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Update and significantly expand the cajun tests

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Originally committed to SVN as r6006.
This commit is contained in:
Thomas Goyne 2011-12-22 21:10:32 +00:00
parent 3097dc634e
commit 9cbaa01e63
2 changed files with 296 additions and 76 deletions
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2
aegisub/libaegisub/common/cajun/elements.cpp
View file

@ -140,7 +140,7 @@ template <typename ElementTypeT>
ElementTypeT const& UnknownElement::CastTo() const
{
CastVisitor<const ElementTypeT> castVisitor;
m_pImp->Accept(castVisitor);
Accept(castVisitor);
if (!castVisitor.element)
throw Exception("Bad cast");
return *castVisitor.element;

370
aegisub/tests/libaegisub_cajun.cpp
View file

@ -1,4 +1,4 @@
// Copyright (c) 2010, Amar Takhar <verm@aegisub.org>
// 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
@ -31,44 +31,223 @@ protected:
// place holder for future code placement
};
TEST_F(lagi_cajun, Compare) {
json::UnknownElement Integer1 = 0;
json::UnknownElement Integer2 = 1;
json::UnknownElement String1 = "1";
json::UnknownElement String2 = "2";
json::UnknownElement Boolean1 = false;
json::UnknownElement Boolean2 = true;
json::UnknownElement Array1 = json::Array();
json::UnknownElement Array2 = json::Array();
json::UnknownElement Object1 = json::Object();
json::UnknownElement Object2 = json::Object();
json::UnknownElement Null = json::Null();
TEST_F(lagi_cajun, ObjectCreateNumber) {
json::Object obj;
obj["Integer"] = json::Number(1);
static_cast<json::Array&>(Array2).push_back(1);
Object2["a"] = "b";
// Test that things are equal to themselves and mixed comparisons are not errors
EXPECT_EQ(Integer1, Integer1);
EXPECT_NE(Integer1, Integer2);
EXPECT_NE(Integer1, String1);
EXPECT_NE(Integer1, Boolean1);
EXPECT_NE(Integer1, Array1);
EXPECT_NE(Integer1, Object1);
EXPECT_NE(Integer1, Null);
EXPECT_EQ(String1, String1);
EXPECT_NE(String1, Integer2);
EXPECT_NE(String1, String2);
EXPECT_NE(String1, Boolean1);
EXPECT_NE(String1, Array1);
EXPECT_NE(String1, Object1);
EXPECT_NE(String1, Null);
EXPECT_EQ(Boolean1, Boolean1);
EXPECT_NE(Boolean1, Integer2);
EXPECT_NE(Boolean1, String1);
EXPECT_NE(Boolean1, Boolean2);
EXPECT_NE(Boolean1, Array1);
EXPECT_NE(Boolean1, Object1);
EXPECT_NE(Boolean1, Null);
EXPECT_EQ(Array1, Array1);
EXPECT_NE(Array1, Integer2);
EXPECT_NE(Array1, String1);
EXPECT_NE(Array1, Boolean1);
EXPECT_NE(Array1, Array2);
EXPECT_NE(Array1, Object1);
EXPECT_NE(Array1, Null);
EXPECT_EQ(Object1, Object1);
EXPECT_NE(Object1, Integer2);
EXPECT_NE(Object1, String1);
EXPECT_NE(Object1, Boolean1);
EXPECT_NE(Object1, Array2);
EXPECT_NE(Object1, Object2);
EXPECT_NE(Object1, Null);
EXPECT_EQ(Null, Null);
EXPECT_NE(Null, Integer2);
EXPECT_NE(Null, String1);
EXPECT_NE(Null, Boolean1);
EXPECT_NE(Null, Array2);
EXPECT_NE(Null, Object2);
}
TEST_F(lagi_cajun, CastNonConst) {
json::UnknownElement Integer = 0;
json::UnknownElement String = "1";
json::UnknownElement Boolean = false;
json::UnknownElement Array = json::Array();
json::UnknownElement Object = json::Object();
TEST_F(lagi_cajun, ObjectCreateString) {
json::Object obj;
obj["String"] = json::String("test");
EXPECT_NO_THROW(static_cast<json::Number&>(Integer));
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::Number const&>(Integer));
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_F(lagi_cajun, CastConst) {
const json::UnknownElement Integer = 10;
const json::UnknownElement String = "1";
const json::UnknownElement Boolean = false;
const json::UnknownElement Array = json::Array();
const json::UnknownElement Object = json::Object();
TEST_F(lagi_cajun, ObjectCreateBoolean) {
json::Object obj;
obj["Boolean"] = json::Boolean(true);
/* these shouldn't compile
EXPECT_NO_THROW(static_cast<json::Number&>(Integer));
