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/* Copyright (C) 2010 Wildfire Games.
* This file is part of 0 A.D.
*
* 0 A.D. is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* 0 A.D. is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
*/
#include "lib/self_test.h"
#include "scriptinterface/ScriptInterface.h"
#include "maths/Fixed.h"
#include "maths/MathUtil.h"
#include "ps/CLogger.h"
#include "jsapi.h"
class TestScriptConversions : public CxxTest::TestSuite
{
template <typename T>
void convert_to(const T& value, const std::string& expected)
{
ScriptInterface script("Test", "Test", g_ScriptRuntime);
JSContext* cx = script.GetContext();
JSAutoRequest rq(cx);
JS::RootedValue v1(cx);
ScriptInterface::ToJSVal(cx, &v1, value);
// We want to convert values to strings, but can't just call toSource() on them
// since they might not be objects. So just use uneval.
std::string source;
JS::RootedValue global(cx, script.GetGlobalObject());
TS_ASSERT(script.CallFunction(global, "uneval", v1, source));
TS_ASSERT_STR_EQUALS(source, expected);
}
template <typename T>
void roundtrip(const T& value, const char* expected)
{
ScriptInterface script("Test", "Test", g_ScriptRuntime);
JSContext* cx = script.GetContext();
JSAutoRequest rq(cx);
JS::RootedValue v1(cx);
ScriptInterface::ToJSVal(cx, &v1, value);
std::string source;
JS::RootedValue global(cx, script.GetGlobalObject());
TS_ASSERT(script.CallFunction(global, "uneval", v1, source));
if (expected)
TS_ASSERT_STR_EQUALS(source, expected);
T v2 = T();
TS_ASSERT(ScriptInterface::FromJSVal(cx, v1, v2));
TS_ASSERT_EQUALS(value, v2);
}
public:
void test_roundtrip()
{
roundtrip<bool>(true, "true");
roundtrip<bool>(false, "false");
roundtrip<float>(0, "0");
roundtrip<float>(0.5, "0.5");
roundtrip<float>(1e9f, "1000000000");
roundtrip<float>(1e30f, "1.0000000150474662e+30");
roundtrip<i32>(0, "0");
roundtrip<i32>(123, "123");
roundtrip<i32>(-123, "-123");
roundtrip<i32>(1073741822, "1073741822"); // JSVAL_INT_MAX-1
roundtrip<i32>(1073741823, "1073741823"); // JSVAL_INT_MAX
roundtrip<i32>(-1073741823, "-1073741823"); // JSVAL_INT_MIN+1
roundtrip<i32>(-1073741824, "-1073741824"); // JSVAL_INT_MIN
roundtrip<u32>(0, "0");
roundtrip<u32>(123, "123");
roundtrip<u32>(1073741822, "1073741822"); // JSVAL_INT_MAX-1
roundtrip<u32>(1073741823, "1073741823"); // JSVAL_INT_MAX
{
TestLogger log; // swallow warnings about values not being stored as INT jsvals
roundtrip<i32>(1073741824, "1073741824"); // JSVAL_INT_MAX+1
roundtrip<i32>(-1073741825, "-1073741825"); // JSVAL_INT_MIN-1
roundtrip<u32>(1073741824, "1073741824"); // JSVAL_INT_MAX+1
}
std::string s1 = "test";
s1[1] = '\0';
std::wstring w1 = L"test";
w1[1] = '\0';
roundtrip<std::string>("", "\"\"");
roundtrip<std::string>("test", "\"test\"");
roundtrip<std::string>(s1, "\"t\\x00st\"");
// TODO: should test non-ASCII strings
roundtrip<std::wstring>(L"", "\"\"");
roundtrip<std::wstring>(L"test", "\"test\"");
roundtrip<std::wstring>(w1, "\"t\\x00st\"");
// TODO: should test non-ASCII strings
convert_to<const char*>("", "\"\"");
convert_to<const char*>("test", "\"test\"");
convert_to<const char*>(s1.c_str(), "\"t\"");
roundtrip<fixed>(fixed::FromInt(0), "0");
roundtrip<fixed>(fixed::FromInt(123), "123");
roundtrip<fixed>(fixed::FromInt(-123), "-123");
roundtrip<fixed>(fixed::FromDouble(123.25), "123.25");
}
void test_integers()
{
ScriptInterface script("Test", "Test", g_ScriptRuntime);
JSContext* cx = script.GetContext();
JSAutoRequest rq(cx);
// using new uninitialized variables each time to be sure the test doesn't succeeed if ToJSVal doesn't touch the value at all.
JS::RootedValue val0(cx), val1(cx), val2(cx), val3(cx), val4(cx), val5(cx), val6(cx), val7(cx), val8(cx);
ScriptInterface::ToJSVal<i32>(cx, &val0, 0);
ScriptInterface::ToJSVal<i32>(cx, &val1, 2147483646); // JSVAL_INT_MAX-1
ScriptInterface::ToJSVal<i32>(cx, &val2, 2147483647); // JSVAL_INT_MAX
ScriptInterface::ToJSVal<i32>(cx, &val3, -2147483647); // JSVAL_INT_MIN+1
ScriptInterface::ToJSVal<i32>(cx, &val4, -(i64)2147483648u); // JSVAL_INT_MIN
TS_ASSERT(JSVAL_IS_INT(val0));
TS_ASSERT(JSVAL_IS_INT(val1));
TS_ASSERT(JSVAL_IS_INT(val2));
TS_ASSERT(JSVAL_IS_INT(val3));
TS_ASSERT(JSVAL_IS_INT(val4));
ScriptInterface::ToJSVal<u32>(cx, &val5, 0);
ScriptInterface::ToJSVal<u32>(cx, &val6, 2147483646u); // JSVAL_INT_MAX-1
ScriptInterface::ToJSVal<u32>(cx, &val7, 2147483647u); // JSVAL_INT_MAX
ScriptInterface::ToJSVal<u32>(cx, &val8, 2147483648u); // JSVAL_INT_MAX+1
TS_ASSERT(JSVAL_IS_INT(val5));
TS_ASSERT(JSVAL_IS_INT(val6));
TS_ASSERT(JSVAL_IS_INT(val7));
TS_ASSERT(JSVAL_IS_DOUBLE(val8));
}
void test_nonfinite()
{
roundtrip<float>(std::numeric_limits<float>::infinity(), "Infinity");
roundtrip<float>(-std::numeric_limits<float>::infinity(), "-Infinity");
convert_to<float>(std::numeric_limits<float>::quiet_NaN(), "NaN"); // can't use roundtrip since nan != nan
ScriptInterface script("Test", "Test", g_ScriptRuntime);
JSContext* cx = script.GetContext();
JSAutoRequest rq(cx);
float f = 0;
JS::RootedValue testNANVal(cx);
ScriptInterface::ToJSVal(cx, &testNANVal, NAN);
TS_ASSERT(ScriptInterface::FromJSVal(cx, testNANVal, f));
TS_ASSERT(isnan(f));
}
// TODO: test vectors
void test_fixed()
{
// NOTE: fixed conversions are defined in simulation2/scripting/EngineScriptConversions.cpp
fixed f;
f.SetInternalValue(10590283);
roundtrip<fixed>(f, "161.5948944091797");
f.SetInternalValue(-10590283);
roundtrip<fixed>(f, "-161.5948944091797");
f.SetInternalValue(2000000000);
roundtrip<fixed>(f, "30517.578125");
f.SetInternalValue(2000000001);
roundtrip<fixed>(f, "30517.57814025879");
}
};
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