Aegisub/tests/tests/cajun.cpp

285 lines
10 KiB
C++

// Copyright (c) 2011, Thomas Goyne <plorkyeran@aegisub.org>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//
// $Id$
/// @file libaegisub_cajun.cpp
/// @brief Cajun/Json tests.
/// @ingroup cajun
#include "main.h"
#include <libaegisub/cajun/reader.h>
#include <libaegisub/cajun/writer.h>
#include <libaegisub/cajun/elements.h>
#include <libaegisub/cajun/visitor.h>
class lagi_cajun : public libagi { };
TEST(lagi_cajun, CastNonConst) {
json::UnknownElement Integer = 0;
json::UnknownElement Double = 0.0;
json::UnknownElement String = "1";
json::UnknownElement Boolean = false;
json::UnknownElement Array = json::Array();
json::UnknownElement Object = json::Object();
EXPECT_NO_THROW(static_cast<json::Integer&>(Integer));
EXPECT_NO_THROW(static_cast<json::Double&>(Double));
EXPECT_NO_THROW(static_cast<json::String&>(String));
EXPECT_NO_THROW(static_cast<json::Boolean&>(Boolean));
EXPECT_NO_THROW(static_cast<json::Array&>(Array));
EXPECT_NO_THROW(static_cast<json::Object&>(Object));
EXPECT_NO_THROW(static_cast<json::Integer const&>(Integer));
EXPECT_NO_THROW(static_cast<json::Double const&>(Double));
EXPECT_NO_THROW(static_cast<json::String const&>(String));
EXPECT_NO_THROW(static_cast<json::Boolean const&>(Boolean));
EXPECT_NO_THROW(static_cast<json::Array const&>(Array));
EXPECT_NO_THROW(static_cast<json::Object const&>(Object));
}
TEST(lagi_cajun, CastConst) {
const json::UnknownElement Integer = 10;
const json::UnknownElement Double = 10.0;
const json::UnknownElement String = "1";
const json::UnknownElement Boolean = false;
const json::UnknownElement Array = json::Array();
const json::UnknownElement Object = json::Object();
/* these shouldn't compile
EXPECT_NO_THROW(static_cast<json::Integer&>(Integer));
EXPECT_NO_THROW(static_cast<json::Double&>(Double));
EXPECT_NO_THROW(static_cast<json::String&>(String));
EXPECT_NO_THROW(static_cast<json::Boolean&>(Boolean));
EXPECT_NO_THROW(static_cast<json::Array&>(Array));
EXPECT_NO_THROW(static_cast<json::Object&>(Object));
*/
EXPECT_NO_THROW(static_cast<json::Integer const&>(Integer));
EXPECT_NO_THROW(static_cast<json::Double const&>(Double));
EXPECT_NO_THROW(static_cast<json::String const&>(String));
EXPECT_NO_THROW(static_cast<json::Boolean const&>(Boolean));
EXPECT_NO_THROW(static_cast<json::Array const&>(Array));
EXPECT_NO_THROW(static_cast<json::Object const&>(Object));
EXPECT_EQ(10, static_cast<json::Integer const&>(Integer));
EXPECT_EQ(10, static_cast<json::Double const&>(Double));
EXPECT_STREQ("1", static_cast<json::String const&>(String).c_str());
EXPECT_FALSE(static_cast<json::Boolean const&>(Boolean));
EXPECT_TRUE(static_cast<json::Array const&>(Array).empty());
EXPECT_TRUE(static_cast<json::Object const&>(Object).empty());
}
TEST(lagi_cajun, ObjectStoreInteger) {
json::Object obj;
obj["Integer"] = 1;
EXPECT_EQ(1, static_cast<json::Integer>(obj["Integer"]));
EXPECT_THROW(static_cast<json::String const&>(obj["Integer"]), json::Exception);
EXPECT_THROW(static_cast<json::Boolean>(obj["Integer"]), json::Exception);
EXPECT_THROW(static_cast<json::Null>(obj["Integer"]), json::Exception);
