Add debugging of undefer code reentrancy when a test environment is detected

[p5sagit/Class-Accessor-Grouped.git] / t / accessors_xs_cachedwarn.t

diff --git a/t/accessors_xs_cachedwarn.t b/t/accessors_xs_cachedwarn.t
new file mode 100644 (file)
index 0000000..6b17dd4
--- /dev/null
+++ b/t/accessors_xs_cachedwarn.t
@@ -0,0 +1,41 @@
+use strict;
+use warnings;
+use FindBin qw($Bin);
+use File::Spec::Functions;
+use File::Spec::Unix (); # need this for %INC munging
+use Test::More;
+use lib 't/lib';
+
+BEGIN {
+    require Class::Accessor::Grouped;
+    my $xsa_ver = $Class::Accessor::Grouped::__minimum_xsa_version;
+    eval {
+        require Class::XSAccessor;
+        Class::XSAccessor->VERSION ($xsa_ver);
+    };
+    plan skip_all => "Class::XSAccessor >= $xsa_ver not available"
+      if $@;
+}
+
+use AccessorGroupsSubclass;
+$Class::Accessor::Grouped::USE_XS = 1;
+
+my $obj = AccessorGroupsSubclass->new;
+my $deferred_stub = AccessorGroupsSubclass->can('singlefield');
+
+my @w;
+{
+  local $SIG{__WARN__} = sub { push @w, @_ };
+  is ($obj->$deferred_stub(1), 1, 'Set');
+  is ($obj->$deferred_stub, 1, 'Get');
+  is ($obj->$deferred_stub(2), 2, 'ReSet');
+  is ($obj->$deferred_stub, 2, 'ReGet');
+}
+
+is (
+  scalar (grep { $_ =~ /^\QDeferred version of method AccessorGroups::singlefield invoked more than once/ } @w),
+  3
+  '3 warnings produced as expected on cached invocation during testing'
+);
+
+done_testing;