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HelpersTest.cpp
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// Copyright (c) 2017-2025, University of Cincinnati, developed by Henry Schreiner
// under NSF AWARD 1414736 and by the respective contributors.
// All rights reserved.
//
// SPDX-License-Identifier: BSD-3-Clause
#include "app_helper.hpp"
#include <cmath>
#include <array>
#include <atomic>
#include <complex>
#include <cstdint>
#include <cstdio>
#include <fstream>
#include <limits>
#include <map>
#include <string>
#include <tuple>
#include <unordered_map>
#include <utility>
#include <vector>
class NotStreamable {};
class Streamable {};
std::ostream &operator<<(std::ostream &out, const Streamable &) { return out << "Streamable"; }
TEST_CASE("TypeTools: Streaming", "[helpers]") {
CHECK(CLI::detail::to_string(NotStreamable{}).empty());
CHECK("Streamable" == CLI::detail::to_string(Streamable{}));
CHECK("5" == CLI::detail::to_string(5));
CHECK(std::string("string") == CLI::detail::to_string("string"));
CHECK(std::string("string") == CLI::detail::to_string(std::string("string")));
enum class t1 : std::uint8_t { enum1, enum2 };
CHECK(CLI::detail::to_string(t1::enum1) == "0");
}
TEST_CASE("TypeTools: tuple", "[helpers]") {
CHECK_FALSE(CLI::detail::is_tuple_like<int>::value);
CHECK_FALSE(CLI::detail::is_tuple_like<std::vector<double>>::value);
auto v = CLI::detail::is_tuple_like<std::tuple<double, int>>::value;
CHECK(v);
v = CLI::detail::is_tuple_like<std::tuple<double, double, double>>::value;
CHECK(v);
}
TEST_CASE("TypeTools: tuple_to_string", "[helpers]") {
std::pair<double, std::string> p1{0.999, "kWh"};
CHECK(CLI::detail::to_string(p1) == "[0.999,kWh]");
const std::tuple<std::string> t1{"kWh"};
CHECK(CLI::detail::to_string(t1) == "kWh");
const std::tuple<double> td{0.999};
CHECK(CLI::detail::to_string(td) == "0.999");
}
TEST_CASE("TypeTools: type_size", "[helpers]") {
auto V = CLI::detail::type_count<int>::value;
CHECK(1 == V);
V = CLI::detail::type_count<void>::value;
CHECK(0 == V);
V = CLI::detail::type_count<std::vector<double>>::value;
CHECK(1 == V);
V = CLI::detail::type_count<std::tuple<double, int>>::value;
CHECK(2 == V);
V = CLI::detail::type_count<std::tuple<std::string, double, int>>::value;
CHECK(3 == V);
V = CLI::detail::type_count<std::array<std::string, 5>>::value;
CHECK(5 == V);
V = CLI::detail::type_count<std::vector<std::pair<std::string, double>>>::value;
CHECK(2 == V);
V = CLI::detail::type_count<std::tuple<std::pair<std::string, double>>>::value;
CHECK(2 == V);
V = CLI::detail::type_count<std::tuple<int, std::pair<std::string, double>>>::value;
CHECK(3 == V);
V = CLI::detail::type_count<std::tuple<std::pair<int, double>, std::pair<std::string, double>>>::value;
CHECK(4 == V);
// maps
V = CLI::detail::type_count<std::map<int, std::pair<int, double>>>::value;
CHECK(3 == V);
// three level tuples
V = CLI::detail::type_count<std::tuple<int, std::pair<int, std::tuple<int, double, std::string>>>>::value;
CHECK(5 == V);
V = CLI::detail::type_count<std::pair<int, std::vector<int>>>::value;
CHECK(CLI::detail::expected_max_vector_size <= V);
V = CLI::detail::type_count<std::vector<std::vector<int>>>::value;
CHECK(CLI::detail::expected_max_vector_size == V);
}
TEST_CASE("TypeTools: type_size_min", "[helpers]") {
auto V = CLI::detail::type_count_min<int>::value;
CHECK(1 == V);
V = CLI::detail::type_count_min<void>::value;
CHECK(0 == V);
V = CLI::detail::type_count_min<std::vector<double>>::value;
CHECK(1 == V);
V = CLI::detail::type_count_min<std::tuple<double, int>>::value;
CHECK(2 == V);
V = CLI::detail::type_count_min<std::tuple<std::string, double, int>>::value;
CHECK(3 == V);
V = CLI::detail::type_count_min<std::array<std::string, 5>>::value;
CHECK(5 == V);
V = CLI::detail::type_count_min<std::vector<std::pair<std::string, double>>>::value;
CHECK(2 == V);
V = CLI::detail::type_count_min<std::tuple<std::pair<std::string, double>>>::value;
CHECK(2 == V);
