1 files changed, 58 insertions, 0 deletions
diff --git a/test/string/trie.cpp b/test/string/trie.cpp
new file mode 100644
index 0000000..45d89cf
--- /dev/null
+++ b/test/string/trie.cpp
@@ -0,0 +1,58 @@
+#include "../util.h"
+#include <string/trie.cpp>
+
+void stress_test() {
+	multiset<vector<int>> naive;
+	ll queries = 0;
+	ll deleted = 0;
+	for (int tries = 0; tries < 100'000; tries++) {
+		{
+			int n = Random::integer<int>(1, 20);
+			auto s = Random::integers<int>(n, 0, 2);
+			insert(s);
+			naive.insert(s);
+		}
+		{
+			int n = Random::integer<int>(1, 20);
+			auto s = Random::integers<int>(n, 0, 2);
+			bool got = erase(s);
+			auto it = naive.find(s);
+			bool expected = it != naive.end();
+			if (expected) naive.erase(it);
+			if (got != expected) cerr << "error" << FAIL;
+			queries++;
+			if (got) deleted++;
+		}
+	}
+	cerr << "tested random queries: " << queries << " (" << deleted << ")" << endl;
+}
+
+constexpr int N = 10'000;
+void performance_test() {
+	timer t;
+	trie = {node()};
+	hash_t hash = 0;
+	for (int tries = 0; tries < N; tries++) {
+		{
+			int n = Random::integer<int>(1, 2000);
+			auto s = Random::integers<int>(n, 0, 2);
+			t.start();
+			insert(s);
+			t.stop();
+		}
+		{
+			int n = Random::integer<int>(1, 2000);
+			auto s = Random::integers<int>(n, 0, 2);
+			t.start();
+			hash += erase(s);
+			t.stop();
+		}
+	}
+	if (t.time > 500) cerr << "too slow: " << t.time << FAIL;
+	cerr << "tested performance: " << t.time << "ms (hash: " << hash << ")" << endl;
+}
+
+int main() {
+	stress_test();
+	performance_test();
+}