375 lines
14 KiB
C++
375 lines
14 KiB
C++
// 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),
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// or any future license endorsed by Mnemosyne LLC.
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// License text can be found in the licenses/ folder.
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#include <algorithm>
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#include <array>
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#include <cmath> // sqrt()
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#include <cstdlib> // setenv(), unsetenv()
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#include <cstring>
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#include <iostream>
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#include <sstream>
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#include <string>
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#include <string_view>
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#include <utility>
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#ifdef _WIN32
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#include <windows.h>
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#define setenv(key, value, unused) SetEnvironmentVariableA(key, value)
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#define unsetenv(key) SetEnvironmentVariableA(key, nullptr)
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#endif
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#include <libtransmission/transmission.h>
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#include <libtransmission/crypto-utils.h> // tr_rand_int()
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#include <libtransmission/platform.h>
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#include <libtransmission/tr-strbuf.h>
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#include <libtransmission/utils.h>
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#include "test-fixtures.h"
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using UtilsTest = ::testing::Test;
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using namespace std::literals;
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TEST_F(UtilsTest, trStrvContains)
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{
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EXPECT_FALSE(tr_strvContains("a test is this"sv, "TEST"sv));
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EXPECT_FALSE(tr_strvContains("test"sv, "testt"sv));
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EXPECT_FALSE(tr_strvContains("test"sv, "this is a test"sv));
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EXPECT_TRUE(tr_strvContains(" test "sv, "tes"sv));
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EXPECT_TRUE(tr_strvContains(" test"sv, "test"sv));
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EXPECT_TRUE(tr_strvContains("a test is this"sv, "test"sv));
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EXPECT_TRUE(tr_strvContains("test "sv, "test"sv));
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EXPECT_TRUE(tr_strvContains("test"sv, ""sv));
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EXPECT_TRUE(tr_strvContains("test"sv, "t"sv));
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EXPECT_TRUE(tr_strvContains("test"sv, "te"sv));
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EXPECT_TRUE(tr_strvContains("test"sv, "test"sv));
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EXPECT_TRUE(tr_strvContains("this is a test"sv, "test"sv));
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EXPECT_TRUE(tr_strvContains(""sv, ""sv));
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}
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TEST_F(UtilsTest, trStrvStartsWith)
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{
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EXPECT_FALSE(tr_strvStartsWith(""sv, "this is a string"sv));
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EXPECT_FALSE(tr_strvStartsWith("this is a strin"sv, "this is a string"sv));
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EXPECT_FALSE(tr_strvStartsWith("this is a strin"sv, "this is a string"sv));
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EXPECT_FALSE(tr_strvStartsWith("this is a string"sv, " his is a string"sv));
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EXPECT_FALSE(tr_strvStartsWith("this is a string"sv, "his is a string"sv));
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EXPECT_FALSE(tr_strvStartsWith("this is a string"sv, "string"sv));
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EXPECT_TRUE(tr_strvStartsWith(""sv, ""sv));
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EXPECT_TRUE(tr_strvStartsWith("this is a string"sv, ""sv));
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EXPECT_TRUE(tr_strvStartsWith("this is a string"sv, "this "sv));
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EXPECT_TRUE(tr_strvStartsWith("this is a string"sv, "this is"sv));
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EXPECT_TRUE(tr_strvStartsWith("this is a string"sv, "this"sv));
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}
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TEST_F(UtilsTest, trStrvEndsWith)
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{
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EXPECT_FALSE(tr_strvEndsWith(""sv, "string"sv));
