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llama.cpp/tests/test-chat-parser.cpp
Aldehir Rojas 2c301e91ab common : handle unicode during partial json parsing (#16526)
* common : handle unicode during partial json parsing

* common : set missing `ensure_ascii = true` during json dump
2025-10-12 16:18:47 +03:00

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// Tests chat handling, including grammar generation and parsing for tool calling, for various templates.
//
// Also acts as a CLI to generate a Markdown summary of the formats of Jinja templates,
// e.g. given Minja (http://github.com/google/minja) checked out in parent dir:
//
// cmake -B build && cmake --build build --parallel && ./build/bin/test-chat ../minja/build/tests/*.jinja 2>/dev/null
//
#include <exception>
#include <iostream>
#include <string>
#include "chat-parser.h"
#include "common.h"
#include "log.h"
#include "regex-partial.h"
template <class T>
static void assert_equals(const std::string_view label, const T & expected, const T & actual) {
if (expected != actual) {
std::cerr << label << std::endl;
std::cerr << "Expected: " << expected << std::endl;
std::cerr << "Actual: " << actual << std::endl;
std::cerr << std::flush;
throw std::runtime_error("Test failed");
}
}
template <class T>
static void assert_equals(const T & expected, const T & actual) {
assert_equals("", expected, actual);
}
static void assert_equals(const char * expected, const std::string & actual) {
return assert_equals<std::string>(expected, actual);
}
static void assert_throws(const std::function<void()> & fn, const std::string & expected_exception_pattern = "") {
try {
fn();
} catch (const std::exception & e) {
if (expected_exception_pattern.empty()) {
return;
}
std::regex expected_exception_regex(expected_exception_pattern);
std::string actual_message = e.what();
if (std::regex_search(actual_message, expected_exception_regex)) {
return;
}
throw std::runtime_error("Exception doesn't match expected pattern: " + actual_message + " (pattern: " + expected_exception_pattern + ")");
throw std::runtime_error("Exception of unexpected type: " + std::string(e.what()));
}
throw std::runtime_error("Exception was expected but not thrown");
}
static void test_reasoning() {
//common_log_set_verbosity_thold(LOG_DEFAULT_DEBUG);
{
common_chat_msg_parser builder("<tnk>Cogito</tnk>Ergo sum", /* is_partial= */ false, {
/* .format = */ COMMON_CHAT_FORMAT_CONTENT_ONLY,
/* .reasoning_format = */ COMMON_REASONING_FORMAT_NONE,
/* .reasoning_in_content = */ false,
/* .thinking_forced_open = */ false,
});
assert_equals(false, builder.try_parse_reasoning("<tnk>", "</tnk>"));
assert_equals("<tnk>Cogito</tnk>Ergo sum", builder.consume_rest());
}
{
common_chat_msg_parser builder("<tnk>Cogito</tnk>Ergo sum", /* is_partial= */ false, {
/* .format = */ COMMON_CHAT_FORMAT_CONTENT_ONLY,
/* .reasoning_format = */ COMMON_REASONING_FORMAT_DEEPSEEK,
/* .reasoning_in_content = */ false,
/* .thinking_forced_open = */ false,
});
assert_equals(true, builder.try_parse_reasoning("<tnk>", "</tnk>"));
assert_equals(std::string("Cogito"), builder.result().reasoning_content);
assert_equals("Ergo sum", builder.consume_rest());
}
{
common_chat_msg_parser builder("Cogito</tnk>Ergo sum", /* is_partial= */ false, {
/* .format = */ COMMON_CHAT_FORMAT_CONTENT_ONLY,
/* .reasoning_format = */ COMMON_REASONING_FORMAT_NONE,
/* .reasoning_in_content = */ false,
/* .thinking_forced_open = */ false,
});
assert_equals(false, builder.try_parse_reasoning("<tnk>", "</tnk>"));
assert_equals("Cogito</tnk>Ergo sum", builder.consume_rest());
}
{
common_chat_msg_parser builder("Cogito</tnk>Ergo sum", /* is_partial= */ false, {
/* .format = */ COMMON_CHAT_FORMAT_CONTENT_ONLY,
/* .reasoning_format = */ COMMON_REASONING_FORMAT_DEEPSEEK,
/* .reasoning_in_content = */ false,
/* .thinking_forced_open = */ true,
