Sync from upstream llama.cpp repository

tests/test-peg-parser.cpp

@@ -0,0 +1,25 @@
+#include <cstdlib>
+#include <string>
+#include <iostream>
+
+#include "peg-parser/tests.h"
+
+int main(int argc, char *argv[]) {
+    testing t(std::cout);
+    if (argc >= 2) {
+        t.set_filter(argv[1]);
+    }
+
+    const char * verbose = getenv("LLAMA_TEST_VERBOSE");
+    if (verbose) {
+        t.verbose = std::string(verbose) == "1";
+    }
+
+    t.test("basic", test_basic);
+    t.test("unicode", test_unicode);
+    t.test("json", test_json_parser);
+    t.test("gbnf", test_gbnf_generation);
+    t.test("serialization", test_json_serialization);
+
+    return t.summary();
+}