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#include "join.h"
#include "subst.h"
#include <string>
#include <library/cpp/testing/unittest/registar.h>
Y_UNIT_TEST_SUITE(TStringSubst) {
static const size_t MIN_FROM_CTX = 4;
static const TVector<TString> ALL_FROM{TString("F"), TString("FF")};
static const TVector<TString> ALL_TO{TString(""), TString("T"), TString("TT"), TString("TTT")};
static void AssertSubstGlobal(const TString& sFrom, const TString& sTo, const TString& from, const TString& to, const size_t fromPos, const size_t numSubst) {
TString s = sFrom;
size_t res = SubstGlobal(s, from, to, fromPos);
UNIT_ASSERT_VALUES_EQUAL_C(res, numSubst,
TStringBuilder() << "numSubst=" << numSubst << ", fromPos=" << fromPos << ", " << sFrom << " -> " << sTo);
if (numSubst) {
UNIT_ASSERT_STRINGS_EQUAL_C(s, sTo,
TStringBuilder() << "numSubst=" << numSubst << ", fromPos=" << fromPos << ", " << sFrom << " -> " << sTo);
} else {
// ensure s didn't trigger copy-on-write
UNIT_ASSERT_VALUES_EQUAL_C(s.c_str(), sFrom.c_str(),
TStringBuilder() << "numSubst=" << numSubst << ", fromPos=" << fromPos << ", " << sFrom << " -> " << sTo);
}
}
Y_UNIT_TEST(TestSubstGlobalNoSubstA) {
for (const auto& from : ALL_FROM) {
const size_t fromSz = from.size();
const size_t minSz = fromSz;
const size_t maxSz = fromSz + MIN_FROM_CTX;
for (size_t sz = minSz; sz <= maxSz; ++sz) {
for (size_t fromPos = 0; fromPos < sz; ++fromPos) {
TString s{sz, '.'};
for (const auto& to : ALL_TO) {
AssertSubstGlobal(s, s, from, to, fromPos, 0);
}
}
}
}
}
Y_UNIT_TEST(TestSubstGlobalNoSubstB) {
for (const auto& from : ALL_FROM) {
const size_t fromSz = from.size();
const size_t minSz = fromSz;
const size_t maxSz = fromSz + MIN_FROM_CTX;
for (size_t sz = minSz; sz <= maxSz; ++sz) {
for (size_t fromPos = 0; fromPos <= sz - fromSz; ++fromPos) {
for (size_t fromBeg = 0; fromBeg < fromPos; ++fromBeg) {
const auto parts = {
TString{fromBeg, '.'},
TString{sz - fromSz - fromBeg, '.'}};
TString s = JoinSeq(from, parts);
for (const auto& to : ALL_TO) {
AssertSubstGlobal(s, s, from, to, fromPos, 0);
}
}
}
}
}
}
static void DoTestSubstGlobal(TVector<TString>& parts, const size_t minBeg, const size_t sz,
const TString& from, const size_t fromPos, const size_t numSubst) {
const size_t numLeft = numSubst - parts.size();
for (size_t fromBeg = minBeg; fromBeg <= sz - numLeft * from.size(); ++fromBeg) {
if (parts.empty()) {
parts.emplace_back(fromBeg, '.');
} else {
parts.emplace_back(fromBeg - minBeg, '.');
}
if (numLeft == 1) {
parts.emplace_back(sz - fromBeg - from.size(), '.');
TString sFrom = JoinSeq(from, parts);
UNIT_ASSERT_VALUES_EQUAL_C(sFrom.size(), sz, sFrom);
for (const auto& to : ALL_TO) {
TString sTo = JoinSeq(to, parts);
AssertSubstGlobal(sFrom, sTo, from, to, fromPos, numSubst);
}
parts.pop_back();
} else {
DoTestSubstGlobal(parts, fromBeg + from.size(), sz, from, fromPos, numSubst);
}
parts.pop_back();
}
}
static void DoTestSubstGlobal(size_t numSubst) {
TVector<TString> parts;
for (const auto& from : ALL_FROM) {
const size_t fromSz = from.size();
const size_t minSz = numSubst * fromSz;
const size_t maxSz = numSubst * (fromSz + MIN_FROM_CTX);
for (size_t sz = minSz; sz <= maxSz; ++sz) {
const size_t maxPos = sz - numSubst * fromSz;
for (size_t fromPos = 0; fromPos <= maxPos; ++fromPos) {
DoTestSubstGlobal(parts, fromPos, sz, from, fromPos, numSubst);
}
}
}
}
Y_UNIT_TEST(TestSubstGlobalSubst1) {
DoTestSubstGlobal(1);
}
Y_UNIT_TEST(TestSubstGlobalSubst2) {
DoTestSubstGlobal(2);
}
Y_UNIT_TEST(TestSubstGlobalSubst3) {