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EXPECT_FALSE(tr_strvEndsWith("this is a string"sv, "alphabet"sv));
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EXPECT_FALSE(tr_strvEndsWith("this is a string"sv, "strin"sv));
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EXPECT_FALSE(tr_strvEndsWith("this is a string"sv, "this is"sv));
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EXPECT_FALSE(tr_strvEndsWith("this is a string"sv, "this"sv));
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EXPECT_FALSE(tr_strvEndsWith("tring"sv, "string"sv));
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EXPECT_TRUE(tr_strvEndsWith(""sv, ""sv));
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EXPECT_TRUE(tr_strvEndsWith("this is a string"sv, " string"sv));
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EXPECT_TRUE(tr_strvEndsWith("this is a string"sv, ""sv));
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EXPECT_TRUE(tr_strvEndsWith("this is a string"sv, "a string"sv));
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EXPECT_TRUE(tr_strvEndsWith("this is a string"sv, "g"sv));
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EXPECT_TRUE(tr_strvEndsWith("this is a string"sv, "string"sv));
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}
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TEST_F(UtilsTest, trStrvSep)
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{
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auto constexpr Delim = ',';
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auto sv = "token1,token2,token3"sv;
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EXPECT_EQ("token1"sv, tr_strvSep(&sv, Delim));
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EXPECT_EQ("token2"sv, tr_strvSep(&sv, Delim));
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EXPECT_EQ("token3"sv, tr_strvSep(&sv, Delim));
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EXPECT_EQ(""sv, tr_strvSep(&sv, Delim));
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sv = " token1,token2"sv;
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EXPECT_EQ(" token1"sv, tr_strvSep(&sv, Delim));
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EXPECT_EQ("token2"sv, tr_strvSep(&sv, Delim));
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sv = "token1;token2"sv;
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EXPECT_EQ("token1;token2"sv, tr_strvSep(&sv, Delim));
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EXPECT_EQ(""sv, tr_strvSep(&sv, Delim));
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sv = ""sv;
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EXPECT_EQ(""sv, tr_strvSep(&sv, Delim));
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}
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TEST_F(UtilsTest, trStrvStrip)
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{
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EXPECT_EQ(""sv, tr_strvStrip(" "sv));
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EXPECT_EQ("test test"sv, tr_strvStrip(" test test "sv));
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EXPECT_EQ("test"sv, tr_strvStrip(" test "sv));
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EXPECT_EQ("test"sv, tr_strvStrip(" test "sv));
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EXPECT_EQ("test"sv, tr_strvStrip(" test "sv));
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EXPECT_EQ("test"sv, tr_strvStrip(" test "sv));
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EXPECT_EQ("test"sv, tr_strvStrip("test"sv));
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}
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TEST_F(UtilsTest, strvReplaceInvalid)
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{
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auto in = "hello world"sv;
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auto out = tr_strv_replace_invalid(in);
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EXPECT_EQ(in, out);
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in = "hello world"sv;
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out = tr_strv_replace_invalid(in.substr(0, 5));
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EXPECT_EQ("hello"sv, out);
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// this version is not utf-8 (but cp866)
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in = "\x92\xE0\xE3\xA4\xAD\xAE \xA1\xEB\xE2\xEC \x81\xAE\xA3\xAE\xAC"sv;
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out = tr_strv_replace_invalid(in, '?');
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EXPECT_EQ(17U, std::size(out));
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EXPECT_EQ(out, tr_strv_replace_invalid(out));
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// same string, but utf-8 clean
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in = "Трудно быть Богом"sv;
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out = tr_strv_replace_invalid(in);
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EXPECT_NE(0U, std::size(out));
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EXPECT_EQ(out, tr_strv_replace_invalid(out));
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EXPECT_EQ(in, out);
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// https://trac.transmissionbt.com/ticket/6064
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// This was a fuzzer-generated string that crashed Transmission.
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// Even invalid strings shouldn't cause a crash.
