| // Copyright 2013 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 <algorithm> |
| |
| #include "apps/saved_files_service.h" |
| #include "base/files/file_path.h" |
| #include "base/strings/string_number_conversions.h" |
| #include "base/test/values_test_util.h" |
| #include "base/values.h" |
| #include "chrome/browser/extensions/test_extension_environment.h" |
| #include "chrome/test/base/testing_profile.h" |
| #include "extensions/browser/extension_prefs.h" |
| #include "extensions/browser/extension_system.h" |
| #include "extensions/common/extension.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| #define TRACE_CALL(expression) \ |
| do { \ |
| SCOPED_TRACE(#expression); \ |
| expression; \ |
| } while (0) |
| |
| using apps::SavedFileEntry; |
| using apps::SavedFilesService; |
| |
| namespace { |
| |
| std::string GenerateId(int i) { |
| return base::IntToString(i) + ":filename.ext"; |
| } |
| |
| } // namespace |
| |
| class SavedFilesServiceUnitTest : public testing::Test { |
| protected: |
| virtual void SetUp() OVERRIDE { |
| testing::Test::SetUp(); |
| extension_ = env_.MakeExtension(*base::test::ParseJson( |
| "{" |
| " \"app\": {" |
| " \"background\": {" |
| " \"scripts\": [\"background.js\"]" |
| " }" |
| " }," |
| " \"permissions\": [" |
| " {\"fileSystem\": [\"retainEntries\"]}" |
| " ]" |
| "}")); |
| service_ = SavedFilesService::Get(env_.profile()); |
| path_ = base::FilePath(FILE_PATH_LITERAL("filename.ext")); |
| } |
| |
| virtual void TearDown() OVERRIDE { |
| SavedFilesService::ClearMaxSequenceNumberForTest(); |
| SavedFilesService::ClearLruSizeForTest(); |
| testing::Test::TearDown(); |
| } |
| |
| // Check that a registered file entry has the correct value. |
| void CheckEntrySequenceNumber(int id, int sequence_number) { |
| std::string id_string = GenerateId(id); |
| SCOPED_TRACE(id_string); |
| EXPECT_TRUE(service_->IsRegistered(extension_->id(), id_string)); |
| const SavedFileEntry* entry = |
| service_->GetFileEntry(extension_->id(), id_string); |
| ASSERT_TRUE(entry); |
| EXPECT_EQ(id_string, entry->id); |
| EXPECT_EQ(path_, entry->path); |
| EXPECT_TRUE(entry->is_directory); |
| EXPECT_EQ(sequence_number, entry->sequence_number); |
| } |
| |
| // Check that a range of registered file entries have the correct values. |
| void CheckRangeEnqueuedInOrder(int start, int end) { |
| SavedFileEntry entry; |
| for (int i = start; i < end; i++) { |
| CheckEntrySequenceNumber(i, i + 1); |
| } |
| } |
| |
| extensions::TestExtensionEnvironment env_; |
| const extensions::Extension* extension_; |
| SavedFilesService* service_; |
| base::FilePath path_; |
| }; |
| |
| TEST_F(SavedFilesServiceUnitTest, RetainTwoFilesTest) { |
| service_->RegisterFileEntry(extension_->id(), GenerateId(1), path_, true); |
| service_->RegisterFileEntry(extension_->id(), GenerateId(2), path_, true); |
| service_->RegisterFileEntry(extension_->id(), GenerateId(3), path_, true); |
| |
| // Test that no entry has a sequence number. |
| TRACE_CALL(CheckEntrySequenceNumber(1, 0)); |
| TRACE_CALL(CheckEntrySequenceNumber(2, 0)); |
| TRACE_CALL(CheckEntrySequenceNumber(3, 0)); |
| |
