From: Samuel Just <sjust@redhat.com>
Date: Tue, 7 Jul 2020 22:44:04 +0000 (-0700)
Subject: seastore/test_transaction_manager: add a test which forces an lba split
X-Git-Tag: v17.0.0~1776^2~1
X-Git-Url: http://git.apps.os.sepia.ceph.com/?a=commitdiff_plain;h=0a3b69ef1b6469c1ed6a13b7d9e0cedb5b63f3aa;p=ceph.git

seastore/test_transaction_manager: add a test which forces an lba split

Signed-off-by: Samuel Just <sjust@redhat.com>
---

diff --git a/src/test/crimson/seastore/test_transaction_manager.cc b/src/test/crimson/seastore/test_transaction_manager.cc
index 5c6cccbebefaf..d086c4ca34818 100644
--- a/src/test/crimson/seastore/test_transaction_manager.cc
+++ b/src/test/crimson/seastore/test_transaction_manager.cc
@@ -324,3 +324,21 @@ TEST_F(transaction_manager_test_t, inc_dec_ref)
     }
   });
 }
+
+TEST_F(transaction_manager_test_t, cause_lba_split)
+{
+  constexpr laddr_t SIZE = 4096;
+  run_async([this] {
+    for (unsigned i = 0; i < 200; ++i) {
+      auto t = create_transaction();
+      auto extent = alloc_extent(
+	t,
+	i * SIZE,
+	SIZE,
+	(char)(i & 0xFF));
+      ASSERT_EQ(i * SIZE, extent->get_laddr());
+      submit_transaction(std::move(t));
+    }
+    check_mappings();
+  });
+}