Revert of Adds resource_provider::ResourceProvider

components/resource_provider/resource_provider_apptest.cc

-// Copyright 2015 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 <stdint.h>
-
-#include "base/bind.h"
-#include "base/containers/scoped_ptr_hash_map.h"
-#include "base/files/file.h"
-#include "base/run_loop.h"
-#include "components/resource_provider/public/interfaces/resource_provider.mojom.h"
-#include "mojo/application/application_test_base_chromium.h"
-#include "mojo/common/common_type_converters.h"
-#include "mojo/platform_handle/platform_handle_functions.h"
-#include "third_party/mojo/src/mojo/public/cpp/application/application_delegate.h"
-#include "third_party/mojo/src/mojo/public/cpp/application/application_impl.h"
-#include "third_party/mojo/src/mojo/public/cpp/application/service_provider_impl.h"
-#include "third_party/mojo/src/mojo/public/cpp/bindings/array.h"
-#include "third_party/mojo/src/mojo/public/cpp/system/macros.h"
-
-namespace resource_provider {
-namespace {
-
-std::string ReadFile(base::File* file) {
-  const size_t kBufferSize = 1 << 16;
-  scoped_ptr<char[]> buffer(new char[kBufferSize]);
-  const int read = file->ReadAtCurrentPos(buffer.get(), kBufferSize);
-  if (read == -1)
-    return std::string();
-  return std::string(buffer.get(), read);
-}
-
-std::vector<std::string> VectorWithString(const std::string& contents) {
-  std::vector<std::string> result;
-  result.push_back(contents);
-  return result;
-}
-
-std::vector<std::string> VectorWithStrings(const std::string& contents1,
-                                           const std::string& contents2) {
-  std::vector<std::string> result;
-  result.push_back(contents1);
-  result.push_back(contents2);
-  return result;
-}
-
-// ResourceFetcher fetches resources from a ResourceProvider, storing the
-// results as well as running
-// a message loop until the resource has been obtained.
-class ResourceFetcher {
- public:
-  using ResourceMap = std::map<std::string, std::string>;
-
-  explicit ResourceFetcher(ResourceProvider* provider)
-      : provider_(provider), waiting_count_(0u) {}
-  ~ResourceFetcher() {}
-
-  ResourceMap* resources() { return &resources_; }
-
-  void WaitForResults() {
-    ASSERT_NE(0u, waiting_count_);
-    run_loop_.Run();
-  }
-
-  void GetResources(const std::vector<std::string>& paths) {
-    waiting_count_++;
-    provider_->GetResources(mojo::Array<mojo::String>::From(paths),
-                            base::Bind(&ResourceFetcher::OnGotResources,
-                                       base::Unretained(this), paths));
-  }
-
- private:
-  // Callback when a resource has been fetched.
-  void OnGotResources(const std::vector<std::string>& paths,
-                      mojo::Array<mojo::ScopedHandle> resources) {
-    ASSERT_FALSE(resources.is_null());
-    ASSERT_EQ(paths.size(), resources.size());
-    for (size_t i = 0; i < paths.size(); ++i) {
-      std::string contents;
-      if (resources[i].is_valid()) {
-        MojoPlatformHandle platform_handle;
-        ASSERT_EQ(MOJO_RESULT_OK,
-                  MojoExtractPlatformHandle(resources[i].release().value(),
-                                            &platform_handle));
-        base::File file(platform_handle);
-        contents = ReadFile(&file);
-      }
-      resources_[paths[i]] = contents;
-    }
-
-    if (waiting_count_ > 0) {
-      waiting_count_--;
-      if (waiting_count_ == 0)
-        run_loop_.Quit();
-    }
-  }
-
-  ResourceProvider* provider_;
-  ResourceMap resources_;
-  // Number of resources we're waiting on.
-  size_t waiting_count_;
-  base::RunLoop run_loop_;
-
-  DISALLOW_COPY_AND_ASSIGN(ResourceFetcher);
-};
-
-class ResourceProviderApplicationTest : public mojo::test::ApplicationTestBase {
- public:
-  ResourceProviderApplicationTest() {}
-  ~ResourceProviderApplicationTest() override {}
-
- protected:
-  // ApplicationTestBase:
-  void SetUp() override {
-    ApplicationTestBase::SetUp();
-    application_impl()->ConnectToService("mojo:resource_provider",
-                                         &resource_provider_);
-  }
-
-  ResourceProviderPtr resource_provider_;
-
- private:
-  MOJO_DISALLOW_COPY_AND_ASSIGN(ResourceProviderApplicationTest);
-};
-
-TEST_F(ResourceProviderApplicationTest, FetchOneResource) {
-  ResourceFetcher fetcher(resource_provider_.get());
-  fetcher.GetResources(VectorWithString("sample"));
-  fetcher.WaitForResults();
-  ASSERT_TRUE(fetcher.resources()->count("sample") > 0u);
-  EXPECT_EQ("test data\n", (*fetcher.resources())["sample"]);
-}
-
-TEST_F(ResourceProviderApplicationTest, FetchTwoResources) {
-  ResourceFetcher fetcher(resource_provider_.get());
-  fetcher.GetResources(VectorWithStrings("sample", "dir/sample2"));
-  fetcher.WaitForResults();
-  ASSERT_TRUE(fetcher.resources()->count("sample") > 0u);
-  EXPECT_EQ("test data\n", (*fetcher.resources())["sample"]);
-
-  ASSERT_TRUE(fetcher.resources()->count("dir/sample2") > 0u);
-  EXPECT_EQ("xxyy\n", (*fetcher.resources())["dir/sample2"]);
-}
-
-}  // namespace
-}  // namespace resource_provider