[ew] Add basic classes.

chrome/browser/extensions/api/file_system/entry_watcher_service_unittest.cc

+// Copyright 2014 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/extensions/api/file_system/entry_watcher_service.h"
+
+#include <string>
+#include <vector>
+
+#include "base/files/file.h"
+#include "base/files/file_path.h"
+#include "base/files/scoped_temp_dir.h"
+#include "base/memory/scoped_vector.h"
+#include "base/run_loop.h"
+#include "chrome/common/extensions/api/file_system.h"
+#include "chrome/test/base/testing_profile.h"
+#include "content/public/test/test_browser_thread_bundle.h"
+#include "content/public/test/test_file_system_context.h"
+#include "extensions/browser/event_router.h"
+#include "webkit/browser/fileapi/file_system_url.h"
+#include "webkit/common/fileapi/file_system_types.h"
+
+namespace extensions {
+namespace {
+
+const char kExtensionId[] = "mbflcebpggnecokmikipoihdbecnjfoj";
+
+void LogStatus(std::vector<base::File::Error>* log, base::File::Error status) {
+  log->push_back(status);
+}
+
+}  // namespace
+
+class EntryWatcherServiceTest : public testing::Test {
+ protected:
+  EntryWatcherServiceTest() {}
+  virtual ~EntryWatcherServiceTest() {}
+
+  virtual void SetUp() OVERRIDE {
+    profile_.reset(new TestingProfile);
+    ASSERT_TRUE(data_dir_.CreateUniqueTempDir());
+    file_system_context_ =
+        content::CreateFileSystemContextForTesting(NULL, data_dir_.path());
+    service_.reset(new EntryWatcherService(profile_.get()));
+    service_->SetDispatchEventImplForTesting(base::Bind(
+        &EntryWatcherServiceTest::DispatchEventImpl, base::Unretained(this)));
+    service_->SetGetFileSystemContextImplForTesting(
+        base::Bind(&EntryWatcherServiceTest::GetFileSystemContextImpl,
+                   base::Unretained(this)));
+    testing_url_ = file_system_context_->CreateCrackedFileSystemURL(
+        GURL(std::string("chrome-extension://") + kExtensionId),
+        fileapi::kFileSystemTypeTest,
+        base::FilePath::FromUTF8Unsafe("/x/y/z"));
+  }
+
+  virtual void TearDown() OVERRIDE {
+    dispatch_event_log_targets_.clear();
+    dispatch_event_log_events_.clear();
+  }
+
+  void DispatchEventImpl(const std::string& extension_id,
+                         scoped_ptr<Event> event) {
+    dispatch_event_log_targets_.push_back(extension_id);
+    dispatch_event_log_events_.push_back(event.release());
+  }
+
+  fileapi::FileSystemContext* GetFileSystemContextImpl(
+      const std::string& extension_id,
+      content::BrowserContext* context) {
+    EXPECT_EQ(kExtensionId, extension_id);
+    EXPECT_EQ(profile_.get(), context);
+    return file_system_context_.get();
+  }
+
+  content::TestBrowserThreadBundle thread_bundle_;
+  scoped_ptr<TestingProfile> profile_;
+  base::ScopedTempDir data_dir_;
+  scoped_refptr<fileapi::FileSystemContext> file_system_context_;
+  scoped_ptr<EntryWatcherService> service_;
+  fileapi::FileSystemURL testing_url_;
+  std::vector<std::string> dispatch_event_log_targets_;
+  ScopedVector<Event> dispatch_event_log_events_;
+};
+
+TEST_F(EntryWatcherServiceTest, GetWatchedEntries) {
+  std::vector<base::File::Error> log;
+
+  const bool recursive = false;
+  service_->WatchDirectory(
+      kExtensionId, testing_url_, recursive, base::Bind(&LogStatus, &log));
+  base::RunLoop().RunUntilIdle();
+
+  ASSERT_EQ(1u, log.size());
+  EXPECT_EQ(base::File::FILE_OK, log[0]);
+
+  {
+    const std::vector<fileapi::FileSystemURL> watched_entries =
+        service_->GetWatchedEntries(kExtensionId);
+    ASSERT_EQ(1u, watched_entries.size());
+    EXPECT_EQ(testing_url_, watched_entries[0]);
+  }
+
+  {
+    const std::string wrong_extension_id = "abcabcabcabcabcabcabcabcabcabcab";
+    const std::vector<fileapi::FileSystemURL> watched_entries =
+        service_->GetWatchedEntries(wrong_extension_id);
+    EXPECT_EQ(0u, watched_entries.size());
+  }
+}
+
+TEST_F(EntryWatcherServiceTest, WatchDirectory) {
+  std::vector<base::File::Error> log;
+
+  const bool recursive = false;
+  service_->WatchDirectory(
+      kExtensionId, testing_url_, recursive, base::Bind(&LogStatus, &log));
+  base::RunLoop().RunUntilIdle();
+
+  ASSERT_EQ(1u, log.size());
+  EXPECT_EQ(base::File::FILE_OK, log[0]);
+
+  // The testing WatcherManager implementation emits a fake notification as soon

[benwells, 2014/08/18 22:58:32]

I think it it emits two. A comment line "The testing WatcherMananger
implementation emits hard coded notifications as soon as the watcher is set
properly. See Class::Function for details.

It will help any sheriff who ever has to debug these tests. 

[mtomasz, 2014/08/19 06:50:36]

Done.