V = CLI::detail::type_count_min<std::tuple<int, std::pair<std::string, double>>>::value;
CHECK(3 == V);
V = CLI::detail::type_count_min<std::tuple<std::pair<int, double>, std::pair<std::string, double>>>::value;
CHECK(4 == V);
// maps
V = CLI::detail::type_count_min<std::map<int, std::pair<int, double>>>::value;
CHECK(3 == V);
// three level tuples
V = CLI::detail::type_count_min<std::tuple<int, std::pair<int, std::tuple<int, double, std::string>>>>::value;
CHECK(5 == V);
V = CLI::detail::type_count_min<std::pair<int, std::vector<int>>>::value;
CHECK(2 == V);
V = CLI::detail::type_count_min<std::vector<std::vector<int>>>::value;
CHECK(1 == V);
V = CLI::detail::type_count_min<std::vector<std::vector<std::pair<int, int>>>>::value;
CHECK(2 == V);
}
TEST_CASE("TypeTools: expected_count", "[helpers]") {
auto V = CLI::detail::expected_count<int>::value;
CHECK(1 == V);
V = CLI::detail::expected_count<void>::value;
CHECK(0 == V);
V = CLI::detail::expected_count<std::vector<double>>::value;
CHECK(CLI::detail::expected_max_vector_size == V);
V = CLI::detail::expected_count<std::tuple<double, int>>::value;
CHECK(1 == V);
V = CLI::detail::expected_count<std::tuple<std::string, double, int>>::value;
CHECK(1 == V);
V = CLI::detail::expected_count<std::array<std::string, 5>>::value;
CHECK(1 == V);
V = CLI::detail::expected_count<std::vector<std::pair<std::string, double>>>::value;
CHECK(CLI::detail::expected_max_vector_size == V);
}
TEST_CASE("Split: SimpleByToken", "[helpers]") {
auto out = CLI::detail::split("one.two.three", '.');
REQUIRE(out.size() == 3u);
CHECK(out.at(0) == "one");
CHECK(out.at(1) == "two");
CHECK(out.at(2) == "three");
}
TEST_CASE("Split: Single", "[helpers]") {
auto out = CLI::detail::split("one", '.');
REQUIRE(out.size() == 1u);
CHECK(out.at(0) == "one");
}
TEST_CASE("Split: Empty", "[helpers]") {
auto out = CLI::detail::split("", '.');
REQUIRE(out.size() == 1u);
CHECK(out.at(0).empty());
}
TEST_CASE("String: InvalidName", "[helpers]") {
CHECK(CLI::detail::valid_name_string("valid"));
CHECK_FALSE(CLI::detail::valid_name_string("-invalid"));
CHECK(CLI::detail::valid_name_string("va-li-d"));
CHECK_FALSE(CLI::detail::valid_name_string("valid{}"));
CHECK(CLI::detail::valid_name_string("_valid"));
CHECK(CLI::detail::valid_name_string("/valid"));
CHECK(CLI::detail::valid_name_string("vali?d"));
CHECK(CLI::detail::valid_name_string("@@@@"));
CHECK(CLI::detail::valid_name_string("b@d2?"));
CHECK(CLI::detail::valid_name_string("2vali?d"));
CHECK_FALSE(CLI::detail::valid_name_string("!valid"));
CHECK_FALSE(CLI::detail::valid_name_string("!va\nlid"));
}
TEST_CASE("StringTools: Modify", "[helpers]") {
int cnt{0};
std::string newString = CLI::detail::find_and_modify("======", "=", [&cnt](std::string &str, std::size_t index) {
if((++cnt) % 2 == 0) {
str[index] = ':';
}
return index + 1;
});
CHECK("=:=:=:" == newString);
}
TEST_CASE("StringTools: Modify2", "[helpers]") {
std::string newString =
CLI::detail::find_and_modify("this is a string test", "is", [](std::string &str, std::size_t index) {
if((index > 1) && (str[index - 1] != ' ')) {
str[index] = 'a';
str[index + 1] = 't';
}
return index + 1;
});
CHECK("that is a string test" == newString);
}
TEST_CASE("StringTools: Modify3", "[helpers]") {
// this picks up 3 sets of 3 after the 'b' then collapses the new first set
std::string newString = CLI::detail::find_and_modify("baaaaaaaaaa", "aaa", [](std::string &str, std::size_t index) {
str.erase(index, 3);
str.insert(str.begin(), 'a');
return 0u;
});
CHECK("aba" == newString);
}
TEST_CASE("StringTools: flagValues", "[helpers]") {
errno = 0;
CHECK(-1 == CLI::detail::to_flag_value("0"));
CHECK(errno == 0);
CHECK(1 == CLI::detail::to_flag_value("t"));
CHECK(1 == CLI::detail::to_flag_value("1"));
CHECK(6 == CLI::detail::to_flag_value("6"));
CHECK(-6 == CLI::detail::to_flag_value("-6"));
CHECK(-1 == CLI::detail::to_flag_value("false"));
CHECK(1 == CLI::detail::to_flag_value("YES"));
errno = 0;
CLI::detail::to_flag_value("frog");
CHECK(errno == EINVAL);
errno = 0;
