forked from mirrors/gecko-dev
bcbdcb14bb
This changes JS_smprintf to return UniqueChars, rather than relying on manual memory management. MozReview-Commit-ID: ENjQJODYdD1 --HG-- extra : rebase_source : 4c8ad4719dce205a7ef25e41eca25c5af793bb47
357 lines
13 KiB
C++
357 lines
13 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* vim: set ts=8 sts=4 et sw=4 tw=99:
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include <limits>
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#include <string.h>
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#include "jsprf.h"
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#include "jsstr.h"
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#include "jsapi-tests/tests.h"
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using namespace js;
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class AutoInflatedString {
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JSContext * const cx;
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char16_t* chars_;
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size_t length_;
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public:
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explicit AutoInflatedString(JSContext* cx) : cx(cx), chars_(nullptr), length_(0) { }
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~AutoInflatedString() {
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JS_free(cx, chars_);
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}
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template<size_t N> void operator=(const char (&str)[N]) {
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length_ = N - 1;
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chars_ = InflateString(cx, str, &length_);
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if (!chars_)
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abort();
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}
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void operator=(const char* str) {
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length_ = strlen(str);
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chars_ = InflateString(cx, str, &length_);
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if (!chars_)
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abort();
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}
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const char16_t* chars() const { return chars_; }
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size_t length() const { return length_; }
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};
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BEGIN_TEST(testParseJSON_success)
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{
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// Primitives
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JS::RootedValue expected(cx);
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expected = JS::TrueValue();
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CHECK(TryParse(cx, "true", expected));
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expected = JS::FalseValue();
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CHECK(TryParse(cx, "false", expected));
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expected = JS::NullValue();
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CHECK(TryParse(cx, "null", expected));
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expected.setInt32(0);
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CHECK(TryParse(cx, "0", expected));
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expected.setInt32(1);
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CHECK(TryParse(cx, "1", expected));
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expected.setInt32(-1);
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CHECK(TryParse(cx, "-1", expected));
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expected.setDouble(1);
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CHECK(TryParse(cx, "1", expected));
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expected.setDouble(1.75);
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CHECK(TryParse(cx, "1.75", expected));
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expected.setDouble(9e9);
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CHECK(TryParse(cx, "9e9", expected));
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expected.setDouble(std::numeric_limits<double>::infinity());
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CHECK(TryParse(cx, "9e99999", expected));
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JS::Rooted<JSFlatString*> str(cx);
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const char16_t emptystr[] = { '\0' };
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str = js::NewStringCopyN<CanGC>(cx, emptystr, 0);
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CHECK(str);
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expected = JS::StringValue(str);
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CHECK(TryParse(cx, "\"\"", expected));
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const char16_t nullstr[] = { '\0' };
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str = NewString(cx, nullstr);
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CHECK(str);
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expected = JS::StringValue(str);
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CHECK(TryParse(cx, "\"\\u0000\"", expected));
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const char16_t backstr[] = { '\b' };
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str = NewString(cx, backstr);
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CHECK(str);
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expected = JS::StringValue(str);
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CHECK(TryParse(cx, "\"\\b\"", expected));
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CHECK(TryParse(cx, "\"\\u0008\"", expected));
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const char16_t newlinestr[] = { '\n', };
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str = NewString(cx, newlinestr);