});
assert_equals(true, builder.try_parse_reasoning("<tnk>", "</tnk>"));
assert_equals(std::string("Cogito"), builder.result().reasoning_content);
assert_equals("Ergo sum", builder.consume_rest());
}
{
common_chat_msg_parser builder("Cogito</tnk>Ergo sum", /* is_partial= */ false, {
/* .format = */ COMMON_CHAT_FORMAT_CONTENT_ONLY,
/* .reasoning_format = */ COMMON_REASONING_FORMAT_DEEPSEEK,
/* .reasoning_in_content = */ true,
/* .thinking_forced_open = */ true,
});
assert_equals(true, builder.try_parse_reasoning("<tnk>", "</tnk>"));
assert_equals("<think>Cogito</think>", builder.result().content);
assert_equals("Ergo sum", builder.consume_rest());
}
{
const std::string variant("content_only_inline_think");
common_chat_syntax syntax = {
/* .format = */ COMMON_CHAT_FORMAT_CONTENT_ONLY,
/* .reasoning_format = */ COMMON_REASONING_FORMAT_DEEPSEEK,
/* .reasoning_in_content = */ false,
/* .thinking_forced_open = */ false,
/* .parse_tool_calls = */ false,
};
const std::string input = "<think>Pense</think>Bonjour";
auto msg = common_chat_parse(input, false, syntax);
assert_equals(variant, std::string("Pense"), msg.reasoning_content);
assert_equals(variant, std::string("Bonjour"), msg.content);
}
{
const std::string variant("llama_3_inline_think");
common_chat_syntax syntax = {
/* .format = */ COMMON_CHAT_FORMAT_LLAMA_3_X,
/* .reasoning_format = */ COMMON_REASONING_FORMAT_DEEPSEEK,
/* .reasoning_in_content = */ false,
/* .thinking_forced_open = */ false,
/* .parse_tool_calls = */ false,
};
const std::string input = "<think>Plan</think>Réponse";
auto msg = common_chat_parse(input, false, syntax);
assert_equals(variant, std::string("Plan"), msg.reasoning_content);
assert_equals(variant, std::string("Réponse"), msg.content);
}
// Test DeepSeek V3.1 parsing - reasoning content followed by "</think>" and then regular content
{
common_chat_syntax syntax = {
/* .format = */ COMMON_CHAT_FORMAT_DEEPSEEK_V3_1,
/* .reasoning_format = */ COMMON_REASONING_FORMAT_DEEPSEEK,
/* .reasoning_in_content = */ false,
/* .thinking_forced_open = */ true,
/* .parse_tool_calls = */ true,
};
const std::string variant("deepseek_v3_1_reasoning_format_deepseek");
common_chat_msg_parser builder("REASONING</think>ok", /* is_partial= */ false, syntax);
assert_equals(variant, true, builder.try_parse_reasoning("<think>", "</think>"));
assert_equals(variant, std::string("REASONING"), builder.result().reasoning_content);
assert_equals(variant, std::string("ok"), builder.consume_rest());
}
// Test DeepSeek V3.1 parsing - reasoning_format none - reasoning content followed by "</think>" and then regular content
{
common_chat_syntax syntax = {
/* .format = */ COMMON_CHAT_FORMAT_DEEPSEEK_V3_1,
/* .reasoning_format = */ COMMON_REASONING_FORMAT_NONE,
/* .reasoning_in_content = */ false,
/* .thinking_forced_open = */ true,
/* .parse_tool_calls = */ true,
};
const std::string variant("deepseek_v3_1_reasoning_format_none");
const std::string input = "REASONING</think>ok";
auto msg = common_chat_parse(input, false, syntax);
assert_equals(variant, std::string("REASONING</think>ok"), msg.content);
assert_equals(variant, std::string(""), msg.reasoning_content);
}
}
static void test_regex() {
auto test_throws = [](const std::string & input, const std::string & regex, const std::string & expected_exception_pattern = "") {
common_chat_msg_parser builder(input, /* is_partial= */ false, {});
assert_throws([&]() { builder.consume_regex(common_regex(regex)); }, expected_exception_pattern);
};
test_throws("Hello, world!", "abc", "^abc$");
test_throws("Hello, world!", "e", "^e$");
{
common_chat_msg_parser builder("Hello, world!", /* is_partial= */ false, {});
builder.consume_regex(common_regex("Hello"));
assert_equals(", world!", builder.consume_rest());
}
{
// When in non partial mode, we can say whether the regex was consumed or not.
