X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Ftest%2Flibrbd%2Ftest_mock_ObjectWatcher.cc;fp=src%2Fceph%2Fsrc%2Ftest%2Flibrbd%2Ftest_mock_ObjectWatcher.cc;h=b17a55f3979e5271627d4313869386dc8a42702e;hb=812ff6ca9fcd3e629e49d4328905f33eee8ca3f5;hp=0000000000000000000000000000000000000000;hpb=15280273faafb77777eab341909a3f495cf248d9;p=stor4nfv.git

diff --git a/src/ceph/src/test/librbd/test_mock_ObjectWatcher.cc b/src/ceph/src/test/librbd/test_mock_ObjectWatcher.cc
new file mode 100644
index 0000000..b17a55f
--- /dev/null
+++ b/src/ceph/src/test/librbd/test_mock_ObjectWatcher.cc
@@ -0,0 +1,404 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "test/librbd/test_mock_fixture.h"
+#include "test/librbd/test_support.h"
+#include "test/librbd/mock/MockImageCtx.h"
+#include "test/librados_test_stub/MockTestMemIoCtxImpl.h"
+#include "test/librados_test_stub/MockTestMemRadosClient.h"
+#include "common/Cond.h"
+#include "common/Mutex.h"
+#include "librados/AioCompletionImpl.h"
+#include "librbd/ObjectWatcher.h"
+#include "gmock/gmock.h"
+#include "gtest/gtest.h"
+#include <list>
+
+namespace librbd {
+
+namespace {
+
+struct MockObjectWatcher : public ObjectWatcher<MockImageCtx> {
+  std::string oid;
+
+  MockObjectWatcher(MockImageCtx &mock_image_ctx, const std::string &oid)
+    : ObjectWatcher<MockImageCtx>(mock_image_ctx.md_ctx,
+                                  mock_image_ctx.op_work_queue),
+      oid(oid) {
+  }
+
+  virtual std::string get_oid() const override {
+    return oid;
+  }
+
+  virtual void handle_notify(uint64_t notify_id, uint64_t handle,
+                             bufferlist &bl) {
+  }
+};
+
+} // anonymous namespace
+
+} // namespace librbd
+
+// template definitions
+#include "librbd/ObjectWatcher.cc"
+template class librbd::ObjectWatcher<librbd::MockImageCtx>;
+
+namespace librbd {
+
+using ::testing::_;
+using ::testing::DoDefault;
+using ::testing::Invoke;
+using ::testing::InSequence;
+using ::testing::Return;
+using ::testing::SaveArg;
+using ::testing::WithArg;
+
+class TestMockObjectWatcher : public TestMockFixture {
+public:
+  TestMockObjectWatcher() : m_lock("TestMockObjectWatcher::m_lock") {
+  }
+
+  virtual void SetUp() {
+    TestMockFixture::SetUp();
+
+    m_oid = get_temp_image_name();
+
+    bufferlist bl;
+    ASSERT_EQ(0, m_ioctx.write_full(m_oid, bl));
+  }
+
+  void expect_aio_watch(MockImageCtx &mock_image_ctx, int r,
+                        const std::function<void()> &action = std::function<void()>()) {
+    librados::MockTestMemIoCtxImpl &mock_io_ctx(get_mock_io_ctx(
+      mock_image_ctx.md_ctx));
+    librados::MockTestMemRadosClient *mock_rados_client(
+      mock_io_ctx.get_mock_rados_client());
+
+    auto &expect = EXPECT_CALL(mock_io_ctx, aio_watch(m_oid, _, _, _));
+    if (r < 0) {
+      expect.WillOnce(DoAll(WithArg<1>(Invoke([this, mock_rados_client, r, action](librados::AioCompletionImpl *c) {
+                                if (action) {
+                                  action();
+                                }
+
+                                c->get();
+                                mock_rados_client->finish_aio_completion(c, r);
+                                notify_watch();
+                              })),
+                            Return(0)));
+    } else {
+      expect.WillOnce(DoAll(SaveArg<3>(&m_watch_ctx),
+                            Invoke([this, &mock_io_ctx, action](const std::string& o,
+                                                                librados::AioCompletionImpl *c,
+                                                                uint64_t *handle,
+                                                                librados::WatchCtx2 *ctx) {
+                                if (action) {
+                                  action();
+                                }
+
+                                mock_io_ctx.do_aio_watch(o, c, handle, ctx);
+                                notify_watch();
+                              }),
+                            Return(0)));
+    }
+  }
+
+  void expect_aio_unwatch(MockImageCtx &mock_image_ctx, int r,
+                          const std::function<void()> &action = std::function<void()>()) {
+    librados::MockTestMemIoCtxImpl &mock_io_ctx(get_mock_io_ctx(
+      mock_image_ctx.md_ctx));
+