DoTestSubstGlobal(3);
}
Y_UNIT_TEST(TestSubstGlobalSubst4) {
DoTestSubstGlobal(4);
}
Y_UNIT_TEST(TestSubstGlobalOld) {
TString s;
s = "aaa";
SubstGlobal(s, "a", "bb");
UNIT_ASSERT_EQUAL(s, TString("bbbbbb"));
s = "aaa";
SubstGlobal(s, "a", "b");
UNIT_ASSERT_EQUAL(s, TString("bbb"));
s = "aaa";
SubstGlobal(s, "a", "");
UNIT_ASSERT_EQUAL(s, TString(""));
s = "abcdefbcbcdfb";
SubstGlobal(s, "bc", "bbc", 2);
UNIT_ASSERT_EQUAL(s, TString("abcdefbbcbbcdfb"));
s = "Москва ~ Париж";
SubstGlobal(s, " ~ ", " ");
UNIT_ASSERT_EQUAL(s, TString("Москва Париж"));
}
Y_UNIT_TEST(TestSubstGlobalOldRet) {
const TString s1 = "aaa";
const TString s2 = SubstGlobalCopy(s1, "a", "bb");
UNIT_ASSERT_EQUAL(s2, TString("bbbbbb"));
const TString s3 = "aaa";
const TString s4 = SubstGlobalCopy(s3, "a", "b");
UNIT_ASSERT_EQUAL(s4, TString("bbb"));
const TString s5 = "aaa";
const TString s6 = SubstGlobalCopy(s5, "a", "");
UNIT_ASSERT_EQUAL(s6, TString(""));
const TString s7 = "abcdefbcbcdfb";
const TString s8 = SubstGlobalCopy(s7, "bc", "bbc", 2);
UNIT_ASSERT_EQUAL(s8, TString("abcdefbbcbbcdfb"));
const TString s9 = "Москва ~ Париж";
const TString s10 = SubstGlobalCopy(s9, " ~ ", " ");
UNIT_ASSERT_EQUAL(s10, TString("Москва Париж"));
}
Y_UNIT_TEST(TestSubstCharGlobal) {
TUtf16String w = u"abcdabcd";
SubstGlobal(w, wchar16('b'), wchar16('B'), 3);
UNIT_ASSERT_EQUAL(w, u"abcdaBcd");
TString s = "aaa";
SubstGlobal(s, 'a', 'b', 1);
UNIT_ASSERT_EQUAL(s, TString("abb"));
}
Y_UNIT_TEST(TestSubstCharGlobalRet) {
const TUtf16String w1 = u"abcdabcd";
const TUtf16String w2 = SubstGlobalCopy(w1, wchar16('b'), wchar16('B'), 3);
UNIT_ASSERT_EQUAL(w2, u"abcdaBcd");
const TString s1 = "aaa";
const TString s2 = SubstGlobalCopy(s1, 'a', 'b', 1);
UNIT_ASSERT_EQUAL(s2, TString("abb"));
}
Y_UNIT_TEST(TestSubstStdString) {
std::string s = "aaa";
SubstGlobal(s, "a", "b", 1);
UNIT_ASSERT_EQUAL(s, "abb");
}
Y_UNIT_TEST(TestSubstStdStringRet) {
const std::string s1 = "aaa";
const std::string s2 = SubstGlobalCopy(s1, "a", "b", 1);
UNIT_ASSERT_EQUAL(s2, "abb");
}
Y_UNIT_TEST(TestSubstGlobalChar) {
{
const TString s = "a";
const TString st = "b";
TString ss = s;
UNIT_ASSERT_VALUES_EQUAL(s.size(), SubstGlobal(ss, 'a', 'b'));
UNIT_ASSERT_VALUES_EQUAL(st, ss);
}
{
const TString s = "aa";
const TString st = "bb";
TString ss = s;
UNIT_ASSERT_VALUES_EQUAL(s.size(), SubstGlobal(ss, 'a', 'b'));
UNIT_ASSERT_VALUES_EQUAL(st, ss);
}
{
const TString s = "aaa";
const TString st = "bbb";
TString ss = s;
UNIT_ASSERT_VALUES_EQUAL(s.size(), SubstGlobal(ss, 'a', 'b'));
UNIT_ASSERT_VALUES_EQUAL(st, ss);
}
{
const TString s = "aaaa";
const TString st = "bbbb";
TString ss = s;
UNIT_ASSERT_VALUES_EQUAL(s.size(), SubstGlobal(ss, 'a', 'b'));
UNIT_ASSERT_VALUES_EQUAL(st, ss);
}
{
const TString s = "aaaaa";
const TString st = "bbbbb";
TString ss = s;
UNIT_ASSERT_VALUES_EQUAL(s.size(), SubstGlobal(ss, 'a', 'b'));
UNIT_ASSERT_VALUES_EQUAL(st, ss);
}
{
const TString s = "aaaaaa";
const TString st = "bbbbbb";
TString ss = s;
UNIT_ASSERT_VALUES_EQUAL(s.size(), SubstGlobal(ss, 'a', 'b'));
UNIT_ASSERT_VALUES_EQUAL(st, ss);
}
{
const TString s = "aaaaaaa";
const TString st = "bbbbbbb";
TString ss = s;
UNIT_ASSERT_VALUES_EQUAL(s.size(), SubstGlobal(ss, 'a', 'b'));
UNIT_ASSERT_VALUES_EQUAL(st, ss);
}
{
const TString s = "aaaaaaaa";
const TString st = "bbbbbbbb";
TString ss = s;
UNIT_ASSERT_VALUES_EQUAL(s.size(), SubstGlobal(ss, 'a', 'b'));
UNIT_ASSERT_VALUES_EQUAL(st, ss);
}
}
} // Y_UNIT_TEST_SUITE(TStringSubst)
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