green_crdt/version3/test2.cpp

702 lines
15 KiB
C++

#include <green_crdt/v3/text_document.hpp>
#include <numeric>
#include <optional>
#include <random>
#include <iostream>
#include <cassert>
#include <variant>
// single letter agent, for testing only
using Agent = std::string;
using Doc = GreenCRDT::V3::TextDocument<Agent>;
using Op = Doc::Op;
using ListType = Doc::ListType;
// maybe switch it up?
//using Rng = std::minstd_rand;
//using Rng = std::mt19937;
using Rng = std::ranlux24_base;
// 10*7 -> 70 permutations , ggwp
// | 1add | 1del | 1rep | 2add | 2del | 2rep | random add | random del | random rep | random
// empty doc | | 0 | 0 | | 0 | 0 | x | 0 | 0 |
// before 1 char | | | | | | | | | |
// after 1 char | | | | | | | | | |
// before 2 char | | | | | | | | | |
// in 2 char | | | | | | | | | |
// after 2 char | | | | | | | | | |
// random | | | | | | | | | |
static const std::vector<char> random_chars {
'a', 'b', 'c', 'd', 'e',
'f', 'g', 'h', 'i', 'j',
'k', 'l', 'm', 'n', 'o',
'p', 'q', 'r', 's', 't',
'u', 'v', 'w', 'x', 'y',
'z',
'A', 'B', 'C', 'D', 'E',
'F', 'G', 'H', 'I', 'J',
'K', 'L', 'M', 'N', 'O',
'P', 'Q', 'R', 'S', 'T',
'U', 'V', 'W', 'X', 'Y',
'Z',
};
std::ostream& operator<<(std::ostream& out, const std::optional<ListType::ListID>& id) {
if (id.has_value()) {
out << id.value().id << "-" << id.value().seq;
} else {
out << "null";
}
return out;
}
std::ostream& operator<<(std::ostream& out, const Doc::OpAdd& op) {
out
<< "{ id:" << op.id.id
<< "-" << op.id.seq
<< ", v:" << op.value
<< ", l:" << op.parent_left
<< ", r:" << op.parent_right
<< " }"
;
return out;
}
// genX() changes doc, uses local agent
Op genAdd(Rng& rng, Doc& doc) {
Doc::OpAdd op {
{doc.local_actor, 0u},
std::nullopt,
std::nullopt,
random_chars[rng()%random_chars.size()]
};
// TODO: move to list
// make sure actor index exists
if (!doc.state.findActor(doc.local_actor).has_value()) {
doc.state._actors.push_back(doc.local_actor);
}
// first id is 0
if (doc.state._last_seen_seq.count(doc.state.findActor(doc.local_actor).value())) {
op.id.seq = doc.state._last_seen_seq[doc.state.findActor(doc.local_actor).value()] + 1;
}
if (!doc.state.empty()) {
// gen parents
size_t li = rng()%(1+doc.state.size());
if (li != doc.state.size()) { // nullopt
op.parent_left = doc.state.getID(li);
}
//size_t r_range = 1+doc.state.list.size();
//if (li != doc.state.list.size()) {
//r_range -= li+1;
//}
//size_t ri = rng()%r_range;
//if (li != doc.state.list.size()) {
//ri += li+1;
//}
//if (ri != doc.state.list.size()) { // nullopt
//op.parent_right = doc.state.list[li].id;
//}
if (op.parent_left.has_value()) {
if (doc.state.size() != li + 1) { // left is not last
op.parent_right = doc.state.getID(li+1);
}
} else {
// left is before first, so right is first
op.parent_right = doc.state.getID(0);
}
} // else first char, both nullopt
//std::cout << "op: " << op << "\n";
{
bool r = doc.state.add(op.id, op.value, op.parent_left, op.parent_right);
if (!r) {
std::cout << "op: " << op << "\n";
}
assert(r);
}
return op;
}
Op genDel(Rng& rng, Doc& doc) {
if (doc.state.getDocSize() == 0) {
assert(false && "empty doc");
return {}; // empty
}
doc.state.verify();
Doc::OpDel op{};
// search for undelted entry
size_t idx = rng()%doc.state.size();
bool found = false;
for (size_t attempts = 0; attempts <= doc.state.size(); attempts++) {
//if (doc.state.list[idx].value.has_value()) {
if (doc.state.getValue(idx).has_value()) {
op.id = doc.state.getID(idx);
found = true;
break;
}
idx = (idx+1) % doc.state.size();
}
assert(found);
{
auto size_pre = doc.state.getDocSize();