CLI::detail::to_flag_value("q");
CHECK(errno == EINVAL);
errno = 0;
CLI::detail::to_flag_value(
"77777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777");
CHECK(errno == ERANGE);
errno = 0;
CHECK(-1 == CLI::detail::to_flag_value("NO"));
CHECK(475555233 == CLI::detail::to_flag_value("475555233"));
}
TEST_CASE("StringTools: Validation", "[helpers]") {
CHECK(CLI::detail::isalpha(""));
CHECK(CLI::detail::isalpha("a"));
CHECK(CLI::detail::isalpha("abcd"));
CHECK_FALSE(CLI::detail::isalpha("_"));
CHECK_FALSE(CLI::detail::isalpha("2"));
CHECK_FALSE(CLI::detail::isalpha("test test"));
CHECK_FALSE(CLI::detail::isalpha("test "));
CHECK_FALSE(CLI::detail::isalpha(" test"));
CHECK_FALSE(CLI::detail::isalpha("test2"));
}
TEST_CASE("StringTools: binaryEscapeConversion", "[helpers]") {
std::string testString("string1");
std::string estring = CLI::detail::binary_escape_string(testString);
CHECK(testString == estring);
CHECK_FALSE(CLI::detail::is_binary_escaped_string(estring));
std::string testString2("\nstring1\n");
estring = CLI::detail::binary_escape_string(testString2);
CHECK_FALSE(testString == estring);
CHECK(CLI::detail::is_binary_escaped_string(estring));
std::string rstring = CLI::detail::extract_binary_string(estring);
CHECK(rstring == testString2);
CLI::detail::remove_quotes(estring);
CHECK(CLI::detail::is_binary_escaped_string(estring));
std::string rstringrq = CLI::detail::extract_binary_string(estring);
CHECK(rstringrq == testString2);
testString2.push_back(0);
testString2.push_back(static_cast<char>(197));
testString2.push_back(78);
testString2.push_back(-34);
rstring = CLI::detail::extract_binary_string(CLI::detail::binary_escape_string(testString2));
CHECK(rstring == testString2);
testString2.push_back('b');
testString2.push_back('G');
rstring = CLI::detail::extract_binary_string(CLI::detail::binary_escape_string(testString2));
CHECK(rstring == testString2);
auto rstring2 = CLI::detail::extract_binary_string(rstring);
CHECK(rstring == rstring2);
}
TEST_CASE("StringTools: binaryEscapeConversion2", "[helpers]") {
std::string testString;
testString.push_back(0);
testString.push_back(0);
testString.push_back(0);
testString.push_back(56);
testString.push_back(-112);
testString.push_back(-112);
testString.push_back(39);
testString.push_back(97);
std::string estring = CLI::detail::binary_escape_string(testString);
CHECK(CLI::detail::is_binary_escaped_string(estring));
std::string rstring = CLI::detail::extract_binary_string(estring);
CHECK(rstring == testString);
}
TEST_CASE("StringTools: binaryEscapeConversion_withX", "[helpers]") {
std::string testString("hippy\\x35mm\\XF3_helpX26fox19");
testString.push_back(0);
testString.push_back(0);
testString.push_back(0);
testString.push_back(56);
testString.push_back(-112);
testString.push_back(-112);
testString.push_back(39);
testString.push_back(97);
std::string estring = CLI::detail::binary_escape_string(testString);
CHECK(CLI::detail::is_binary_escaped_string(estring));
std::string rstring = CLI::detail::extract_binary_string(estring);
CHECK(rstring == testString);
}
TEST_CASE("StringTools: binaryEscapeConversion_withBrackets", "[helpers]") {
std::string vstr = R"raw('B"([\xb0\x0a\xb0/\xb0\xb0\xb0\xb0\xb0\xb0\xb0\xb0\xb0\xb0\xb0\xb0\xb0])"')raw";
std::string testString("[");
testString.push_back(-80);
testString.push_back('\n');
testString.push_back(-80);
testString.push_back('/');
for(int ii = 0; ii < 13; ++ii) {
testString.push_back(-80);
}
testString.push_back(']');
std::string estring = CLI::detail::binary_escape_string(testString);
CHECK(CLI::detail::is_binary_escaped_string(estring));
CHECK(estring == vstr);
std::string rstring = CLI::detail::extract_binary_string(estring);
CHECK(rstring == testString);
}
TEST_CASE("StringTools: binaryStrings", "[helpers]") {
std::string rstring = "B\"()\"";
CHECK(CLI::detail::extract_binary_string(rstring).empty());
rstring = "B\"(\\x35\\xa7)\"";
CHECK(CLI::detail::is_binary_escaped_string(rstring));
