->{copy}{subkey2}, 'subvalue2', "Value copied correctly" );
+
+package Tied::Scalar;
+sub TIESCALAR { bless {}, $_[0]; }
+sub FETCH{}
+
+package Tied::Array;
+sub TIEARRAY { bless {}, $_[0]; }
+
+package Tied::Hash;
+sub TIEHASH { bless {}, $_[0]; }