优化

2026-08-24 09:37:04 +08:00
parent 1d3847d454
commit 4f21169ade
42 changed files with 1371 additions and 833 deletions
@@ -0,0 +1,38 @@
+#include "web_server/src/Sliding_Statistics.hpp"
+#include <gtest/gtest.h>
+#include <limits>
+
+namespace aethera::web {
+TEST(Sliding_Statistics, Derives_Window_Statistics_On_Demand) {
+    Sliding_Statistics statistics{20};
+    for (int value = 1; value <= 20; ++value)
+        statistics.submit(static_cast<double>(value));
+
+    const auto snapshot = statistics.snapshot();
+    EXPECT_EQ(snapshot.count, 20U);
+    EXPECT_DOUBLE_EQ(snapshot.latest, 20.0);
+    EXPECT_DOUBLE_EQ(snapshot.minimum, 1.0);
+    EXPECT_DOUBLE_EQ(snapshot.maximum, 20.0);
+    EXPECT_DOUBLE_EQ(snapshot.average, 10.5);
+    EXPECT_DOUBLE_EQ(snapshot.trimmed_average, 10.5);
+    EXPECT_DOUBLE_EQ(snapshot.p50, 10.0);
+    EXPECT_DOUBLE_EQ(snapshot.p95, 19.0);
+    EXPECT_DOUBLE_EQ(snapshot.p99, 20.0);
+}
+
+TEST(Sliding_Statistics, Overwrites_Oldest_And_Ignores_Nonfinite_Values) {
+    Sliding_Statistics statistics{3};
+    statistics.submit(1.0);
+    statistics.submit(2.0);
+    statistics.submit(std::numeric_limits<double>::infinity());
+    statistics.submit(3.0);
+    statistics.submit(4.0);
+
+    const auto snapshot = statistics.snapshot();
+    EXPECT_EQ(snapshot.count, 3U);
+    EXPECT_DOUBLE_EQ(snapshot.latest, 4.0);
+    EXPECT_DOUBLE_EQ(snapshot.minimum, 2.0);
+    EXPECT_DOUBLE_EQ(snapshot.maximum, 4.0);
+    EXPECT_DOUBLE_EQ(snapshot.average, 3.0);
+}
+}