common_chat_msg_parser builder("Hello,", /* is_partial= */ false, {});
assert_equals(false, builder.try_consume_regex(common_regex("Hello, world!")).has_value());
}
{
common_chat_msg_parser builder("Hello,", /* is_partial= */ false, {});
auto res = builder.try_consume_regex(common_regex("H(el)l(?:o, world!)?"));
assert_equals(true, res.has_value());
// Verify captures
assert_equals<size_t>(2, res->groups.size());
assert_equals("Hell", builder.str(res->groups[0]));
assert_equals("el", builder.str(res->groups[1]));
// Verify position is after the match
assert_equals<size_t>(4, builder.pos());
assert_equals("o,", builder.consume_rest());
}
{
// But in partial mode, we have a partial final match / can't decide, so we throw a partial exception.
common_chat_msg_parser builder("Hello,", /* is_partial= */ true, {});
assert_throws([&]() {
builder.try_consume_regex(common_regex("Hello, world!"));
}, "^Hello, world!$");
}
// Now regardless of the mode, we can tell these aren't a match.
for (const auto is_partial : {false, true}) {
common_chat_msg_parser builder("Hello,", is_partial, {});
assert_equals(false, builder.try_consume_regex(common_regex("a(b|c)(d|e)f")).has_value());
}
for (const auto is_partial : {false, true}) {
common_chat_msg_parser builder("Hello,", is_partial, {});
assert_equals(false, builder.try_consume_literal("Oh"));
}
}
const std::vector<std::string> barely_healable_jsons = {
"{",
"{\"",
"{\"\\",
"{\"n",
"{\"name\"",
"{\"name\":",
"{\"name\":\"",
"{\"name\":\"\\",
"{\"name\":\"python",
"{\"name\":\"python\\",
"{\",",
"{\":",
"{\"[",
"{\"]",
"{\"{",
"{\"}",
"{\"1",
"{\"name\":\",",
"{\"name\":\":",
"{\"name\":\"[",
"{\"name\":\"]",
"{\"name\":\"{",
"{\"name\":\"}",
"{\"name\":\"1",
};
static void test(const std::string & input, bool is_partial, const std::vector<std::vector<std::string>> & args_paths, const std::vector<std::vector<std::string>> & content_paths, const std::string & expected) {
common_chat_msg_parser builder(input, is_partial, {});
auto js = builder.try_consume_json_with_dumped_args(args_paths, content_paths);
assert_equals(true, js.has_value());
assert_equals(is_partial, js->is_partial);
assert_equals(expected, args_paths.size() == 1 && args_paths[0].empty() ? js->value.get<std::string>() : js->value.dump());
}
static void test_deepseek_v3_1_tool_calls() {
//common_log_set_verbosity_thold(LOG_DEFAULT_DEBUG);
// variant: happy path for when it works as the model card says it should
const std::string variant("simple");
common_chat_syntax syntax = {
/* .format = */ COMMON_CHAT_FORMAT_DEEPSEEK_V3_1,
/* .reasoning_format = */ COMMON_REASONING_FORMAT_DEEPSEEK,
/* .reasoning_in_content = */ false,
/* .thinking_forced_open = */ false,
/* .parse_tool_calls = */ true,
};
const std::string input = "<tool▁calls▁begin><tool▁call▁begin>get_time<tool▁sep>{\"city\": \"Tokyo\"}<tool▁call▁end><tool▁calls▁end>";
auto msg = common_chat_parse(input, false, syntax);
assert_equals<std::size_t>(variant, 1, msg.tool_calls.size());
assert_equals(variant, std::string("get_time"), msg.tool_calls[0].name);
// JSON arguments are dumped without spaces
assert_equals(variant, std::string("{\"city\":\"Tokyo\"}"), msg.tool_calls[0].arguments);
assert_equals(variant, std::string(""), msg.content);
assert_equals(variant, std::string(""), msg.reasoning_content);
// variant: simple + thinking open
{
common_chat_syntax syntax = {
/* .format = */ COMMON_CHAT_FORMAT_DEEPSEEK_V3_1,
