transmission/tests/libtransmission/utils-test.cc

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// This file Copyright (C) 2013-2022 Mnemosyne LLC.
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// It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
// or any future license endorsed by Mnemosyne LLC.
// License text can be found in the licenses/ folder.
#include <algorithm>
#include <array>
#include <cmath> // sqrt()
#include <cstdlib> // setenv(), unsetenv()
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#include <cstring>
#include <iostream>
#include <sstream>
#include <string>
#include <string_view>
#include <utility>
#ifdef _WIN32
#include <windows.h>
#define setenv(key, value, unused) SetEnvironmentVariableA(key, value)
#define unsetenv(key) SetEnvironmentVariableA(key, nullptr)
#endif
#include "transmission.h"
#include "crypto-utils.h" // tr_rand_int_weak()
#include "platform.h"
#include "tr-strbuf.h"
#include "utils.h"
#include "test-fixtures.h"
using UtilsTest = ::testing::Test;
using namespace std::literals;
TEST_F(UtilsTest, trStrvContains)
{
EXPECT_FALSE(tr_strvContains("a test is this"sv, "TEST"sv));
EXPECT_FALSE(tr_strvContains("test"sv, "testt"sv));
EXPECT_FALSE(tr_strvContains("test"sv, "this is a test"sv));
EXPECT_TRUE(tr_strvContains(" test "sv, "tes"sv));
EXPECT_TRUE(tr_strvContains(" test"sv, "test"sv));
EXPECT_TRUE(tr_strvContains("a test is this"sv, "test"sv));
EXPECT_TRUE(tr_strvContains("test "sv, "test"sv));
EXPECT_TRUE(tr_strvContains("test"sv, ""sv));
EXPECT_TRUE(tr_strvContains("test"sv, "t"sv));
EXPECT_TRUE(tr_strvContains("test"sv, "te"sv));
EXPECT_TRUE(tr_strvContains("test"sv, "test"sv));
EXPECT_TRUE(tr_strvContains("this is a test"sv, "test"sv));
EXPECT_TRUE(tr_strvContains(""sv, ""sv));
}
TEST_F(UtilsTest, trStrvStartsWith)
{
EXPECT_FALSE(tr_strvStartsWith(""sv, "this is a string"sv));
EXPECT_FALSE(tr_strvStartsWith("this is a strin"sv, "this is a string"sv));
EXPECT_FALSE(tr_strvStartsWith("this is a strin"sv, "this is a string"sv));
EXPECT_FALSE(tr_strvStartsWith("this is a string"sv, " his is a string"sv));
EXPECT_FALSE(tr_strvStartsWith("this is a string"sv, "his is a string"sv));
EXPECT_FALSE(tr_strvStartsWith("this is a string"sv, "string"sv));
EXPECT_TRUE(tr_strvStartsWith(""sv, ""sv));
EXPECT_TRUE(tr_strvStartsWith("this is a string"sv, ""sv));
EXPECT_TRUE(tr_strvStartsWith("this is a string"sv, "this "sv));
EXPECT_TRUE(tr_strvStartsWith("this is a string"sv, "this is"sv));
EXPECT_TRUE(tr_strvStartsWith("this is a string"sv, "this"sv));
}
TEST_F(UtilsTest, trStrvEndsWith)
{
EXPECT_FALSE(tr_strvEndsWith(""sv, "string"sv));
EXPECT_FALSE(tr_strvEndsWith("this is a string"sv, "alphabet"sv));
EXPECT_FALSE(tr_strvEndsWith("this is a string"sv, "strin"sv));
EXPECT_FALSE(tr_strvEndsWith("this is a string"sv, "this is"sv));
EXPECT_FALSE(tr_strvEndsWith("this is a string"sv, "this"sv));
EXPECT_FALSE(tr_strvEndsWith("tring"sv, "string"sv));
EXPECT_TRUE(tr_strvEndsWith(""sv, ""sv));
EXPECT_TRUE(tr_strvEndsWith("this is a string"sv, " string"sv));
EXPECT_TRUE(tr_strvEndsWith("this is a string"sv, ""sv));
EXPECT_TRUE(tr_strvEndsWith("this is a string"sv, "a string"sv));
EXPECT_TRUE(tr_strvEndsWith("this is a string"sv, "g"sv));
EXPECT_TRUE(tr_strvEndsWith("this is a string"sv, "string"sv));
}
TEST_F(UtilsTest, trStrvSep)
{
auto constexpr Delim = ',';
auto sv = "token1,token2,token3"sv;
EXPECT_EQ("token1"sv, tr_strvSep(&sv, Delim));