+  // as the watcher is set properly.
+  ASSERT_LE(1u, dispatch_event_log_targets_.size());
+  ASSERT_LE(1u, dispatch_event_log_events_.size());
+
+  EXPECT_EQ(kExtensionId, dispatch_event_log_targets_[0]);
+  EXPECT_EQ(api::file_system::OnEntryChanged::kEventName,
+            dispatch_event_log_events_[0]->event_name);
+
+  ASSERT_LE(2u, dispatch_event_log_targets_.size());
+  ASSERT_LE(2u, dispatch_event_log_events_.size());
+  EXPECT_EQ(kExtensionId, dispatch_event_log_targets_[1]);
+  EXPECT_EQ(api::file_system::OnEntryRemoved::kEventName,
+            dispatch_event_log_events_[1]->event_name);
+
+  // No unexpected events.
+  ASSERT_EQ(2u, dispatch_event_log_targets_.size());
+  ASSERT_EQ(2u, dispatch_event_log_events_.size());
+
+  const std::vector<fileapi::FileSystemURL> watched_entries =
+      service_->GetWatchedEntries(kExtensionId);
+  ASSERT_EQ(1u, watched_entries.size());
+  EXPECT_EQ(testing_url_, watched_entries[0]);
+}
+
+TEST_F(EntryWatcherServiceTest, WatchDirectory_AlreadyExists) {
+  std::vector<base::File::Error> log;
+
+  const bool recursive = false;
+  service_->WatchDirectory(
+      kExtensionId, testing_url_, recursive, base::Bind(&LogStatus, &log));
+  base::RunLoop().RunUntilIdle();
+
+  ASSERT_EQ(1u, log.size());
+  EXPECT_EQ(base::File::FILE_OK, log[0]);
+
+  ASSERT_EQ(2u, dispatch_event_log_targets_.size());
+  ASSERT_EQ(2u, dispatch_event_log_events_.size());
+
+  {
+    const std::vector<fileapi::FileSystemURL> watched_entries =
+        service_->GetWatchedEntries(kExtensionId);
+    EXPECT_EQ(1u, watched_entries.size());
+  }
+
+  service_->WatchDirectory(
+      kExtensionId, testing_url_, recursive, base::Bind(&LogStatus, &log));
+  base::RunLoop().RunUntilIdle();
+
+  ASSERT_EQ(2u, log.size());
+  EXPECT_EQ(base::File::FILE_ERROR_EXISTS, log[1]);
+
+  // No new unexpected events.
+  ASSERT_EQ(2u, dispatch_event_log_targets_.size());
+  ASSERT_EQ(2u, dispatch_event_log_events_.size());
+
+  {
+    const std::vector<fileapi::FileSystemURL> watched_entries =
+        service_->GetWatchedEntries(kExtensionId);
+    EXPECT_EQ(1u, watched_entries.size());
+  }
+}
+
+TEST_F(EntryWatcherServiceTest, WatchDirectory_Recursive) {
+  std::vector<base::File::Error> log;
+
+  const bool recursive = true;
+  service_->WatchDirectory(
+      kExtensionId, testing_url_, recursive, base::Bind(&LogStatus, &log));
+  base::RunLoop().RunUntilIdle();
+
+  // Recursive watchers are not supported yet.
+  ASSERT_EQ(1u, log.size());
+  EXPECT_EQ(base::File::FILE_ERROR_INVALID_OPERATION, log[0]);
+
+  // No unexpected events.
+  ASSERT_EQ(0u, dispatch_event_log_targets_.size());
+  ASSERT_EQ(0u, dispatch_event_log_events_.size());
+
+  const std::vector<fileapi::FileSystemURL> watched_entries =
+      service_->GetWatchedEntries(kExtensionId);
+  EXPECT_EQ(0u, watched_entries.size());
+}
+
+TEST_F(EntryWatcherServiceTest, UnwatchEntry) {
+  std::vector<base::File::Error> watch_log;
+
+  const bool recursive = false;
+  service_->WatchDirectory(kExtensionId,
+                           testing_url_,
+                           recursive,
+                           base::Bind(&LogStatus, &watch_log));
+  base::RunLoop().RunUntilIdle();
+
+  ASSERT_EQ(1u, watch_log.size());
+  EXPECT_EQ(base::File::FILE_OK, watch_log[0]);
+
+  ASSERT_EQ(2u, dispatch_event_log_targets_.size());
+  ASSERT_EQ(2u, dispatch_event_log_events_.size());
+
+  {
+    const std::vector<fileapi::FileSystemURL> watched_entries =
+        service_->GetWatchedEntries(kExtensionId);
+    EXPECT_EQ(1u, watched_entries.size());
+  }
+
+  std::vector<base::File::Error> unwatch_log;
+  service_->UnwatchEntry(
+      kExtensionId, testing_url_, base::Bind(&LogStatus, &unwatch_log));
+  base::RunLoop().RunUntilIdle();
+
+  ASSERT_EQ(1u, unwatch_log.size());
+  EXPECT_EQ(base::File::FILE_OK, unwatch_log[0]);
+
+  {
+    const std::vector<fileapi::FileSystemURL> watched_entries =
+        service_->GetWatchedEntries(kExtensionId);
+    EXPECT_EQ(0u, watched_entries.size());
+  }
+}
+
+TEST_F(EntryWatcherServiceTest, UnwatchEntry_NotFound) {
+  std::vector<base::File::Error> log;
+  service_->UnwatchEntry(
+      kExtensionId, testing_url_, base::Bind(&LogStatus, &log));
+  base::RunLoop().RunUntilIdle();
+
+  ASSERT_EQ(1u, log.size());
+  EXPECT_EQ(base::File::FILE_ERROR_NOT_FOUND, log[0]);
+}
+
+}  // namespace extensions