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- // Copyright 2016 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 <utility>
- #include "base/bind.h"
- #include "base/files/file_util.h"
- #include "base/files/scoped_temp_dir.h"
- #include "base/hash/hash.h"
- #include "base/memory/ptr_util.h"
- #include "base/run_loop.h"
- #include "base/task/single_thread_task_runner.h"
- #include "base/test/task_environment.h"
- #include "base/threading/thread_task_runner_handle.h"
- #include "chromeos/printing/ppd_cache.h"
- #include "testing/gtest/include/gtest/gtest.h"
- namespace chromeos {
- namespace {
- // This fixture just points the cache at a temporary directory for the life of
- // the test.
- class PpdCacheTest : public ::testing::Test {
- public:
- PpdCacheTest()
- : task_environment_(base::test::TaskEnvironment::MainThreadType::IO) {}
- void SetUp() override {
- ASSERT_TRUE(ppd_cache_temp_dir_.CreateUniqueTempDir());
- }
- // Make and return a cache for the test that uses a temporary directory
- // which is cleaned up at the end of the test. Note that we pass
- // a (nonexistant) subdirectory of temp_dir_ to the cache to exercise
- // the lazy-creation-of-the-cache-directory code.
- scoped_refptr<PpdCache> CreateTestCache() {
- return PpdCache::CreateForTesting(
- ppd_cache_temp_dir_.GetPath().Append("Cache"),
- task_environment_.GetMainThreadTaskRunner());
- }
- void CaptureFindResult(const PpdCache::FindResult& result) {
- ++captured_find_results_;
- find_result_ = result;
- }
- protected:
- // Environment for task schedulers.
- base::test::TaskEnvironment task_environment_;
- // Number of find results we've captured.
- int captured_find_results_ = 0;
- // Most recent captured result.
- PpdCache::FindResult find_result_;
- // Overrider for DIR_CHROMEOS_PPD_CACHE that points it at a temporary
- // directory for the life of the test.
- base::ScopedTempDir ppd_cache_temp_dir_;
- };
- // Test that we miss on an empty cache.
- TEST_F(PpdCacheTest, SimpleMiss) {
- auto cache = CreateTestCache();
- cache->Find("foo", base::BindOnce(&PpdCacheTest::CaptureFindResult,
- base::Unretained(this)));
- task_environment_.RunUntilIdle();
- EXPECT_EQ(captured_find_results_, 1);
- EXPECT_FALSE(find_result_.success);
- }
- TEST_F(PpdCacheTest, MissThenHit) {
- auto cache = CreateTestCache();
- const char kTestKey[] = "My totally awesome key";
- const char kTestKey2[] = "A different key";
- const char kTestContents[] = "Like, totally awesome contents";
- cache->Find(kTestKey, base::BindOnce(&PpdCacheTest::CaptureFindResult,
- base::Unretained(this)));
- task_environment_.RunUntilIdle();
- EXPECT_EQ(captured_find_results_, 1);
- EXPECT_FALSE(find_result_.success);
- cache->Store(kTestKey, kTestContents);
- task_environment_.RunUntilIdle();
- cache->Find(kTestKey, base::BindOnce(&PpdCacheTest::CaptureFindResult,
- base::Unretained(this)));
- task_environment_.RunUntilIdle();
- EXPECT_EQ(captured_find_results_, 2);
- EXPECT_TRUE(find_result_.success);
- EXPECT_EQ(find_result_.contents, kTestContents);
- EXPECT_LT(find_result_.age, base::Minutes(5));
- cache->Find(kTestKey2, base::BindOnce(&PpdCacheTest::CaptureFindResult,
- base::Unretained(this)));
- task_environment_.RunUntilIdle();
- EXPECT_EQ(captured_find_results_, 3);
- EXPECT_FALSE(find_result_.success);
- }
- // Test that we fill in the age field with something plausible.
- TEST_F(PpdCacheTest, HitAge) {
- auto cache = CreateTestCache();
- const char kTestKey[] = "My totally awesome key";
- const char kTestContents[] = "Like, totally awesome contents";
- cache->Store(kTestKey, kTestContents);
- task_environment_.RunUntilIdle();
- cache->Find(kTestKey, base::BindOnce(&PpdCacheTest::CaptureFindResult,
- base::Unretained(this)));
- task_environment_.RunUntilIdle();
- EXPECT_EQ(captured_find_results_, 1);
- // The age should be well under a second, but accept anything under an hour.
- EXPECT_LT(find_result_.age, base::Hours(1));
- }
- } // namespace
- } // namespace chromeos
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