bool r = doc.state.del(op.id);
assert(r);
assert(size_pre-1 == doc.state.getDocSize());
assert(doc.state.verify());
}
return op;
}
//genRep()
//genAddContRange()
//genDelContRange()
//genRepContRange()
//genRand()
//genRandRanges()
std::vector<Op> genRandAll(Rng& rng, Doc& doc) {
switch (rng() % 1) {
case 0:
return {genAdd(rng, doc)};
}
return {};
}
void testEmptyDocAdds(size_t seed) {
Rng rng(seed);
Doc doc; // empty
doc.local_actor = 'A';
std::string changed_text;
{
// for modifying
Doc doctmp = doc;
const size_t loop_count = (rng() % 55)+1;
for (size_t i = 0; i < loop_count; i++) {
genAdd(rng, doctmp);
}
changed_text = doctmp.getText();
}
assert(doc.getText() != changed_text);
std::cout << "changed_text: " << changed_text << "\n";
Doc otherdoc = doc;
assert(doc.getText().size() == doc.state.getDocSize());
const auto merge_ops = doc.merge(changed_text);
assert(doc.getText().size() == doc.state.getDocSize());
assert(doc.getText() == changed_text);
assert(otherdoc.apply(merge_ops));
assert(doc.getText() == otherdoc.getText());
}
void test1CharDocAdds(size_t seed) {
Rng rng(seed);
Doc doc;
doc.local_actor = 'A';
doc.addText(std::nullopt, std::nullopt, "0");
assert(doc.getText() == "0");
std::string changed_text;
{
// for modifying
Doc doctmp = doc;
const size_t loop_count = (rng() % 4)+1;
for (size_t i = 0; i < loop_count; i++) {
genAdd(rng, doctmp);
}
changed_text = doctmp.getText();
}
assert(doc.getText() != changed_text);
std::cout << "text: " << doc.getText() << "\n";
std::cout << "changed_text: " << changed_text << "\n";
Doc otherdoc = doc;
assert(doc.getText().size() == doc.state.getDocSize());
const auto merge_ops = doc.merge(changed_text);
assert(doc.getText().size() == doc.state.getDocSize());
std::cout << "text after merge: " << doc.getText() << "\n";
assert(doc.getText() == changed_text);
assert(otherdoc.apply(merge_ops));
assert(doc.getText() == otherdoc.getText());
}
void test1CharDocDels(size_t seed) {
Rng rng(seed);
Doc doc;
doc.local_actor = 'A';
assert(doc.getText().size() == doc.state.getDocSize());
doc.addText(std::nullopt, std::nullopt, "0123");
assert(doc.getText().size() == doc.state.getDocSize());
assert(doc.getText() == "0123");
std::string changed_text;
{
// for modifying
Doc doctmp = doc;
const size_t loop_count = (rng() % 4)+1;
std::cout << "going to delete: " << loop_count << "\n";
for (size_t i = 0; i < loop_count; i++) {
genDel(rng, doctmp);
}
changed_text = doctmp.getText();
assert(doctmp.getText().size() == doctmp.state.getDocSize());
if (loop_count == doc.state.getDocSize()) {
assert(doctmp.state.getDocSize() == 0);
assert(changed_text.size() == 0);
}
}
assert(doc.getText() != changed_text);
std::cout << "text: " << doc.getText() << "\n";
std::cout << "changed_text: " << changed_text << "\n";
Doc otherdoc = doc;
assert(doc.getText().size() == doc.state.getDocSize());
const auto merge_ops = doc.merge(changed_text);
assert(doc.getText().size() == doc.state.getDocSize());
std::cout << "text after merge: " << doc.getText() << "\n";
assert(doc.getText() == changed_text);
assert(otherdoc.apply(merge_ops));
assert(doc.getText() == otherdoc.getText());
}
void test2CharDocAdds(size_t seed) {
Rng rng(seed);
Doc doc;
doc.local_actor = 'A';
assert(doc.getText().size() == doc.state.getDocSize());
doc.addText(std::nullopt, std::nullopt, "012345");
assert(doc.getText().size() == doc.state.getDocSize());
assert(doc.getText() == "012345");
std::string changed_text;
{
// for modifying
Doc doctmp = doc;
const size_t loop_count = (rng() % 6)+1;
for (size_t i = 0; i < loop_count; i++) {