auto result = CLI::detail::extract_binary_string(rstring);
CHECK(result[0] == static_cast<char>(0x35));
CHECK(result[1] == static_cast<char>(0xa7));
rstring = "'B\"(\\x3e\\xf7)\"'";
CHECK(CLI::detail::is_binary_escaped_string(rstring));
result = CLI::detail::extract_binary_string(rstring);
CHECK(result[0] == static_cast<char>(0x3e));
CHECK(result[1] == static_cast<char>(0xf7));
rstring = "B\"(\\x3E\\xf7)\"";
result = CLI::detail::extract_binary_string(rstring);
CHECK(result[0] == static_cast<char>(0x3e));
CHECK(result[1] == static_cast<char>(0xf7));
rstring = "B\"(\\X3E\\XF7)\"";
result = CLI::detail::extract_binary_string(rstring);
CHECK(result[0] == static_cast<char>(0x3e));
CHECK(result[1] == static_cast<char>(0xf7));
rstring = "B\"(\\XME\\XK7)\"";
result = CLI::detail::extract_binary_string(rstring);
CHECK(result == "\\XME\\XK7");
rstring = "B\"(\\XEM\\X7K)\"";
result = CLI::detail::extract_binary_string(rstring);
CHECK(result == "\\XEM\\X7K");
}
TEST_CASE("StringTools: escapeConversion", "[helpers]") {
CHECK(CLI::detail::remove_escaped_characters("test\\\"") == "test\"");
CHECK(CLI::detail::remove_escaped_characters("test\\\\") == "test\\");
CHECK(CLI::detail::remove_escaped_characters("test\\b") == "test\b");
CHECK(CLI::detail::remove_escaped_characters("test\\t") == "test\t");
CHECK(CLI::detail::remove_escaped_characters("test\\n\\r\\t\\f") == "test\n\r\t\f");
CHECK(CLI::detail::remove_escaped_characters("test\\r") == "test\r");
CHECK(CLI::detail::remove_escaped_characters("test\\f") == "test\f");
std::string zstring = "test";
zstring.push_back('\0');
zstring.append("test\n");
CHECK(CLI::detail::remove_escaped_characters("test\\0test\\n") == zstring);
CHECK_THROWS_AS(CLI::detail::remove_escaped_characters("test\\m_bad"), std::invalid_argument);
CHECK_THROWS_AS(CLI::detail::remove_escaped_characters("test\\"), std::invalid_argument);
}
TEST_CASE("StringTools: quotedString", "[helpers]") {
std::string rstring = "'B\"(\\x35\\xa7)\"'";
auto s2 = rstring;
CLI::detail::process_quoted_string(s2);
CHECK(s2[0] == static_cast<char>(0x35));
CHECK(s2[1] == static_cast<char>(0xa7));
s2 = rstring;
CLI::detail::remove_quotes(s2);
CLI::detail::process_quoted_string(s2);
CHECK(s2[0] == static_cast<char>(0x35));
CHECK(s2[1] == static_cast<char>(0xa7));
std::string qbase = R"("this\nis\na\nfour\tline test")";
std::string qresult = "this\nis\na\nfour\tline test";
std::string q1 = qbase;
// test remove quotes and escape processing
CLI::detail::process_quoted_string(q1);
CHECK(q1 == qresult);
std::string q2 = qbase;
q2.front() = '\'';
q2.pop_back();
q2.push_back('\'');
std::string qliteral = qbase.substr(1);
qliteral.pop_back();
// test remove quotes for literal string
CHECK(CLI::detail::process_quoted_string(q2));
CHECK(q2 == qliteral);
std::string q3 = qbase;
q3.front() = '`';
q3.pop_back();
q3.push_back('`');
// test remove quotes for literal string
CHECK(CLI::detail::process_quoted_string(q3));
CHECK(q3 == qliteral);
std::string q4 = qbase;
q4.front() = '|';
q4.pop_back();
q4.push_back('|');
// check that it doesn't process
CHECK_FALSE(CLI::detail::process_quoted_string(q4));
// test custom string quote character
CHECK(CLI::detail::process_quoted_string(q4, '|'));
CHECK(q4 == qresult);
std::string q5 = qbase;
q5.front() = '?';
q5.pop_back();
q5.push_back('?');
// test custom literal quote character
CHECK(CLI::detail::process_quoted_string(q5, '|', '?'));
CHECK(q5 == qliteral);
q3 = qbase;
q3.front() = '`';
q3.pop_back();
q3.push_back('`');
// test that '`' still works regardless of the other specified characters
CHECK(CLI::detail::process_quoted_string(q3));
CHECK(q3 == qliteral);
}
TEST_CASE("StringTools: unicode_literals", "[helpers]") {
CHECK(CLI::detail::remove_escaped_characters("test\\u03C0\\u00e9") == from_u8string(u8"test\u03C0\u00E9"));
CHECK(CLI::detail::remove_escaped_characters("test\\u73C0\\u0057") == from_u8string(u8"test\u73C0\u0057"));
CHECK(CLI::detail::remove_escaped_characters("test\\U0001F600\\u00E9") == from_u8string(u8"test\U0001F600\u00E9"));