/* .reasoning_format = */ COMMON_REASONING_FORMAT_DEEPSEEK,
/* .reasoning_in_content = */ false,
/* .thinking_forced_open = */ true,
/* .parse_tool_calls = */ true,
};
const std::string variant("simple_thinking");
const std::string in = "REASONING</think><tool▁calls▁begin><tool▁call▁begin>get_time<tool▁sep>{\"city\": \"Tokyo\"}<tool▁call▁end><tool▁calls▁end>";
auto m = common_chat_parse(in, false, syntax);
assert_equals<std::size_t>(variant, 1, m.tool_calls.size());
assert_equals(variant, std::string("get_time"), m.tool_calls[0].name);
assert_equals(variant, std::string("{\"city\":\"Tokyo\"}"), m.tool_calls[0].arguments);
assert_equals(variant, std::string(""), m.content);
assert_equals(variant, std::string("REASONING"), m.reasoning_content);
}
// variant: simple + multiple tool calls
{
common_chat_syntax syntax = {
/* .format = */ COMMON_CHAT_FORMAT_DEEPSEEK_V3_1,
/* .reasoning_format = */ COMMON_REASONING_FORMAT_DEEPSEEK,
/* .reasoning_in_content = */ false,
/* .thinking_forced_open = */ false,
/* .parse_tool_calls = */ true,
};
const std::string variant("simple_multiple_tool_calls");
const std::string in = "CONTENT<tool▁calls▁begin><tool▁call▁begin>get_time<tool▁sep>{\"city\": \"Paris\"}<tool▁call▁end><tool▁call▁begin>get_weather<tool▁sep>{\"city\": \"Paris\"}<tool▁call▁end><tool▁calls▁end>";
auto m = common_chat_parse(in, false, syntax);
assert_equals<std::size_t>(variant, 2, m.tool_calls.size());
assert_equals(variant, std::string("get_time"), m.tool_calls[0].name);
assert_equals(variant, std::string("{\"city\":\"Paris\"}"), m.tool_calls[0].arguments);
assert_equals(variant, std::string("get_weather"), m.tool_calls[1].name);
assert_equals(variant, std::string("{\"city\":\"Paris\"}"), m.tool_calls[1].arguments);
assert_equals(variant, std::string("CONTENT"), m.content);
assert_equals(variant, std::string(""), m.reasoning_content);
}
// variant: thinking forced open + tool call in reasoning content
{
common_chat_syntax syntax = {
/* .format = */ COMMON_CHAT_FORMAT_DEEPSEEK_V3_1,
/* .reasoning_format = */ COMMON_REASONING_FORMAT_DEEPSEEK,
/* .reasoning_in_content = */ false,
/* .thinking_forced_open = */ true,
/* .parse_tool_calls = */ true,
};
const std::string variant("thinking_forced_open_tool_call_in_reasoning");
const std::string in = "REASONING<tool▁calls▁begin><tool▁call▁begin>get_time2<tool▁sep>{\"city\": \"Tokyo2\"}<tool▁call▁end><tool▁calls▁end>REASONING</think><tool▁calls▁begin><tool▁call▁begin>get_time<tool▁sep>{\"city\": \"Tokyo\"}<tool▁call▁end><tool▁calls▁end>";
auto m = common_chat_parse(in, false, syntax);
assert_equals<std::size_t>(variant, 1, m.tool_calls.size());
assert_equals(variant, std::string("get_time"), m.tool_calls[0].name);
assert_equals(variant, std::string("{\"city\":\"Tokyo\"}"), m.tool_calls[0].arguments);
assert_equals(variant, std::string(""), m.content);
assert_equals(variant, std::string("REASONING<tool▁calls▁begin><tool▁call▁begin>get_time2<tool▁sep>{\"city\": \"Tokyo2\"}<tool▁call▁end><tool▁calls▁end>REASONING"), m.reasoning_content);
}
// variant: thinking forced open + tool call in reasoning content + no closing think + not partial
// This is a bit of a fine tuning issue on the model's part IMO. It really should not be attempting
// to make tool calls in reasoning content according to the model card, but it does sometimes, so
// add the reasoning content as regular content and parse the tool calls.