EXPECT_EQ("token2"sv, tr_strvSep(&sv, Delim));
EXPECT_EQ("token3"sv, tr_strvSep(&sv, Delim));
EXPECT_EQ(""sv, tr_strvSep(&sv, Delim));
sv = " token1,token2"sv;
EXPECT_EQ(" token1"sv, tr_strvSep(&sv, Delim));
EXPECT_EQ("token2"sv, tr_strvSep(&sv, Delim));
sv = "token1;token2"sv;
EXPECT_EQ("token1;token2"sv, tr_strvSep(&sv, Delim));
EXPECT_EQ(""sv, tr_strvSep(&sv, Delim));
sv = ""sv;
EXPECT_EQ(""sv, tr_strvSep(&sv, Delim));
}
TEST_F(UtilsTest, trStrvStrip)
{
EXPECT_EQ(""sv, tr_strvStrip(" "sv));
EXPECT_EQ("test test"sv, tr_strvStrip(" test test "sv));
EXPECT_EQ("test"sv, tr_strvStrip(" test "sv));
EXPECT_EQ("test"sv, tr_strvStrip(" test "sv));
EXPECT_EQ("test"sv, tr_strvStrip(" test "sv));
EXPECT_EQ("test"sv, tr_strvStrip(" test "sv));
EXPECT_EQ("test"sv, tr_strvStrip("test"sv));
}
TEST_F(UtilsTest, trStrvUtf8Clean)
{
auto in = "hello world"sv;
auto out = tr_strvUtf8Clean(in);
EXPECT_EQ(in, out);
in = "hello world"sv;
out = tr_strvUtf8Clean(in.substr(0, 5));
EXPECT_EQ("hello"sv, out);
// this version is not utf-8 (but cp866)
in = "\x92\xE0\xE3\xA4\xAD\xAE \xA1\xEB\xE2\xEC \x81\xAE\xA3\xAE\xAC"sv;
out = tr_strvUtf8Clean(in);
EXPECT_TRUE(std::size(out) == 17 || std::size(out) == 33);
EXPECT_EQ(out, tr_strvUtf8Clean(out));
// same string, but utf-8 clean
in = "Трудно быть Богом"sv;
out = tr_strvUtf8Clean(in);
EXPECT_NE(0U, std::size(out));
EXPECT_EQ(out, tr_strvUtf8Clean(out));
EXPECT_EQ(in, out);
// https://trac.transmissionbt.com/ticket/6064
// This was a fuzzer-generated string that crashed Transmission.
// Even invalid strings shouldn't cause a crash.
in = "\xF4\x00\x81\x82"sv;
out = tr_strvUtf8Clean(in);
EXPECT_NE(0U, std::size(out));
EXPECT_EQ(out, tr_strvUtf8Clean(out));
in = "\xF4\x33\x81\x82"sv;
out = tr_strvUtf8Clean(in);
EXPECT_NE(nullptr, out.data());
EXPECT_TRUE(out.size() == 4 || out.size() == 7);
EXPECT_EQ(out, tr_strvUtf8Clean(out));
}
TEST_F(UtilsTest, trStrvUtf8CleanFuzz)
{
auto buf = std::vector<char>{};
for (size_t i = 0; i < 1000; ++i)
{
buf.resize(tr_rand_int(4096));
tr_rand_buffer(std::data(buf), std::size(buf));
auto const out = tr_strvUtf8Clean({ std::data(buf), std::size(buf) });
EXPECT_EQ(out, tr_strvUtf8Clean(out));
}
}
TEST_F(UtilsTest, trParseNumberRange)
{
auto const tostring = [](std::vector<int> const& v)
{
std::stringstream ss;
for (auto const& i : v)
{
ss << i << ' ';
}
return ss.str();
};
auto numbers = tr_parseNumberRange("1-10,13,16-19"sv);
EXPECT_EQ(std::string("1 2 3 4 5 6 7 8 9 10 13 16 17 18 19 "), tostring(numbers));
numbers = tr_parseNumberRange("1-5,3-7,2-6"sv);
EXPECT_EQ(std::string("1 2 3 4 5 6 7 "), tostring(numbers));
numbers = tr_parseNumberRange("1-Hello"sv);
auto const empty_string = std::string{};
EXPECT_EQ(empty_string, tostring(numbers));
numbers = tr_parseNumberRange("1-"sv);
EXPECT_EQ(empty_string, tostring(numbers));
numbers = tr_parseNumberRange("Hello"sv);
EXPECT_EQ(empty_string, tostring(numbers));
}
TEST_F(UtilsTest, trStrlower)
{
EXPECT_EQ(""sv, tr_strlower(""sv));
EXPECT_EQ("apple"sv, tr_strlower("APPLE"sv));
EXPECT_EQ("apple"sv, tr_strlower("Apple"sv));
EXPECT_EQ("apple"sv, tr_strlower("aPPLe"sv));
EXPECT_EQ("apple"sv, tr_strlower("applE"sv));
EXPECT_EQ("hello"sv, tr_strlower("HELLO"sv));
EXPECT_EQ("hello"sv, tr_strlower("hello"sv));
}
TEST_F(UtilsTest, truncd)
{
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EXPECT_EQ("100.00%"sv, fmt::format("{:.2f}%", 99.999));
