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integer_tests.cpp
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94 lines (79 loc) · 2.88 KB
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#include <cassert>
#include <iostream>
#include <limits>
#include "simdjson/jsonparser.h"
using namespace simdjson;
static const std::string make_json(const std::string value) {
const std::string s = "{\"key\": ";
return s + value + "}";
}
// e.g. make_json(123) => {"key": 123} as string
template <typename T> static const std::string make_json(T value) {
return make_json(std::to_string(value));
}
template <typename T>
static void parse_and_validate(const std::string src, T expected) {
std::cout << "src: " << src << ", ";
const padded_string pstr{src};
auto json = build_parsed_json(pstr);
assert(json.is_valid());
ParsedJson::Iterator it{json};
assert(it.down());
assert(it.next());
bool result;
if constexpr (std::is_same<int64_t, T>::value) {
const auto actual = it.get_integer();
result = expected == actual;
} else {
const auto actual = it.get_unsigned_integer();
result = expected == actual;
}
std::cout << std::boolalpha << "test: " << result << std::endl;
if(!result) {
std::cerr << "bug detected" << std::endl;
throw std::runtime_error("bug");
}
}
static bool parse_and_check_signed(const std::string src) {
std::cout << "src: " << src << ", expecting signed" << std::endl;
const padded_string pstr{src};
auto json = build_parsed_json(pstr);
assert(json.is_valid());
ParsedJson::Iterator it{json};
assert(it.down());
assert(it.next());
return it.is_integer() && it.is_number();
}
static bool parse_and_check_unsigned(const std::string src) {
std::cout << "src: " << src << ", expecting unsigned" << std::endl;
const padded_string pstr{src};
auto json = build_parsed_json(pstr);
assert(json.is_valid());
ParsedJson::Iterator it{json};
assert(it.down());
assert(it.next());
return it.is_unsigned_integer() && it.is_number();
}
int main() {
using std::numeric_limits;
constexpr auto int64_max = numeric_limits<int64_t>::max();
constexpr auto int64_min = numeric_limits<int64_t>::lowest();
constexpr auto uint64_max = numeric_limits<uint64_t>::max();
constexpr auto uint64_min = numeric_limits<uint64_t>::lowest();
parse_and_validate(make_json(int64_max), int64_max);
parse_and_validate(make_json(int64_min), int64_min);
parse_and_validate(make_json(uint64_max), uint64_max);
parse_and_validate(make_json(uint64_min), uint64_min);
constexpr auto int64_max_plus1 = static_cast<uint64_t>(int64_max) + 1;
parse_and_validate(make_json(int64_max_plus1), int64_max_plus1);
if(!parse_and_check_signed(make_json(int64_max))) {
std::cerr << "bug: large signed integers should be represented as signed integers" << std::endl;
return EXIT_FAILURE;
}
if(!parse_and_check_unsigned(make_json(uint64_max))) {
std::cerr << "bug: a large unsigned integers is not represented as an unsigned integer" << std::endl;
return EXIT_FAILURE;
}
std::cout << "All ok." << std::endl;
return EXIT_SUCCESS;
}