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CHECK(str);
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expected = JS::StringValue(str);
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CHECK(TryParse(cx, "\"\\n\"", expected));
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CHECK(TryParse(cx, "\"\\u000A\"", expected));
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// Arrays
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JS::RootedValue v(cx), v2(cx);
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JS::RootedObject obj(cx);
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bool isArray;
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CHECK(Parse(cx, "[]", &v));
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CHECK(v.isObject());
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obj = &v.toObject();
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CHECK(JS_IsArrayObject(cx, obj, &isArray));
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CHECK(isArray);
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CHECK(JS_GetProperty(cx, obj, "length", &v2));
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CHECK(v2.isInt32(0));
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CHECK(Parse(cx, "[1]", &v));
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CHECK(v.isObject());
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obj = &v.toObject();
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CHECK(JS_IsArrayObject(cx, obj, &isArray));
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CHECK(isArray);
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CHECK(JS_GetProperty(cx, obj, "0", &v2));
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CHECK(v2.isInt32(1));
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CHECK(JS_GetProperty(cx, obj, "length", &v2));
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CHECK(v2.isInt32(1));
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// Objects
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CHECK(Parse(cx, "{}", &v));
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CHECK(v.isObject());
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obj = &v.toObject();
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CHECK(JS_IsArrayObject(cx, obj, &isArray));
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CHECK(!isArray);
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CHECK(Parse(cx, "{ \"f\": 17 }", &v));
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CHECK(v.isObject());
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obj = &v.toObject();
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CHECK(JS_IsArrayObject(cx, obj, &isArray));
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CHECK(!isArray);
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CHECK(JS_GetProperty(cx, obj, "f", &v2));
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CHECK(v2.isInt32(17));
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return true;
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}
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template<size_t N> static JSFlatString*
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NewString(JSContext* cx, const char16_t (&chars)[N])
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{
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return js::NewStringCopyN<CanGC>(cx, chars, N);
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}
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template<size_t N> inline bool
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Parse(JSContext* cx, const char (&input)[N], JS::MutableHandleValue vp)
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{
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AutoInflatedString str(cx);
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str = input;
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CHECK(JS_ParseJSON(cx, str.chars(), str.length(), vp));
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return true;
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}
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template<size_t N> inline bool
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TryParse(JSContext* cx, const char (&input)[N], JS::HandleValue expected)
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{
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AutoInflatedString str(cx);
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RootedValue v(cx);
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str = input;
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CHECK(JS_ParseJSON(cx, str.chars(), str.length(), &v));
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CHECK_SAME(v, expected);
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return true;
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}
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END_TEST(testParseJSON_success)
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BEGIN_TEST(testParseJSON_error)
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{
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CHECK(Error(cx, "" , 1, 1));
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CHECK(Error(cx, "\n" , 2, 1));
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CHECK(Error(cx, "\r" , 2, 1));
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CHECK(Error(cx, "\r\n" , 2, 1));
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CHECK(Error(cx, "[" , 1, 2));
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CHECK(Error(cx, "[,]" , 1, 2));
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CHECK(Error(cx, "[1,]" , 1, 4));
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CHECK(Error(cx, "{a:2}" , 1, 2));
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CHECK(Error(cx, "{\"a\":2,}" , 1, 8));
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CHECK(Error(cx, "]" , 1, 1));
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CHECK(Error(cx, "\"" , 1, 2));
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CHECK(Error(cx, "{]" , 1, 2));
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CHECK(Error(cx, "[}" , 1, 2));