{
common_chat_syntax syntax = {
/* .format = */ COMMON_CHAT_FORMAT_DEEPSEEK_V3_1,
/* .reasoning_format = */ COMMON_REASONING_FORMAT_DEEPSEEK,
/* .reasoning_in_content = */ false,
/* .thinking_forced_open = */ true,
/* .parse_tool_calls = */ true,
};
const std::string variant("thinking_forced_open_tool_call_in_reasoning_no_closing_think_not_partial");
const std::string in = "REASONING<tool▁calls▁begin><tool▁call▁begin>get_time<tool▁sep>{\"city\": \"Tokyo\"}<tool▁call▁end><tool▁calls▁end>";
auto m = common_chat_parse(in, false, syntax);
assert_equals(variant, std::string("REASONING"), m.content);
assert_equals(variant, std::string(""), m.reasoning_content);
assert_equals<std::size_t>(variant, 1, m.tool_calls.size());
assert_equals(variant, std::string("get_time"), m.tool_calls[0].name);
assert_equals(variant, std::string("{\"city\":\"Tokyo\"}"), m.tool_calls[0].arguments);
}
// variant: thinking forced open + tool call in reasoning content + no closing think + partial
{
common_chat_syntax syntax = {
/* .format = */ COMMON_CHAT_FORMAT_DEEPSEEK_V3_1,
/* .reasoning_format = */ COMMON_REASONING_FORMAT_DEEPSEEK,
/* .reasoning_in_content = */ false,
/* .thinking_forced_open = */ true,
/* .parse_tool_calls = */ true,
};
const std::string variant("thinking_forced_open_tool_call_in_reasoning_no_closing_think_partial");
const std::string in = "REASONING<tool▁calls▁begin><tool▁call▁begin>get_time<tool▁sep>{\"city\": \"Tokyo\"}<tool▁call▁end><tool▁calls▁end>";
auto m = common_chat_parse(in, /* is_partial= */ true, syntax);
assert_equals(variant, std::string("REASONING<tool▁calls▁begin><tool▁call▁begin>get_time<tool▁sep>{\"city\": \"Tokyo\"}<tool▁call▁end><tool▁calls▁end>"), m.reasoning_content);
assert_equals(variant, std::string(""), m.content);
assert_equals<std::size_t>(variant, 0, m.tool_calls.size());
}
// variant: thinking not forced open + reasoning + regular content + no tool calls
{
common_chat_syntax syntax = {
/* .format = */ COMMON_CHAT_FORMAT_DEEPSEEK_V3_1,
/* .reasoning_format = */ COMMON_REASONING_FORMAT_DEEPSEEK,
/* .reasoning_in_content = */ false,
/* .thinking_forced_open = */ true,
/* .parse_tool_calls = */ true,
};
const std::string variant("thinking_forced_open_reasoning_regular_content_no_tool_calls");
const std::string in = "REASONING</think>CONTENT";
auto m = common_chat_parse(in, false, syntax);
assert_equals<std::size_t>(variant, 0, m.tool_calls.size());
assert_equals(variant, std::string("CONTENT"), m.content);
assert_equals(variant, std::string("REASONING"), m.reasoning_content);
}
// variant: thinking not forced open + missing reasoning + no tool calls
{
common_chat_syntax syntax = {
/* .format = */ COMMON_CHAT_FORMAT_DEEPSEEK_V3_1,
/* .reasoning_format = */ COMMON_REASONING_FORMAT_DEEPSEEK,
/* .reasoning_in_content = */ false,
/* .thinking_forced_open = */ false,
/* .parse_tool_calls = */ true,
};
const std::string variant("thinking_not_forced_open_missing_reasoning_no_tool_calls");
const std::string in = "CONTENT";
auto m = common_chat_parse(in, false, syntax);
assert_equals<std::size_t>(variant, 0, m.tool_calls.size());
assert_equals(variant, std::string("CONTENT"), m.content);
assert_equals(variant, std::string(""), m.reasoning_content);
}
}
static void test_with_args(const std::string & input, const std::string & expected, bool parse_as_partial = true, bool is_partial = true) {
common_chat_msg_parser builder(input, parse_as_partial, {});
auto js = builder.try_consume_json_with_dumped_args({{"args"}}, {});
assert_equals(true, js.has_value());
assert_equals(is_partial, js->is_partial);
assert_equals(expected, js->value.dump());
}
static void test_json_with_dumped_args_no_args() {
// Normal JSON, nothing to heal, nothing to dump
test("{\"name\": \"python\"}", false, {}, {}, "{\"name\":\"python\"}");
// Full json is args
test("{\"name\": \"python\"}", false, {{}}, {}, "{\"name\":\"python\"}");
// If the arguments are further down, don't heal partial content.