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in = "\xF4\x00\x81\x82"sv;
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out = tr_strv_replace_invalid(in);
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EXPECT_NE(0U, std::size(out));
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EXPECT_EQ(out, tr_strv_replace_invalid(out));
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in = "\xF4\x33\x81\x82"sv;
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out = tr_strv_replace_invalid(in, '?');
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EXPECT_NE(nullptr, out.data());
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EXPECT_EQ(4U, std::size(out));
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EXPECT_EQ(out, tr_strv_replace_invalid(out));
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}
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TEST_F(UtilsTest, strvConvertUtf8Fuzz)
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{
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auto buf = std::vector<char>{};
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for (size_t i = 0; i < 1000; ++i)
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{
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buf.resize(tr_rand_int(4096U));
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tr_rand_buffer(std::data(buf), std::size(buf));
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auto const out = tr_strv_convert_utf8({ std::data(buf), std::size(buf) });
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EXPECT_EQ(out, tr_strv_convert_utf8(out));
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}
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}
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TEST_F(UtilsTest, trParseNumberRange)
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{
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auto const tostring = [](std::vector<int> const& v)
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{
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std::stringstream ss;
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for (auto const& i : v)
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{
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ss << i << ' ';
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}
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return ss.str();
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};
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auto numbers = tr_parseNumberRange("1-10,13,16-19"sv);
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EXPECT_EQ(std::string("1 2 3 4 5 6 7 8 9 10 13 16 17 18 19 "), tostring(numbers));
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numbers = tr_parseNumberRange("1-5,3-7,2-6"sv);
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EXPECT_EQ(std::string("1 2 3 4 5 6 7 "), tostring(numbers));
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numbers = tr_parseNumberRange("1-Hello"sv);
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auto const empty_string = std::string{};
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EXPECT_EQ(empty_string, tostring(numbers));
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numbers = tr_parseNumberRange("1-"sv);
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EXPECT_EQ(empty_string, tostring(numbers));
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numbers = tr_parseNumberRange("Hello"sv);
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EXPECT_EQ(empty_string, tostring(numbers));
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}
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TEST_F(UtilsTest, trStrlower)
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{
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EXPECT_EQ(""sv, tr_strlower(""sv));
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EXPECT_EQ("apple"sv, tr_strlower("APPLE"sv));
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EXPECT_EQ("apple"sv, tr_strlower("Apple"sv));
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EXPECT_EQ("apple"sv, tr_strlower("aPPLe"sv));
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EXPECT_EQ("apple"sv, tr_strlower("applE"sv));
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EXPECT_EQ("hello"sv, tr_strlower("HELLO"sv));
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EXPECT_EQ("hello"sv, tr_strlower("hello"sv));
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}
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TEST_F(UtilsTest, truncd)
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{
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EXPECT_EQ("100.00%"sv, fmt::format("{:.2f}%", 99.999));
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EXPECT_EQ("99.99%"sv, fmt::format("{:.2f}%", tr_truncd(99.999, 2)));
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EXPECT_EQ("403650.6562"sv, fmt::format("{:.4f}", tr_truncd(403650.656250, 4)));
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EXPECT_EQ("2.15"sv, fmt::format("{:.2f}", tr_truncd(2.15, 2)));
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EXPECT_EQ("2.05"sv, fmt::format("{:.2f}", tr_truncd(2.05, 2)));
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EXPECT_EQ("3.33"sv, fmt::format("{:.2f}", tr_truncd(3.333333, 2)));
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EXPECT_EQ("3"sv, fmt::format("{:.0f}", tr_truncd(3.333333, 0)));
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EXPECT_EQ("3"sv, fmt::format("{:.0f}", tr_truncd(3.9999, 0)));
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#if !(defined(_MSC_VER) || (defined(__MINGW32__) && defined(__MSVCRT__)))
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/* FIXME: MSCVRT behaves differently in case of nan */
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auto const nan = sqrt(-1.0);
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auto const nanstr = fmt::format("{:.2f}", tr_truncd(nan, 2));
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EXPECT_TRUE(strstr(nanstr.c_str(), "nan") != nullptr || strstr(nanstr.c_str(), "NaN") != nullptr);
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#endif
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}
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TEST_F(UtilsTest, trStrlcpy)
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{
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// destination will be initialized with this char
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char const initial_char = '1';
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std::array<char, 100> destination = { initial_char };
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std::vector<std::string> const tests{
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"a",
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"",
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"12345678901234567890",
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"This, very useful string contains a total of 105 characters not counting null. Almost like an easter egg!"
