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#include "strbuf.h"
#include <library/cpp/testing/unittest/registar.h>
#include <string_view>
Y_UNIT_TEST_SUITE(TStrBufTest) {
Y_UNIT_TEST(TestConstructorsAndOperators) {
TStringBuf str("qwerty");
UNIT_ASSERT_EQUAL(*str.data(), 'q');
UNIT_ASSERT_EQUAL(str.size(), 6);
TStringBuf str1("qwe\0rty"sv);
TStringBuf str2(str1.data());
UNIT_ASSERT_VALUES_UNEQUAL(str1, str2);
UNIT_ASSERT_VALUES_EQUAL(str1.size(), 7);
UNIT_ASSERT_VALUES_EQUAL(str2.size(), 3);
std::string_view helloWorld("Hello, World!");
TStringBuf fromStringView(helloWorld);
UNIT_ASSERT_EQUAL(fromStringView.data(), helloWorld.data());
UNIT_ASSERT_EQUAL(fromStringView.size(), helloWorld.size());
std::string_view fromStringBuf = fromStringView;
UNIT_ASSERT_EQUAL(helloWorld.data(), fromStringBuf.data());
UNIT_ASSERT_EQUAL(helloWorld.size(), fromStringBuf.size());
}
Y_UNIT_TEST(TestConstExpr) {
static constexpr TStringBuf str1("qwe\0rty", 7);
static constexpr TStringBuf str2(str1.data(), str1.size());
static constexpr TStringBuf str3 = "qwe\0rty"sv;
UNIT_ASSERT_VALUES_EQUAL(str1.size(), 7);
UNIT_ASSERT_VALUES_EQUAL(str1, str2);
UNIT_ASSERT_VALUES_EQUAL(str2, str3);
UNIT_ASSERT_VALUES_EQUAL(str1, str3);
static constexpr std::string_view view1(str1);
UNIT_ASSERT_VALUES_EQUAL(str1, view1);
static_assert(str1.data() == view1.data());
static_assert(str1.size() == view1.size());
static constexpr TStringBuf str4(view1);
UNIT_ASSERT_VALUES_EQUAL(str1, str4);
static_assert(str1.data() == str4.data());
static_assert(str1.size() == str4.size());
}
Y_UNIT_TEST(TestConstExprComparison) {
static constexpr TStringBuf str1("qwe\0rty"sv);
static constexpr TStringBuf str2("qw");
static_assert(str1 != str2);
static_assert(str1 >= str2);
static_assert(str1.StartsWith(str2));
static_assert(!str1.EndsWith(str2));
}
Y_UNIT_TEST(TestAfter) {
TStringBuf str("qwerty");
UNIT_ASSERT_VALUES_EQUAL(str.After('w'), TStringBuf("erty"));
UNIT_ASSERT_VALUES_EQUAL(str.After('x'), TStringBuf("qwerty"));
UNIT_ASSERT_VALUES_EQUAL(str.After('y'), TStringBuf());
UNIT_ASSERT_STRINGS_EQUAL(str.After('='), str);
// Also works properly on empty strings
TStringBuf empty;
UNIT_ASSERT_STRINGS_EQUAL(empty.After('x'), empty);
}
Y_UNIT_TEST(TestBefore) {
TStringBuf str("qwerty");
UNIT_ASSERT_VALUES_EQUAL(str.Before('w'), TStringBuf("q"));
UNIT_ASSERT_VALUES_EQUAL(str.Before('x'), TStringBuf("qwerty"));
UNIT_ASSERT_VALUES_EQUAL(str.Before('y'), TStringBuf("qwert"));
UNIT_ASSERT_VALUES_EQUAL(str.Before('q'), TStringBuf());
}
Y_UNIT_TEST(TestRAfterBefore) {
TStringBuf str("a/b/c");
UNIT_ASSERT_STRINGS_EQUAL(str.RAfter('/'), "c");
UNIT_ASSERT_STRINGS_EQUAL(str.RAfter('_'), str);
UNIT_ASSERT_STRINGS_EQUAL(str.RAfter('a'), "/b/c");
UNIT_ASSERT_STRINGS_EQUAL(str.RBefore('/'), "a/b");
