[NaCl SDK] Add HTTP mount.

native_client_sdk/src/libraries/nacl_mounts_test/path_test.cc

 /* 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 <fcntl.h>
 #include "nacl_mounts/kernel_proxy.h"
 #include "nacl_mounts/path.h"
 
 #include "gtest/gtest.h"
@@ skipping 224 matching lines @@
   EXPECT_EQ(".", test.Join());
 
   test = relative;
   test.Append("../../..");
   EXPECT_EQ("..", test.Join());
 
   test = relative;
   test.Append("../../../foo");
   EXPECT_EQ("../foo", test.Join());
 }
+
+TEST(PathTest, Range) {
+  Path p("/an/absolute/path");
+
+  // p's parts should be ["/", "an", "absolute", "path"].
+  EXPECT_EQ("/an/absolute/path", p.Range(0, 4));
+  EXPECT_EQ("an/absolute/path", p.Range(1, 4));
+  EXPECT_EQ("absolute/path", p.Range(2, 4));
+  EXPECT_EQ("path", p.Range(3, 4));
+
+  EXPECT_EQ("/an/absolute", p.Range(0, 3));
+  EXPECT_EQ("an/absolute", p.Range(1, 3));
+  EXPECT_EQ("absolute", p.Range(2, 3));
+}