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Unified Diff: net/disk_cache/blockfile/bitmap_unittest.cc

Issue 992733002: Remove //net (except for Android test stuff) and sdch (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 9 months ago
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Index: net/disk_cache/blockfile/bitmap_unittest.cc
diff --git a/net/disk_cache/blockfile/bitmap_unittest.cc b/net/disk_cache/blockfile/bitmap_unittest.cc
deleted file mode 100644
index a0748bf81a54b5f47a566bd513fcdb7d10f876af..0000000000000000000000000000000000000000
--- a/net/disk_cache/blockfile/bitmap_unittest.cc
+++ /dev/null
@@ -1,293 +0,0 @@
-// Copyright (c) 2009 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 "net/disk_cache/blockfile/bitmap.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-TEST(BitmapTest, OverAllocate) {
- // Test that we don't over allocate on boundaries.
- disk_cache::Bitmap map32(32, false);
- EXPECT_EQ(1, map32.ArraySize());
-
- disk_cache::Bitmap map64(64, false);
- EXPECT_EQ(2, map64.ArraySize());
-}
-
-TEST(BitmapTest, DefaultConstructor) {
- // Verify that the default constructor doesn't allocate a bitmap.
- disk_cache::Bitmap map;
- EXPECT_EQ(0, map.Size());
- EXPECT_EQ(0, map.ArraySize());
- EXPECT_TRUE(NULL == map.GetMap());
-}
-
-TEST(BitmapTest, Basics) {
- disk_cache::Bitmap bitmap(80, true);
- const uint32 kValue = 0x74f10060;
-
- // Test proper allocation size.
- EXPECT_EQ(80, bitmap.Size());
- EXPECT_EQ(3, bitmap.ArraySize());
-
- // Test Set/GetMapElement.
- EXPECT_EQ(0U, bitmap.GetMapElement(1));
- bitmap.SetMapElement(1, kValue);
- EXPECT_EQ(kValue, bitmap.GetMapElement(1));
-
- // Test Set/Get.
- EXPECT_TRUE(bitmap.Get(48));
- EXPECT_FALSE(bitmap.Get(49));
- EXPECT_FALSE(bitmap.Get(50));
- bitmap.Set(49, true);
- EXPECT_TRUE(bitmap.Get(48));
- EXPECT_TRUE(bitmap.Get(49));
- EXPECT_FALSE(bitmap.Get(50));
- bitmap.Set(49, false);
- EXPECT_TRUE(bitmap.Get(48));
- EXPECT_FALSE(bitmap.Get(49));
- EXPECT_FALSE(bitmap.Get(50));
-
- for (int i = 0; i < 80; i++)
- bitmap.Set(i, (i % 7) == 0);
- for (int i = 0; i < 80; i++)
- EXPECT_EQ(bitmap.Get(i), (i % 7) == 0);
-}
-
-TEST(BitmapTest, Toggle) {
- static const int kSize = 100;
- disk_cache::Bitmap map(kSize, true);
- for (int i = 0; i < 100; i += 3)
- map.Toggle(i);
- for (int i = 0; i < 100; i += 9)
- map.Toggle(i);
- for (int i = 0; i < 100; ++i)
- EXPECT_EQ((i % 3 == 0) && (i % 9 != 0), map.Get(i));
-}
-
-TEST(BitmapTest, Resize) {
- const int kSize1 = 50;
- const int kSize2 = 100;
- const int kSize3 = 30;
- disk_cache::Bitmap map(kSize1, true);
- map.Resize(kSize1, true);
- EXPECT_EQ(kSize1, map.Size());
- EXPECT_FALSE(map.Get(0));
- EXPECT_FALSE(map.Get(kSize1 - 1));
-
- map.Resize(kSize2, true);
- EXPECT_FALSE(map.Get(kSize1 - 1));
- EXPECT_FALSE(map.Get(kSize1));
- EXPECT_FALSE(map.Get(kSize2 - 1));
- EXPECT_EQ(kSize2, map.Size());
-
- map.Resize(kSize3, true);
- EXPECT_FALSE(map.Get(kSize3 - 1));
- EXPECT_EQ(kSize3, map.Size());
-}
-
-TEST(BitmapTest, Map) {
- // Tests Set/GetMap and the constructor that takes an array.