genAdd(rng, doctmp);
}
changed_text = doctmp.getText();
}
assert(doc.getText() != changed_text);
std::cout << "text: " << doc.getText() << "\n";
std::cout << "changed_text: " << changed_text << "\n";
Doc otherdoc = doc;
assert(doc.getText().size() == doc.state.getDocSize());
const auto merge_ops = doc.merge(changed_text);
assert(doc.getText().size() == doc.state.getDocSize());
std::cout << "text after merge: " << doc.getText() << "\n";
assert(doc.getText() == changed_text);
assert(otherdoc.apply(merge_ops));
assert(doc.getText() == otherdoc.getText());
}
void testChange1(size_t seed) {
Rng rng(seed);
Doc doc;
doc.local_actor = 'A';
assert(doc.getText().size() == doc.state.getDocSize());
doc.addText(std::nullopt, std::nullopt, "012345");
assert(doc.getText().size() == doc.state.getDocSize());
assert(doc.getText() == "012345");
std::string changed_text;
{
// for modifying
Doc doctmp = doc;
{ // dels
const size_t loop_count = (rng() % 6)+1;
for (size_t i = 0; i < loop_count; i++) {
genDel(rng, doctmp);
}
}
{ // adds
const size_t loop_count = (rng() % 6)+1;
for (size_t i = 0; i < loop_count; i++) {
genAdd(rng, doctmp);
}
}
changed_text = doctmp.getText();
}
assert(doc.getText() != changed_text);
std::cout << "text: " << doc.getText() << "\n";
std::cout << "changed_text: " << changed_text << "\n";
Doc otherdoc = doc;
assert(doc.getText().size() == doc.state.getDocSize());
const auto merge_ops = doc.merge(changed_text);
assert(doc.getText().size() == doc.state.getDocSize());
std::cout << "text after merge: " << doc.getText() << "\n";
assert(doc.getText() == changed_text);
assert(otherdoc.apply(merge_ops));
assert(doc.getText() == otherdoc.getText());
}
void testBugSame(void) {
Doc doc;
doc.local_actor = 'A';
std::string_view new_text1{"a"};
doc.merge(new_text1);
assert(doc.getText() == new_text1);
std::string_view new_text2{"aa"};
doc.merge(new_text2);
assert(doc.getText() == new_text2);
}
void testBugDoubleDel(void) {
Doc doc;
doc.local_actor = 'A';
{
std::string_view new_text{"a"};
const auto ops = doc.merge(new_text);
assert(doc.getText() == new_text);
assert(ops.size() == 1);
}
{
std::string_view new_text{""};
const auto ops = doc.merge(new_text);
assert(doc.getText() == new_text);
assert(ops.size() == 1);
assert(std::holds_alternative<Doc::OpDel>(ops.front()));
assert(std::get<Doc::OpDel>(ops.front()).id.seq == 0);
}
{
std::string_view new_text{""};
const auto ops = doc.merge(new_text);
assert(doc.getText() == new_text);
assert(ops.size() == 0);
}
}
void testBugSameDel(void) {
Doc doc;
doc.local_actor = 'A';
{
std::string_view new_text{"a"};
const auto ops = doc.merge(new_text);
assert(doc.getText() == new_text);
assert(ops.size() == 1);
}
{
std::string_view new_text{"aa"};
const auto ops = doc.merge(new_text);
assert(doc.getText() == new_text);
assert(ops.size() == 1);
}
{
std::string_view new_text{"a"};
const auto ops = doc.merge(new_text);
assert(doc.getText() == new_text);
assert(ops.size() == 1);
}
}
void testBugSameDel2(void) {
Doc doc;
doc.local_actor = 'A';
{
std::string_view new_text{"a"};
const auto ops = doc.merge(new_text);
assert(doc.getText() == new_text);
assert(ops.size() == 1);
}
{
std::string_view new_text{"aa"};
const auto ops = doc.merge(new_text);
assert(doc.getText() == new_text);
assert(ops.size() == 1);
}
{
std::string_view new_text{"aaa"};
const auto ops = doc.merge(new_text);
assert(doc.getText() == new_text);
assert(ops.size() == 1);
}
{
std::string_view new_text{"aa"};
const auto ops = doc.merge(new_text);
assert(doc.getText() == new_text);
assert(ops.size() == 1);
}
{
