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129 lines
3.3 KiB
C++
129 lines
3.3 KiB
C++
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#include <qpdf/JSONHandler.hh>
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#include <qpdf/QUtil.hh>
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#include <iostream>
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#include <cassert>
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static void print_null(std::string const& path)
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{
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std::cout << path << ": null" << std::endl;
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}
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static void print_string(std::string const& path, std::string const& value)
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{
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std::cout << path << ": string: " << value << std::endl;
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}
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static void print_number(std::string const& path, std::string const& value)
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{
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std::cout << path << ": number: " << value << std::endl;
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}
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static void print_bool(std::string const& path, bool value)
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{
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std::cout << path << ": bool: " << (value ? "true" : "false") << std::endl;
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}
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static void print_json(std::string const& path, JSON value)
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{
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std::cout << path << ": json: " << value.unparse() << std::endl;
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}
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static void test_scalar()
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{
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std::cout << "-- scalar --" << std::endl;
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JSONHandler h;
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h.addStringHandler(print_string);
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JSON j = JSON::parse("\"potato\"");
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h.handle(".", j);
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}
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static std::shared_ptr<JSONHandler> make_all_handler()
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{
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auto h = std::make_shared<JSONHandler>();
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auto& m = h->addDictHandlers();
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auto h1 = std::make_shared<JSONHandler>();
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h1->addStringHandler(print_string);
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m["one"] = h1;
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auto h2 = std::make_shared<JSONHandler>();
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h2->addNumberHandler(print_number);
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m["two"] = h2;
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auto h3 = std::make_shared<JSONHandler>();
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h3->addBoolHandler(print_bool);
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m["three"] = h3;
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auto h4 = std::make_shared<JSONHandler>();
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h4->addAnyHandler(print_json);
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m["four"] = h4;
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m["phour"] = h4; // share h4
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auto h5 = std::make_shared<JSONHandler>();
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// Allow to be either string or bool
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h5->addBoolHandler(print_bool);
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h5->addStringHandler(print_string);
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h5->addNullHandler(print_null);
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auto h5s = std::make_shared<JSONHandler>();
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m["five"] = h5s;
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h5s->addArrayHandler(h5);
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auto h6 = std::make_shared<JSONHandler>();
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auto& m6 = h6->addDictHandlers();
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auto h6a = std::make_shared<JSONHandler>();
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m6["a"] = h6a;
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auto& m6a = h6a->addDictHandlers();
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auto h6ab = std::make_shared<JSONHandler>();
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m6a["b"] = h6ab;
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auto h6ax = std::make_shared<JSONHandler>();
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h6ax->addAnyHandler(print_json);
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h6a->addFallbackDictHandler(h6ax);
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m6["b"] = h6ab; // share
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h6ab->addStringHandler(print_string);
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m["six"] = h6;
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return h;
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}
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static void test_all()
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{
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std::cout << "-- all --" << std::endl;
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auto h = make_all_handler();
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JSON j = JSON::parse(R"({
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"one": "potato",
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"two": 3.14,
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"three": true,
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"four": ["a", 1],
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"five": ["x", false, "y", null, true],
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"phour": null,
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"six": {"a": {"b": "quack", "Q": "baaa"}, "b": "moo"}
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})");
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h->handle(".", j);
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}
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static void test_errors()
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{
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std::cout << "-- errors --" << std::endl;
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auto h = make_all_handler();
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auto t = [h](std::string const& msg, std::function<void()> fn) {
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try
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{
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fn();
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assert(false);
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}
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catch (JSONHandler::Error& e)
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{
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std::cout << msg << ": " << e.what() << std::endl;
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}
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};
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t("bad type at top", [&h](){
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h->handle(".", JSON::makeString("oops"));
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});
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t("unexpected key", [&h](){
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JSON j = JSON::parse(R"({"x": "y"})");
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h->handle(".", j);
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});
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}
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int main(int argc, char* argv[])
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{
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test_scalar();
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test_all();
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test_errors();
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return 0;
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}
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