Explicitly CHECK arguments in dbus::MessageWriter::AppendString/ObjectPath

dbus/string_util_unittest.cc

Index: dbus/string_util_unittest.cc
diff --git a/dbus/string_util_unittest.cc b/dbus/string_util_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..76bdfcbd2bdc56ad22d5550ce43e0cec7cc98c6c
--- /dev/null
+++ b/dbus/string_util_unittest.cc
@@ -0,0 +1,27 @@
+// 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 "dbus/string_util.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+TEST(StringUtilTest, IsValidObjectPath) {
+  EXPECT_TRUE(dbus::IsValidObjectPath("/"));
+  EXPECT_TRUE(dbus::IsValidObjectPath("/foo/bar"));
+  EXPECT_TRUE(dbus::IsValidObjectPath("/hoge_fuga/piyo123"));
+  // Empty string.
+  EXPECT_FALSE(dbus::IsValidObjectPath(""));
+  // Emptyr elemnt.
+  EXPECT_FALSE(dbus::IsValidObjectPath("//"));
+  EXPECT_FALSE(dbus::IsValidObjectPath("/foo//bar"));
+  EXPECT_FALSE(dbus::IsValidObjectPath("/foo///bar"));
+  // Trailing '/'.
+  EXPECT_FALSE(dbus::IsValidObjectPath("/foo/"));
+  EXPECT_FALSE(dbus::IsValidObjectPath("/foo/bar/"));
+  // Not beginning with '/'.
+  EXPECT_FALSE(dbus::IsValidObjectPath("foo/bar"));
+  // Invalid characters.
+  EXPECT_FALSE(dbus::IsValidObjectPath("/foo.bar"));
+  EXPECT_FALSE(dbus::IsValidObjectPath("/foo/*"));
+  EXPECT_FALSE(dbus::IsValidObjectPath("/foo/bar(1)"));
+}