+    auto &expect = EXPECT_CALL(mock_io_ctx, aio_unwatch(_, _));
+    if (r < 0) {
+      expect.WillOnce(DoAll(Invoke([this, &mock_io_ctx, r, action](uint64_t handle,
+                                                                   librados::AioCompletionImpl *c) {
+                                if (action) {
+                                  action();
+                                }
+
+                                librados::AioCompletionImpl *dummy_c = new librados::AioCompletionImpl();
+                                mock_io_ctx.do_aio_unwatch(handle, dummy_c);
+                                ASSERT_EQ(0, dummy_c->wait_for_complete());
+                                dummy_c->release();
+
+                                c->get();
+                                mock_io_ctx.get_mock_rados_client()->finish_aio_completion(c, r);
+                                notify_watch();
+                              }),
+                            Return(0)));
+    } else {
+      expect.WillOnce(DoAll(Invoke([this, &mock_io_ctx, action](uint64_t handle,
+                                                                librados::AioCompletionImpl *c) {
+                                if (action) {
+                                  action();
+                                }
+
+                                mock_io_ctx.do_aio_unwatch(handle, c);
+                                notify_watch();
+                              }),
+                            Return(0)));
+    }
+  }
+
+  std::string m_oid;
+  librados::WatchCtx2 *m_watch_ctx = nullptr;
+
+  void notify_watch() {
+    Mutex::Locker locker(m_lock);
+    ++m_watch_count;
+    m_cond.Signal();
+  }
+
+  bool wait_for_watch(MockImageCtx &mock_image_ctx, size_t count) {
+    Mutex::Locker locker(m_lock);
+    while (m_watch_count < count) {
+      if (m_cond.WaitInterval(m_lock, utime_t(10, 0)) != 0) {
+        return false;
+      }
+    }
+    return true;
+  }
+
+  Mutex m_lock;
+  Cond m_cond;
+  size_t m_watch_count = 0;
+};
+
+TEST_F(TestMockObjectWatcher, Success) {
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockImageCtx mock_image_ctx(*ictx);
+  MockObjectWatcher mock_image_watcher(mock_image_ctx, m_oid);
+
+  InSequence seq;
+  expect_aio_watch(mock_image_ctx, 0);
+  expect_aio_unwatch(mock_image_ctx, 0);
+
+  C_SaferCond register_ctx;
+  mock_image_watcher.register_watch(&register_ctx);
+  ASSERT_EQ(0, register_ctx.wait());
+
+  C_SaferCond unregister_ctx;
+  mock_image_watcher.unregister_watch(&unregister_ctx);
+  ASSERT_EQ(0, unregister_ctx.wait());
+}
+
+TEST_F(TestMockObjectWatcher, RegisterError) {
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockImageCtx mock_image_ctx(*ictx);
+  MockObjectWatcher mock_image_watcher(mock_image_ctx, m_oid);
+
+  InSequence seq;
+  expect_aio_watch(mock_image_ctx, -EINVAL);
+
+  C_SaferCond register_ctx;
+  mock_image_watcher.register_watch(&register_ctx);
+  ASSERT_EQ(-EINVAL, register_ctx.wait());
+}
+
+TEST_F(TestMockObjectWatcher, UnregisterError) {
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockImageCtx mock_image_ctx(*ictx);
+  MockObjectWatcher mock_image_watcher(mock_image_ctx, m_oid);
+
+  InSequence seq;
+  expect_aio_watch(mock_image_ctx, 0);
+  expect_aio_unwatch(mock_image_ctx, -EINVAL);
+
+  C_SaferCond register_ctx;
+  mock_image_watcher.register_watch(&register_ctx);
+  ASSERT_EQ(0, register_ctx.wait());
+
+  C_SaferCond unregister_ctx;
+  mock_image_watcher.unregister_watch(&unregister_ctx);
+  ASSERT_EQ(-EINVAL, unregister_ctx.wait());
+}
+
+TEST_F(TestMockObjectWatcher, Reregister) {
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockImageCtx mock_image_ctx(*ictx);
+  MockObjectWatcher mock_image_watcher(mock_image_ctx, m_oid);
+
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+  expect_aio_watch(mock_image_ctx, 0);
+  expect_aio_unwatch(mock_image_ctx, 0);
+  expect_aio_watch(mock_image_ctx, 0);
+  expect_aio_unwatch(mock_image_ctx, 0);
+
+  C_SaferCond register_ctx;
+  mock_image_watcher.register_watch(&register_ctx);
+  ASSERT_EQ(0, register_ctx.wait());
+
+  assert(m_watch_ctx != nullptr);
+  m_watch_ctx->handle_error(0, -ESHUTDOWN);
+
+  // wait for recovery unwatch/watch
+  ASSERT_TRUE(wait_for_watch(mock_image_ctx, 3));
+
+  C_SaferCond unregister_ctx;
+  mock_image_watcher.unregister_watch(&unregister_ctx);