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};
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for (auto const& test : tests)
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{
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auto c_string = test.c_str();
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auto length = strlen(c_string);
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destination.fill(initial_char);
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auto response = tr_strlcpy(&destination, c_string, 98);
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// Check response length
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ASSERT_EQ(response, length);
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// Check what was copied
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for (unsigned i = 0U; i < 97U; ++i)
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{
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if (i <= length)
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{
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ASSERT_EQ(destination[i], c_string[i]);
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}
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else
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{
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ASSERT_EQ(destination[i], initial_char);
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}
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}
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// tr_strlcpy should only write this far if (length >= 98)
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if (length >= 98)
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{
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ASSERT_EQ(destination[97], '\0');
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}
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else
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{
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ASSERT_EQ(destination[97], initial_char);
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}
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// tr_strlcpy should not write this far
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ASSERT_EQ(destination[98], initial_char);
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ASSERT_EQ(destination[99], initial_char);
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}
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}
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TEST_F(UtilsTest, env)
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{
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char const* test_key = "TR_TEST_ENV";
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unsetenv(test_key);
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EXPECT_FALSE(tr_env_key_exists(test_key));
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EXPECT_EQ(123, tr_env_get_int(test_key, 123));
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EXPECT_EQ(""sv, tr_env_get_string(test_key));
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EXPECT_EQ("a"sv, tr_env_get_string(test_key, "a"sv));
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setenv(test_key, "", 1);
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EXPECT_TRUE(tr_env_key_exists(test_key));
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EXPECT_EQ(456, tr_env_get_int(test_key, 456));
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EXPECT_EQ("", tr_env_get_string(test_key, ""));
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EXPECT_EQ("", tr_env_get_string(test_key, "b"));
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setenv(test_key, "135", 1);
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EXPECT_TRUE(tr_env_key_exists(test_key));
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EXPECT_EQ(135, tr_env_get_int(test_key, 789));
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EXPECT_EQ("135", tr_env_get_string(test_key, ""));
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EXPECT_EQ("135", tr_env_get_string(test_key, "c"));
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}
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TEST_F(UtilsTest, mimeTypes)
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{
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EXPECT_EQ("audio/x-flac"sv, tr_get_mime_type_for_filename("music.flac"sv));
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EXPECT_EQ("audio/x-flac"sv, tr_get_mime_type_for_filename("music.FLAC"sv));
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EXPECT_EQ("video/x-msvideo"sv, tr_get_mime_type_for_filename(".avi"sv));
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EXPECT_EQ("video/x-msvideo"sv, tr_get_mime_type_for_filename("/path/to/FILENAME.AVI"sv));
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EXPECT_EQ("application/octet-stream"sv, tr_get_mime_type_for_filename("music.ajoijfeisfe"sv));
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}
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TEST_F(UtilsTest, saveFile)
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{
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auto filename = tr_pathbuf{};
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// save a file to GoogleTest's temp dir
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filename.assign(::testing::TempDir(), "filename.txt"sv);
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auto contents = "these are the contents"sv;
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tr_error* error = nullptr;
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EXPECT_TRUE(tr_saveFile(filename.sv(), contents, &error));
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EXPECT_EQ(nullptr, error) << *error;
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// now read the file back in and confirm the contents are the same
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auto buf = std::vector<char>{};
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EXPECT_TRUE(tr_loadFile(filename.sv(), buf, &error));
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EXPECT_EQ(nullptr, error) << *error;
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auto sv = std::string_view{ std::data(buf), std::size(buf) };
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EXPECT_EQ(contents, sv);
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// remove the tempfile
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EXPECT_TRUE(tr_sys_path_remove(filename, &error));
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EXPECT_EQ(nullptr, error) << *error;
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// try saving a file to a path that doesn't exist
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filename = "/this/path/does/not/exist/foo.txt";
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EXPECT_FALSE(tr_saveFile(filename.sv(), contents, &error));
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ASSERT_NE(nullptr, error);
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EXPECT_NE(0, error->code);
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tr_error_clear(&error);
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}
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TEST_F(UtilsTest, ratioToString)
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{
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// Testpairs contain ratio as a double and a string
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static auto constexpr Tests = std::array<std::pair<double, std::string_view>, 16>{ { { 0.0, "0.00" },
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{ 0.01, "0.01" },
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{ 0.1, "0.10" },
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{ 1.0, "1.00" },
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{ 1.015, "1.01" },
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{ 4.99, "4.99" },
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{ 4.996, "4.99" },
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{ 5.0, "5.0" },
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{ 5.09999, "5.0" },
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{ 5.1, "5.1" },
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{ 99.99, "99.9" },
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{ 100.0, "100" },
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{ 4000.4, "4000" },
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{ 600000.0, "600000" },
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{ 900000000.0, "900000000" },
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{ TR_RATIO_INF, "inf" } } };
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char const nullchar = '\0';
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ASSERT_EQ(tr_strratio(TR_RATIO_NA, "Ratio is NaN"), "None");
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ASSERT_EQ(tr_strratio(TR_RATIO_INF, "A bit longer text for infinity"), "A bit longer text for infinity");
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// Inf contains only null character
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ASSERT_EQ(tr_strratio(TR_RATIO_INF, &nullchar), "");
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for (auto const& [input, expected] : Tests)
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{
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ASSERT_EQ(tr_strratio(input, "inf"), expected);
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}
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}
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