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::Number const&>(Integer));
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::Number const&>(Integer));
EXPECT_STREQ("1", static_cast<json::String const&>(String).c_str());
EXPECT_EQ(false, static_cast<json::Boolean const&>(Boolean));
EXPECT_EQ(true, static_cast<json::Array const&>(Array).empty());
EXPECT_EQ(true, static_cast<json::Object const&>(Object).empty());
}
TEST_F(lagi_cajun, UnknownIsIndexable) {
json::Object obj;
obj["Integer"] = 1;
json::UnknownElement unk_obj = obj;
TEST_F(lagi_cajun, ObjectCreateNull) {
EXPECT_NO_THROW(unk_obj["Integer"]);
EXPECT_EQ(1, (json::Number)unk_obj["Integer"]);
EXPECT_THROW(unk_obj[0], json::Exception);
EXPECT_NO_THROW(unk_obj["Nonexistent Key"]);
json::UnknownElement const& const_unk_obj = obj;
EXPECT_NO_THROW(const_unk_obj["Integer"]);
EXPECT_THROW(const_unk_obj["Another nonexistent Key"], json::Exception);
json::Array arr;
arr.push_back(1);
json::UnknownElement unk_arr = arr;
EXPECT_NO_THROW(unk_arr[0]);
EXPECT_EQ(1, (json::Number)unk_arr[0]);
EXPECT_THROW(unk_arr["Integer"], json::Exception);
json::Number number = 1;
json::UnknownElement const& unk_num = number;
EXPECT_THROW(unk_num[0], json::Exception);
EXPECT_THROW(unk_num[""], json::Exception);
}
TEST_F(lagi_cajun, ObjectStoreNumber) {
json::Object obj;
obj["Integer"] = 1;
EXPECT_EQ(1, static_cast<json::Number>(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_F(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::Number>(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_F(lagi_cajun, ObjectStoreBoolean) {
json::Object obj;
obj["Boolean"] = true;
EXPECT_EQ(true, static_cast<json::Boolean>(obj["Boolean"]));
EXPECT_THROW(static_cast<json::String const&>(obj["Boolean"]), json::Exception);
EXPECT_THROW(static_cast<json::Number>(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_F(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::Number>(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_F(lagi_cajun, ObjectCreateArray) {
json::Object obj;
obj["Inside"] = json::String();
obj["Inside"] = "";
json::Array array;
array.Insert(obj);
}
array.push_back(obj);
EXPECT_STREQ("", static_cast<std::string>(array[0]["Inside"]).c_str());
}
TEST_F(lagi_cajun, ObjectEquality) {
json::Object obj;
obj["Inside"] = json::String();
obj["Inside"] = "";
json::Array array;
array.Insert(obj);
array.push_back(obj);
obj["Array"] = array;
json::Object obj_dupe = obj;
@ -76,84 +255,125 @@ TEST_F(lagi_cajun, ObjectEquality) {
obj_dupe["NotEqual"] = array;
EXPECT_FALSE(obj_dupe == obj);
}
// Cajun doesn't have chained exceptions, so there's no real way to test the
// difference in the following exceptions. I'll try emailing the author to see
// If they'll add them, if not we'll do it ourselves.
TEST_F(lagi_cajun, ExExceptionArrayOutOfBounds) {
json::Object obj;
obj["Inside"] = json::String();
json::Array array;
array.Insert(obj);
obj["Array"] = array;
const json::Array& const_array = obj["Array"];
EXPECT_THROW({
const json::String& str = const_array[1];
str.Value(); // avoid unused variable warning
}, json::Exception);
}
TEST_F(lagi_cajun, ExExceptionArrayObjNotFound) {
json::Object obj;
obj["Inside"] = json::String();
json::Array array;
array.Insert(obj);
obj["Array"] = array;
const json::Array& const_array = obj["Array"];
EXPECT_THROW({
const json::String& str = const_array[0]["Nothere"];
str.Value(); // avoid unused variable warning
}, json::Exception);
}
TEST_F(lagi_cajun, ExExceptionArrayBadCast) {
json::Object obj;
obj["Inside"] = json::String();
json::Array array;
array.Insert(obj);
obj["Array"] = array;
const json::Array& const_array = obj["Array"];
const json::Object& arr_obj = const_array[0];
EXPECT_THROW({
const json::UnknownElement& unkn = arr_obj["Array"]["BadCast"];
unkn["Array"]; // avoid unused variable warning