CHECK_THROWS_AS(CLI::detail::remove_escaped_characters("test\\U0001M600\\u00E9"), std::invalid_argument);
CHECK_THROWS_AS(CLI::detail::remove_escaped_characters("test\\U0001E600\\u00M9"), std::invalid_argument);
CHECK_THROWS_AS(CLI::detail::remove_escaped_characters("test\\U0001E600\\uD8E9"), std::invalid_argument);
CHECK_THROWS_AS(CLI::detail::remove_escaped_characters("test\\U0001E600\\uD8"), std::invalid_argument);
CHECK_THROWS_AS(CLI::detail::remove_escaped_characters("test\\U0001E60"), std::invalid_argument);
}
TEST_CASE("StringTools: close_sequence", "[helpers]") {
CHECK(CLI::detail::close_sequence("[test]", 0, ']') == 5U);
CHECK(CLI::detail::close_sequence("[\"test]\"]", 0, ']') == 8U);
CHECK(CLI::detail::close_sequence("[\"test]\"],[t2]", 0, ']') == 8U);
CHECK(CLI::detail::close_sequence("[\"test]\"],[t2]", 10, ']') == 13U);
CHECK(CLI::detail::close_sequence("{\"test]\"],[t2]", 0, '}') == 14U);
CHECK(CLI::detail::close_sequence("[(),(),{},\"]]52{}\",[],[54],[[],[],()]]", 0, ']') == 37U);
}
TEST_CASE("Trim: Various", "[helpers]") {
std::string s1{" sdlfkj sdflk sd s "};
std::string a1{"sdlfkj sdflk sd s"};
CLI::detail::trim(s1);
CHECK(s1 == a1);
std::string s2{" a \t"};
CLI::detail::trim(s2);
CHECK(s2 == "a");
std::string s3{" a \n"};
CLI::detail::trim(s3);
CHECK(s3 == "a");
std::string s4{" a b "};
CHECK(CLI::detail::trim(s4) == "a b");
}
TEST_CASE("Trim: VariousFilters", "[helpers]") {
std::string s1{" sdlfkj sdflk sd s "};
std::string a1{"sdlfkj sdflk sd s"};
CLI::detail::trim(s1, " ");
CHECK(s1 == a1);
std::string s2{" a \t"};
CLI::detail::trim(s2, " ");
CHECK(s2 == "a \t");
std::string s3{"abdavda"};
CLI::detail::trim(s3, "a");
CHECK(s3 == "bdavd");
std::string s4{"abcabcabc"};
CHECK(CLI::detail::trim(s4, "ab") == "cabcabc");
}
TEST_CASE("Trim: TrimCopy", "[helpers]") {
std::string orig{" cabc "};
std::string trimmed = CLI::detail::trim_copy(orig);
CHECK(trimmed == "cabc");
CHECK(trimmed != orig);
CLI::detail::trim(orig);
CHECK(orig == trimmed);
orig = "abcabcabc";
trimmed = CLI::detail::trim_copy(orig, "ab");
CHECK(trimmed == "cabcabc");
CHECK(trimmed != orig);
CLI::detail::trim(orig, "ab");
CHECK(orig == trimmed);
}
TEST_CASE("Validators: FileExists", "[helpers]") {
std::string myfile{"TestFileNotUsed.txt"};
CHECK_FALSE(CLI::ExistingFile(myfile).empty());
bool ok = static_cast<bool>(std::ofstream(myfile.c_str()).put('a')); // create file
CHECK(ok);
CHECK(CLI::ExistingFile(myfile).empty());
std::remove(myfile.c_str());
CHECK_FALSE(CLI::ExistingFile(myfile).empty());
}
TEST_CASE("Validators: FileNotExists", "[helpers]") {
std::string myfile{"TestFileNotUsed.txt"};
CHECK(CLI::NonexistentPath(myfile).empty());
bool ok = static_cast<bool>(std::ofstream(myfile.c_str()).put('a')); // create file
CHECK(ok);
CHECK_FALSE(CLI::NonexistentPath(myfile).empty());
std::remove(myfile.c_str());
CHECK(CLI::NonexistentPath(myfile).empty());
}
TEST_CASE("Validators: FilePathModifier", "[helpers]") {
std::string myfile{"../TestFileNotUsed_1.txt"};
bool ok = static_cast<bool>(std::ofstream(myfile.c_str()).put('a')); // create file
CHECK(ok);
std::string filename = "TestFileNotUsed_1.txt";
CLI::FileOnDefaultPath defPath("../");
CHECK(defPath(filename).empty());
CHECK(filename == myfile);
std::string filename2 = "nonexistingfile.csv";
CHECK_FALSE(defPath(filename2).empty());
// check it didn't modify the string
CHECK(filename2 == "nonexistingfile.csv");
CHECK(defPath(filename).empty());
std::remove(myfile.c_str());
CHECK_FALSE(defPath(myfile).empty());
// now test the no error version
CLI::FileOnDefaultPath defPathNoFail("../", false);
CHECK(defPathNoFail(filename2).empty());
CHECK(filename2 == "nonexistingfile.csv");
}
TEST_CASE("Validators: FileIsDir", "[helpers]") {
std::string mydir{"../tests"};
CHECK(!CLI::ExistingFile(mydir).empty());
}
TEST_CASE("Validators: DirectoryExists", "[helpers]") {
std::string mydir{"tests"};
CHECK(CLI::ExistingDirectory(mydir).empty());
}
TEST_CASE("Validators: DirectoryNotExists", "[helpers]") {
