add more assertions around moved object

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67630 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 8 insertions, 1 deletions

diff --git a/test/ruby/test_gc_compact.rb b/test/ruby/test_gc_compact.rb
index 0fc27a287a..09b8d9d477 100644
--- a/test/ruby/test_gc_compact.rb
+++ b/test/ruby/test_gc_compact.rb
@@ -76,7 +76,14 @@ class TestGCCompact < Test::Unit::TestCase
     list_of_objects, addresses, new_tenant = try_to_move_objects
 
     # This is the object that used to be in new_object's position
-    previous_tenant = list_of_objects[addresses.index(memory_location(new_tenant))]
+    loc = memory_location(new_tenant)
+    assert loc, "should have a memory location"
+
+    address_idx = addresses.index(loc)
+    assert address_idx, "should have an address index"
+
+    previous_tenant = list_of_objects[address_idx]
+    assert previous_tenant, "should have a previous tenant"
 
     assert_not_equal previous_tenant.object_id, new_tenant.object_id