UNIT_ASSERT_STRINGS_EQUAL(str.RBefore('_'), str);
UNIT_ASSERT_STRINGS_EQUAL(str.RBefore('a'), "");
}
Y_UNIT_TEST(TestAfterPrefix) {
TStringBuf str("cat_dog");
TStringBuf r = "the_same";
UNIT_ASSERT(!str.AfterPrefix("dog", r));
UNIT_ASSERT_EQUAL(r, "the_same");
UNIT_ASSERT(str.AfterPrefix("cat_", r));
UNIT_ASSERT_EQUAL(r, "dog");
// example:
str = "http://ya.ru";
if (str.AfterPrefix("http://", r)) {
UNIT_ASSERT_EQUAL(r, "ya.ru");
}
// SkipPrefix()
TStringBuf a = "abcdef";
UNIT_ASSERT(a.SkipPrefix("a") && a == "bcdef");
UNIT_ASSERT(a.SkipPrefix("bc") && a == "def");
UNIT_ASSERT(a.SkipPrefix("") && a == "def");
UNIT_ASSERT(!a.SkipPrefix("xyz") && a == "def");
UNIT_ASSERT(!a.SkipPrefix("defg") && a == "def");
UNIT_ASSERT(a.SkipPrefix("def") && a == "");
UNIT_ASSERT(a.SkipPrefix("") && a == "");
UNIT_ASSERT(!a.SkipPrefix("def") && a == "");
}
Y_UNIT_TEST(TestBeforeSuffix) {
TStringBuf str("cat_dog");
TStringBuf r = "the_same";
UNIT_ASSERT(!str.BeforeSuffix("cat", r));
UNIT_ASSERT_EQUAL(r, "the_same");
UNIT_ASSERT(str.BeforeSuffix("_dog", r));
UNIT_ASSERT_EQUAL(r, "cat");
// example:
str = "maps.yandex.com.ua";
if (str.BeforeSuffix(".ru", r)) {
UNIT_ASSERT_EQUAL(r, "maps.yandex");
}
// ChopSuffix()
TStringBuf a = "abcdef";
UNIT_ASSERT(a.ChopSuffix("f") && a == "abcde");
UNIT_ASSERT(a.ChopSuffix("de") && a == "abc");
UNIT_ASSERT(a.ChopSuffix("") && a == "abc");
UNIT_ASSERT(!a.ChopSuffix("xyz") && a == "abc");
UNIT_ASSERT(!a.ChopSuffix("abcd") && a == "abc");
UNIT_ASSERT(a.ChopSuffix("abc") && a == "");
UNIT_ASSERT(a.ChopSuffix("") && a == "");
UNIT_ASSERT(!a.ChopSuffix("abc") && a == "");
}
Y_UNIT_TEST(TestEmpty) {
UNIT_ASSERT(TStringBuf().empty());
UNIT_ASSERT(!TStringBuf("q").empty());
}
Y_UNIT_TEST(TestShift) {
TStringBuf qw("qwerty");
TStringBuf str;
str = qw;
str.Chop(10);
UNIT_ASSERT(str.empty());
str = qw;
UNIT_ASSERT_EQUAL(str.SubStr(2), TStringBuf("erty"));
UNIT_ASSERT_EQUAL(str.Skip(3), qw.SubStr(3));
str.Chop(1);
UNIT_ASSERT_EQUAL(str, TStringBuf("rt"));
}
Y_UNIT_TEST(TestSplit) {
TStringBuf qw("qwerty");
TStringBuf lt, rt;
rt = qw;
lt = rt.NextTok('r');
UNIT_ASSERT_EQUAL(lt, TStringBuf("qwe"));
UNIT_ASSERT_EQUAL(rt, TStringBuf("ty"));
lt = qw;
rt = lt.SplitOff('r');
UNIT_ASSERT_EQUAL(lt, TStringBuf("qwe"));
UNIT_ASSERT_EQUAL(rt, TStringBuf("ty"));
rt = qw;
lt = rt.NextTok('r');
TStringBuf ty = rt.NextTok('r'); // no 'r' in "ty"
UNIT_ASSERT_EQUAL(rt.size(), 0);
UNIT_ASSERT_EQUAL(ty, TStringBuf("ty"));
}
Y_UNIT_TEST(TestNextTok) {
TStringBuf buf("12q45q");
TStringBuf tok;
UNIT_ASSERT(buf.NextTok('q', tok) && tok == "12");
UNIT_ASSERT(buf.NextTok('q', tok) && tok == "45");
UNIT_ASSERT(!buf.NextTok('q', tok));
}
Y_UNIT_TEST(TestNextStringTok) {
TStringBuf buf1("a@@b@@c");