std::string mydir{"nondirectory"};
CHECK(!CLI::ExistingDirectory(mydir).empty());
}
TEST_CASE("Validators: DirectoryIsFile", "[helpers]") {
std::string myfile{"TestFileNotUsed.txt"};
CHECK(CLI::NonexistentPath(myfile).empty());
bool ok = static_cast<bool>(std::ofstream(myfile.c_str()).put('a')); // create file
CHECK(ok);
CHECK_FALSE(CLI::ExistingDirectory(myfile).empty());
std::remove(myfile.c_str());
CHECK(CLI::NonexistentPath(myfile).empty());
}
TEST_CASE("Validators: PathExistsDir", "[helpers]") {
std::string mydir{"tests"};
CHECK(CLI::ExistingPath(mydir).empty());
}
TEST_CASE("Validators: PathExistsFile", "[helpers]") {
std::string myfile{"TestFileNotUsed.txt"};
CHECK_FALSE(CLI::ExistingPath(myfile).empty());
bool ok = static_cast<bool>(std::ofstream(myfile.c_str()).put('a')); // create file
CHECK(ok);
CHECK(CLI::ExistingPath(myfile).empty());
std::remove(myfile.c_str());
CHECK_FALSE(CLI::ExistingPath(myfile).empty());
}
TEST_CASE("Validators: PathNotExistsDir", "[helpers]") {
std::string mydir{"nonpath"};
CHECK(!CLI::ExistingPath(mydir).empty());
}
TEST_CASE("Validators: IPValidate1", "[helpers]") {
std::string ip = "1.1.1.1";
CHECK(CLI::ValidIPV4(ip).empty());
ip = "224.255.0.1";
CHECK(CLI::ValidIPV4(ip).empty());
ip = "-1.255.0.1";
CHECK_FALSE(CLI::ValidIPV4(ip).empty());
ip = "1.256.0.1";
CHECK_FALSE(CLI::ValidIPV4(ip).empty());
ip = "1.256.0.1";
CHECK_FALSE(CLI::ValidIPV4(ip).empty());
ip = "aaa";
CHECK_FALSE(CLI::ValidIPV4(ip).empty());
ip = "1.2.3.abc";
CHECK_FALSE(CLI::ValidIPV4(ip).empty());
ip = "11.22";
CHECK_FALSE(CLI::ValidIPV4(ip).empty());
}
TEST_CASE("Validators: PositiveValidator", "[helpers]") {
std::string num = "1.1.1.1";
CHECK_FALSE(CLI::PositiveNumber(num).empty());
num = "1";
CHECK(CLI::PositiveNumber(num).empty());
num = "10000";
CHECK(CLI::PositiveNumber(num).empty());
num = "0";
CHECK_FALSE(CLI::PositiveNumber(num).empty());
num = "+0.5";
CHECK(CLI::PositiveNumber(num).empty());
num = "-1";
CHECK_FALSE(CLI::PositiveNumber(num).empty());
num = "-1.5";
CHECK_FALSE(CLI::PositiveNumber(num).empty());
num = "a";
CHECK_FALSE(CLI::PositiveNumber(num).empty());
}
TEST_CASE("Validators: NonNegativeValidator", "[helpers]") {
std::string num = "1.1.1.1";
CHECK_FALSE(CLI::NonNegativeNumber(num).empty());
num = "1";
CHECK(CLI::NonNegativeNumber(num).empty());
num = "10000";
CHECK(CLI::NonNegativeNumber(num).empty());
num = "0";
CHECK(CLI::NonNegativeNumber(num).empty());
num = "+0.5";
CHECK(CLI::NonNegativeNumber(num).empty());
num = "-1";
CHECK_FALSE(CLI::NonNegativeNumber(num).empty());
num = "-1.5";
CHECK_FALSE(CLI::NonNegativeNumber(num).empty());
num = "a";
CHECK_FALSE(CLI::NonNegativeNumber(num).empty());
}
TEST_CASE("Validators: NumberValidator", "[helpers]") {
std::string num = "1.1.1.1";
CHECK_FALSE(CLI::Number(num).empty());
num = "1.7";
CHECK(CLI::Number(num).empty());
num = "10000";
CHECK(CLI::Number(num).empty());
num = "-0.000";
CHECK(CLI::Number(num).empty());
num = "+1.55";
CHECK(CLI::Number(num).empty());
num = "a";
CHECK_FALSE(CLI::Number(num).empty());
}
TEST_CASE("Validators: CombinedAndRange", "[helpers]") {
auto crange = CLI::Range(0, 12) & CLI::Range(4, 16);
CHECK(crange("4").empty());
CHECK(crange("12").empty());
CHECK(crange("7").empty());
CHECK_FALSE(crange("-2").empty());
CHECK_FALSE(crange("2").empty());
CHECK_FALSE(crange("15").empty());
CHECK_FALSE(crange("16").empty());
CHECK_FALSE(crange("18").empty());
}
TEST_CASE("Validators: CombinedOrRange", "[helpers]") {
auto crange = CLI::Range(0, 4) | CLI::Range(8, 12);
CHECK_FALSE(crange("-2").empty());
CHECK(crange("2").empty());
CHECK_FALSE(crange("5").empty());
CHECK(crange("8").empty());
CHECK(crange("12").empty());
CHECK_FALSE(crange("16").empty());
}
TEST_CASE("Validators: CombinedPaths", "[helpers]") {
std::string myfile{"TestFileNotUsed.txt"};
CHECK_FALSE(CLI::ExistingFile(myfile).empty());
bool ok = static_cast<bool>(std::ofstream(myfile.c_str()).put('a')); // create file
CHECK(ok);