+  ASSERT_EQ(0, unregister_ctx.wait());
+}
+
+TEST_F(TestMockObjectWatcher, ReregisterUnwatchError) {
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockImageCtx mock_image_ctx(*ictx);
+  MockObjectWatcher mock_image_watcher(mock_image_ctx, m_oid);
+
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+  expect_aio_watch(mock_image_ctx, 0);
+  expect_aio_unwatch(mock_image_ctx, -EINVAL);
+  expect_aio_watch(mock_image_ctx, 0);
+  expect_aio_unwatch(mock_image_ctx, 0);
+
+  C_SaferCond register_ctx;
+  mock_image_watcher.register_watch(&register_ctx);
+  ASSERT_EQ(0, register_ctx.wait());
+
+  assert(m_watch_ctx != nullptr);
+  m_watch_ctx->handle_error(0, -ESHUTDOWN);
+
+  // wait for recovery unwatch/watch
+  ASSERT_TRUE(wait_for_watch(mock_image_ctx, 3));
+
+  C_SaferCond unregister_ctx;
+  mock_image_watcher.unregister_watch(&unregister_ctx);
+  ASSERT_EQ(0, unregister_ctx.wait());
+}
+
+TEST_F(TestMockObjectWatcher, ReregisterWatchError) {
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockImageCtx mock_image_ctx(*ictx);
+  MockObjectWatcher mock_image_watcher(mock_image_ctx, m_oid);
+
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+  expect_aio_watch(mock_image_ctx, 0);
+  expect_aio_unwatch(mock_image_ctx, 0);
+  expect_aio_watch(mock_image_ctx, -ESHUTDOWN);
+  expect_aio_watch(mock_image_ctx, 0);
+  expect_aio_unwatch(mock_image_ctx, 0);
+
+  C_SaferCond register_ctx;
+  mock_image_watcher.register_watch(&register_ctx);
+  ASSERT_EQ(0, register_ctx.wait());
+
+  assert(m_watch_ctx != nullptr);
+  m_watch_ctx->handle_error(0, -ESHUTDOWN);
+
+  // wait for recovery unwatch/watch
+  ASSERT_TRUE(wait_for_watch(mock_image_ctx, 4));
+
+  C_SaferCond unregister_ctx;
+  mock_image_watcher.unregister_watch(&unregister_ctx);
+  ASSERT_EQ(0, unregister_ctx.wait());
+}
+
+TEST_F(TestMockObjectWatcher, ReregisterUnwatchPendingUnregister) {
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockImageCtx mock_image_ctx(*ictx);
+  MockObjectWatcher mock_image_watcher(mock_image_ctx, m_oid);
+
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+  expect_aio_watch(mock_image_ctx, 0);
+
+  // inject an unregister
+  C_SaferCond unregister_ctx;
+  expect_aio_unwatch(mock_image_ctx, 0, [&mock_image_watcher, &unregister_ctx]() {
+      mock_image_watcher.unregister_watch(&unregister_ctx);
+    });
+
+  C_SaferCond register_ctx;
+  mock_image_watcher.register_watch(&register_ctx);
+  ASSERT_EQ(0, register_ctx.wait());
+
+  assert(m_watch_ctx != nullptr);
+  m_watch_ctx->handle_error(0, -ESHUTDOWN);
+
+  ASSERT_EQ(0, unregister_ctx.wait());
+}
+
+TEST_F(TestMockObjectWatcher, ReregisterWatchPendingUnregister) {
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockImageCtx mock_image_ctx(*ictx);
+  MockObjectWatcher mock_image_watcher(mock_image_ctx, m_oid);
+
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+  expect_aio_watch(mock_image_ctx, 0);
+  expect_aio_unwatch(mock_image_ctx, 0);
+
+  // inject an unregister
+  C_SaferCond unregister_ctx;
+  expect_aio_watch(mock_image_ctx, -ESHUTDOWN,
+                   [&mock_image_watcher, &unregister_ctx]() {
+      mock_image_watcher.unregister_watch(&unregister_ctx);
+    });
+
+  C_SaferCond register_ctx;
+  mock_image_watcher.register_watch(&register_ctx);
+  ASSERT_EQ(0, register_ctx.wait());
+
+  assert(m_watch_ctx != nullptr);
+  m_watch_ctx->handle_error(0, -ESHUTDOWN);
+
+  ASSERT_EQ(0, unregister_ctx.wait());
+}
+
+TEST_F(TestMockObjectWatcher, ReregisterPendingUnregister) {
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockImageCtx mock_image_ctx(*ictx);
+  MockObjectWatcher mock_image_watcher(mock_image_ctx, m_oid);
+
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+  expect_aio_watch(mock_image_ctx, 0);
+  expect_aio_unwatch(mock_image_ctx, 0);
+
+  // inject an unregister
+  C_SaferCond unregister_ctx;
+  expect_aio_watch(mock_image_ctx, 0,
+                   [&mock_image_watcher, &unregister_ctx]() {
+      mock_image_watcher.unregister_watch(&unregister_ctx);
+    });
+
+  expect_aio_unwatch(mock_image_ctx, 0);
+
+  C_SaferCond register_ctx;
+  mock_image_watcher.register_watch(&register_ctx);
+  ASSERT_EQ(0, register_ctx.wait());
+
+  assert(m_watch_ctx != nullptr);
+  m_watch_ctx->handle_error(0, -ESHUTDOWN);
+
+  ASSERT_EQ(0, unregister_ctx.wait());
+}
+
+} // namespace librbd