Extract TExpiringSet to library/cpp/containers

commit_hash:dd1c08771b1d4865d03a492927afa0f9895a5f44

1 files changed, 102 insertions, 0 deletions

diff --git a/library/cpp/yt/containers/unittests/expiring_set_ut.cpp b/library/cpp/yt/containers/unittests/expiring_set_ut.cpp
new file mode 100644
index 0000000000..e9f2743a80
--- /dev/null
+++ b/library/cpp/yt/containers/unittests/expiring_set_ut.cpp
@@ -0,0 +1,102 @@
+#include <library/cpp/yt/containers/expiring_set.h>
+
+#include <library/cpp/testing/gtest/gtest.h>
+
+namespace NYT {
+namespace {
+
+////////////////////////////////////////////////////////////////////////////////
+
+TInstant operator""_ts(unsigned long long seconds)
+{
+    return TInstant::Zero() + TDuration::Seconds(seconds);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+TEST(TExpiringSetTest, Empty)
+{
+    TExpiringSet<int> set;
+    EXPECT_EQ(set.GetSize(), 0);
+}
+
+TEST(TExpiringSetTest, ExpireSingle)
+{
+    TExpiringSet<int> set;
+    set.SetTTl(TDuration::Seconds(2));
+
+    set.Insert(0_ts, 1);
+    EXPECT_EQ(set.GetSize(), 1);
+
+    set.Expire(1_ts);
+    EXPECT_EQ(set.GetSize(), 1);
+
+    set.Expire(2_ts);
+    EXPECT_EQ(set.GetSize(), 0);
+}
+
+TEST(TExpiringSetTest, ExpireBatch)
+{
+    TExpiringSet<int> set;
+    set.SetTTl(TDuration::Seconds(2));
+
+    set.InsertMany(0_ts, std::vector<int>{1, 2, 3});
+    EXPECT_EQ(set.GetSize(), 3);
+
+    set.Expire(1_ts);
+    EXPECT_EQ(set.GetSize(), 3);
+
+    set.Expire(2_ts);
+    EXPECT_EQ(set.GetSize(), 0);
+}
+
+TEST(TExpiringSetTest, Reinsert)
+{
+    TExpiringSet<int> set;
+    set.SetTTl(TDuration::Seconds(2));
+
+    set.Insert(0_ts, 1);
+    EXPECT_EQ(set.GetSize(), 1);
+
+    set.Insert(1_ts, 1);
+    EXPECT_EQ(set.GetSize(), 1);
+
+    set.Expire(2_ts);
+    EXPECT_EQ(set.GetSize(), 1);
+
+    set.Expire(3_ts);
+    EXPECT_EQ(set.GetSize(), 0);
+}
+
+TEST(TExpiringSetTest, Contains)
+{
+    TExpiringSet<int> set;
+    set.SetTTl(TDuration::Seconds(1));
+
+    EXPECT_FALSE(set.Contains(1));
+
+    set.Insert(0_ts, 1);
+    EXPECT_TRUE(set.Contains(1));
+
+    set.Expire(1_ts);
+    EXPECT_FALSE(set.Contains(1));
+}
+
+TEST(TExpiringSetTest, Clear)
+{
+    TExpiringSet<int> set;
+    set.SetTTl(TDuration::Seconds(1));
+
+    set.Insert(0_ts, 1);
+    EXPECT_EQ(set.GetSize(), 1);
+    EXPECT_TRUE(set.Contains(1));
+
+    set.Clear();
+    EXPECT_EQ(set.GetSize(), 0);
+    EXPECT_FALSE(set.Contains(1));
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+} // namespace
+} // namespace NYT