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-rw-r--r--test/read_test.cpp228
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diff --git a/test/read_test.cpp b/test/read_test.cpp
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-/*
- * libnbt++ - A library for the Minecraft Named Binary Tag format.
- * Copyright (C) 2013, 2015 ljfa-ag
- *
- * This file is part of libnbt++.
- *
- * libnbt++ is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * libnbt++ 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 Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
- */
-#include "microtest.h"
-#include "io/stream_reader.h"
-#include "nbt_tags.h"
-#include <iostream>
-#include <fstream>
-#include <sstream>
-
-using namespace nbt;
-
-void test_stream_reader_big()
-{
- std::string input{
- 1, //tag_type::Byte
- 0, //tag_type::End
- 11, //tag_type::Int_Array
-
- 0x0a, 0x0b, 0x0c, 0x0d, //0x0a0b0c0d in Big Endian
-
- 0x00, 0x06, //String length in Big Endian
- 'f', 'o', 'o', 'b', 'a', 'r',
-
- 0 //tag_type::End (invalid with allow_end = false)
- };
- std::istringstream is(input);
- nbt::io::stream_reader reader(is);
-
- ASSERT(&reader.get_istr() == &is);
- ASSERT(reader.get_endian() == endian::big);
-
- ASSERT(reader.read_type() == tag_type::Byte);
- ASSERT(reader.read_type(true) == tag_type::End);
- ASSERT(reader.read_type(false) == tag_type::Int_Array);
-
- int32_t i;
- reader.read_num(i);
- ASSERT(i == 0x0a0b0c0d);
-
- ASSERT(reader.read_string() == "foobar");
-
- EXPECT_EXCEPTION(reader.read_type(false), io::input_error);
- ASSERT(!is);
- is.clear();
-
- //Test for invalid tag type 12
- is.str("\x0c");
- EXPECT_EXCEPTION(reader.read_type(), io::input_error);
- ASSERT(!is);
- is.clear();
-
- //Test for unexpcted EOF on numbers (input too short for int32_t)
- is.str("\x03\x04");
- reader.read_num(i);
- ASSERT(!is);
- std::clog << "test_stream_reader_big passed" << std::endl;
-}
-
-void test_stream_reader_little()
-{
- std::string input{
- 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, //0x0d0c0b0a09080706 in Little Endian
-
- 0x06, 0x00, //String length in Little Endian
- 'f', 'o', 'o', 'b', 'a', 'r',
-
- 0x10, 0x00, //String length (intentionally too large)
- 'a', 'b', 'c', 'd' //unexpected EOF
- };
- std::istringstream is(input);
- nbt::io::stream_reader reader(is, endian::little);
-
- ASSERT(reader.get_endian() == endian::little);
-
- int64_t i;
- reader.read_num(i);
- ASSERT(i == 0x0d0c0b0a09080706);
-
- ASSERT(reader.read_string() == "foobar");
-
- EXPECT_EXCEPTION(reader.read_string(), io::input_error);
- ASSERT(!is);
- std::clog << "test_stream_reader_little passed" << std::endl;
-}
-
-//Tests if comp equals an extended variant of Notch's bigtest NBT
-void verify_bigtest_structure(const tag_compound& comp)
-{
- ASSERT(comp.size() == 13);
-
- ASSERT(comp.at("byteTest") == tag_byte(127));
- ASSERT(comp.at("shortTest") == tag_short(32767));
- ASSERT(comp.at("intTest") == tag_int(2147483647));
- ASSERT(comp.at("longTest") == tag_long(9223372036854775807));
- ASSERT(comp.at("floatTest") == tag_float(std::stof("0xff1832p-25"))); //0.4982315
- ASSERT(comp.at("doubleTest") == tag_double(std::stod("0x1f8f6bbbff6a5ep-54"))); //0.493128713218231
-
- //From bigtest.nbt: "the first 1000 values of (n*n*255+n*7)%100, starting with n=0 (0, 62, 34, 16, 8, ...)"
