chore: import upstream snapshot with attribution

2026-07-13 13:29:29 +08:00
commit f52cf32e56
1718 changed files with 366293 additions and 0 deletions
@@ -0,0 +1,42 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "butil/guid.h"
+
+#include <limits>
+
+#include <gtest/gtest.h>
+
+#if defined(OS_POSIX)
+TEST(GUIDTest, GUIDGeneratesAllZeroes) {
+  uint64_t bytes[] = { 0, 0 };
+  std::string clientid = butil::RandomDataToGUIDString(bytes);
+  EXPECT_EQ("00000000-0000-0000-0000-000000000000", clientid);
+}
+
+TEST(GUIDTest, GUIDGeneratesCorrectly) {
+  uint64_t bytes[] = { 0x0123456789ABCDEFULL, 0xFEDCBA9876543210ULL };
+  std::string clientid = butil::RandomDataToGUIDString(bytes);
+  EXPECT_EQ("01234567-89AB-CDEF-FEDC-BA9876543210", clientid);
+}
+#endif
+
+TEST(GUIDTest, GUIDCorrectlyFormatted) {
+  const int kIterations = 10;
+  for (int it = 0; it < kIterations; ++it) {
+    std::string guid = butil::GenerateGUID();
+    EXPECT_TRUE(butil::IsValidGUID(guid));
+  }
+}
+
+TEST(GUIDTest, GUIDBasicUniqueness) {
+  const int kIterations = 10;
+  for (int it = 0; it < kIterations; ++it) {
+    std::string guid1 = butil::GenerateGUID();
+    std::string guid2 = butil::GenerateGUID();
+    EXPECT_EQ(36U, guid1.length());
+    EXPECT_EQ(36U, guid2.length());
+    EXPECT_NE(guid1, guid2);
+  }
+}