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#include "str.h"
#include <library/cpp/testing/unittest/registar.h>
#include <util/generic/typetraits.h>
#include <util/string/join.h>
template <typename T>
const T ReturnConstTemp();
Y_UNIT_TEST_SUITE(TStringInputOutputTest) {
Y_UNIT_TEST(Lvalue) {
TString str = "Hello, World!";
TStringInput input(str);
TString result = input.ReadAll();
UNIT_ASSERT_VALUES_EQUAL(result, str);
}
Y_UNIT_TEST(ConstRef) {
TString str = "Hello, World!";
const TString& r = str;
TStringInput input(r);
TString result = input.ReadAll();
UNIT_ASSERT_VALUES_EQUAL(result, str);
}
Y_UNIT_TEST(NonConstRef) {
TString str = "Hello, World!";
TString& r = str;
TStringInput input(r);
TString result = input.ReadAll();
UNIT_ASSERT_VALUES_EQUAL(result, str);
}
Y_UNIT_TEST(Transfer) {
TString inputString = "some_string";
TStringInput input(inputString);
TString outputString;
TStringOutput output(outputString);
TransferData(&input, &output);
UNIT_ASSERT_VALUES_EQUAL(inputString, outputString);
}
Y_UNIT_TEST(SkipReadAll) {
TString string0 = "All animals are equal, but some animals are more equal than others.";
TString string1;
for (size_t i = 1; i <= string0.size(); i++) {
string1 += string0.substr(0, i);
}
TStringInput input0(string1);
size_t left = 5;
while (left > 0) {
left -= input0.Skip(left);
}
TString string2 = input0.ReadAll();
UNIT_ASSERT_VALUES_EQUAL(string2, string1.substr(5));
}
Y_UNIT_TEST(OperatorBool) {
TStringStream str;
UNIT_ASSERT(!str);
str << "data";
UNIT_ASSERT(str);
str.Clear();
UNIT_ASSERT(!str);
}
Y_UNIT_TEST(TestReadTo) {
TString s("0123456789abc");
TString t;
TStringInput in0(s);
UNIT_ASSERT_VALUES_EQUAL(in0.ReadTo(t, '7'), 8);
UNIT_ASSERT_VALUES_EQUAL(t, "0123456");
UNIT_ASSERT_VALUES_EQUAL(in0.ReadTo(t, 'z'), 5);
UNIT_ASSERT_VALUES_EQUAL(t, "89abc");
}
Y_UNIT_TEST(WriteViaNextAndUndo) {
TString str1;
TStringOutput output(str1);
TString str2;
for (size_t i = 0; i < 10000; ++i) {
str2.push_back('a' + (i % 20));
}
size_t written = 0;
void* ptr = nullptr;
while (written < str2.size()) {
size_t bufferSize = output.Next(&ptr);
UNIT_ASSERT(ptr && bufferSize > 0);
size_t toWrite = Min(bufferSize, str2.size() - written);
memcpy(ptr, str2.begin() + written, toWrite);
written += toWrite;
if (toWrite < bufferSize) {
output.Undo(bufferSize - toWrite);
}
}
UNIT_ASSERT_STRINGS_EQUAL(str1, str2);
}
Y_UNIT_TEST(Write) {
TString str;
TStringOutput output(str);
output << "1"
<< "22"
<< "333"
<< "4444"
<< "55555";
UNIT_ASSERT_STRINGS_EQUAL(str, "1"
"22"
"333"
"4444"
"55555");
}
Y_UNIT_TEST(WriteChars) {
TString str;
TStringOutput output(str);
output << '1' << '2' << '3' << '4' << '5' << '6' << '7' << '8' << '9' << '0';
UNIT_ASSERT_STRINGS_EQUAL(str, "1234567890");
}
Y_UNIT_TEST(MoveConstructor) {
TString str;
TStringOutput output1(str);
output1 << "foo";
TStringOutput output2 = std::move(output1);
output2 << "bar";
UNIT_ASSERT_STRINGS_EQUAL(str, "foobar");
// Check old stream is in a valid state
output1 << "baz";
}
Y_UNIT_TEST(MoveableStringInputStream) {
TString data{JoinSeq("\n", "qwertyuiop"sv)};
TStringInput in0{data};
TString str;
in0 >> str;
UNIT_ASSERT_VALUES_EQUAL(str, ToString(int('q')));
TStringInput in1{std::move(in0)};
in1 >> str;
UNIT_ASSERT_VALUES_EQUAL(str, ToString(int('w')));
// Check old stream is in a valid state
in0 >> str;
}
Y_UNIT_TEST(MoveableStringStream) {
TString str;
str.reserve(500);
const char* ptr = str.data();
TStringStream stream{std::move(str)};
stream << "foo"
<< "bar";
TString out = std::move(stream).Str();
UNIT_ASSERT_EQUAL(ptr, out.data());
UNIT_ASSERT_STRINGS_EQUAL(out, "foobar");
TStringStream multiline{JoinSeq("\n", "qwertyuiop"sv)};
multiline >> str;
UNIT_ASSERT_VALUES_EQUAL(str, ToString(int('q')));
TStringStream other = std::move(multiline);
// Check old stream is in a valid state
multiline >> str;
multiline << "bar";
}
// There is no distinct tests for Out<> via IOutputStream.
// Let's tests strings output here.
Y_UNIT_TEST(TestWritingWideStrings) {
using namespace std::literals::string_literals;
TString str;
TStringOutput stream(str);
// test char16_t
const char16_t* utf16Data = u"Быть или не быть? Вот в чём вопрос";
stream << std::u16string(utf16Data);
UNIT_ASSERT_STRINGS_EQUAL(str, "Быть или не быть? Вот в чём вопрос");
str.clear();
stream << std::u16string_view(utf16Data);
UNIT_ASSERT_STRINGS_EQUAL(str, "Быть или не быть? Вот в чём вопрос");
str.clear();
// test char32_t
const char32_t* utf32Data = U"Быть или не быть? Вот в чём вопрос";
stream << std::u32string(utf32Data);
UNIT_ASSERT_STRINGS_EQUAL(str, "Быть или не быть? Вот в чём вопрос");
str.clear();
stream << std::u32string_view(utf32Data);
UNIT_ASSERT_STRINGS_EQUAL(str, "Быть или не быть? Вот в чём вопрос");
str.clear();
// test wchar_t
const wchar_t* wcharData = L"Быть или не быть? Вот в чём вопрос";
stream << std::wstring(wcharData);
UNIT_ASSERT_STRINGS_EQUAL(str, "Быть или не быть? Вот в чём вопрос");
str.clear();
stream << std::wstring_view(wcharData);
UNIT_ASSERT_STRINGS_EQUAL(str, "Быть или не быть? Вот в чём вопрос");
str.clear();
}
} // Y_UNIT_TEST_SUITE(TStringInputOutputTest)
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