| // Test that only entry #1 has a sequence number. |
| service_->EnqueueFileEntry(extension_->id(), GenerateId(1)); |
| TRACE_CALL(CheckEntrySequenceNumber(1, 1)); |
| TRACE_CALL(CheckEntrySequenceNumber(2, 0)); |
| |
| // Test that entry #1 has not changed sequence number because it is the most |
| // recently enqueued entry. |
| service_->EnqueueFileEntry(extension_->id(), GenerateId(1)); |
| TRACE_CALL(CheckEntrySequenceNumber(1, 1)); |
| TRACE_CALL(CheckEntrySequenceNumber(2, 0)); |
| |
| // Test that entry #1 is unchanged and entry #2 has been assigned the next |
| // sequence number. |
| service_->EnqueueFileEntry(extension_->id(), GenerateId(2)); |
| TRACE_CALL(CheckEntrySequenceNumber(1, 1)); |
| TRACE_CALL(CheckEntrySequenceNumber(2, 2)); |
| |
| // Test that both entries #1 and #2 are unchanged because #2 is the most |
| // recently enqueued entry. |
| service_->EnqueueFileEntry(extension_->id(), GenerateId(2)); |
| TRACE_CALL(CheckEntrySequenceNumber(1, 1)); |
| TRACE_CALL(CheckEntrySequenceNumber(2, 2)); |
| |
| // Test that entry #1 has been assigned the next sequence number. |
| service_->EnqueueFileEntry(extension_->id(), GenerateId(1)); |
| TRACE_CALL(CheckEntrySequenceNumber(1, 3)); |
| TRACE_CALL(CheckEntrySequenceNumber(2, 2)); |
| TRACE_CALL(CheckEntrySequenceNumber(3, 0)); |
| |
| EXPECT_FALSE(service_->IsRegistered(extension_->id(), "another id")); |
| SavedFileEntry entry; |
| EXPECT_FALSE(service_->GetFileEntry(extension_->id(), "another id")); |
| |
| // ClearQueueIfNoRetainPermission should be a no-op because the app has the |
| // fileSystem.retainEntries permission. |
| service_->ClearQueueIfNoRetainPermission(extension_); |
| TRACE_CALL(CheckEntrySequenceNumber(1, 3)); |
| TRACE_CALL(CheckEntrySequenceNumber(2, 2)); |
| TRACE_CALL(CheckEntrySequenceNumber(3, 0)); |
| |
| // Test that after a clear, retained file entries are unchanged, but file |
| // entries that have been registered but not retained are no longer |
| // registered. |
| service_->Clear(extension_->id()); |
| TRACE_CALL(CheckEntrySequenceNumber(1, 3)); |
| TRACE_CALL(CheckEntrySequenceNumber(2, 2)); |
| EXPECT_FALSE(service_->IsRegistered(extension_->id(), GenerateId(3))); |
| } |
| |
| TEST_F(SavedFilesServiceUnitTest, NoRetainEntriesPermissionTest) { |
| extension_ = env_.MakeExtension(*base::test::ParseJson( |
| "{\"app\": {\"background\": {\"scripts\": [\"background.js\"]}}," |
| "\"permissions\": [\"fileSystem\"]}")); |
| service_->RegisterFileEntry(extension_->id(), GenerateId(1), path_, true); |
| TRACE_CALL(CheckEntrySequenceNumber(1, 0)); |
| SavedFileEntry entry; |
| service_->EnqueueFileEntry(extension_->id(), GenerateId(1)); |
| TRACE_CALL(CheckEntrySequenceNumber(1, 1)); |
| EXPECT_FALSE(service_->IsRegistered(extension_->id(), "another id")); |
| EXPECT_FALSE(service_->GetFileEntry(extension_->id(), "another id")); |
| |
| // ClearQueueIfNoRetainPermission should clear the queue, since the app does |
| // not have the "retainEntries" permission. |
| service_->ClearQueueIfNoRetainPermission(extension_); |
| std::vector<SavedFileEntry> entries = |
| service_->GetAllFileEntries(extension_->id()); |