- const int kMapSize = 80;
- char local_map[kMapSize];
- for (int i = 0; i < kMapSize; i++)
- local_map[i] = static_cast<char>(i);
-
- disk_cache::Bitmap bitmap(kMapSize * 8, false);
- bitmap.SetMap(reinterpret_cast<uint32*>(local_map), kMapSize / 4);
- for (int i = 0; i < kMapSize; i++) {
- if (i % 2)
- EXPECT_TRUE(bitmap.Get(i * 8));
- else
- EXPECT_FALSE(bitmap.Get(i * 8));
- }
-
- EXPECT_EQ(0, memcmp(local_map, bitmap.GetMap(), kMapSize));
-
- // Now let's create a bitmap that shares local_map as storage.
- disk_cache::Bitmap bitmap2(reinterpret_cast<uint32*>(local_map),
- kMapSize * 8, kMapSize / 4);
- EXPECT_EQ(0, memcmp(local_map, bitmap2.GetMap(), kMapSize));
-
- local_map[kMapSize / 2] = 'a';
- EXPECT_EQ(0, memcmp(local_map, bitmap2.GetMap(), kMapSize));
- EXPECT_NE(0, memcmp(local_map, bitmap.GetMap(), kMapSize));
-}
-
-TEST(BitmapTest, SetAll) {
- // Tests SetAll and Clear.
- const int kMapSize = 80;
- char ones[kMapSize];
- char zeros[kMapSize];
- memset(ones, 0xff, kMapSize);
- memset(zeros, 0, kMapSize);
-
- disk_cache::Bitmap map(kMapSize * 8, true);
- EXPECT_EQ(0, memcmp(zeros, map.GetMap(), kMapSize));
- map.SetAll(true);
- EXPECT_EQ(0, memcmp(ones, map.GetMap(), kMapSize));
- map.SetAll(false);
- EXPECT_EQ(0, memcmp(zeros, map.GetMap(), kMapSize));
- map.SetAll(true);
- map.Clear();
- EXPECT_EQ(0, memcmp(zeros, map.GetMap(), kMapSize));
-}
-
-TEST(BitmapTest, Range) {
- // Tests SetRange() and TestRange().
- disk_cache::Bitmap map(100, true);
- EXPECT_FALSE(map.TestRange(0, 100, true));
- map.Set(50, true);
- EXPECT_TRUE(map.TestRange(0, 100, true));
-
- map.SetAll(false);
- EXPECT_FALSE(map.TestRange(0, 1, true));
- EXPECT_FALSE(map.TestRange(30, 31, true));
- EXPECT_FALSE(map.TestRange(98, 99, true));
- EXPECT_FALSE(map.TestRange(99, 100, true));
- EXPECT_FALSE(map.TestRange(0, 100, true));
-
- EXPECT_TRUE(map.TestRange(0, 1, false));
- EXPECT_TRUE(map.TestRange(31, 32, false));
- EXPECT_TRUE(map.TestRange(32, 33, false));
- EXPECT_TRUE(map.TestRange(99, 100, false));
- EXPECT_TRUE(map.TestRange(0, 32, false));
-
- map.SetRange(11, 21, true);
- for (int i = 0; i < 100; i++)
- EXPECT_EQ(map.Get(i), (i >= 11) && (i < 21));
-
- EXPECT_TRUE(map.TestRange(0, 32, true));
- EXPECT_TRUE(map.TestRange(0, 100, true));
- EXPECT_TRUE(map.TestRange(11, 21, true));
- EXPECT_TRUE(map.TestRange(15, 16, true));
- EXPECT_TRUE(map.TestRange(5, 12, true));
- EXPECT_TRUE(map.TestRange(5, 11, false));
- EXPECT_TRUE(map.TestRange(20, 60, true));
- EXPECT_TRUE(map.TestRange(21, 60, false));
-
- map.SetAll(true);
- EXPECT_FALSE(map.TestRange(0, 100, false));
-
- map.SetRange(70, 99, false);
- EXPECT_TRUE(map.TestRange(69, 99, false));
- EXPECT_TRUE(map.TestRange(70, 100, false));
- EXPECT_FALSE(map.TestRange(70, 99, true));
-}
-
-TEST(BitmapTest, FindNextSetBitBeforeLimit) {
- // Test FindNextSetBitBeforeLimit. Only check bits from 111 to 277 (limit
- // bit == 278). Should find all multiples of 27 in that range.
