json.cc
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#include <qpdf/JSON.hh>
#include <qpdf/QPDFObjectHandle.hh>
#include <iostream>
#include <assert.h>
static void check(JSON const& j, std::string const& exp)
{
if (exp != j.unparse())
{
std::cout << "Got " << j.unparse() << "; wanted " << exp << "\n";
}
}
static void test_main()
{
JSON jstr = JSON::makeString(
"<1>\xcf\x80<2>\xf0\x9f\xa5\x94\\\"<3>\x03\t\b\r\n<4>");
check(jstr,
"\"<1>\xcf\x80<2>\xf0\x9f\xa5\x94\\\\\\\"<3>"
"\\u0003\\t\\b\\r\\n<4>\"");
JSON jnull = JSON::makeNull();
check(jnull, "null");
JSON jarr = JSON::makeArray();
check(jarr, "[]");
JSON jstr2 = JSON::makeString("a\tb");
JSON jint = JSON::makeInt(16059);
JSON jdouble = JSON::makeReal(3.14159);
JSON jexp = JSON::makeNumber("2.1e5");
jarr.addArrayElement(jstr2);
jarr.addArrayElement(jnull);
jarr.addArrayElement(jint);
jarr.addArrayElement(jdouble);
jarr.addArrayElement(jexp);
check(jarr,
"[\n"
" \"a\\tb\",\n"
" null,\n"
" 16059,\n"
" 3.14159,\n"
" 2.1e5\n"
"]");
JSON jmap = JSON::makeDictionary();
check(jmap, "{}");
jmap.addDictionaryMember("b", jstr2);
jmap.addDictionaryMember("a", jarr);
jmap.addDictionaryMember("c\r\nd", jnull);
jmap.addDictionaryMember("yes", JSON::makeBool(false));
jmap.addDictionaryMember("no", JSON::makeBool(true));
jmap.addDictionaryMember("empty_dict", JSON::makeDictionary());
jmap.addDictionaryMember("empty_list", JSON::makeArray());
jmap.addDictionaryMember("single", JSON::makeArray()).
addArrayElement(JSON::makeInt(12));
check(jmap,
"{\n"
" \"a\": [\n"
" \"a\\tb\",\n"
" null,\n"
" 16059,\n"
" 3.14159,\n"
" 2.1e5\n"
" ],\n"
" \"b\": \"a\\tb\",\n"
" \"c\\r\\nd\": null,\n"
" \"empty_dict\": {},\n"
" \"empty_list\": [],\n"
" \"no\": true,\n"
" \"single\": [\n"
" 12\n"
" ],\n"
" \"yes\": false\n"
"}");
check(QPDFObjectHandle::newReal("0.12").getJSON(), "0.12");
check(QPDFObjectHandle::newReal(".34").getJSON(), "0.34");
check(QPDFObjectHandle::newReal("-0.56").getJSON(), "-0.56");
check(QPDFObjectHandle::newReal("-.78").getJSON(), "-0.78");
}
static void check_schema(JSON& obj, JSON& schema, bool exp,
std::string const& description)
{
std::list<std::string> errors;
std::cout << "--- " << description << std::endl;
assert(exp == obj.checkSchema(schema, errors));
for (std::list<std::string>::iterator iter = errors.begin();
iter != errors.end(); ++iter)
{
std::cout << *iter << std::endl;
}
std::cout << "---" << std::endl;
}
static void test_schema()
{
// Since we don't have a JSON parser, use the PDF parser as a
// shortcut for creating a complex JSON structure.
JSON schema = QPDFObjectHandle::parse(
"<<"
" /one <<"
" /a <<"
" /q (queue)"
" /r <<"
" /x (ecks)"
" /y (why)"
" >>"
" /s [ (esses) ]"
" >>"
" >>"
" /two ["
" <<"
" /goose (gander)"
" /glarp (enspliel)"
" >>"
" ]"
">>").getJSON();
JSON three = JSON::makeDictionary();
three.addDictionaryMember(
"<objid>",
QPDFObjectHandle::parse("<< /z (ebra) >>").getJSON());
schema.addDictionaryMember("/three", three);
JSON a = QPDFObjectHandle::parse("[(not a) (dictionary)]").getJSON();
check_schema(a, schema, false, "top-level type mismatch");
JSON b = QPDFObjectHandle::parse(
"<<"
" /one <<"
" /a <<"
" /t (oops)"
" /r ["
" /x (ecks)"
" /y (why)"
" ]"
" /s << /z (esses) >>"
" >>"
" >>"
" /two ["
" <<"
" /goose (0 gander)"
" /glarp (0 enspliel)"
" >>"
" <<"
" /goose (1 gander)"
" /flarp (1 enspliel)"
" >>"
" 2"
" [ (three) ]"
" <<"
" /goose (4 gander)"
" /glarp (4 enspliel)"
" >>"
" ]"
" /three <<"
" /anything << /x (oops) >>"
" /else << /z (okay) >>"
" >>"
">>").getJSON();
check_schema(b, schema, false, "missing items");
check_schema(a, a, false, "top-level schema array error");
check_schema(b, b, false, "lower-level schema array error");
check_schema(schema, schema, true, "pass");
}
int main()
{
test_main();
test_schema();
std::cout << "end of json tests\n";
return 0;
}