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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/zucchini/image_index.h"
#include <stddef.h>
#include <numeric>
#include <vector>
#include "base/test/gtest_util.h"
#include "components/zucchini/image_utils.h"
#include "components/zucchini/test_disassembler.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace zucchini {
class ImageIndexTest : public testing::Test {
protected:
ImageIndexTest()
: buffer_(20),
image_index_(ConstBufferView(buffer_.data(), buffer_.size())) {
std::iota(buffer_.begin(), buffer_.end(), 0);
}
void InitializeWithDefaultTestData() {
TestDisassembler disasm({2, TypeTag(0), PoolTag(0)},
{{1, 0}, {8, 1}, {10, 2}},
{4, TypeTag(1), PoolTag(0)}, {{3, 3}},
{3, TypeTag(2), PoolTag(1)}, {{12, 4}, {17, 5}});
EXPECT_TRUE(image_index_.Initialize(&disasm));
}
std::vector<uint8_t> buffer_;
ImageIndex image_index_;
};
TEST_F(ImageIndexTest, TypeAndPool) {
TestDisassembler disasm({2, TypeTag(0), PoolTag(0)}, {},
{4, TypeTag(1), PoolTag(0)}, {},
{3, TypeTag(2), PoolTag(1)}, {});
EXPECT_TRUE(image_index_.Initialize(&disasm));
EXPECT_EQ(3U, image_index_.TypeCount());
EXPECT_EQ(2U, image_index_.PoolCount());
EXPECT_EQ(TypeTag(0), image_index_.refs(TypeTag(0)).type_tag());
EXPECT_EQ(TypeTag(1), image_index_.refs(TypeTag(1)).type_tag());
EXPECT_EQ(TypeTag(2), image_index_.refs(TypeTag(2)).type_tag());
EXPECT_EQ(PoolTag(0), image_index_.refs(TypeTag(0)).pool_tag());
EXPECT_EQ(PoolTag(0), image_index_.refs(TypeTag(1)).pool_tag());
EXPECT_EQ(PoolTag(1), image_index_.refs(TypeTag(2)).pool_tag());
}
TEST_F(ImageIndexTest, InvalidInitialize1) {
// Overlap within the same group.
TestDisassembler disasm({2, TypeTag(0), PoolTag(0)}, {{1, 0}, {2, 0}},
{4, TypeTag(1), PoolTag(0)}, {},
{3, TypeTag(2), PoolTag(1)}, {});
EXPECT_FALSE(image_index_.Initialize(&disasm));
}
TEST_F(ImageIndexTest, InvalidInitialize2) {
// Overlap across different readers.
TestDisassembler disasm({2, TypeTag(0), PoolTag(0)},
{{1, 0}, {8, 1}, {10, 2}},
{4, TypeTag(1), PoolTag(0)}, {{3, 3}},
{3, TypeTag(2), PoolTag(1)}, {{11, 0}});
EXPECT_FALSE(image_index_.Initialize(&disasm));
}
TEST_F(ImageIndexTest, LookupType) {
InitializeWithDefaultTestData();
std::vector<int> expected = {
-1, // raw
0, 0, // ref 0
1, 1, 1, 1, // ref 1
-1, // raw
0, 0, // ref 0
0, 0, // ref 0
2, 2, 2, // ref 2
-1, -1, // raw
2, 2, 2, // ref 2
};
for (offset_t i = 0; i < image_index_.size(); ++i)
EXPECT_EQ(TypeTag(expected[i]), image_index_.LookupType(i));
}
TEST_F(ImageIndexTest, IsToken) {
InitializeWithDefaultTestData();
std::vector<bool> expected = {
true, // raw
true, false, // ref 0
true, false, false, false, // ref 1
true, // raw
true, false, // ref 0
true, false, // ref 0
true, false, false, // ref 2
true, true, // raw
true, false, false, // ref 2
};
for (offset_t i = 0; i < image_index_.size(); ++i)
EXPECT_EQ(expected[i], image_index_.IsToken(i));
}
TEST_F(ImageIndexTest, IsReference) {
InitializeWithDefaultTestData();
std::vector<bool> expected = {
false, // raw
true, true, // ref 0
true, true, true, true, // ref 1
false, // raw
true, true, // ref 0
true, true, // ref 0
true, true, true, // ref 2
false, false, // raw
true, true, true, // ref 2
};
for (offset_t i = 0; i < image_index_.size(); ++i)
EXPECT_EQ(expected[i], image_index_.IsReference(i));
}
} // namespace zucchini
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