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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*/
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <limits>
#include <string.h>
#include "jsprf.h"
#include "jsstr.h"
#include "jsapi-tests/tests.h"
using namespace js;
class AutoInflatedString {
JSContext * const cx;
char16_t* chars_;
size_t length_;
public:
explicit AutoInflatedString(JSContext* cx) : cx(cx), chars_(nullptr), length_(0) { }
~AutoInflatedString() {
JS_free(cx, chars_);
}
template<size_t N> void operator=(const char (&str)[N]) {
length_ = N - 1;
chars_ = InflateString(cx, str, &length_);
if (!chars_)
abort();
}
void operator=(const char* str) {
length_ = strlen(str);
chars_ = InflateString(cx, str, &length_);
if (!chars_)
abort();
}
const char16_t* chars() const { return chars_; }
size_t length() const { return length_; }
};
BEGIN_TEST(testParseJSON_success)
{
// Primitives
JS::RootedValue expected(cx);
expected = JS::TrueValue();
CHECK(TryParse(cx, "true", expected));
expected = JS::FalseValue();
CHECK(TryParse(cx, "false", expected));
expected = JS::NullValue();
CHECK(TryParse(cx, "null", expected));
expected.setInt32(0);
CHECK(TryParse(cx, "0", expected));
expected.setInt32(1);
CHECK(TryParse(cx, "1", expected));
expected.setInt32(-1);
CHECK(TryParse(cx, "-1", expected));
expected.setDouble(1);
CHECK(TryParse(cx, "1", expected));
expected.setDouble(1.75);
CHECK(TryParse(cx, "1.75", expected));
expected.setDouble(9e9);
CHECK(TryParse(cx, "9e9", expected));
expected.setDouble(std::numeric_limits<double>::infinity());
CHECK(TryParse(cx, "9e99999", expected));
JS::Rooted<JSFlatString*> str(cx);
const char16_t emptystr[] = { '\0' };
str = js::NewStringCopyN<CanGC>(cx, emptystr, 0);
CHECK(str);
expected = JS::StringValue(str);
CHECK(TryParse(cx, "\"\"", expected));
const char16_t nullstr[] = { '\0' };
str = NewString(cx, nullstr);
CHECK(str);
expected = JS::StringValue(str);
CHECK(TryParse(cx, "\"\\u0000\"", expected));
const char16_t backstr[] = { '\b' };
str = NewString(cx, backstr);
CHECK(str);
expected = JS::StringValue(str);
CHECK(TryParse(cx, "\"\\b\"", expected));
CHECK(TryParse(cx, "\"\\u0008\"", expected));
const char16_t newlinestr[] = { '\n', };
str = NewString(cx, newlinestr);
CHECK(str);
expected = JS::StringValue(str);
CHECK(TryParse(cx, "\"\\n\"", expected));
CHECK(TryParse(cx, "\"\\u000A\"", expected));
// Arrays
JS::RootedValue v(cx), v2(cx);
JS::RootedObject obj(cx);
bool isArray;
CHECK(Parse(cx, "[]", &v));
CHECK(v.isObject());
obj = &v.toObject();
CHECK(JS_IsArrayObject(cx, obj, &isArray));
CHECK(isArray);
CHECK(JS_GetProperty(cx, obj, "length", &v2));
CHECK(v2.isInt32(0));
CHECK(Parse(cx, "[1]", &v));
CHECK(v.isObject());
obj = &v.toObject();
CHECK(JS_IsArrayObject(cx, obj, &isArray));
CHECK(isArray);
CHECK(JS_GetProperty(cx, obj, "0", &v2));
CHECK(v2.isInt32(1));
CHECK(JS_GetProperty(cx, obj, "length", &v2));
CHECK(v2.isInt32(1));
// Objects
CHECK(Parse(cx, "{}", &v));
CHECK(v.isObject());
obj = &v.toObject();
CHECK(JS_IsArrayObject(cx, obj, &isArray));
CHECK(!isArray);
CHECK(Parse(cx, "{ \"f\": 17 }", &v));
CHECK(v.isObject());
obj = &v.toObject();
CHECK(JS_IsArrayObject(cx, obj, &isArray));
CHECK(!isArray);
CHECK(JS_GetProperty(cx, obj, "f", &v2));
CHECK(v2.isInt32(17));
return true;
}
template<size_t N> static JSFlatString*
NewString(JSContext* cx, const char16_t (&chars)[N])
{
return js::NewStringCopyN<CanGC>(cx, chars, N);
}
template<size_t N> inline bool
Parse(JSContext* cx, const char (&input)[N], JS::MutableHandleValue vp)
{
AutoInflatedString str(cx);
str = input;
CHECK(JS_ParseJSON(cx, str.chars(), str.length(), vp));
return true;
}
template<size_t N> inline bool
