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deps/oblib/unittest/lib/utility/test_simple_rate_limiter.cpp

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+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase CE is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#include <gtest/gtest.h>
+#include "lib/utility/ob_simple_rate_limiter.h"
+
+using namespace ::oblib;
+using namespace oceanbase::lib;
+using namespace oceanbase::common;
+
+TEST(TestSimpleRateLimiter, Basic)
+{
+  ObSimpleRateLimiter rl(3);
+  ASSERT_EQ(OB_SUCCESS, rl.try_acquire());
+  ASSERT_EQ(OB_SUCCESS, rl.try_acquire());
+  ASSERT_EQ(OB_SUCCESS, rl.try_acquire());
+  ASSERT_NE(OB_SUCCESS, rl.try_acquire());
+  ASSERT_NE(OB_SUCCESS, rl.try_acquire());
+
+  sleep(1);
+  ASSERT_EQ(OB_SUCCESS, rl.try_acquire());
+  ASSERT_EQ(OB_SUCCESS, rl.try_acquire());
+  ASSERT_EQ(OB_SUCCESS, rl.try_acquire());
+  ASSERT_NE(OB_SUCCESS, rl.try_acquire());
+  ASSERT_NE(OB_SUCCESS, rl.try_acquire());
+
+  sleep(1);
+  rl.set_rate(1);
+  ASSERT_EQ(OB_SUCCESS, rl.try_acquire());
+  ASSERT_NE(OB_SUCCESS, rl.try_acquire());
+
+  {
+    ObSimpleRateLimiter rl(99);
+    for (int i = 0; i < 25; i++) {
+      ASSERT_EQ(OB_SUCCESS, rl.try_acquire(4)) << i;
+    }
+    ASSERT_NE(OB_SUCCESS, rl.try_acquire(4));
+  }
+}
+
+int main(int argc, char** argv)
+{
+  ::testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}