EXPECT_EQ("99.99%"sv, fmt::format("{:.2f}%", tr_truncd(99.999, 2)));
EXPECT_EQ("403650.6562"sv, fmt::format("{:.4f}", tr_truncd(403650.656250, 4)));
EXPECT_EQ("2.15"sv, fmt::format("{:.2f}", tr_truncd(2.15, 2)));
EXPECT_EQ("2.05"sv, fmt::format("{:.2f}", tr_truncd(2.05, 2)));
EXPECT_EQ("3.33"sv, fmt::format("{:.2f}", tr_truncd(3.333333, 2)));
EXPECT_EQ("3"sv, fmt::format("{:.0f}", tr_truncd(3.333333, 0)));
EXPECT_EQ("3"sv, fmt::format("{:.0f}", tr_truncd(3.9999, 0)));
#if !(defined(_MSC_VER) || (defined(__MINGW32__) && defined(__MSVCRT__)))
/* FIXME: MSCVRT behaves differently in case of nan */
auto const nan = sqrt(-1.0);
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auto const nanstr = fmt::format("{:.2f}", tr_truncd(nan, 2));
EXPECT_TRUE(strstr(nanstr.c_str(), "nan") != nullptr || strstr(nanstr.c_str(), "NaN") != nullptr);
#endif
}
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TEST_F(UtilsTest, trStrlcpy)
{
// destination will be initialized with this char
char const initial_char = '1';
std::array<char, 100> destination = { initial_char };
std::vector<std::string> const tests{
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"a",
"",
"12345678901234567890",
"This, very usefull string contains total of 104 characters not counting null. Almost like an easter egg!"
};
for (auto const& test : tests)
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{
auto c_string = test.c_str();
auto length = strlen(c_string);
destination.fill(initial_char);
auto response = tr_strlcpy(&destination, c_string, 98);
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// Check response length
ASSERT_EQ(response, length);
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// Check what was copied
fix: sonarcloud (#2865) * refactor: implement FileTreeItem::children_ with a std::vector * fix: std::move should not be called on forwarding reference * fix: uninitialized scalar variable * fix: unchecked return value from library * fix: dereference before null check * fix: unchecked return value from library * fix: unchecked return value from library * fixup! refactor: implement FileTreeItem::children_ with a std::vector * fix: signed-unsigned comparison in libtransmission tests * fix: avoid unnecessary copy by using const reference * fix: function should be declared const * refactor: use fmt::format to build log timestamps * fix: use init-statement to reduce variable scope * fixup! refactor: use fmt::format to build log timestamps * fix: remove tau_tracker destructor for rule-of-zero * fix: remove tr_peerIo destructor for rule-of-zero * Revert "fix: dereference before null check" This reverts commit cd789678156bb987a8dc6b2eb49cb1db4195d441. * fix: signed-unsigned comparison in libtransmission tests * fix: use init-statement to reduce variable scope * fix: extract nested code block into separate method * fix: extract nested code block into separate method * fix: extract nested code block into separate method * fix: use init-statement to reduce variable scope * fix: extract nested code block into separate method * fix: signed-unsigned comparison in libtransmission tests * fixup! fix: extract nested code block into separate method * fix: mark possibly-unused as [[maybe_unused]] * fix: invalid stack memory reference in tr_found_file_t * fix: signed-unsigned comparison in libtransmission tests
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for (unsigned i = 0U; i < 97U; ++i)
