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-rw-r--r--src/test/librbd/test_BlockGuard.cc98
1 files changed, 98 insertions, 0 deletions
diff --git a/src/test/librbd/test_BlockGuard.cc b/src/test/librbd/test_BlockGuard.cc
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+++ b/src/test/librbd/test_BlockGuard.cc
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "test/librbd/test_fixture.h"
+#include "test/librbd/test_support.h"
+#include "librbd/BlockGuard.h"
+
+namespace librbd {
+
+class TestIOBlockGuard : public TestFixture {
+public:
+ static uint32_t s_index;
+
+ struct Operation {
+ uint32_t index;
+ Operation() : index(++s_index) {
+ }
+ Operation(Operation &&rhs) : index(rhs.index) {
+ }
+ Operation(const Operation &) = delete;
+
+ Operation& operator=(Operation &&rhs) {
+ index = rhs.index;
+ return *this;
+ }
+
+ bool operator==(const Operation &rhs) const {
+ return index == rhs.index;
+ }
+ };
+
+ typedef std::list<Operation> Operations;
+
+ typedef BlockGuard<Operation> OpBlockGuard;
+
+ void SetUp() override {
+ TestFixture::SetUp();
+ m_cct = reinterpret_cast<CephContext*>(m_ioctx.cct());
+ }
+
+ CephContext *m_cct;
+};
+
+TEST_F(TestIOBlockGuard, NonDetainedOps) {
+ OpBlockGuard op_block_guard(m_cct);
+
+ Operation op1;
+ BlockGuardCell *cell1;
+ ASSERT_EQ(0, op_block_guard.detain({1, 3}, &op1, &cell1));
+
+ Operation op2;
+ BlockGuardCell *cell2;
+ ASSERT_EQ(0, op_block_guard.detain({0, 1}, &op2, &cell2));
+
+ Operation op3;
+ BlockGuardCell *cell3;
+ ASSERT_EQ(0, op_block_guard.detain({3, 6}, &op3, &cell3));
+
+ Operations released_ops;
+ op_block_guard.release(cell1, &released_ops);
+ ASSERT_TRUE(released_ops.empty());
+
+ op_block_guard.release(cell2, &released_ops);
+ ASSERT_TRUE(released_ops.empty());
+
+ op_block_guard.release(cell3, &released_ops);
+ ASSERT_TRUE(released_ops.empty());
+}
+
+TEST_F(TestIOBlockGuard, DetainedOps) {
+ OpBlockGuard op_block_guard(m_cct);
+
+ Operation op1;
+ BlockGuardCell *cell1;
+ ASSERT_EQ(0, op_block_guard.detain({1, 3}, &op1, &cell1));
+
+ Operation op2;
+ BlockGuardCell *cell2;
+ ASSERT_EQ(1, op_block_guard.detain({2, 6}, &op2, &cell2));
+ ASSERT_EQ(nullptr, cell2);
+
+ Operation op3;
+ BlockGuardCell *cell3;
+ ASSERT_EQ(2, op_block_guard.detain({0, 2}, &op3, &cell3));
+ ASSERT_EQ(nullptr, cell3);
+
+ Operations expected_ops;
+ expected_ops.push_back(std::move(op2));
+ expected_ops.push_back(std::move(op3));
+ Operations released_ops;
+ op_block_guard.release(cell1, &released_ops);
+ ASSERT_EQ(expected_ops, released_ops);
+}
+
+uint32_t TestIOBlockGuard::s_index = 0;
+
+} // namespace librbd
+