EXPECT_THROW(static_cast<json::Array const&>(obj["Integer"]), json::Exception);
EXPECT_THROW(static_cast<json::Object const&>(obj["Integer"]), json::Exception);
}
TEST(lagi_cajun, ObjectStoreDouble) {
json::Object obj;
obj["Double"] = 1.0;
EXPECT_EQ(1.0, static_cast<json::Double>(obj["Double"]));
EXPECT_THROW(static_cast<json::String const&>(obj["Double"]), json::Exception);
EXPECT_THROW(static_cast<json::Boolean>(obj["Double"]), json::Exception);
EXPECT_THROW(static_cast<json::Null>(obj["Double"]), json::Exception);
EXPECT_THROW(static_cast<json::Array const&>(obj["Double"]), json::Exception);
EXPECT_THROW(static_cast<json::Object const&>(obj["Double"]), json::Exception);
}
TEST(lagi_cajun, ObjectStoreString) {
json::Object obj;
obj["String"] = "test";
EXPECT_STREQ("test", static_cast<std::string>(obj["String"]).c_str());
EXPECT_THROW(static_cast<json::Integer>(obj["String"]), json::Exception);
EXPECT_THROW(static_cast<json::Boolean>(obj["String"]), json::Exception);
EXPECT_THROW(static_cast<json::Null>(obj["String"]), json::Exception);
EXPECT_THROW(static_cast<json::Array const&>(obj["String"]), json::Exception);
EXPECT_THROW(static_cast<json::Object const&>(obj["String"]), json::Exception);
}
TEST(lagi_cajun, ObjectStoreBoolean) {
json::Object obj;
obj["Boolean"] = true;
EXPECT_TRUE(static_cast<json::Boolean>(obj["Boolean"]));
EXPECT_THROW(static_cast<json::String const&>(obj["Boolean"]), json::Exception);
EXPECT_THROW(static_cast<json::Integer>(obj["Boolean"]), json::Exception);
EXPECT_THROW(static_cast<json::Null>(obj["Boolean"]), json::Exception);
EXPECT_THROW(static_cast<json::Array const&>(obj["Boolean"]), json::Exception);
EXPECT_THROW(static_cast<json::Object const&>(obj["Boolean"]), json::Exception);
}
TEST(lagi_cajun, ObjectStoreNull) {
json::Object obj;
obj["Null"] = json::Null();
EXPECT_NO_THROW(static_cast<json::Null>(obj["Null"]));
// null is implicitly convertible to everything
EXPECT_NO_THROW(static_cast<json::String const&>(obj["Null"]));
obj["Null"] = json::Null();
EXPECT_NO_THROW(static_cast<json::Integer>(obj["Null"]));
obj["Null"] = json::Null();
EXPECT_NO_THROW(static_cast<json::Double>(obj["Null"]));
obj["Null"] = json::Null();
EXPECT_NO_THROW(static_cast<json::Boolean>(obj["Null"]));
obj["Null"] = json::Null();
EXPECT_NO_THROW(static_cast<json::Array const&>(obj["Null"]));
obj["Null"] = json::Null();
EXPECT_NO_THROW(static_cast<json::Object const&>(obj["Null"]));
// obj["Null"] should no longer be of type Null
EXPECT_THROW(static_cast<json::Null>(obj["Null"]), json::Exception);
}
TEST(lagi_cajun, ObjectCreateArray) {
json::Object obj;
obj["Inside"] = "";
json::Array array;
array.push_back(std::move(obj));
EXPECT_STREQ("", static_cast<std::string>(static_cast<json::Object&>(array[0])["Inside"]).c_str());
}
TEST(lagi_cajun, Read) {
json::UnknownElement root;
std::istringstream doc("{\"String\" : \"This is a test\", \"Boolean\" : false, \"Null\" : null }");
EXPECT_NO_THROW(json::Reader::Read(root, doc));
json::Object& obj = root;
EXPECT_NO_THROW(obj["String"]);
EXPECT_STREQ("This is a test", static_cast<std::string>(obj["String"]).c_str());
EXPECT_FALSE(static_cast<json::Boolean>(obj["Boolean"]));
EXPECT_NO_THROW(static_cast<json::Null>(obj["Null"]));