for (const auto & src : barely_healable_jsons) {
test(src, true, {{"arguments"}}, {}, "{}");
}
// But heal content that isn't partial.
test("{\"name\": \"python\"", true, {{"arguments"}}, {}, "{\"name\":\"python\"}");
}
static void test_json_with_dumped_args() {
// Partial content.
test("{\"content\": \"t", true, {}, {{"content"}}, "{\"content\":\"t\"}");
test("{\"content\": \"", true, {}, {{"content"}}, "{\"content\":\"\"}");
test("{\"content\": ", true, {}, {{"content"}}, "{}");
// If the entire JSON is the arguments, healing it them dumping it produces the same output as the input (just reformatted).
test("{\"name\": \"python", true, {{}}, {}, "{\"name\":\"python");
for (const auto & src : barely_healable_jsons) {
test(src, true, {{}}, {}, src);
}
// Full JSON w/ args
for (auto parse_as_partial : {true, false}) {
test_with_args(
R"({"name": "python", "args": {"arg1": 1}})",
R"({"name":"python","args":"{\"arg1\":1}"})",
parse_as_partial,
/* is_partial= */ false
);
}
// Partial JSON w/ partial args
test_with_args(
R"({"foo": "bar", "args": {")",
R"({"foo":"bar","args":"{\""})"
);
// Partial args broken in object key
test_with_args(
R"({"foo": "bar", "args": {"ar)",
R"({"foo":"bar","args":"{\"ar"})"
);
// Partial args broken after object key
test_with_args(
R"({"foo": "bar", "args": {"arg1")",
R"({"foo":"bar","args":"{\"arg1\""})"
);
// Partial args broken before object value
test_with_args(
R"({"foo": "bar", "args": {"arg1":)",
R"({"foo":"bar","args":"{\"arg1\":"})"
);
// Partial args broken before object value (space)
test_with_args(
R"({"foo": "bar", "args": {"arg1": )",
R"({"foo":"bar","args":"{\"arg1\":"})"
);
// Partial args broken in object value that may not be complete (int)
test_with_args(
R"({"foo": "bar", "args": {"arg1": 1)",
R"({"foo":"bar","args":"{\"arg1\":"})"
);
// Partial args broken in object value that is complete (int)
test_with_args(
R"({"foo": "bar", "args": {"arg1": 1 )",
R"({"foo":"bar","args":"{\"arg1\":1"})"
);
// Partial args broken in object value that is incomplete (string)
test_with_args(
R"({"foo": "bar", "args": {"arg1": ")",
R"({"foo":"bar","args":"{\"arg1\":\""})"
);
// Partial args broken in object value that is complete (string)
test_with_args(
R"({"foo": "bar", "args": {"arg1": "1")",
R"({"foo":"bar","args":"{\"arg1\":\"1\""})"
);
// Partial args broken on array opening
test_with_args(
R"({"foo": "bar", "args": [)",
R"({"foo":"bar","args":"["})"
);
// Partial args broken on array value that is incomplete (int)
test_with_args(
R"({"foo": "bar", "args": [1)",
R"({"foo":"bar","args":"["})"
);
// Partial args broken on array value that is complete (int)
test_with_args(
R"({"foo": "bar", "args": [1 )",
R"({"foo":"bar","args":"[1"})"
);
// Partial args broken on array value that is complete (string)
test_with_args(
R"({"foo": "bar", "args": ["1")",
R"({"foo":"bar","args":"[\"1\""})"
);
// Partial args broken after array value
test_with_args(