TryParse(JSContext* cx, const char (&input)[N], JS::HandleValue expected)
{
AutoInflatedString str(cx);
RootedValue v(cx);
str = input;
CHECK(JS_ParseJSON(cx, str.chars(), str.length(), &v));
CHECK_SAME(v, expected);
return true;
}
END_TEST(testParseJSON_success)
BEGIN_TEST(testParseJSON_error)
{
CHECK(Error(cx, "" , 1, 1));
CHECK(Error(cx, "\n" , 2, 1));
CHECK(Error(cx, "\r" , 2, 1));
CHECK(Error(cx, "\r\n" , 2, 1));
CHECK(Error(cx, "[" , 1, 2));
CHECK(Error(cx, "[,]" , 1, 2));
CHECK(Error(cx, "[1,]" , 1, 4));
CHECK(Error(cx, "{a:2}" , 1, 2));
CHECK(Error(cx, "{\"a\":2,}" , 1, 8));
CHECK(Error(cx, "]" , 1, 1));
CHECK(Error(cx, "\"" , 1, 2));
CHECK(Error(cx, "{]" , 1, 2));
CHECK(Error(cx, "[}" , 1, 2));
CHECK(Error(cx, "'wrongly-quoted string'" , 1, 1));
CHECK(Error(cx, "{\"a\":2 \n b:3}" , 2, 2));
CHECK(Error(cx, "\n[" , 2, 2));
CHECK(Error(cx, "\n[,]" , 2, 2));
CHECK(Error(cx, "\n[1,]" , 2, 4));
CHECK(Error(cx, "\n{a:2}" , 2, 2));
CHECK(Error(cx, "\n{\"a\":2,}" , 2, 8));
CHECK(Error(cx, "\n]" , 2, 1));
CHECK(Error(cx, "\"bad string\n\"" , 1, 12));
CHECK(Error(cx, "\r'wrongly-quoted string'" , 2, 1));
CHECK(Error(cx, "\n\"" , 2, 2));
CHECK(Error(cx, "\n{]" , 2, 2));
CHECK(Error(cx, "\n[}" , 2, 2));
CHECK(Error(cx, "{\"a\":[2,3],\n\"b\":,5,6}" , 2, 5));
CHECK(Error(cx, "{\"a\":2 \r b:3}" , 2, 2));
CHECK(Error(cx, "\r[" , 2, 2));
CHECK(Error(cx, "\r[,]" , 2, 2));
CHECK(Error(cx, "\r[1,]" , 2, 4));
CHECK(Error(cx, "\r{a:2}" , 2, 2));
CHECK(Error(cx, "\r{\"a\":2,}" , 2, 8));
CHECK(Error(cx, "\r]" , 2, 1));
CHECK(Error(cx, "\"bad string\r\"" , 1, 12));
CHECK(Error(cx, "\r'wrongly-quoted string'" , 2, 1));
CHECK(Error(cx, "\r\"" , 2, 2));
CHECK(Error(cx, "\r{]" , 2, 2));
CHECK(Error(cx, "\r[}" , 2, 2));
CHECK(Error(cx, "{\"a\":[2,3],\r\"b\":,5,6}" , 2, 5));
CHECK(Error(cx, "{\"a\":2 \r\n b:3}" , 2, 2));
CHECK(Error(cx, "\r\n[" , 2, 2));
CHECK(Error(cx, "\r\n[,]" , 2, 2));
CHECK(Error(cx, "\r\n[1,]" , 2, 4));
CHECK(Error(cx, "\r\n{a:2}" , 2, 2));
CHECK(Error(cx, "\r\n{\"a\":2,}" , 2, 8));
CHECK(Error(cx, "\r\n]" , 2, 1));
CHECK(Error(cx, "\"bad string\r\n\"" , 1, 12));
CHECK(Error(cx, "\r\n'wrongly-quoted string'" , 2, 1));
CHECK(Error(cx, "\r\n\"" , 2, 2));
CHECK(Error(cx, "\r\n{]" , 2, 2));
CHECK(Error(cx, "\r\n[}" , 2, 2));
CHECK(Error(cx, "{\"a\":[2,3],\r\n\"b\":,5,6}" , 2, 5));
CHECK(Error(cx, "\n\"bad string\n\"" , 2, 12));
CHECK(Error(cx, "\r\"bad string\r\"" , 2, 12));
CHECK(Error(cx, "\r\n\"bad string\r\n\"" , 2, 12));
CHECK(Error(cx, "{\n\"a\":[2,3],\r\"b\":,5,6}" , 3, 5));
CHECK(Error(cx, "{\r\"a\":[2,3],\n\"b\":,5,6}" , 3, 5));
CHECK(Error(cx, "[\"\\t\\q" , 1, 6));
CHECK(Error(cx, "[\"\\t\x00" , 1, 5));
CHECK(Error(cx, "[\"\\t\x01" , 1, 5));
CHECK(Error(cx, "[\"\\t\\\x00" , 1, 6));
CHECK(Error(cx, "[\"\\t\\\x01" , 1, 6));
// Unicode escape errors are messy. The first bad character could be
// non-hexadecimal, or it could be absent entirely. Include tests where
// there's a bad character, followed by zero to as many characters as are
// needed to form a complete Unicode escape sequence, plus one. (The extra
// characters beyond are valuable because our implementation checks for
// too-few subsequent characters first, before checking for subsequent
// non-hexadecimal characters. So \u<END>, \u0<END>, \u00<END>, and
// \u000<END> are all *detected* as invalid by the same code path, but the
// process of computing the first invalid character follows a different
// code path for each. And \uQQQQ, \u0QQQ, \u00QQ, and \u000Q are detected
// as invalid by the same code path [ignoring which precise subexpression
// triggers failure of a single condition], but the computation of the
// first invalid character follows a different code path for each.)