- tag_byte_array byteArrayTest;
- for(int n = 0; n < 1000; ++n)
- byteArrayTest.push_back((n*n*255 + n*7) % 100);
- ASSERT(comp.at("byteArrayTest (the first 1000 values of (n*n*255+n*7)%100, starting with n=0 (0, 62, 34, 16, 8, ...))") == byteArrayTest);
-
- ASSERT(comp.at("stringTest") == tag_string("HELLO WORLD THIS IS A TEST STRING \u00C5\u00C4\u00D6!"));
-
- ASSERT(comp.at("listTest (compound)") == tag_list::of<tag_compound>({
- {{"created-on", tag_long(1264099775885)}, {"name", "Compound tag #0"}},
- {{"created-on", tag_long(1264099775885)}, {"name", "Compound tag #1"}}
- }));
- ASSERT(comp.at("listTest (long)") == tag_list::of<tag_long>({11, 12, 13, 14, 15}));
- ASSERT(comp.at("listTest (end)") == tag_list());
-
- ASSERT((comp.at("nested compound test") == tag_compound{
- {"egg", tag_compound{{"value", 0.5f}, {"name", "Eggbert"}}},
- {"ham", tag_compound{{"value", 0.75f}, {"name", "Hampus"}}}
- }));
-
- ASSERT(comp.at("intArrayTest") == tag_int_array(
- {0x00010203, 0x04050607, 0x08090a0b, 0x0c0d0e0f}));
-}
-
-void test_read_bigtest()
-{
- //Uses an extended variant of Notch's original bigtest file
- std::ifstream file("bigtest_uncompr", std::ios::binary);
- ASSERT(file);
-
- auto pair = nbt::io::read_compound(file);
- ASSERT(pair.first == "Level");
- verify_bigtest_structure(*pair.second);
- std::clog << "test_read_bigtest passed" << std::endl;
-}
-
-void test_read_littletest()
-{
- //Same as bigtest, but little endian
- std::ifstream file("littletest_uncompr", std::ios::binary);
- ASSERT(file);
-
- auto pair = nbt::io::read_compound(file, endian::little);
- ASSERT(pair.first == "Level");
- ASSERT(pair.second->get_type() == tag_type::Compound);
- verify_bigtest_structure(*pair.second);
- std::clog << "test_read_littletest passed" << std::endl;
-}
-
-void test_read_errors()
-{
- std::ifstream file;
- nbt::io::stream_reader reader(file);
-
- //EOF within a tag_double payload
- file.open("errortest_eof1", std::ios::binary);
- ASSERT(file);
- EXPECT_EXCEPTION(reader.read_tag(), io::input_error);
- ASSERT(!file);
-
- //EOF within a key in a compound
- file.close();
- file.open("errortest_eof2", std::ios::binary);
- ASSERT(file);
- EXPECT_EXCEPTION(reader.read_tag(), io::input_error);
- ASSERT(!file);
-
- //Missing tag_end
- file.close();
- file.open("errortest_noend", std::ios::binary);
- ASSERT(file);
- EXPECT_EXCEPTION(reader.read_tag(), io::input_error);
- ASSERT(!file);
-
- //Negative list length
- file.close();
- file.open("errortest_neg_length", std::ios::binary);
- ASSERT(file);
- EXPECT_EXCEPTION(reader.read_tag(), io::input_error);
- ASSERT(!file);
- std::clog << "test_read_errors passed" << std::endl;
-}
-
-void test_read_misc()
-{
- std::ifstream file;
- nbt::io::stream_reader reader(file);
-
- //Toplevel tag other than compound
- file.open("toplevel_string", std::ios::binary);
- ASSERT(file);
- EXPECT_EXCEPTION(reader.read_compound(), io::input_error);
- ASSERT(!file);
-
- //Rewind and try again with read_tag
- file.clear();
- ASSERT(file.seekg(0));
- auto pair = reader.read_tag();
- ASSERT(pair.first == "Test (toplevel tag_string)");
- ASSERT(*pair.second == tag_string(
- "Even though unprovided for by NBT, the library should also handle "
- "the case where the file consists of something else than tag_compound"));
- std::clog << "test_read_misc passed" << std::endl;
-}
-
-int main()
-{
- test_stream_reader_big();
- test_stream_reader_little();
- test_read_bigtest();
- test_read_littletest();
- test_read_errors();
- test_read_misc();
-}
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