UNIT_ASSERT_EQUAL(buf1.NextTok("@@"), TStringBuf("a"));
UNIT_ASSERT_EQUAL(buf1.NextTok("@@"), TStringBuf("b"));
UNIT_ASSERT_EQUAL(buf1.NextTok("@@"), TStringBuf("c"));
UNIT_ASSERT_EQUAL(buf1, TStringBuf());
TStringBuf buf2("a@@b@@c");
UNIT_ASSERT_EQUAL(buf2.RNextTok("@@"), TStringBuf("c"));
UNIT_ASSERT_EQUAL(buf2.RNextTok("@@"), TStringBuf("b"));
UNIT_ASSERT_EQUAL(buf2.RNextTok("@@"), TStringBuf("a"));
UNIT_ASSERT_EQUAL(buf2, TStringBuf());
TStringBuf buf3("a@@b@@c");
UNIT_ASSERT_EQUAL(buf3.RNextTok("@@@"), TStringBuf("a@@b@@c"));
UNIT_ASSERT_EQUAL(buf3, TStringBuf());
}
Y_UNIT_TEST(TestReadLine) {
TStringBuf buf("12\n45\r\n\r\n23");
TStringBuf tok;
buf.ReadLine(tok);
UNIT_ASSERT_VALUES_EQUAL(tok, "12");
buf.ReadLine(tok);
UNIT_ASSERT_VALUES_EQUAL(tok, "45");
buf.ReadLine(tok);
UNIT_ASSERT_VALUES_EQUAL(tok, "");
buf.ReadLine(tok);
UNIT_ASSERT_VALUES_EQUAL(tok, "23");
UNIT_ASSERT(!buf.ReadLine(tok));
}
Y_UNIT_TEST(TestRFind) {
TStringBuf buf1 = "123123456";
UNIT_ASSERT_EQUAL(buf1.rfind('3'), 5);
UNIT_ASSERT_EQUAL(buf1.rfind('4'), 6);
UNIT_ASSERT_EQUAL(buf1.rfind('7'), TStringBuf::npos);
TStringBuf buf2;
UNIT_ASSERT_EQUAL(buf2.rfind('3'), TStringBuf::npos);
TStringBuf buf3 = TStringBuf("123123456", 6);
UNIT_ASSERT_EQUAL(buf3.rfind('3'), 5);
UNIT_ASSERT_EQUAL(buf3.rfind('4'), TStringBuf::npos);
UNIT_ASSERT_EQUAL(buf3.rfind('7'), TStringBuf::npos);
TStringBuf buf4 = TStringBuf("123123456", 5);
UNIT_ASSERT_EQUAL(buf4.rfind('3'), 2);
}
Y_UNIT_TEST(TestRNextTok) {
TStringBuf buf1("a.b.c");
UNIT_ASSERT_EQUAL(buf1.RNextTok('.'), TStringBuf("c"));
UNIT_ASSERT_EQUAL(buf1, TStringBuf("a.b"));
TStringBuf buf2("a");
UNIT_ASSERT_EQUAL(buf2.RNextTok('.'), TStringBuf("a"));
UNIT_ASSERT_EQUAL(buf2, TStringBuf());
TStringBuf buf3("ab cd ef"), tok;
UNIT_ASSERT(buf3.RNextTok(' ', tok) && tok == "ef" && buf3 == "ab cd");
UNIT_ASSERT(buf3.RNextTok(' ', tok) && tok == "cd" && buf3 == "ab");
UNIT_ASSERT(buf3.RNextTok(' ', tok) && tok == "ab" && buf3 == "");
UNIT_ASSERT(!buf3.RNextTok(' ', tok) && tok == "ab" && buf3 == ""); // not modified
}
Y_UNIT_TEST(TestRSplitOff) {
TStringBuf buf1("a.b.c");
UNIT_ASSERT_EQUAL(buf1.RSplitOff('.'), TStringBuf("a.b"));
UNIT_ASSERT_EQUAL(buf1, TStringBuf("c"));
TStringBuf buf2("a");
UNIT_ASSERT_EQUAL(buf2.RSplitOff('.'), TStringBuf());
UNIT_ASSERT_EQUAL(buf2, TStringBuf("a"));
}
Y_UNIT_TEST(TestCBeginCEnd) {
const char helloThere[] = "Hello there";
TStringBuf s{helloThere};
size_t index = 0;
for (auto it = s.cbegin(); s.cend() != it; ++it, ++index) {
UNIT_ASSERT_VALUES_EQUAL(helloThere[index], *it);
}
}
Y_UNIT_TEST(TestSplitOnAt) {
TStringBuf s = "abcabc";
TStringBuf l, r;
size_t pos = s.find('a');
UNIT_ASSERT(s.TrySplitOn(pos, l, r));
UNIT_ASSERT(l == "" && r == "bcabc");
UNIT_ASSERT(s.TrySplitAt(pos, l, r));
