Add UUID, strlcpy, and their tests to util

util/misc/uuid_test.cc

+// Copyright 2014 The Crashpad Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "util/misc/uuid.h"
+
+#include <stdint.h>
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "gtest/gtest.h"
+
+namespace {
+
+using namespace crashpad;
+
+TEST(UUID, UUID) {
+  UUID uuid_zero;
+  for (size_t index = 0; index < 16; ++index) {
+    EXPECT_EQ(0u, uuid_zero.data[index]);
+  }
+  EXPECT_EQ("00000000-0000-0000-0000-000000000000", uuid_zero.ToString());
+
+  const uint8_t kBytes[16] = {0x00,
+                              0x01,
+                              0x02,
+                              0x03,
+                              0x04,
+                              0x05,
+                              0x06,
+                              0x07,
+                              0x08,
+                              0x09,
+                              0x0a,
+                              0x0b,
+                              0x0c,
+                              0x0d,
+                              0x0e,
+                              0x0f};
+  UUID uuid(kBytes);
+  for (size_t index = 0; index < arraysize(kBytes); ++index) {
+    EXPECT_EQ(kBytes[index], uuid.data[index]);
+  }
+  EXPECT_EQ("00010203-0405-0607-0809-0a0b0c0d0e0f", uuid.ToString());
+
+  // UUID is a standard-layout structure. It is valid to memcpy to it.
+  const uint8_t kMoreBytes[16] = {0xff,
+                                  0xee,
+                                  0xdd,
+                                  0xcc,
+                                  0xbb,
+                                  0xaa,
+                                  0x99,
+                                  0x88,
+                                  0x77,
+                                  0x66,
+                                  0x55,
+                                  0x44,
+                                  0x33,
+                                  0x22,
+                                  0x11,
+                                  0x00};
+  memcpy(&uuid, kMoreBytes, sizeof(kMoreBytes));
+  EXPECT_EQ("ffeeddcc-bbaa-9988-7766-554433221100", uuid.ToString());
+}
+
+}  // namespace