R"({"foo": "bar", "args": [1,)",
R"({"foo":"bar","args":"[1,"})"
);
// Partial args broken on nested array
test_with_args(
R"({"foo": "bar", "args": {"arg1": [)",
R"({"foo":"bar","args":"{\"arg1\":["})"
);
// Unicode tests
test_with_args(
R"({"foo": "bar", "args": {"arg1": "\u)",
R"({"foo":"bar","args":"{\"arg1\":\"\\u"})"
);
test_with_args(
R"({"foo": "bar", "args": {"arg1": "\u0)",
R"({"foo":"bar","args":"{\"arg1\":\"\\u0"})"
);
test_with_args(
R"({"foo": "bar", "args": {"arg1": "\u00)",
R"({"foo":"bar","args":"{\"arg1\":\"\\u00"})"
);
test_with_args(
R"({"foo": "bar", "args": {"arg1": "\u000)",
R"({"foo":"bar","args":"{\"arg1\":\"\\u000"})"
);
test_with_args(
R"({"foo": "bar", "args": {"arg1": "\u0000)",
R"({"foo":"bar","args":"{\"arg1\":\"\\u0000"})"
);
test_with_args(
R"({"foo": "bar", "args": {"arg1": "\ud8)",
R"({"foo":"bar","args":"{\"arg1\":\"\\ud8"})"
);
test_with_args(
R"({"foo": "bar", "args": {"arg1": "\ud80)",
R"({"foo":"bar","args":"{\"arg1\":\"\\ud80"})"
);
test_with_args(
R"({"foo": "bar", "args": {"arg1": "\ud800)",
R"({"foo":"bar","args":"{\"arg1\":\"\\ud800"})"
);
test_with_args(
R"({"foo": "bar", "args": {"arg1": "\ud800\)",
R"({"foo":"bar","args":"{\"arg1\":\"\\ud800\\"})"
);
test_with_args(
R"({"foo": "bar", "args": {"arg1": "\ud800\u)",
R"({"foo":"bar","args":"{\"arg1\":\"\\ud800\\u"})"
);
test_with_args(
R"({"foo": "bar", "args": {"arg1": "\ud800\ud)",
R"({"foo":"bar","args":"{\"arg1\":\"\\ud800\\ud"})"
);
test_with_args(
R"({"foo": "bar", "args": {"arg1": "\ud800\udc)",
R"({"foo":"bar","args":"{\"arg1\":\"\\ud800\\udc"})"
);
test_with_args(
R"({"foo": "bar", "args": {"arg1": "\ud800\udc0)",
R"({"foo":"bar","args":"{\"arg1\":\"\\ud800\\udc0"})"
);
test_with_args(
R"({"foo": "bar", "args": {"arg1": "\ud800\udc00)",
R"({"foo":"bar","args":"{\"arg1\":\"\\ud800\\udc00"})"
);
}
static void test_positions() {
{
common_chat_msg_parser builder("Hello, world!", /* is_partial= */ false, {});
assert_equals<size_t>(0, builder.pos());
assert_throws([&]() { builder.move_to(100); });
assert_equals<size_t>(0, builder.pos());
assert_throws([&]() { builder.move_back(1); });
assert_equals<size_t>(0, builder.pos());
builder.move_to(8);
assert_equals<size_t>(8, builder.pos());
builder.move_back(1);
assert_equals<size_t>(7, builder.pos());
assert_equals("world!", builder.consume_rest());
builder.move_to(0);
assert_equals<size_t>(0, builder.pos());
assert_throws([&]() { builder.finish(); });
assert_equals<size_t>(0, builder.pos());
builder.move_to(builder.input().size());
builder.finish();
}
{
common_chat_msg_parser builder("Hello, world!", /* is_partial= */ true, {});
builder.move_to(builder.input().size());
assert_equals<size_t>(builder.input().size(), builder.pos());
builder.finish();
}
}
int main() {
test_positions();
test_json_with_dumped_args_no_args();
test_json_with_dumped_args();
test_reasoning();
test_regex();
test_deepseek_v3_1_tool_calls();
std::cout << "All tests passed!\n";
return 0;
}