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350 lines
8.6 KiB
C++
350 lines
8.6 KiB
C++
#include <qpdf/assert_test.h>
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#include <qpdf/JSON.hh>
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#include <qpdf/Pipeline.hh>
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#include <qpdf/Pl_String.hh>
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#include <qpdf/QPDF.hh>
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#include <qpdf/QPDFObjectHandle.hh>
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#include <iostream>
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static void
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check(JSON const& j, std::string const& exp)
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{
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if (exp != j.unparse()) {
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std::cout << "Got " << j.unparse() << "; wanted " << exp << "\n";
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}
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}
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static void
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test_main()
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{
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JSON jstr = JSON::makeString("<1>\xcf\x80<2>\xf0\x9f\xa5\x94\\\"<3>\x03\t\b\r\n<4>");
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check(
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jstr,
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"\"<1>\xcf\x80<2>\xf0\x9f\xa5\x94\\\\\\\"<3>"
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"\\u0003\\t\\b\\r\\n<4>\"");
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JSON jnull = JSON::makeNull();
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check(jnull, "null");
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assert(jnull.isNull());
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std::string value;
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assert(!jnull.getNumber(value));
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JSON jarr = JSON::makeArray();
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check(jarr, "[]");
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JSON jstr2 = JSON::makeString("a\tb");
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assert(jstr2.getString(value));
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assert(value == "a\tb");
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assert(!jstr2.getNumber(value));
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/* cSpell: ignore jbool xavalue dvalue xdvalue */
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JSON jint = JSON::makeInt(16059);
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JSON jdouble = JSON::makeReal(3.14159);
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JSON jexp = JSON::makeNumber("2.1e5");
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JSON jbool1 = JSON::makeBool(true);
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JSON jbool2 = JSON::makeBool(false);
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bool bvalue = false;
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assert(jbool1.getBool(bvalue));
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assert(bvalue);
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assert(jbool2.getBool(bvalue));
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assert(!bvalue);
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jarr.addArrayElement(jstr2);
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jarr.addArrayElement(jnull);
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jarr.addArrayElement(jint);
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jarr.addArrayElement(jdouble);
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jarr.addArrayElement(jexp);
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check(
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jarr,
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"[\n"
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" \"a\\tb\",\n"
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" null,\n"
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" 16059,\n"
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" 3.14159,\n"
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" 2.1e5\n"
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"]");
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std::vector<std::string> avalue;
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assert(jarr.forEachArrayItem([&avalue](JSON j) { avalue.push_back(j.unparse()); }));
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std::vector<std::string> xavalue = {
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"\"a\\tb\"",
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"null",
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"16059",
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"3.14159",
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"2.1e5",
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};
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assert(avalue == xavalue);
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JSON jmap = JSON::makeDictionary();
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check(jmap, "{}");
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jmap.addDictionaryMember("b", jstr2);
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jmap.addDictionaryMember("a", jarr);
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jmap.addDictionaryMember("c\r\nd", jnull);
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jmap.addDictionaryMember("yes", JSON::makeBool(false));
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jmap.addDictionaryMember("no", JSON::makeBool(true));
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jmap.addDictionaryMember("empty_dict", JSON::makeDictionary());
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jmap.addDictionaryMember("empty_list", JSON::makeArray());
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jmap.addDictionaryMember("single", JSON::makeArray()).addArrayElement(JSON::makeInt(12));
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std::string jm_str;
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assert(jmap.getDictItem("b").getString(jm_str));
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assert(!jmap.getDictItem("b2").getString(jm_str));
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assert(!jstr2.getDictItem("b").getString(jm_str));
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assert(jm_str == "a\tb");
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check(
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jmap,
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"{\n"
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" \"a\": [\n"
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" \"a\\tb\",\n"
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" null,\n"
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" 16059,\n"
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" 3.14159,\n"
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" 2.1e5\n"
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" ],\n"
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" \"b\": \"a\\tb\",\n"
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" \"c\\r\\nd\": null,\n"
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" \"empty_dict\": {},\n"
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" \"empty_list\": [],\n"
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" \"no\": true,\n"
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" \"single\": [\n"
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" 12\n"
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" ],\n"
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" \"yes\": false\n"
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"}");
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for (int i = 1; i <= JSON::LATEST; ++i) {
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check(QPDFObjectHandle::newReal("0.12").getJSON(i), "0.12");
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check(QPDFObjectHandle::newReal(".34").getJSON(i), "0.34");
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check(QPDFObjectHandle::newReal("-0.56").getJSON(i), "-0.56");
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check(QPDFObjectHandle::newReal("-.78").getJSON(i), "-0.78");
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}
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JSON jmap2 = JSON::parse(R"({"a": 1, "b": "two", "c": [true]})");
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std::map<std::string, std::string> dvalue;
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assert(jmap2.forEachDictItem(
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[&dvalue](std::string const& k, JSON j) { dvalue[k] = j.unparse(); }));
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std::map<std::string, std::string> xdvalue = {
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{"a", "1"},
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{"b", "\"two\""},
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{"c", "[\n true\n]"},
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};
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assert(dvalue == xdvalue);
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auto blob_data = [](Pipeline* p) { *p << "\x01\x02\x03\x04\x05\xff\xfe\xfd\xfc\xfb"; };
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JSON jblob = JSON::makeDictionary();
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jblob.addDictionaryMember("normal", JSON::parse(R"("string")"));
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jblob.addDictionaryMember("blob", JSON::makeBlob(blob_data));
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// cSpell:ignore AQIDBAX
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check(
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jblob,
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"{\n"
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" \"blob\": \"AQIDBAX//v38+w==\",\n"
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" \"normal\": \"string\"\n"
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"}");
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try {
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JSON::parse("\"");
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assert(false);
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} catch (std::runtime_error&) {
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}
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// Check default constructed JSON object (order as per JSON.hh).
