[NaCl SDK] nacl_io: Added support for access() syscall.

native_client_sdk/src/libraries/nacl_io_test/mount_http_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 <gmock/gmock.h>
 #include <ppapi/c/ppb_file_io.h>
 #include <ppapi/c/pp_errors.h>
 #include <ppapi/c/pp_instance.h>
@@ skipping 368 matching lines @@
   ExpectOpen("HEAD");
   ExpectHeaders("");
   SetResponse(200, "Content-Length: 42\n");
   OpenNode();
 
   struct stat stat;
   EXPECT_EQ(0, node_->GetStat(&stat));
   EXPECT_EQ(42, stat.st_size);
 }
 
+TEST_F(MountHttpNodeTest, Access) {
+  StringMap_t smap;
+  smap["cache_content"] = "false";
+  SetMountArgs(StringMap_t());
+  ExpectOpen("HEAD");
+  ExpectHeaders("");
+  SetResponse(200, "");
+  ASSERT_EQ(0, mnt_->Access(Path(path_), R_OK));
+}
+
+TEST_F(MountHttpNodeTest, AccessWrite) {
+  StringMap_t smap;
+  smap["cache_content"] = "false";
+  SetMountArgs(StringMap_t());
+  ExpectOpen("HEAD");
+  ExpectHeaders("");
+  SetResponse(200, "");
+  ASSERT_EQ(EACCES, mnt_->Access(Path(path_), W_OK));
+}
+
+TEST_F(MountHttpNodeTest, AccessNotFound) {
+  StringMap_t smap;
+  smap["cache_content"] = "false";
+  SetMountArgs(StringMap_t());
+  ExpectOpen("HEAD");
+  ExpectHeaders("");
+  SetResponseExpectFail(404, "");
+  ASSERT_EQ(ENOENT, mnt_->Access(Path(path_), R_OK));
+}
+
 TEST_F(MountHttpNodeTest, ReadCached) {
   size_t result_size = 0;
   int result_bytes = 0;
 
   SetMountArgs(StringMap_t());
   ExpectOpen("HEAD");
   ExpectHeaders("");
   SetResponse(200, "Content-Length: 42\n");
   OpenNode();
   ResetMocks();
@@ skipping 170 matching lines @@
   memset(&buf[0], 0, sizeof(buf));
 
   ExpectOpen("GET");
   ExpectHeaders("Range: bytes=10-18\n");
   SetResponse(200, "Content-Length: 20\n");
   SetResponseBody("0123456789abcdefghij");
   EXPECT_EQ(0, node_->Read(10, buf, sizeof(buf) - 1, &result_bytes));
   EXPECT_EQ(sizeof(buf) - 1, result_bytes);
   EXPECT_STREQ("abcdefghi", &buf[0]);
 }