std::string_view new_text{"a"};
const auto ops = doc.merge(new_text);
assert(doc.getText() == new_text);
assert(ops.size() == 1);
}
}
void testMulti1(void) {
Doc docA;
docA.local_actor = 'A';
Doc docB;
docB.local_actor = 'B';
// state A
{
std::string_view new_text{"iiiiiii"};
const auto ops = docA.merge(new_text);
assert(docA.getText() == new_text);
assert(docB.apply(ops));
assert(docB.getText() == new_text);
assert(docB.state.getDocSize() == docA.state.getDocSize());
assert(docB.state.size() == docA.state.size());
}
// now B inserts b
{
std::string_view new_text{"iiibiiii"};
const auto ops = docB.merge(new_text);
assert(docB.getText() == new_text);
assert(ops.size() == 1); // 1 new inserted char, nothing to delete
assert(docA.apply(ops));
assert(docA.getText() == new_text);
}
}
void testPaste1(void) {
Doc docA;
docA.local_actor = 'A';
{
std::string_view new_text{"iiiiiii"};
const auto ops = docA.merge(new_text);
assert(ops.size() == 7);
assert(docA.getText() == new_text);
}
{
std::string_view new_text{"iiiiiii\n"};
const auto ops = docA.merge(new_text);
assert(ops.size() == 1);
assert(docA.getText() == new_text);
}
{
std::string_view new_text{"iiiiiii\niiiiiii"};
const auto ops = docA.merge(new_text);
assert(ops.size() == 7);
assert(docA.getText() == new_text);
}
}
void testPaste2(void) {
Doc docA;
docA.local_actor = 'A';
{
std::string_view new_text{"aiiiiib"};
const auto ops = docA.merge(new_text);
assert(ops.size() == 7);
assert(docA.getText() == new_text);
}
{
std::string_view new_text{"aiiiiib\n"};
const auto ops = docA.merge(new_text);
assert(ops.size() == 1);
assert(docA.getText() == new_text);
}
{
std::string_view new_text{"aiiiiib\naiiiiib"};
const auto ops = docA.merge(new_text);
assert(ops.size() == 7);
assert(docA.getText() == new_text);
}
}
int main(void) {
const size_t loops = 1'000;
{
std::cout << "testEmptyDocAdds:\n";
for (size_t i = 0; i < loops; i++) {
std::cout << "i " << i << "\n";
testEmptyDocAdds(1337+i);
std::cout << std::string(40, '-') << "\n";
}
}
std::cout << std::string(40, '=') << "\n";
{
std::cout << "test1CharDocAdds:\n";
for (size_t i = 0; i < loops; i++) {
std::cout << "i " << i << "\n";
test1CharDocAdds(1337+i);
std::cout << std::string(40, '-') << "\n";
}
}
std::cout << std::string(40, '=') << "\n";
{
std::cout << "test1CharDocDels:\n";
for (size_t i = 0; i < loops; i++) {
std::cout << "i " << i << "\n";
test1CharDocDels(1337+i);
std::cout << std::string(40, '-') << "\n";
}
}
std::cout << std::string(40, '=') << "\n";
{
std::cout << "test2CharDocAdds:\n";
for (size_t i = 0; i < loops; i++) {
std::cout << "i " << i << "\n";
test2CharDocAdds(1337+i);
std::cout << std::string(40, '-') << "\n";
}
}
std::cout << std::string(40, '=') << "\n";
{
std::cout << "testChange1:\n";
for (size_t i = 0; i < loops; i++) {
std::cout << "i " << i << "\n";
testChange1(1337+i);
std::cout << std::string(40, '-') << "\n";
}
}
std::cout << std::string(40, '=') << "\n";
{
std::cout << "testBugSame:\n";
testBugSame();
}
std::cout << std::string(40, '=') << "\n";
{
std::cout << "testBugDoubleDel:\n";
testBugDoubleDel();
}
std::cout << std::string(40, '=') << "\n";
{
std::cout << "testBugSameDel:\n";
testBugSameDel();
}
std::cout << std::string(40, '=') << "\n";
{
std::cout << "testBugSameDel2:\n";
testBugSameDel2();
}
std::cout << std::string(40, '=') << "\n";
{
std::cout << "testMulti1:\n";
testMulti1();
}
std::cout << std::string(40, '=') << "\n";
{
std::cout << "testPaste1:\n";
testPaste1();
}
std::cout << std::string(40, '=') << "\n";
{
std::cout << "testPaste2:\n";
testPaste2();
}
return 0;
}