| EXPECT_TRUE(entries.empty()); |
| } |
| |
| TEST_F(SavedFilesServiceUnitTest, EvictionTest) { |
| SavedFilesService::SetLruSizeForTest(10); |
| for (int i = 0; i < 10; i++) { |
| service_->RegisterFileEntry(extension_->id(), GenerateId(i), path_, true); |
| service_->EnqueueFileEntry(extension_->id(), GenerateId(i)); |
| } |
| service_->RegisterFileEntry(extension_->id(), GenerateId(10), path_, true); |
| |
| // Expect that entries 0 to 9 are in the queue, but 10 is not. |
| TRACE_CALL(CheckRangeEnqueuedInOrder(0, 10)); |
| TRACE_CALL(CheckEntrySequenceNumber(10, 0)); |
| service_->EnqueueFileEntry(extension_->id(), GenerateId(10)); |
| |
| // Expect that entries 1 to 10 are in the queue, but entry 0 is not. |
| TRACE_CALL(CheckEntrySequenceNumber(0, 0)); |
| TRACE_CALL(CheckRangeEnqueuedInOrder(1, 11)); |
| |
| // Check that retained entries are unchanged after a clear. |
| service_->Clear(extension_->id()); |
| SavedFileEntry entry; |
| EXPECT_FALSE(service_->GetFileEntry(extension_->id(), GenerateId(0))); |
| TRACE_CALL(CheckRangeEnqueuedInOrder(1, 11)); |
| |
| // Expect that entry 2 is now at the back of the queue, and no further entries |
| // have been evicted. |
| service_->EnqueueFileEntry(extension_->id(), GenerateId(2)); |
| TRACE_CALL(CheckEntrySequenceNumber(2, 12)); |
| TRACE_CALL(CheckRangeEnqueuedInOrder(1, 1)); |
| TRACE_CALL(CheckRangeEnqueuedInOrder(3, 11)); |
| |
| // Check that retained entries are unchanged after a clear. |
| service_->Clear(extension_->id()); |
| TRACE_CALL(CheckEntrySequenceNumber(2, 12)); |
| TRACE_CALL(CheckRangeEnqueuedInOrder(1, 1)); |
| TRACE_CALL(CheckRangeEnqueuedInOrder(3, 11)); |
| } |
| |
| TEST_F(SavedFilesServiceUnitTest, SequenceNumberCompactionTest) { |
| SavedFilesService::SetMaxSequenceNumberForTest(8); |
| SavedFilesService::SetLruSizeForTest(8); |
| for (int i = 0; i < 4; i++) { |
| service_->RegisterFileEntry(extension_->id(), GenerateId(i), path_, true); |
| service_->EnqueueFileEntry(extension_->id(), GenerateId(i)); |
| } |
| service_->EnqueueFileEntry(extension_->id(), GenerateId(2)); |
| service_->EnqueueFileEntry(extension_->id(), GenerateId(3)); |
| service_->EnqueueFileEntry(extension_->id(), GenerateId(2)); |
| |
| // The sequence numbers should be sparse, as they have not gone over the |
| // limit. |
| TRACE_CALL(CheckEntrySequenceNumber(0, 1)); |
| TRACE_CALL(CheckEntrySequenceNumber(1, 2)); |
| TRACE_CALL(CheckEntrySequenceNumber(2, 7)); |
| TRACE_CALL(CheckEntrySequenceNumber(3, 6)); |
| service_->Clear(extension_->id()); |
| TRACE_CALL(CheckEntrySequenceNumber(0, 1)); |
| TRACE_CALL(CheckEntrySequenceNumber(1, 2)); |
| TRACE_CALL(CheckEntrySequenceNumber(2, 7)); |
| TRACE_CALL(CheckEntrySequenceNumber(3, 6)); |
| |
| // This should push the sequence number to the limit of 8, and trigger a |
| // sequence number compaction. Expect that the sequence numbers are |
| // contiguous from 1 to 4. |
| service_->EnqueueFileEntry(extension_->id(), GenerateId(3)); |
| TRACE_CALL(CheckRangeEnqueuedInOrder(0, 4)); |
| service_->Clear(extension_->id()); |
| TRACE_CALL(CheckRangeEnqueuedInOrder(0, 4)); |
| } |