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/*************************************************************************
** StreamReaderTest.cpp **
** **
** This file is part of dvisvgm -- a fast DVI to SVG converter **
** Copyright (C) 2005-2025 Martin Gieseking <martin.gieseking@uos.de> **
** **
** This program is free software; you can redistribute it and/or **
** modify it under the terms of the GNU General Public License as **
** published by the Free Software Foundation; either version 3 of **
** the License, or (at your option) any later version. **
** **
** This program is distributed in the hope that it will be useful, but **
** WITHOUT ANY WARRANTY; without even the implied warranty of **
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the **
** GNU General Public License for more details. **
** **
** You should have received a copy of the GNU General Public License **
** along with this program; if not, see <http://www.gnu.org/licenses/>. **
*************************************************************************/
#include <gtest/gtest.h>
#include <fstream>
#include <sstream>
#include <string>
#include "StreamReader.hpp"
#include "XXHashFunction.hpp"
using namespace std;
TEST(StreamReaderTest, readString) {
string str1 = "dvisvgm converts DVI files to SVG.";
istringstream iss(str1);
ASSERT_TRUE(bool(iss));
StreamReader reader(iss);
string str2 = reader.readString(iss.str().length());
EXPECT_EQ(str1, str2);
iss.clear();
iss.str(str1);
str2 = reader.readString();
EXPECT_EQ(str1, str2);
}
TEST(StreamReaderTest, readString_hashed) {
string str1 = "dvisvgm converts DVI files to SVG.";
istringstream iss(str1);
ASSERT_TRUE(bool(iss));
StreamReader reader(iss);
XXH32HashFunction hashfunc;
string str2 = reader.readString(iss.str().length(), hashfunc);
EXPECT_EQ(str1, str2);
EXPECT_EQ(hashfunc.digestString(), "190cc9d2");
iss.clear();
iss.str(str1);
hashfunc.reset();
str2 = reader.readString(hashfunc, false);
EXPECT_EQ(hashfunc.digestString(), "190cc9d2");
}
TEST(StreamReaderTest, readUnsigned) {
string str = "\x01\x02\x03\x04";
istringstream iss(str);
StreamReader reader(iss);
uint32_t val = reader.readUnsigned(4);
EXPECT_EQ(val, 0x01020304u);
}
TEST(StreamReaderTest, readUnsigned_hashed) {
string str = "\x01\x02\x03\x04";
istringstream iss(str);
StreamReader reader(iss);
XXH32HashFunction hashfunc;
uint32_t val = reader.readUnsigned(4, hashfunc);
EXPECT_EQ(val, 0x01020304u);
EXPECT_EQ(hashfunc.digestString(), "fe96d19c");
}
TEST(StreamReaderTest, readSigned) {
string str = "\xff\xee\xdd\xcc";
istringstream iss(str);
StreamReader reader(iss);
int32_t val = reader.readSigned(4);
EXPECT_EQ(val, int32_t(0xffeeddcc));
}
TEST(StreamReaderTest, readSigned_hashed) {
string str = "\xff\xee\xdd\xcc";
istringstream iss(str);
StreamReader reader(iss);
XXH32HashFunction hashfunc;
int32_t val = reader.readSigned(4, hashfunc);
EXPECT_EQ(val, int32_t(0xffeeddcc));
EXPECT_EQ(hashfunc.digestString(), "8baa29bd");
}
TEST(StreamReaderTest, readBytes) {
string str = "\xff\xee\xdd\xcc";
istringstream iss(str);
StreamReader reader(iss);
vector<uint8_t> bytes = reader.readBytes(3);
EXPECT_EQ(bytes.size(), 3u);
EXPECT_EQ(bytes[0], 0xff);
EXPECT_EQ(bytes[1], 0xee);
EXPECT_EQ(bytes[2], 0xdd);
}
TEST(StreamReaderTest, readBytes_hashed) {
string str = "\xff\xee\xdd\xcc";
istringstream iss(str);
StreamReader reader(iss);
XXH32HashFunction hashfunc;
vector<uint8_t> bytes = reader.readBytes(3, hashfunc);
EXPECT_EQ(bytes.size(), 3u);
EXPECT_EQ(bytes[0], 0xff);
EXPECT_EQ(bytes[1], 0xee);
EXPECT_EQ(bytes[2], 0xdd);
EXPECT_EQ(hashfunc.digestString(), "5eda43a0");
int byte = reader.readByte(hashfunc);
EXPECT_EQ(byte, 0xcc);
EXPECT_EQ(hashfunc.digestString(), "8baa29bd");
}
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