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JSON uninitialized;
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std::string ws;
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auto pl = Pl_String("", nullptr, ws);
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uninitialized.write(&pl);
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assert(ws == "null");
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assert(uninitialized.unparse() == "null");
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try {
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uninitialized.addDictionaryMember("key", jarr);
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assert(false);
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} catch (std::runtime_error&) {
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}
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assert(jmap.addDictionaryMember("42", uninitialized).isNull());
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try {
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uninitialized.addArrayElement(jarr);
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assert(false);
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} catch (std::runtime_error&) {
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}
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assert(jarr.addArrayElement(uninitialized).isNull());
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assert(!uninitialized.isArray());
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assert(!uninitialized.isDictionary());
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try {
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uninitialized.checkDictionaryKeySeen("key");
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assert(false);
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} catch (std::logic_error&) {
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}
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std::string st_out = "unchanged";
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assert(!uninitialized.getString(st_out));
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assert(!uninitialized.getNumber(st_out));
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bool b_out = true;
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assert(!uninitialized.getBool(b_out));
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assert(b_out && st_out == "unchanged");
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assert(!uninitialized.isNull());
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assert(uninitialized.getDictItem("42").isNull());
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assert(!uninitialized.forEachDictItem([](auto k, auto v) {}));
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assert(!uninitialized.forEachArrayItem([](auto v) {}));
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std::list<std::string> e;
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assert(!uninitialized.checkSchema(JSON(), 0, e));
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assert(!uninitialized.checkSchema(JSON(), e));
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assert(e.empty());
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uninitialized.setStart(0);
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uninitialized.setEnd(0);
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assert(uninitialized.getStart() == 0);
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assert(uninitialized.getEnd() == 0);
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}
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static void
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check_schema(JSON& obj, JSON& schema, unsigned long flags, bool exp, std::string const& description)
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{
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std::list<std::string> errors;
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std::cout << "--- " << description << std::endl;
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assert(exp == obj.checkSchema(schema, flags, errors));
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for (auto const& error: errors) {
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std::cout << error << std::endl;
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}
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std::cout << "---" << std::endl;
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}
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static void
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test_schema()
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{
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/* cSpell: ignore ptional ebra */
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JSON schema = JSON::parse(R"(
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{
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"one": {
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"a": {
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"q": "queue",
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"r": {
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"x": "ecks"
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},
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"s": [
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{
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"ss": "esses"
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}
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]
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}
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},
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"two": [
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{
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"goose": "gander",
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"glarp": "enspliel"
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}
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],
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"three": {
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"<objid>": {
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"z": "ebra",
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"o": "ptional"
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}
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},
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"four": [
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{ "first": "first element" },
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{ "second": "second element" }
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]
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}
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)");
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JSON a = JSON::parse(R"(["not a", "dictionary"])");
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check_schema(a, schema, 0, false, "top-level type mismatch");
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JSON b = JSON::parse(R"(
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{
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"one": {
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"a": {
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"t": "oops",
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"r": [
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"x",
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"ecks",
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"y",
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"why"
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],
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"s": {
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"z": "esses"
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}
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}
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},
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"two": [
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{
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"goose": "0 gander",
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"glarp": "0 enspliel"
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},
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{
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"goose": "1 gander",
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"flarp": "1 enspliel"
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},
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2,
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[
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"three"
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],
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{
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"goose": "4 gander",
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"glarp": 4
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}
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],
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"three": {
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"anything": {
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"x": "oops",
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"o": "okay"
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},
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"else": {
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"z": "okay"
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}
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},
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"four": [
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{"first": "missing second"}
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]
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}
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)");
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check_schema(b, schema, 0, false, "missing items");
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JSON bad_schema = JSON::parse(R"({"a": true, "b": "potato?"})");
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check_schema(bad_schema, bad_schema, 0, false, "bad schema field type");
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JSON c = JSON::parse(R"(
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{
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"four": [
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{ "first": 1 },
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{ "oops": [2] }
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]
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}
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)");
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check_schema(c, schema, JSON::f_optional, false, "array element mismatch");
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// "two" exercises the case of the JSON containing a single
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// element where the schema has an array.
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JSON good = JSON::parse(R"(
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{
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"one": {
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"a": {
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"q": "potato",
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"r": {
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"x": [1, null]
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},
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"s": [
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{"ss": null},
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{"ss": "anything"}
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]
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}
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},
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"two": {
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"glarp": "enspliel",
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"goose": 3.14
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},
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"three": {
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"<objid>": {
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"z": "ebra"
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}
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},
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"four": [
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{ "first": 1 },
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{ "second": [2] }
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]
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}
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)");
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check_schema(good, schema, 0, false, "not optional");
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check_schema(good, schema, JSON::f_optional, true, "pass");
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}
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int
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main()
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{
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test_main();
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test_schema();
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assert(QPDF::test_json_validators());
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std::cout << "end of json tests\n";
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return 0;
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}
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