1 // Copyright 2011 The Chromium Authors
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "base/files/file_path.h"
6 #include "net/disk_cache/blockfile/disk_format.h"
7 #include "net/disk_cache/blockfile/storage_block-inl.h"
8 #include "net/disk_cache/blockfile/storage_block.h"
9 #include "net/disk_cache/disk_cache_test_base.h"
10 #include "net/disk_cache/disk_cache_test_util.h"
11 #include "testing/gtest/include/gtest/gtest.h"
12
13 typedef disk_cache::StorageBlock<disk_cache::EntryStore> CacheEntryBlock;
14
TEST_F(DiskCacheTest,StorageBlock_LoadStore)15 TEST_F(DiskCacheTest, StorageBlock_LoadStore) {
16 base::FilePath filename = cache_path_.AppendASCII("a_test");
17 auto file = base::MakeRefCounted<disk_cache::MappedFile>();
18 ASSERT_TRUE(CreateCacheTestFile(filename));
19 ASSERT_TRUE(file->Init(filename, 8192));
20
21 CacheEntryBlock entry1(file.get(), disk_cache::Addr(0xa0010001));
22 memset(entry1.Data(), 0, sizeof(disk_cache::EntryStore));
23 entry1.Data()->hash = 0xaa5555aa;
24 entry1.Data()->rankings_node = 0xa0010002;
25
26 EXPECT_TRUE(entry1.Store());
27 entry1.Data()->hash = 0x88118811;
28 entry1.Data()->rankings_node = 0xa0040009;
29
30 EXPECT_TRUE(entry1.Load());
31 EXPECT_EQ(0xaa5555aa, entry1.Data()->hash);
32 EXPECT_EQ(0xa0010002, entry1.Data()->rankings_node);
33 }
34
TEST_F(DiskCacheTest,StorageBlock_SetData)35 TEST_F(DiskCacheTest, StorageBlock_SetData) {
36 base::FilePath filename = cache_path_.AppendASCII("a_test");
37 auto file = base::MakeRefCounted<disk_cache::MappedFile>();
38 ASSERT_TRUE(CreateCacheTestFile(filename));
39 ASSERT_TRUE(file->Init(filename, 8192));
40
41 CacheEntryBlock entry1(file.get(), disk_cache::Addr(0xa0010001));
42 entry1.Data()->hash = 0xaa5555aa;
43
44 CacheEntryBlock entry2(file.get(), disk_cache::Addr(0xa0010002));
45 EXPECT_TRUE(entry2.Load());
46 EXPECT_TRUE(entry2.Data() != nullptr);
47 EXPECT_TRUE(0 == entry2.Data()->hash);
48
49 EXPECT_TRUE(entry2.Data() != entry1.Data());
50 entry2.SetData(entry1.Data());
51 EXPECT_EQ(0xaa5555aa, entry2.Data()->hash);
52 EXPECT_TRUE(entry2.Data() == entry1.Data());
53 }
54
TEST_F(DiskCacheTest,StorageBlock_SetModified)55 TEST_F(DiskCacheTest, StorageBlock_SetModified) {
56 base::FilePath filename = cache_path_.AppendASCII("a_test");
57 auto file = base::MakeRefCounted<disk_cache::MappedFile>();
58 ASSERT_TRUE(CreateCacheTestFile(filename));
59 ASSERT_TRUE(file->Init(filename, 8192));
60
61 auto entry1 = std::make_unique<CacheEntryBlock>(file.get(),
62 disk_cache::Addr(0xa0010003));
63 EXPECT_TRUE(entry1->Load());
64 EXPECT_TRUE(0 == entry1->Data()->hash);
65 entry1->Data()->hash = 0x45687912;
66 entry1->set_modified();
67 entry1.reset();
68
69 CacheEntryBlock entry2(file.get(), disk_cache::Addr(0xa0010003));
70 EXPECT_TRUE(entry2.Load());
71 EXPECT_TRUE(0x45687912 == entry2.Data()->hash);
72 }
73
TEST_F(DiskCacheTest,StorageBlock_DifferentNumBuffers)74 TEST_F(DiskCacheTest, StorageBlock_DifferentNumBuffers) {
75 base::FilePath filename = cache_path_.AppendASCII("a_test");
76 auto file = base::MakeRefCounted<disk_cache::MappedFile>();
77 ASSERT_TRUE(CreateCacheTestFile(filename));
78 ASSERT_TRUE(file->Init(filename, 8192));
79
80 // 2 buffers at index 1.
81 CacheEntryBlock entry1(file.get(), disk_cache::Addr(0xa1010001));
82 EXPECT_TRUE(entry1.Load());
83
84 // 1 buffer at index 3.
85 CacheEntryBlock entry2(file.get(), disk_cache::Addr(0xa0010003));
86 EXPECT_TRUE(entry2.Load());
87
88 // Now specify 2 buffers at index 1.
89 entry2.CopyFrom(&entry1);
90 EXPECT_TRUE(entry2.Load());
91 }
92