std::string dir{"tests"};
std::string notpath{"nondirectory"};
auto path_or_dir = CLI::ExistingPath | CLI::ExistingDirectory;
CHECK(path_or_dir(dir).empty());
CHECK(path_or_dir(myfile).empty());
CHECK_FALSE(path_or_dir(notpath).empty());
auto file_or_dir = CLI::ExistingFile | CLI::ExistingDirectory;
CHECK(file_or_dir(dir).empty());
CHECK(file_or_dir(myfile).empty());
CHECK_FALSE(file_or_dir(notpath).empty());
auto path_and_dir = CLI::ExistingPath & CLI::ExistingDirectory;
CHECK(path_and_dir(dir).empty());
CHECK_FALSE(path_and_dir(myfile).empty());
CHECK_FALSE(path_and_dir(notpath).empty());
auto path_and_file = CLI::ExistingFile & CLI::ExistingDirectory;
CHECK_FALSE(path_and_file(dir).empty());
CHECK_FALSE(path_and_file(myfile).empty());
CHECK_FALSE(path_and_file(notpath).empty());
std::remove(myfile.c_str());
CHECK_FALSE(CLI::ExistingFile(myfile).empty());
}
TEST_CASE("Validators: ProgramNameSplit", "[helpers]") {
TempFile myfile{"program_name1.exe"};
{
std::ofstream out{myfile};
out << "useless string doesn't matter" << '\n';
}
auto res =
CLI::detail::split_program_name(std::string("./") + std::string(myfile) + " this is a bunch of extra stuff ");
CHECK(std::string("./") + std::string(myfile) == res.first);
CHECK("this is a bunch of extra stuff" == res.second);
TempFile myfile2{"program name1.exe"};
{
std::ofstream out{myfile2};
out << "useless string doesn't matter" << '\n';
}
res = CLI::detail::split_program_name(std::string(" ") + std::string("./") + std::string(myfile2) +
" this is a bunch of extra stuff ");
CHECK(std::string("./") + std::string(myfile2) == res.first);
CHECK("this is a bunch of extra stuff" == res.second);
res = CLI::detail::split_program_name("./program_name this is a bunch of extra stuff ");
CHECK("./program_name" == res.first);
CHECK("this is a bunch of extra stuff" == res.second);
res = CLI::detail::split_program_name(std::string(" ./") + std::string(myfile) + " ");
CHECK(std::string("./") + std::string(myfile) == res.first);
CHECK(res.second.empty());
res = CLI::detail::split_program_name("'odd_program_name.exe --arg --arg2=5");
CHECK("'odd_program_name.exe" == res.first);
CHECK_FALSE(res.second.empty());
}
TEST_CASE("CheckedMultiply: Int", "[helpers]") {
int a{10};
int b{-20};
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE(-200 == a);
a = 0;
b = -20;
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE(0 == a);
a = 20;
b = 0;
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE(0 == a);
a = (std::numeric_limits<int>::max)();
b = 1;
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE((std::numeric_limits<int>::max)() == a);
a = (std::numeric_limits<int>::max)();
b = 2;
REQUIRE(!CLI::detail::checked_multiply(a, b));
REQUIRE((std::numeric_limits<int>::max)() == a);
a = (std::numeric_limits<int>::max)();
b = -1;
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE(-(std::numeric_limits<int>::max)() == a);
a = (std::numeric_limits<int>::max)();
b = (std::numeric_limits<int>::max)();
REQUIRE(!CLI::detail::checked_multiply(a, b));
REQUIRE((std::numeric_limits<int>::max)() == a);
a = (std::numeric_limits<int>::min)();
b = (std::numeric_limits<int>::max)();
REQUIRE(!CLI::detail::checked_multiply(a, b));
REQUIRE((std::numeric_limits<int>::min)() == a);
a = (std::numeric_limits<int>::min)();
b = 1;
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE((std::numeric_limits<int>::min)() == a);
a = (std::numeric_limits<int>::min)();
b = -1;
REQUIRE(!CLI::detail::checked_multiply(a, b));
REQUIRE((std::numeric_limits<int>::min)() == a);
b = (std::numeric_limits<int>::min)();
a = -1;
REQUIRE(!CLI::detail::checked_multiply(a, b));
REQUIRE(-1 == a);
a = (std::numeric_limits<int>::min)() / 100;
b = 99;
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE((std::numeric_limits<int>::min)() / 100 * 99 == a);
a = (std::numeric_limits<int>::min)() / 100;
b = -101;
REQUIRE(!CLI::detail::checked_multiply(a, b));
REQUIRE((std::numeric_limits<int>::min)() / 100 == a);
a = 2;
b = (std::numeric_limits<int>::min)() / 2;
