116 lines
3.5 KiB
C++
116 lines
3.5 KiB
C++
// Copyright 2017 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "net/disk_cache/backend_cleanup_tracker.h"
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#include "base/files/scoped_temp_dir.h"
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#include "base/functional/bind.h"
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#include "base/functional/callback.h"
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#include "base/memory/ref_counted.h"
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#include "net/test/test_with_task_environment.h"
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#include "testing/gmock/include/gmock/gmock.h"
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#include "testing/gtest/include/gtest/gtest.h"
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namespace disk_cache {
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namespace {
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using testing::UnorderedElementsAre;
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using testing::IsEmpty;
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class BackendCleanupTrackerTest : public net::TestWithTaskEnvironment {
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protected:
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BackendCleanupTrackerTest() = default;
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void SetUp() override {
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testing::Test::SetUp();
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ASSERT_TRUE(tmp_dir_.CreateUniqueTempDir());
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// Create two unique paths.
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path1_ = tmp_dir_.GetPath().Append(FILE_PATH_LITERAL("a"));
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path2_ = tmp_dir_.GetPath().Append(FILE_PATH_LITERAL("b"));
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}
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void RecordCall(int val) { called_.push_back(val); }
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base::OnceClosure RecordCallClosure(int val) {
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return base::BindOnce(&BackendCleanupTrackerTest::RecordCall,
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base::Unretained(this), val);
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}
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base::ScopedTempDir tmp_dir_;
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base::FilePath path1_;
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base::FilePath path2_;
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std::vector<int> called_;
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};
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TEST_F(BackendCleanupTrackerTest, DistinctPath) {
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scoped_refptr<BackendCleanupTracker> t1 =
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BackendCleanupTracker::TryCreate(path1_, RecordCallClosure(1));
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scoped_refptr<BackendCleanupTracker> t2 =
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BackendCleanupTracker::TryCreate(path2_, RecordCallClosure(2));
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// Both should be created immediately (since the paths are distinct), none of
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// the callbacks should be invoked.
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ASSERT_TRUE(t1 != nullptr);
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ASSERT_TRUE(t2 != nullptr);
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RunUntilIdle();
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EXPECT_TRUE(called_.empty());
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t1->AddPostCleanupCallback(RecordCallClosure(3));
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t2->AddPostCleanupCallback(RecordCallClosure(4));
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t2->AddPostCleanupCallback(RecordCallClosure(5));
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// Just adding callbacks doesn't run them, nor just an event loop.
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EXPECT_TRUE(called_.empty());
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RunUntilIdle();
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EXPECT_TRUE(called_.empty());
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t1 = nullptr;
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// Callbacks are not invoked immediately.
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EXPECT_TRUE(called_.empty());
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// ... but via the event loop.
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RunUntilIdle();
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EXPECT_THAT(called_, UnorderedElementsAre(3));
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// Now cleanup t2.
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t2 = nullptr;
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EXPECT_THAT(called_, UnorderedElementsAre(3));
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RunUntilIdle();
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EXPECT_THAT(called_, UnorderedElementsAre(3, 4, 5));
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}
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TEST_F(BackendCleanupTrackerTest, SamePath) {
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scoped_refptr<BackendCleanupTracker> t1 =
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BackendCleanupTracker::TryCreate(path1_, RecordCallClosure(1));
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scoped_refptr<BackendCleanupTracker> t2 =
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BackendCleanupTracker::TryCreate(path1_, RecordCallClosure(2));
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// Since path is the same, only first call succeeds. No callback yet,
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// since t1 controls the path.
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ASSERT_TRUE(t1 != nullptr);
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EXPECT_TRUE(t2 == nullptr);
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RunUntilIdle();
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EXPECT_TRUE(called_.empty());
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t1->AddPostCleanupCallback(RecordCallClosure(3));
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t1->AddPostCleanupCallback(RecordCallClosure(4));
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// Create an alias denoting work in progress.
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scoped_refptr<BackendCleanupTracker> alias = t1;
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t1 = nullptr;
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EXPECT_TRUE(called_.empty());
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RunUntilIdle();
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EXPECT_TRUE(called_.empty());
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alias = nullptr;
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EXPECT_TRUE(called_.empty());
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RunUntilIdle();
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// Both the callback passed to the TryCreate that failed and ones passed to
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// AddPostCleanupCallback are called.
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EXPECT_THAT(called_, UnorderedElementsAre(2, 3, 4));
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}
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} // namespace
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} // namespace disk_cache
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