Add t/314_method_leak.t for memory leak testing

diff --git a/t/314_method_leak.t b/t/314_method_leak.t
new file mode 100755 (executable)
index 0000000..6e97451
--- /dev/null
+++ b/t/314_method_leak.t
@@ -0,0 +1,59 @@
+use strict;
+use warnings;
+
+use Test::More;
+use Devel::Peek;
+
+BEGIN {
+    eval "use Test::LeakTrace;";
+    plan skip_all => "Test::LeakTrace is required for this test" if $@;
+}
+
+use Test::More tests => 6;
+use Class::MOP;
+
+{
+    package Foo;
+    use metaclass;
+}
+
+leaks_cmp_ok {
+    my $meta = Foo->meta;
+    $meta->add_method(foo => sub{ 42 });
+    $meta->remove_method('foo');
+} '<=', 0, 'add_method and remove_method';
+
+
+my $expected = ($] == 5.010_000) ? 1 : 0; # for a bug on 5.10.0
+
+leaks_cmp_ok {
+    my $meta = Foo->meta;
+    $meta->add_attribute(foo => (reader => 'foo'));
+    $meta->remove_attribute('foo');
+} '<=', $expected, 'add_attribute with reader and remove_attribute';
+
+leaks_cmp_ok {
+    my $meta = Foo->meta;
+    $meta->add_attribute(foo => (writer => 'foo'));
+    $meta->remove_attribute('foo');
+} '<=', $expected, 'add_attribute with writer and remove_attribute';
+
+
+leaks_cmp_ok {
+    my $meta = Foo->meta;
+    $meta->add_attribute(foo => (accessor => 'foo'));
+    $meta->remove_attribute('foo');
+} '<=', $expected, 'add_attribute with accessor and remove_attribute';
+
+leaks_cmp_ok {
+    my $meta = Foo->meta;
+    $meta->add_attribute(foo => (predicate => 'foo'));
+    $meta->remove_attribute('foo');
+} '<=', $expected, 'add_attribute with predicate and remove_attribute';
+
+leaks_cmp_ok {
+    my $meta = Foo->meta;
+    $meta->add_attribute(foo => (clearer => 'foo'));
+    $meta->remove_attribute('foo');
+} '<=', $expected, 'add_attribute with clearer and remove_attribute';
+