[Blob] Blob paging to disk patch.

content/browser/blob_storage/blob_memory_controller_unittest.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 "storage/browser/blob/blob_memory_controller.h"
+
+#include "base/files/file_util.h"
+#include "base/test/test_simple_task_runner.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace storage {
+namespace {
+const std::string kBlobStorageDirectory = "blob_storage";
+const size_t kTestBlobStorageMaxBlobMemorySize = 400;
+const size_t kTestBlobStorageMaxMemoryUsage = 500;
+const uint64_t kTestBlobStorageMaxDiskSpace = 1000;
+const size_t kTestBlobStorageInFlightMemory = 2;
+const uint64_t kTestBlobStorageMinFileSizeBytes = 2;
+
+void SetFileCreationInfo(BlobMemoryController::FileCreationInfo* output,
+                         const BlobMemoryController::FileCreationInfo& in) {
+  *out = in;
+}
+
+class BlobMemoryControllerTest : public testing::Test {
+ protected:
+  void SetUp() override {
+    ASSERT_EQ(true, base::GetTempDir(&temp_dir_));
+    directory_path_ = temp_dir_.Append(kBlobStorageDirectory);
+  };
+
+  void SetTestMemoryLimits(BlobMemoryController* controller) {
+    controller->SetMemoryLimits(
+        kTestBlobStorageMaxBlobMemorySize, kTestBlobStorageMaxMemoryUsage,
+        kTestBlobStorageMaxDiskSpace, kTestBlobStorageInFlightMemory,
+        kTestBlobStorageMinFileSizeBytes);
+  }
+
+  base::FilePath temp_dir_;
+  base::FilePath directory_path_;
+};
+
+TEST_F(BlobMemoryControllerTest, TestNoDiskChecks) {
+  BlobMemoryController controller;
+  SetTestMemoryLimits(&controller);
+
+  EXPECT_TRUE(controller.ShouldBeShortcut(500));
+  EXPECT_FALSE(controller.ShouldBeShortcut(501));
+  EXPECT_TRUE(controller.CanNewBlobFit(500));
+  EXPECT_FALSE(controller.CanNewBlobFit(501));
+  // No file saving
+  EXPECT_FALSE(controller.ShouldRendererSaveToFile(1));
+  EXPECT_FALSE(controller.ShouldRendererSaveToFile(500));
+  EXPECT_FALSE(controller.ShouldRendererSaveToFile(501));
+
+  // Check we can't create files.
+  BlobMemoryController::FileCreationInfo file_creation_info;
+}
+
+}  // namespace
+}  // namespace storage