Function DoTestSubstGlobal

util/string/subst_ut.cpp:64–89

    }

    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;