}, json::Exception);
}
TEST_F(lagi_cajun, Read) {
json::Object obj;
std::istringstream doc("{\"String\" : \"This is a test\"}");
std::istringstream doc("{\"String\" : \"This is a test\", \"Boolean\" : false, \"Null\" : null }");
EXPECT_NO_THROW(json::Reader::Read(obj, doc));
EXPECT_NO_THROW(obj["String"]);
EXPECT_STREQ("This is a test", static_cast<std::string>(obj["String"]).c_str());
EXPECT_EQ(false, static_cast<json::Boolean>(obj["Boolean"]));
EXPECT_NO_THROW(static_cast<json::Null>(obj["Null"]));
}
TEST_F(lagi_cajun, Write) {
json::Object obj;
std::istringstream doc("{\"String\" : \"This is a test\"}");
obj["Boolean"] = true;
obj["String"] = "This \"is\" \\a \t test";
std::stringstream stream;
EXPECT_NO_THROW(json::Writer::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(json::Writer::Write(json::Array(), stream));
EXPECT_STREQ("[]", stream.str().c_str());
stream.str("");
EXPECT_NO_THROW(json::Writer::Write(json::Object(), stream));
EXPECT_STREQ("{}", stream.str().c_str());
stream.str("");
EXPECT_NO_THROW(json::Writer::Write(true, stream));
EXPECT_STREQ("true", stream.str().c_str());
stream.str("");
EXPECT_NO_THROW(json::Writer::Write(false, stream));
EXPECT_STREQ("false", stream.str().c_str());
stream.str("");
EXPECT_NO_THROW(json::Writer::Write(json::Null(), stream));
EXPECT_STREQ("null", stream.str().c_str());
}
TEST_F(lagi_cajun, ReaderExParseException) {
TEST_F(lagi_cajun, ReaderParserErrors) {
json::Array arr;
std::istringstream missing_comma("[1 2]");
EXPECT_THROW(json::Reader::Read(arr, missing_comma), json::Exception);
json::Number num;
std::istringstream garbage_after_number("123eee");
EXPECT_THROW(json::Reader::Read(num, garbage_after_number), json::Exception);
json::String str;
std::istringstream unexpected_eof("[");
EXPECT_THROW(json::Reader::Read(str, unexpected_eof), json::Exception);
std::istringstream bad_initial_token("]");
EXPECT_THROW(json::Reader::Read(str, bad_initial_token), json::Exception);
std::istringstream garbage_after_end("[]a");
EXPECT_THROW(json::Reader::Read(str, garbage_after_end), json::Exception);
json::Null null;
std::istringstream empty_str("");
EXPECT_THROW(json::Reader::Read(null, empty_str), json::Exception);
json::Object obj;
std::istringstream doc("[1 2]");
std::istringstream dupe_keys("{\"a\": [], \"a\": 0}");
EXPECT_THROW(json::Reader::Read(obj, dupe_keys), json::Exception);
EXPECT_THROW(json::Reader::Read(obj, doc), json::Reader::ParseException);
std::istringstream unique_keys("{\"a\": [], \"b\": 0}");
EXPECT_NO_THROW(json::Reader::Read(obj, unique_keys));
}
TEST_F(lagi_cajun, ReaderExScanException) {
TEST_F(lagi_cajun, ReaderScanErrors) {
json::Object obj;
std::istringstream doc("[true, false, thiswontwork]");
EXPECT_THROW(json::Reader::Read(obj, doc), json::Reader::ScanException);
EXPECT_THROW(json::Reader::Read(obj, doc), json::Exception);
json::Number num;
std::istringstream garbage_after_number("123abc");
EXPECT_THROW(json::Reader::Read(num, garbage_after_number), json::Exception);
json::String str;
std::istringstream bad_escape("\"\\j\"");
EXPECT_THROW(json::Reader::Read(str, bad_escape), json::Exception);
std::istringstream unexpected_eof("\"abc");
EXPECT_THROW(json::Reader::Read(str, 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;
json::Writer::Write(ele, oss);
return oss.str();
}
TEST_F(lagi_cajun, round_double_roundtrips) {
EXPECT_STREQ("1.0", roundtrip_test("1.0").c_str());
}
TEST_F(lagi_cajun, representable_double_roundtrips) {
EXPECT_STREQ("1.5", roundtrip_test("1.5").c_str());
}
TEST_F(lagi_cajun, int_roundtrips) {
EXPECT_STREQ("1", roundtrip_test("1").c_str());
}
TEST_F(lagi_cajun, bool_roundtrips) {
EXPECT_STREQ("true", roundtrip_test("true").c_str());
EXPECT_STREQ("false", roundtrip_test("false").c_str());
}
TEST_F(lagi_cajun, null_roundtrips) {
EXPECT_STREQ("null", roundtrip_test("null").c_str());
}