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{
if (i <= length)
{
ASSERT_EQ(destination[i], c_string[i]);
}
else
{
ASSERT_EQ(destination[i], initial_char);
}
}
// tr_strlcpy should only write this far if (length >= 98)
if (length >= 98)
{
ASSERT_EQ(destination[97], '\0');
}
else
{
ASSERT_EQ(destination[97], initial_char);
}
// tr_strlcpy should not write this far
ASSERT_EQ(destination[98], initial_char);
ASSERT_EQ(destination[99], initial_char);
}
}
TEST_F(UtilsTest, env)
{
char const* test_key = "TR_TEST_ENV";
unsetenv(test_key);
EXPECT_FALSE(tr_env_key_exists(test_key));
EXPECT_EQ(123, tr_env_get_int(test_key, 123));
EXPECT_EQ(""sv, tr_env_get_string(test_key));
EXPECT_EQ("a"sv, tr_env_get_string(test_key, "a"sv));
setenv(test_key, "", 1);
EXPECT_TRUE(tr_env_key_exists(test_key));
EXPECT_EQ(456, tr_env_get_int(test_key, 456));
EXPECT_EQ("", tr_env_get_string(test_key, ""));
EXPECT_EQ("", tr_env_get_string(test_key, "b"));
setenv(test_key, "135", 1);
EXPECT_TRUE(tr_env_key_exists(test_key));
EXPECT_EQ(135, tr_env_get_int(test_key, 789));
EXPECT_EQ("135", tr_env_get_string(test_key, ""));
EXPECT_EQ("135", tr_env_get_string(test_key, "c"));
}
TEST_F(UtilsTest, mimeTypes)
{
EXPECT_EQ("audio/x-flac"sv, tr_get_mime_type_for_filename("music.flac"sv));
EXPECT_EQ("audio/x-flac"sv, tr_get_mime_type_for_filename("music.FLAC"sv));
EXPECT_EQ("video/x-msvideo"sv, tr_get_mime_type_for_filename(".avi"sv));
EXPECT_EQ("video/x-msvideo"sv, tr_get_mime_type_for_filename("/path/to/FILENAME.AVI"sv));
EXPECT_EQ("application/octet-stream"sv, tr_get_mime_type_for_filename("music.ajoijfeisfe"sv));
}
TEST_F(UtilsTest, saveFile)
{
auto filename = tr_pathbuf{};
// save a file to GoogleTest's temp dir
filename.assign(::testing::TempDir(), "filename.txt"sv);
auto contents = "these are the contents"sv;
tr_error* error = nullptr;
EXPECT_TRUE(tr_saveFile(filename.sv(), contents, &error));
EXPECT_EQ(nullptr, error) << *error;
// now read the file back in and confirm the contents are the same
auto buf = std::vector<char>{};
EXPECT_TRUE(tr_loadFile(filename.sv(), buf, &error));
EXPECT_EQ(nullptr, error) << *error;
auto sv = std::string_view{ std::data(buf), std::size(buf) };
EXPECT_EQ(contents, sv);
// remove the tempfile
EXPECT_TRUE(tr_sys_path_remove(filename, &error));
EXPECT_EQ(nullptr, error) << *error;
// try saving a file to a path that doesn't exist
filename = "/this/path/does/not/exist/foo.txt";
EXPECT_FALSE(tr_saveFile(filename.sv(), contents, &error));
ASSERT_NE(nullptr, error);
EXPECT_NE(0, error->code);
tr_error_clear(&error);
}
TEST_F(UtilsTest, ratioToString)
{
// Testpairs contain ratio as a double and a string
static auto constexpr Tests = std::array<std::pair<double, std::string_view>, 16>{ { { 0.0, "0.00" },
{ 0.01, "0.01" },
{ 0.1, "0.10" },
{ 1.0, "1.00" },
{ 1.015, "1.01" },
{ 4.99, "4.99" },
{ 4.996, "4.99" },
{ 5.0, "5.0" },
{ 5.09999, "5.0" },
{ 5.1, "5.1" },
{ 99.99, "99.9" },
{ 100.0, "100" },
{ 4000.4, "4000" },
{ 600000.0, "600000" },
{ 900000000.0, "900000000" },
{ TR_RATIO_INF, "inf" } } };
char const nullchar = '\0';
ASSERT_EQ(tr_strratio(TR_RATIO_NA, "Ratio is NaN"), "None");
ASSERT_EQ(tr_strratio(TR_RATIO_INF, "A bit longer text for infinity"), "A bit longer text for infinity");
// Inf contains only null character
ASSERT_EQ(tr_strratio(TR_RATIO_INF, &nullchar), "");
for (auto const& [input, expected] : Tests)
{
ASSERT_EQ(tr_strratio(input, "inf"), expected);
}
}