}
TEST(lagi_cajun, Write) {
json::Object obj;
obj["Boolean"] = true;
obj["String"] = "This \"is\" \\a \t test";
std::stringstream stream;
EXPECT_NO_THROW(agi::JsonWriter::Write(obj, stream));
EXPECT_STREQ("{\n\t\"Boolean\" : true,\n\t\"String\" : \"This \\\"is\\\" \\\\a \\t test\"\n}", stream.str().c_str());
stream.str("");
EXPECT_NO_THROW(agi::JsonWriter::Write(json::Array(), stream));
EXPECT_STREQ("[]", stream.str().c_str());
stream.str("");
EXPECT_NO_THROW(agi::JsonWriter::Write(json::Object(), stream));
EXPECT_STREQ("{}", stream.str().c_str());
stream.str("");
EXPECT_NO_THROW(agi::JsonWriter::Write(true, stream));
EXPECT_STREQ("true", stream.str().c_str());
stream.str("");
EXPECT_NO_THROW(agi::JsonWriter::Write(false, stream));
EXPECT_STREQ("false", stream.str().c_str());
stream.str("");
EXPECT_NO_THROW(agi::JsonWriter::Write(json::Null(), stream));
EXPECT_STREQ("null", stream.str().c_str());
}
TEST(lagi_cajun, ReaderParserErrors) {
json::UnknownElement ue;
std::istringstream missing_comma("[1 2]");
EXPECT_THROW(json::Reader::Read(ue, missing_comma), json::Exception);
std::istringstream garbage_after_number("123!");
EXPECT_THROW(json::Reader::Read(ue, garbage_after_number), json::Exception);
std::istringstream unexpected_eof("[");
EXPECT_THROW(json::Reader::Read(ue, unexpected_eof), json::Exception);
std::istringstream bad_initial_token("]");
EXPECT_THROW(json::Reader::Read(ue, bad_initial_token), json::Exception);
std::istringstream garbage_after_end("[]a");
EXPECT_THROW(json::Reader::Read(ue, garbage_after_end), json::Exception);
std::istringstream empty_str("");
EXPECT_THROW(json::Reader::Read(ue, empty_str), json::Exception);
std::istringstream dupe_keys("{\"a\": [], \"a\": 0}");
EXPECT_THROW(json::Reader::Read(ue, dupe_keys), json::Exception);
std::istringstream unique_keys("{\"a\": [], \"b\": 0}");
EXPECT_NO_THROW(json::Reader::Read(ue, unique_keys));
}
TEST(lagi_cajun, ReaderScanErrors) {
json::UnknownElement ue;
std::istringstream doc("[true, false, thiswontwork]");
EXPECT_THROW(json::Reader::Read(ue, doc), json::Exception);
std::istringstream garbage_after_number("123abc");
EXPECT_THROW(json::Reader::Read(ue, garbage_after_number), json::Exception);
std::istringstream bad_escape("\"\\j\"");
EXPECT_THROW(json::Reader::Read(ue, bad_escape), json::Exception);
std::istringstream unexpected_eof("\"abc");
EXPECT_THROW(json::Reader::Read(ue, unexpected_eof), json::Exception);
}
std::string roundtrip_test(const char *in) {
std::istringstream iss(in);
json::UnknownElement ele;
json::Reader::Read(ele, iss);
std::stringstream oss;
agi::JsonWriter::Write(ele, oss);
return oss.str();
}
TEST(lagi_cajun, round_double_roundtrips) {
EXPECT_STREQ("1.0", roundtrip_test("1.0").c_str());
}
TEST(lagi_cajun, representable_double_roundtrips) {
EXPECT_STREQ("1.5", roundtrip_test("1.5").c_str());
}
TEST(lagi_cajun, int_roundtrips) {
EXPECT_STREQ("1", roundtrip_test("1").c_str());
}
TEST(lagi_cajun, bool_roundtrips) {
EXPECT_STREQ("true", roundtrip_test("true").c_str());
EXPECT_STREQ("false", roundtrip_test("false").c_str());
}
TEST(lagi_cajun, null_roundtrips) {
EXPECT_STREQ("null", roundtrip_test("null").c_str());
}