1 files changed, 124 insertions, 0 deletions
diff --git a/chromium/chrome/browser/net/file_downloader_unittest.cc b/chromium/chrome/browser/net/file_downloader_unittest.cc
new file mode 100644
index 00000000000..78d3bade97c
--- /dev/null
+++ b/chromium/chrome/browser/net/file_downloader_unittest.cc
@@ -0,0 +1,124 @@
+// 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 "chrome/browser/net/file_downloader.h"
+
+#include "base/bind.h"
+#include "base/files/file_path.h"
+#include "base/files/file_util.h"
+#include "base/files/scoped_temp_dir.h"
+#include "base/test/task_environment.h"
+#include "base/threading/thread_task_runner_handle.h"
+#include "content/public/test/test_utils.h"
+#include "net/http/http_status_code.h"
+#include "net/traffic_annotation/network_traffic_annotation_test_helper.h"
+#include "services/network/public/cpp/weak_wrapper_shared_url_loader_factory.h"
+#include "services/network/test/test_url_loader_factory.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "url/gurl.h"
+
+const char kURL[] = "https://www.url.com/path";
+const char kFilename[] = "filename.ext";
+const char kFileContents1[] = "file contents";
+const char kFileContents2[] = "different contents";
+
+class FileDownloaderTest : public testing::Test {
+ public:
+  FileDownloaderTest()
+      : test_shared_loader_factory_(
+            base::MakeRefCounted<network::WeakWrapperSharedURLLoaderFactory>(
+                &test_url_loader_factory_)) {}
+
+  void SetUp() override {
+    ASSERT_TRUE(dir_.CreateUniqueTempDir());
+    path_ = dir_.GetPath().AppendASCII(kFilename);
+    ASSERT_FALSE(base::PathExists(path_));
+  }
+
+  MOCK_METHOD1(OnDownloadFinished, void(FileDownloader::Result));
+
+ protected:
+  const base::FilePath& path() const { return path_; }
+
+  void SetValidResponse() {
+    test_url_loader_factory_.AddResponse(kURL, kFileContents1);
+  }
+
+  void SetValidResponse2() {
+    test_url_loader_factory_.AddResponse(kURL, kFileContents2);
+  }
+
+  void SetFailedResponse() {
+    test_url_loader_factory_.AddResponse(
+        GURL(kURL), network::mojom::URLResponseHead::New(), std::string(),
+        network::URLLoaderCompletionStatus(net::HTTP_NOT_FOUND));
+  }
+
+  void Download(bool overwrite, FileDownloader::Result expected_result) {
+    FileDownloader downloader(
+        GURL(kURL), path_, overwrite, test_shared_loader_factory_,
+        base::BindOnce(&FileDownloaderTest::OnDownloadFinished,
+                       base::Unretained(this)),
+        TRAFFIC_ANNOTATION_FOR_TESTS);
+    EXPECT_CALL(*this, OnDownloadFinished(expected_result));
+    // Wait for the FileExists check to happen if necessary.
+    content::RunAllTasksUntilIdle();
+  }
+
+ private:
+  base::ScopedTempDir dir_;
+  base::FilePath path_;
+
+  base::test::TaskEnvironment task_environment_;
+  network::TestURLLoaderFactory test_url_loader_factory_;
+  scoped_refptr<network::SharedURLLoaderFactory> test_shared_loader_factory_;
+};
+
+TEST_F(FileDownloaderTest, Success) {
+  SetValidResponse();
+  Download(true, FileDownloader::DOWNLOADED);
+  EXPECT_TRUE(base::PathExists(path()));
+  std::string contents;
+  ASSERT_TRUE(base::ReadFileToString(path(), &contents));
+  EXPECT_EQ(std::string(kFileContents1), contents);
+}
+
+TEST_F(FileDownloaderTest, Failure) {
+  SetFailedResponse();
+  Download(true, FileDownloader::FAILED);
+  EXPECT_FALSE(base::PathExists(path()));
+}
+
+TEST_F(FileDownloaderTest, Overwrite) {
+  SetValidResponse();
+  Download(true, FileDownloader::DOWNLOADED);
+  ASSERT_TRUE(base::PathExists(path()));
+  std::string contents;
+  ASSERT_TRUE(base::ReadFileToString(path(), &contents));
+  ASSERT_EQ(std::string(kFileContents1), contents);
+
+  SetValidResponse2();
+  Download(true, FileDownloader::DOWNLOADED);
+  // The file should have been overwritten with the new contents.
+  EXPECT_TRUE(base::PathExists(path()));
+  ASSERT_TRUE(base::ReadFileToString(path(), &contents));
+  EXPECT_EQ(std::string(kFileContents2), contents);
+}
+
+TEST_F(FileDownloaderTest, DontOverwrite) {
+  SetValidResponse();
+  Download(true, FileDownloader::DOWNLOADED);
+  ASSERT_TRUE(base::PathExists(path()));
+  std::string contents;
+  ASSERT_TRUE(base::ReadFileToString(path(), &contents));
+  EXPECT_EQ(std::string(kFileContents1), contents);
+
+  SetValidResponse2();
+  Download(false, FileDownloader::EXISTS);
+  // The file should still have the old contents.
+  EXPECT_TRUE(base::PathExists(path()));
+  ASSERT_TRUE(base::ReadFileToString(path(), &contents));
+  EXPECT_EQ(std::string(kFileContents1), contents);
+}