UNIT_ASSERT(l == "" && r == "abcabc");
pos = s.find("ca");
UNIT_ASSERT(s.TrySplitOn(pos, l, r));
UNIT_ASSERT(l == "ab" && r == "abc");
UNIT_ASSERT(s.TrySplitOn(pos, l, r, 2));
UNIT_ASSERT(l == "ab" && r == "bc");
UNIT_ASSERT(s.TrySplitAt(pos, l, r));
UNIT_ASSERT(l == "ab" && r == "cabc");
// out of range
pos = 100500;
UNIT_ASSERT(s.TrySplitOn(pos, l, r)); // still true
UNIT_ASSERT(l == "abcabc" && r == "");
l = "111";
r = "222";
UNIT_ASSERT(s.TrySplitAt(pos, l, r)); // still true
UNIT_ASSERT(l == "abcabc" && r == "");
// npos
pos = s.find("missing");
l = "111";
r = "222";
UNIT_ASSERT(!s.TrySplitOn(pos, l, r));
UNIT_ASSERT(l == "111" && r == "222"); // not modified
s.SplitOn(pos, l, r);
UNIT_ASSERT(l == "abcabc" && r == ""); // modified
l = "111";
r = "222";
UNIT_ASSERT(!s.TrySplitAt(pos, l, r));
UNIT_ASSERT(l == "111" && r == "222"); // not modified
s.SplitAt(pos, l, r);
UNIT_ASSERT(l == "abcabc" && r == ""); // modified
}
template <class T>
void PassByConstReference(const T& val) {
// In https://st.yandex-team.ru/IGNIETFERRO-294 was assumed that `const char[]` types are compile time strings
// and that CharTraits::Length may not be called for them. Unfortunately that is not true, `char[]` types
// are easily converted to `const char[]` if they are passed to a function accepting `const T&`.
UNIT_ASSERT(TStringBuf(val).size() == 5);
}
Y_UNIT_TEST(TestPassingArraysByConstReference) {
char data[] = "Hello\0word";
PassByConstReference(data);
}
Y_UNIT_TEST(TestTruncate) {
TStringBuf s = "123";
s.Trunc(5);
UNIT_ASSERT_STRINGS_EQUAL(s, "123");
s.Trunc(3);
UNIT_ASSERT_STRINGS_EQUAL(s, "123");
s.Trunc(1);
UNIT_ASSERT_STRINGS_EQUAL(s, "1");
s.Trunc(0);
UNIT_ASSERT_STRINGS_EQUAL(s, "");
s.Trunc(0);
UNIT_ASSERT_STRINGS_EQUAL(s, "");
}
Y_UNIT_TEST(TestLiterals) {
auto s = "123"_sb;
static_assert(std::is_same_v<decltype(s), TStringBuf>);
UNIT_ASSERT_VALUES_EQUAL(s, TStringBuf("123"));
}
} // Y_UNIT_TEST_SUITE(TStrBufTest)
Y_UNIT_TEST_SUITE(TWtrBufTest) {
Y_UNIT_TEST(TestConstExpr) {
static constexpr TWtringBuf str1(u"qwe\0rty", 7);
static constexpr TWtringBuf str2(str1.data(), str1.size());
static constexpr TWtringBuf str3 = u"qwe\0rty"sv;
UNIT_ASSERT_VALUES_EQUAL(str1.size(), 7);
UNIT_ASSERT_VALUES_EQUAL(str1, str2);
UNIT_ASSERT_VALUES_EQUAL(str2, str3);
UNIT_ASSERT_VALUES_EQUAL(str1, str3);
static constexpr std::u16string_view view1(str1);
UNIT_ASSERT_VALUES_EQUAL(str1, view1);
static_assert(str1.data() == view1.data());
static_assert(str1.size() == view1.size());
static constexpr TWtringBuf str4(view1);
UNIT_ASSERT_VALUES_EQUAL(str1, str4);
static_assert(str1.data() == str4.data());
static_assert(str1.size() == str4.size());
static_assert(str1 == str2);
}
} // Y_UNIT_TEST_SUITE(TWtrBufTest)
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