CHECK(Error(cx, "[\"\\t\\u" , 1, 7));
CHECK(Error(cx, "[\"\\t\\uZ" , 1, 7));
CHECK(Error(cx, "[\"\\t\\uZZ" , 1, 7));
CHECK(Error(cx, "[\"\\t\\uZZZ" , 1, 7));
CHECK(Error(cx, "[\"\\t\\uZZZZ" , 1, 7));
CHECK(Error(cx, "[\"\\t\\uZZZZZ" , 1, 7));
CHECK(Error(cx, "[\"\\t\\u0" , 1, 8));
CHECK(Error(cx, "[\"\\t\\u0Z" , 1, 8));
CHECK(Error(cx, "[\"\\t\\u0ZZ" , 1, 8));
CHECK(Error(cx, "[\"\\t\\u0ZZZ" , 1, 8));
CHECK(Error(cx, "[\"\\t\\u0ZZZZ" , 1, 8));
CHECK(Error(cx, "[\"\\t\\u00" , 1, 9));
CHECK(Error(cx, "[\"\\t\\u00Z" , 1, 9));
CHECK(Error(cx, "[\"\\t\\u00ZZ" , 1, 9));
CHECK(Error(cx, "[\"\\t\\u00ZZZ" , 1, 9));
CHECK(Error(cx, "[\"\\t\\u000" , 1, 10));
CHECK(Error(cx, "[\"\\t\\u000Z" , 1, 10));
CHECK(Error(cx, "[\"\\t\\u000ZZ" , 1, 10));
return true;
}
template<size_t N> inline bool
Error(JSContext* cx, const char (&input)[N], uint32_t expectedLine,
uint32_t expectedColumn)
{
AutoInflatedString str(cx);
RootedValue dummy(cx);
str = input;
bool ok = JS_ParseJSON(cx, str.chars(), str.length(), &dummy);
CHECK(!ok);
RootedValue exn(cx);
CHECK(JS_GetPendingException(cx, &exn));
JS_ClearPendingException(cx);
js::ErrorReport report(cx);
CHECK(report.init(cx, exn, js::ErrorReport::WithSideEffects));
CHECK(report.report()->errorNumber == JSMSG_JSON_BAD_PARSE);
const char* lineAndColumnASCII = JS_smprintf("line %d column %d", expectedLine, expectedColumn);
CHECK(strstr(report.toStringResult().c_str(), lineAndColumnASCII) != nullptr);
js_free((void*)lineAndColumnASCII);
/* We do not execute JS, so there should be no exception thrown. */
CHECK(!JS_IsExceptionPending(cx));
return true;
}
END_TEST(testParseJSON_error)
static bool
Censor(JSContext* cx, unsigned argc, JS::Value* vp)
{
JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
MOZ_RELEASE_ASSERT(args.length() == 2);
MOZ_RELEASE_ASSERT(args[0].isString());
args.rval().setNull();
return true;
}
BEGIN_TEST(testParseJSON_reviver)
{
JSFunction* fun = JS_NewFunction(cx, Censor, 0, 0, "censor");
CHECK(fun);
JS::RootedValue filter(cx, JS::ObjectValue(*JS_GetFunctionObject(fun)));
CHECK(TryParse(cx, "true", filter));
CHECK(TryParse(cx, "false", filter));
CHECK(TryParse(cx, "null", filter));
CHECK(TryParse(cx, "1", filter));
CHECK(TryParse(cx, "1.75", filter));
CHECK(TryParse(cx, "[]", filter));
CHECK(TryParse(cx, "[1]", filter));
CHECK(TryParse(cx, "{}", filter));
return true;
}
template<size_t N> inline bool
TryParse(JSContext* cx, const char (&input)[N], JS::HandleValue filter)
{
AutoInflatedString str(cx);
JS::RootedValue v(cx);
str = input;
CHECK(JS_ParseJSONWithReviver(cx, str.chars(), str.length(), filter, &v));
CHECK(v.isNull());
return true;
}
END_TEST(testParseJSON_reviver)
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