REQUIRE(CLI::detail::checked_multiply(a, b));
a = (std::numeric_limits<int>::min)() / 2;
b = 2;
REQUIRE(CLI::detail::checked_multiply(a, b));
a = 4;
b = (std::numeric_limits<int>::min)() / 4;
REQUIRE(CLI::detail::checked_multiply(a, b));
a = 48;
b = (std::numeric_limits<int>::min)() / 48;
REQUIRE(CLI::detail::checked_multiply(a, b));
}
TEST_CASE("CheckedMultiply: SizeT", "[helpers]") {
std::size_t a = 10;
std::size_t b = 20;
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE(200u == a);
a = 0u;
b = 20u;
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE(0u == a);
a = 20u;
b = 0u;
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE(0u == a);
a = (std::numeric_limits<std::size_t>::max)();
b = 1u;
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE((std::numeric_limits<std::size_t>::max)() == a);
a = (std::numeric_limits<std::size_t>::max)();
b = 2u;
REQUIRE(!CLI::detail::checked_multiply(a, b));
REQUIRE((std::numeric_limits<std::size_t>::max)() == a);
a = (std::numeric_limits<std::size_t>::max)();
b = (std::numeric_limits<std::size_t>::max)();
REQUIRE(!CLI::detail::checked_multiply(a, b));
REQUIRE((std::numeric_limits<std::size_t>::max)() == a);
a = (std::numeric_limits<std::size_t>::max)() / 100;
b = 99u;
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE((std::numeric_limits<std::size_t>::max)() / 100u * 99u == a);
}
TEST_CASE("CheckedMultiply: Float", "[helpers]") {
float a{10.0F};
float b{20.0F};
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE(200 == Approx(a));
a = 0.0F;
b = 20.0F;
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE(0 == Approx(a));
a = INFINITY;
b = 20.0F;
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE(INFINITY == Approx(a));
a = 2.0F;
b = -INFINITY;
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE(-INFINITY == Approx(a));
a = (std::numeric_limits<float>::max)() / 100.0F;
b = 1.0F;
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE((std::numeric_limits<float>::max)() / 100.0F == Approx(a));
a = (std::numeric_limits<float>::max)() / 100.0F;
b = 99.0F;
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE((std::numeric_limits<float>::max)() / 100.0F * 99.0F == Approx(a));
a = (std::numeric_limits<float>::max)() / 100.0F;
b = 101;
REQUIRE(!CLI::detail::checked_multiply(a, b));
REQUIRE((std::numeric_limits<float>::max)() / 100.0F == Approx(a));
a = (std::numeric_limits<float>::max)() / 100.0F;
b = -99;
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE((std::numeric_limits<float>::max)() / 100.0F * -99.0F == Approx(a));
a = (std::numeric_limits<float>::max)() / 100.0F;
b = -101;
REQUIRE(!CLI::detail::checked_multiply(a, b));
REQUIRE((std::numeric_limits<float>::max)() / 100.0F == Approx(a));
}
TEST_CASE("CheckedMultiply: Double", "[helpers]") {
double a{10.0F};
double b{20.0F};
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE(200 == Approx(a));
a = 0;
b = 20;
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE(0 == Approx(a));
a = std::numeric_limits<double>::infinity();
b = 20;
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE(std::numeric_limits<double>::infinity() == Approx(a));
a = 2;
b = -std::numeric_limits<double>::infinity();
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE(-std::numeric_limits<double>::infinity() == Approx(a));
a = (std::numeric_limits<double>::max)() / 100;
b = 1;
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE((std::numeric_limits<double>::max)() / 100 == Approx(a));
a = (std::numeric_limits<double>::max)() / 100;
b = 99;
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE((std::numeric_limits<double>::max)() / 100 * 99 == Approx(a));
a = (std::numeric_limits<double>::max)() / 100;
b = 101;
REQUIRE(!CLI::detail::checked_multiply(a, b));
REQUIRE((std::numeric_limits<double>::max)() / 100 == Approx(a));
a = (std::numeric_limits<double>::max)() / 100;
b = -99;
REQUIRE(CLI::detail::checked_multiply(a, b));
REQUIRE((std::numeric_limits<double>::max)() / 100 * -99 == Approx(a));