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CHECK(Error(cx, "'wrongly-quoted string'" , 1, 1));
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CHECK(Error(cx, "{\"a\":2 \n b:3}" , 2, 2));
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CHECK(Error(cx, "\n[" , 2, 2));
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CHECK(Error(cx, "\n[,]" , 2, 2));
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CHECK(Error(cx, "\n[1,]" , 2, 4));
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CHECK(Error(cx, "\n{a:2}" , 2, 2));
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CHECK(Error(cx, "\n{\"a\":2,}" , 2, 8));
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CHECK(Error(cx, "\n]" , 2, 1));
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CHECK(Error(cx, "\"bad string\n\"" , 1, 12));
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CHECK(Error(cx, "\r'wrongly-quoted string'" , 2, 1));
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CHECK(Error(cx, "\n\"" , 2, 2));
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CHECK(Error(cx, "\n{]" , 2, 2));
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CHECK(Error(cx, "\n[}" , 2, 2));
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CHECK(Error(cx, "{\"a\":[2,3],\n\"b\":,5,6}" , 2, 5));
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CHECK(Error(cx, "{\"a\":2 \r b:3}" , 2, 2));
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CHECK(Error(cx, "\r[" , 2, 2));
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CHECK(Error(cx, "\r[,]" , 2, 2));
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CHECK(Error(cx, "\r[1,]" , 2, 4));
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CHECK(Error(cx, "\r{a:2}" , 2, 2));
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CHECK(Error(cx, "\r{\"a\":2,}" , 2, 8));
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CHECK(Error(cx, "\r]" , 2, 1));
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CHECK(Error(cx, "\"bad string\r\"" , 1, 12));
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CHECK(Error(cx, "\r'wrongly-quoted string'" , 2, 1));
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CHECK(Error(cx, "\r\"" , 2, 2));
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CHECK(Error(cx, "\r{]" , 2, 2));
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CHECK(Error(cx, "\r[}" , 2, 2));
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CHECK(Error(cx, "{\"a\":[2,3],\r\"b\":,5,6}" , 2, 5));
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CHECK(Error(cx, "{\"a\":2 \r\n b:3}" , 2, 2));
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CHECK(Error(cx, "\r\n[" , 2, 2));
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CHECK(Error(cx, "\r\n[,]" , 2, 2));
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CHECK(Error(cx, "\r\n[1,]" , 2, 4));
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CHECK(Error(cx, "\r\n{a:2}" , 2, 2));
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CHECK(Error(cx, "\r\n{\"a\":2,}" , 2, 8));
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CHECK(Error(cx, "\r\n]" , 2, 1));
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CHECK(Error(cx, "\"bad string\r\n\"" , 1, 12));
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CHECK(Error(cx, "\r\n'wrongly-quoted string'" , 2, 1));
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CHECK(Error(cx, "\r\n\"" , 2, 2));
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CHECK(Error(cx, "\r\n{]" , 2, 2));
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CHECK(Error(cx, "\r\n[}" , 2, 2));
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CHECK(Error(cx, "{\"a\":[2,3],\r\n\"b\":,5,6}" , 2, 5));
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CHECK(Error(cx, "\n\"bad string\n\"" , 2, 12));
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CHECK(Error(cx, "\r\"bad string\r\"" , 2, 12));
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CHECK(Error(cx, "\r\n\"bad string\r\n\"" , 2, 12));
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CHECK(Error(cx, "{\n\"a\":[2,3],\r\"b\":,5,6}" , 3, 5));
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CHECK(Error(cx, "{\r\"a\":[2,3],\n\"b\":,5,6}" , 3, 5));
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CHECK(Error(cx, "[\"\\t\\q" , 1, 6));
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CHECK(Error(cx, "[\"\\t\x00" , 1, 5));
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CHECK(Error(cx, "[\"\\t\x01" , 1, 5));
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CHECK(Error(cx, "[\"\\t\\\x00" , 1, 6));
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CHECK(Error(cx, "[\"\\t\\\x01" , 1, 6));
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// Unicode escape errors are messy. The first bad character could be
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// non-hexadecimal, or it could be absent entirely. Include tests where
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// there's a bad character, followed by zero to as many characters as are
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// needed to form a complete Unicode escape sequence, plus one. (The extra
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// characters beyond are valuable because our implementation checks for
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// too-few subsequent characters first, before checking for subsequent
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// non-hexadecimal characters. So \u<END>, \u0<END>, \u00<END>, and
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// \u000<END> are all *detected* as invalid by the same code path, but the
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// process of computing the first invalid character follows a different
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// code path for each. And \uQQQQ, \u0QQQ, \u00QQ, and \u000Q are detected
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// as invalid by the same code path [ignoring which precise subexpression
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// triggers failure of a single condition], but the computation of the
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// first invalid character follows a different code path for each.)
