From d7905f7dec9e306d7d6f907ce35abc40f24af1c5 Mon Sep 17 00:00:00 2001
From: mzuenni <michi.zuendorf@gmail.com>
Date: Tue, 30 Jul 2024 23:58:19 +0200
Subject: more tests

---
 test/datastructures/persistent.cpp | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 test/datastructures/persistent.cpp

(limited to 'test/datastructures/persistent.cpp')

diff --git a/test/datastructures/persistent.cpp b/test/datastructures/persistent.cpp
new file mode 100644
index 0000000..4e304fa
--- /dev/null
+++ b/test/datastructures/persistent.cpp
@@ -0,0 +1,35 @@
+#include "../util.h"
+#pragma GCC diagnostic ignored "-Wshadow"
+#include <datastructures/persistent.cpp>
+
+void stress_test() {
+	ll queries = 0;
+	for (int tries = 0; tries < 100'000; tries++) {
+		int n = Random::integer<int>(1, 30);
+
+		int timeRef = Random::integer<int>(1, 30);
+		persistent<double> got(timeRef);
+		map<int, double> expected;
+
+		for (int i = 0; i < n; i++) {
+			timeRef += Random::integer<int>(1, 30);
+			double x = Random::real<double>(-1'000, 1'000);
+			auto t = got.set(x);
+
+			if (!expected.empty() && t <= expected.rbegin()->first) cerr << "error: time travel" << FAIL;
+			expected[t] = x;
+		}
+
+		double tmp = 0;
+		for (int i = expected.begin()->first; i < expected.rbegin()->first + 10; i++) {
+			if (expected.find(i) != expected.end()) tmp = expected[i];
+			if (got.get(i) != tmp) cerr << "got: " << got.get(i) << ", " << "expected: " << tmp << FAIL;
+		}
+		queries += n;
+	}
+	cerr << "tested random queries: " << queries << endl;
+}
+
+int main() {
+	stress_test();
+}
-- 
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