Bring out the big-paranoia-harness - make describe_env infallible

[dbsrgits/DBIx-Class.git] / t / 67pager.t

diff --git a/t/67pager.t b/t/67pager.t
index b7eb2ca..994cf40 100644 (file)
--- a/t/67pager.t
+++ b/t/67pager.t
@@ -1,9 +1,10 @@
+BEGIN { do "./t/lib/ANFANG.pm" or die ( $@ || $! ) }
+
 use strict;
 use warnings;
 
 use Test::More;
-use Test::Exception;
-use lib qw(t/lib);
+
 use DBICTest;
 
 my $schema = DBICTest->init_schema();
@@ -70,12 +71,14 @@ $it = $rs->search(
   { order_by => 'title',
     rows => 3 }
 );
-my $page = $it->page(2);
 
-is( $page->count, 2, "standard resultset paged rs count ok" );
+{
+  my $page = $it->page(2);
 
-is( $page->next->title, "Generic Manufactured Singles", "second page of standard resultset ok" );
+  is( $page->count, 2, "standard resultset paged rs count ok" );
 
+  is( $page->next->title, "Generic Manufactured Singles", "second page of standard resultset ok" );
+}
 
 # test software-based limit paging
 $it = $rs->search(
@@ -111,7 +114,7 @@ $it = $rs->search({}, {
 });
 
 my $row = $rs->search({}, {
-    order_by => 'cdid', 
+    order_by => 'cdid',
     offset => 3,
     rows => 1
 })->single;
@@ -186,5 +189,40 @@ $schema->default_resultset_attributes({ rows => 5 });
 
 is($p->(), 5, 'default rows is 5');
 
+# does serialization work (preserve laziness, while preserving state if exits)
+$qcnt = 0;
+$it = $rs->search(
+    {},
+    { order_by => 'title',
+      rows => 5,
+      page => 2 }
+);
+$pager = $it->pager;
+is ($qcnt, 0, 'No queries on rs/pager creation');
+
+# test *requires* it to be Storable
+$it = do {
+  local $DBIx::Class::ResultSourceHandle::thaw_schema = $schema;
+  Storable::dclone ($it);
+};
+is ($qcnt, 0, 'No queries on rs/pager freeze/thaw');
+
+is( $it->pager->entries_on_this_page, 1, "entries_on_this_page ok for page 2" );
+
+is ($qcnt, 1, 'Count fired to get pager page entries');
+
+$rs->create({ title => 'bah', artist => 1, year => 2011 });
+
+$qcnt = 0;
+# test *requires* it to be Storable
+$it = do {
+  local $DBIx::Class::ResultSourceHandle::thaw_schema = $schema;
+  Storable::dclone ($it);
+};
+is ($qcnt, 0, 'No queries on rs/pager freeze/thaw');
+
+is( $it->pager->entries_on_this_page, 1, "entries_on_this_page ok for page 2, even though underlying count changed" );
+
+is ($qcnt, 0, 'No count fired on pre-existing total count');
 
 done_testing;