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CHECK(Error(cx, "[\"\\t\\u" , 1, 7));
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CHECK(Error(cx, "[\"\\t\\uZ" , 1, 7));
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CHECK(Error(cx, "[\"\\t\\uZZ" , 1, 7));
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CHECK(Error(cx, "[\"\\t\\uZZZ" , 1, 7));
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CHECK(Error(cx, "[\"\\t\\uZZZZ" , 1, 7));
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CHECK(Error(cx, "[\"\\t\\uZZZZZ" , 1, 7));
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CHECK(Error(cx, "[\"\\t\\u0" , 1, 8));
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CHECK(Error(cx, "[\"\\t\\u0Z" , 1, 8));
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CHECK(Error(cx, "[\"\\t\\u0ZZ" , 1, 8));
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CHECK(Error(cx, "[\"\\t\\u0ZZZ" , 1, 8));
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CHECK(Error(cx, "[\"\\t\\u0ZZZZ" , 1, 8));
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CHECK(Error(cx, "[\"\\t\\u00" , 1, 9));
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CHECK(Error(cx, "[\"\\t\\u00Z" , 1, 9));
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CHECK(Error(cx, "[\"\\t\\u00ZZ" , 1, 9));
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CHECK(Error(cx, "[\"\\t\\u00ZZZ" , 1, 9));
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CHECK(Error(cx, "[\"\\t\\u000" , 1, 10));
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CHECK(Error(cx, "[\"\\t\\u000Z" , 1, 10));
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CHECK(Error(cx, "[\"\\t\\u000ZZ" , 1, 10));
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return true;
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}
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template<size_t N> inline bool
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Error(JSContext* cx, const char (&input)[N], uint32_t expectedLine,
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uint32_t expectedColumn)
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{
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AutoInflatedString str(cx);
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RootedValue dummy(cx);
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str = input;
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bool ok = JS_ParseJSON(cx, str.chars(), str.length(), &dummy);
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CHECK(!ok);
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RootedValue exn(cx);
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CHECK(JS_GetPendingException(cx, &exn));
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JS_ClearPendingException(cx);
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js::ErrorReport report(cx);
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CHECK(report.init(cx, exn, js::ErrorReport::WithSideEffects));
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CHECK(report.report()->errorNumber == JSMSG_JSON_BAD_PARSE);
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UniqueChars lineAndColumnASCII = JS_smprintf("line %d column %d", expectedLine, expectedColumn);
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CHECK(strstr(report.toStringResult().c_str(), lineAndColumnASCII.get()) != nullptr);
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/* We do not execute JS, so there should be no exception thrown. */
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CHECK(!JS_IsExceptionPending(cx));
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return true;
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}
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END_TEST(testParseJSON_error)
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static bool
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Censor(JSContext* cx, unsigned argc, JS::Value* vp)
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{
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JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
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MOZ_RELEASE_ASSERT(args.length() == 2);
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MOZ_RELEASE_ASSERT(args[0].isString());
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args.rval().setNull();
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return true;
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}
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BEGIN_TEST(testParseJSON_reviver)
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{
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JSFunction* fun = JS_NewFunction(cx, Censor, 0, 0, "censor");
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CHECK(fun);
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JS::RootedValue filter(cx, JS::ObjectValue(*JS_GetFunctionObject(fun)));
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CHECK(TryParse(cx, "true", filter));
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CHECK(TryParse(cx, "false", filter));
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CHECK(TryParse(cx, "null", filter));
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CHECK(TryParse(cx, "1", filter));
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CHECK(TryParse(cx, "1.75", filter));
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CHECK(TryParse(cx, "[]", filter));
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CHECK(TryParse(cx, "[1]", filter));
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CHECK(TryParse(cx, "{}", filter));
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return true;
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}
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template<size_t N> inline bool
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TryParse(JSContext* cx, const char (&input)[N], JS::HandleValue filter)
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{
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AutoInflatedString str(cx);
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JS::RootedValue v(cx);
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str = input;
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CHECK(JS_ParseJSONWithReviver(cx, str.chars(), str.length(), filter, &v));
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CHECK(v.isNull());
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return true;
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}
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END_TEST(testParseJSON_reviver)
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