blob: d65dd8831ed6af4e420d97ecab8e43455e263e51 [file] [log] [blame]
// Copyright 2022 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 "quiche/common/quiche_data_reader.h"
#include <cstdint>
#include "quiche/common/platform/api/quiche_test.h"
#include "quiche/common/quiche_endian.h"
namespace quiche {
// TODO(b/214573190): Test Endianness::HOST_BYTE_ORDER.
// TODO(b/214573190): Test ReadUInt8, ReadUInt24, ReadUInt64, ReadBytesToUInt64,
// ReadStringPiece8, ReadStringPiece, ReadTag, etc.
TEST(QuicheDataReaderTest, ReadUInt16) {
// Data in network byte order.
const uint16_t kData[] = {
QuicheEndian::HostToNet16(1),
QuicheEndian::HostToNet16(1 << 15),
};
QuicheDataReader reader(reinterpret_cast<const char*>(kData), sizeof(kData));
EXPECT_FALSE(reader.IsDoneReading());
uint16_t uint16_val;
EXPECT_TRUE(reader.ReadUInt16(&uint16_val));
EXPECT_FALSE(reader.IsDoneReading());
EXPECT_EQ(1, uint16_val);
EXPECT_TRUE(reader.ReadUInt16(&uint16_val));
EXPECT_TRUE(reader.IsDoneReading());
EXPECT_EQ(1 << 15, uint16_val);
}
TEST(QuicheDataReaderTest, ReadUInt32) {
// Data in network byte order.
const uint32_t kData[] = {
QuicheEndian::HostToNet32(1),
QuicheEndian::HostToNet32(0x80000000),
};
QuicheDataReader reader(reinterpret_cast<const char*>(kData),
ABSL_ARRAYSIZE(kData) * sizeof(uint32_t));
EXPECT_FALSE(reader.IsDoneReading());
uint32_t uint32_val;
EXPECT_TRUE(reader.ReadUInt32(&uint32_val));
EXPECT_FALSE(reader.IsDoneReading());
EXPECT_EQ(1u, uint32_val);
EXPECT_TRUE(reader.ReadUInt32(&uint32_val));
EXPECT_TRUE(reader.IsDoneReading());
EXPECT_EQ(1u << 31, uint32_val);
}
TEST(QuicheDataReaderTest, ReadStringPiece16) {
// Data in network byte order.
const char kData[] = {
0x00, 0x02, // uint16_t(2)
0x48, 0x69, // "Hi"
0x00, 0x10, // uint16_t(16)
0x54, 0x65, 0x73, 0x74, 0x69, 0x6e, 0x67, 0x2c,
0x20, 0x31, 0x2c, 0x20, 0x32, 0x2c, 0x20, 0x33, // "Testing, 1, 2, 3"
};
QuicheDataReader reader(kData, ABSL_ARRAYSIZE(kData));
EXPECT_FALSE(reader.IsDoneReading());
absl::string_view stringpiece_val;
EXPECT_TRUE(reader.ReadStringPiece16(&stringpiece_val));
EXPECT_FALSE(reader.IsDoneReading());
EXPECT_EQ(0, stringpiece_val.compare("Hi"));
EXPECT_TRUE(reader.ReadStringPiece16(&stringpiece_val));
EXPECT_TRUE(reader.IsDoneReading());
EXPECT_EQ(0, stringpiece_val.compare("Testing, 1, 2, 3"));
}
TEST(QuicheDataReaderTest, ReadUInt16WithBufferTooSmall) {
// Data in network byte order.
const char kData[] = {
0x00, // part of a uint16_t
};
QuicheDataReader reader(kData, ABSL_ARRAYSIZE(kData));
EXPECT_FALSE(reader.IsDoneReading());
uint16_t uint16_val;
EXPECT_FALSE(reader.ReadUInt16(&uint16_val));
}
TEST(QuicheDataReaderTest, ReadUInt32WithBufferTooSmall) {
// Data in network byte order.
const char kData[] = {
0x00, 0x00, 0x00, // part of a uint32_t
};
QuicheDataReader reader(kData, ABSL_ARRAYSIZE(kData));
EXPECT_FALSE(reader.IsDoneReading());
uint32_t uint32_val;
EXPECT_FALSE(reader.ReadUInt32(&uint32_val));
// Also make sure that trying to read a uint16_t, which technically could
// work, fails immediately due to previously encountered failed read.
uint16_t uint16_val;
EXPECT_FALSE(reader.ReadUInt16(&uint16_val));
}
// Tests ReadStringPiece16() with a buffer too small to fit the entire string.
TEST(QuicheDataReaderTest, ReadStringPiece16WithBufferTooSmall) {
// Data in network byte order.
const char kData[] = {
0x00, 0x03, // uint16_t(3)
0x48, 0x69, // "Hi"
};
QuicheDataReader reader(kData, ABSL_ARRAYSIZE(kData));
EXPECT_FALSE(reader.IsDoneReading());
absl::string_view stringpiece_val;
EXPECT_FALSE(reader.ReadStringPiece16(&stringpiece_val));
// Also make sure that trying to read a uint16_t, which technically could
// work, fails immediately due to previously encountered failed read.
uint16_t uint16_val;
EXPECT_FALSE(reader.ReadUInt16(&uint16_val));
}
// Tests ReadStringPiece16() with a buffer too small even to fit the length.
TEST(QuicheDataReaderTest, ReadStringPiece16WithBufferWayTooSmall) {
// Data in network byte order.
const char kData[] = {
0x00, // part of a uint16_t
};
QuicheDataReader reader(kData, ABSL_ARRAYSIZE(kData));
EXPECT_FALSE(reader.IsDoneReading());
absl::string_view stringpiece_val;
EXPECT_FALSE(reader.ReadStringPiece16(&stringpiece_val));
// Also make sure that trying to read a uint16_t, which technically could
// work, fails immediately due to previously encountered failed read.
uint16_t uint16_val;
EXPECT_FALSE(reader.ReadUInt16(&uint16_val));
}
TEST(QuicheDataReaderTest, ReadBytes) {
// Data in network byte order.
const char kData[] = {
0x66, 0x6f, 0x6f, // "foo"
0x48, 0x69, // "Hi"
};
QuicheDataReader reader(kData, ABSL_ARRAYSIZE(kData));
EXPECT_FALSE(reader.IsDoneReading());
char dest1[3] = {};
EXPECT_TRUE(reader.ReadBytes(&dest1, ABSL_ARRAYSIZE(dest1)));
EXPECT_FALSE(reader.IsDoneReading());
EXPECT_EQ("foo", absl::string_view(dest1, ABSL_ARRAYSIZE(dest1)));
char dest2[2] = {};
EXPECT_TRUE(reader.ReadBytes(&dest2, ABSL_ARRAYSIZE(dest2)));
EXPECT_TRUE(reader.IsDoneReading());
EXPECT_EQ("Hi", absl::string_view(dest2, ABSL_ARRAYSIZE(dest2)));
}
TEST(QuicheDataReaderTest, ReadBytesWithBufferTooSmall) {
// Data in network byte order.
const char kData[] = {
0x01,
};
QuicheDataReader reader(kData, ABSL_ARRAYSIZE(kData));
EXPECT_FALSE(reader.IsDoneReading());
char dest[ABSL_ARRAYSIZE(kData) + 2] = {};
EXPECT_FALSE(reader.ReadBytes(&dest, ABSL_ARRAYSIZE(kData) + 1));
EXPECT_STREQ("", dest);
}
} // namespace quiche