- disk_cache::Bitmap map(500, true);
- for (int i = 0; i < 500; i++)
- map.Set(i, (i % 27) == 0);
-
- int find_me = 135; // First one expected.
- for (int index = 111; map.FindNextSetBitBeforeLimit(&index, 278);
- ++index) {
- EXPECT_EQ(index, find_me);
- find_me += 27;
- }
- EXPECT_EQ(find_me, 297); // The next find_me after 278.
-}
-
-TEST(BitmapTest, FindNextSetBitBeforeLimitAligned) {
- // Test FindNextSetBitBeforeLimit on aligned scans.
- disk_cache::Bitmap map(256, true);
- for (int i = 0; i < 256; i++)
- map.Set(i, (i % 32) == 0);
- for (int i = 0; i < 256; i += 32) {
- int index = i + 1;
- EXPECT_FALSE(map.FindNextSetBitBeforeLimit(&index, i + 32));
- }
-}
-
-TEST(BitmapTest, FindNextSetBit) {
- // Test FindNextSetBit. Check all bits in map. Should find multiples
- // of 7 from 0 to 98.
- disk_cache::Bitmap map(100, true);
- for (int i = 0; i < 100; i++)
- map.Set(i, (i % 7) == 0);
-
- int find_me = 0; // First one expected.
- for (int index = 0; map.FindNextSetBit(&index); ++index) {
- EXPECT_EQ(index, find_me);
- find_me += 7;
- }
- EXPECT_EQ(find_me, 105); // The next find_me after 98.
-}
-
-TEST(BitmapTest, FindNextBit) {
- // Almost the same test as FindNextSetBit, but find zeros instead of ones.
- disk_cache::Bitmap map(100, false);
- map.SetAll(true);
- for (int i = 0; i < 100; i++)
- map.Set(i, (i % 7) != 0);
-
- int find_me = 0; // First one expected.
- for (int index = 0; map.FindNextBit(&index, 100, false); ++index) {
- EXPECT_EQ(index, find_me);
- find_me += 7;
- }
- EXPECT_EQ(find_me, 105); // The next find_me after 98.
-}
-
-TEST(BitmapTest, SimpleFindBits) {
- disk_cache::Bitmap bitmap(64, true);
- bitmap.SetMapElement(0, 0x7ff10060);
-
- // Bit at index off.
- int index = 0;
- EXPECT_EQ(5, bitmap.FindBits(&index, 63, false));
- EXPECT_EQ(0, index);
-
- EXPECT_EQ(2, bitmap.FindBits(&index, 63, true));
- EXPECT_EQ(5, index);
-
- index = 0;
- EXPECT_EQ(2, bitmap.FindBits(&index, 63, true));
- EXPECT_EQ(5, index);
-
- index = 6;
- EXPECT_EQ(9, bitmap.FindBits(&index, 63, false));
- EXPECT_EQ(7, index);
-
- // Bit at index on.
- index = 16;
- EXPECT_EQ(1, bitmap.FindBits(&index, 63, true));
- EXPECT_EQ(16, index);
-
- index = 17;
- EXPECT_EQ(11, bitmap.FindBits(&index, 63, true));
- EXPECT_EQ(20, index);
-
- index = 31;
- EXPECT_EQ(0, bitmap.FindBits(&index, 63, true));
- EXPECT_EQ(31, index);
-
- // With a limit.
- index = 8;
- EXPECT_EQ(0, bitmap.FindBits(&index, 16, true));
-}
-
-TEST(BitmapTest, MultiWordFindBits) {
- disk_cache::Bitmap bitmap(500, true);
- bitmap.SetMapElement(10, 0xff00);
-
- int index = 0;
- EXPECT_EQ(0, bitmap.FindBits(&index, 300, true));
-
- EXPECT_EQ(8, bitmap.FindBits(&index, 500, true));
- EXPECT_EQ(328, index);
-
- bitmap.SetMapElement(10, 0xff000000);
- bitmap.SetMapElement(11, 0xff);
-
- index = 0;
- EXPECT_EQ(16, bitmap.FindBits(&index, 500, true));
- EXPECT_EQ(344, index);
-
- index = 0;
- EXPECT_EQ(4, bitmap.FindBits(&index, 348, true));
- EXPECT_EQ(344, index);
-}
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