mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-05 00:25:27 +00:00
540 lines
12 KiB
C++
540 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* 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 "mozilla/Assertions.h"
|
|
#include "mozilla/JSONWriter.h"
|
|
#include "mozilla/UniquePtr.h"
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
using mozilla::JSONWriteFunc;
|
|
using mozilla::JSONWriter;
|
|
using mozilla::MakeUnique;
|
|
|
|
// This writes all the output into a big buffer.
|
|
struct StringWriteFunc : public JSONWriteFunc
|
|
{
|
|
const static size_t kLen = 100000;
|
|
char mBuf[kLen];
|
|
char* mPtr;
|
|
|
|
StringWriteFunc() : mPtr(mBuf) {}
|
|
|
|
void Write(const char* aStr)
|
|
{
|
|
char* last = mPtr + strlen(aStr); // where the nul will be added
|
|
|
|
// If you change this test and this assertion fails, just make kLen bigger.
|
|
MOZ_RELEASE_ASSERT(last < mBuf + kLen);
|
|
sprintf(mPtr, "%s", aStr);
|
|
mPtr = last;
|
|
}
|
|
};
|
|
|
|
void Check(JSONWriteFunc* aFunc, const char* aExpected)
|
|
{
|
|
const char* actual = static_cast<StringWriteFunc*>(aFunc)->mBuf;
|
|
if (strcmp(aExpected, actual) != 0) {
|
|
fprintf(stderr,
|
|
"---- EXPECTED ----\n<<<%s>>>\n"
|
|
"---- ACTUAL ----\n<<<%s>>>\n",
|
|
aExpected, actual);
|
|
MOZ_RELEASE_ASSERT(false, "expected and actual output don't match");
|
|
}
|
|
}
|
|
|
|
// Note: to convert actual output into |expected| strings that C++ can handle,
|
|
// apply the following substitutions, in order, to each line.
|
|
// - s/\\/\\\\/g # escapes backslashes
|
|
// - s/"/\\"/g # escapes quotes
|
|
// - s/$/\\n\\/ # adds a newline and string continuation char to each line
|
|
|
|
void TestBasicProperties()
|
|
{
|
|
const char* expected = "\
|
|
{\n\
|
|
\"null\": null,\n\
|
|
\"bool1\": true,\n\
|
|
\"bool2\": false,\n\
|
|
\"int1\": 123,\n\
|
|
\"int2\": -123,\n\
|
|
\"int3\": -123456789000,\n\
|
|
\"double1\": 1.2345,\n\
|
|
\"double2\": -3,\n\
|
|
\"double3\": 1e-7,\n\
|
|
\"double4\": 1.1111111111111111e+21,\n\
|
|
\"string1\": \"\",\n\
|
|
\"string2\": \"1234\",\n\
|
|
\"string3\": \"hello\",\n\
|
|
\"string4\": \"\\\" \\\\ \\u0007 \\b \\t \\n \\u000b \\f \\r\",\n\
|
|
\"len 0 array, multi-line\": [\n\
|
|
],\n\
|
|
\"len 0 array, single-line\": [],\n\
|
|
\"len 1 array\": [\n\
|
|
1\n\
|
|
],\n\
|
|
\"len 5 array, multi-line\": [\n\
|
|
1,\n\
|
|
2,\n\
|
|
3,\n\
|
|
4,\n\
|
|
5\n\
|
|
],\n\
|
|
\"len 3 array, single-line\": [1, [{}, 2, []], 3],\n\
|
|
\"len 0 object, multi-line\": {\n\
|
|
},\n\
|
|
\"len 0 object, single-line\": {},\n\
|
|
\"len 1 object\": {\n\
|
|
\"one\": 1\n\
|
|
},\n\
|
|
\"len 5 object\": {\n\
|
|
\"one\": 1,\n\
|
|
\"two\": 2,\n\
|
|
\"three\": 3,\n\
|
|
\"four\": 4,\n\
|
|
\"five\": 5\n\
|
|
},\n\
|
|
\"len 3 object, single-line\": {\"a\": 1, \"b\": [{}, 2, []], \"c\": 3}\n\
|
|
}\n\
|
|
";
|
|
|
|
JSONWriter w(MakeUnique<StringWriteFunc>());
|
|
|
|
w.Start();
|
|
{
|
|
w.NullProperty("null");
|
|
|
|
w.BoolProperty("bool1", true);
|
|
w.BoolProperty("bool2", false);
|
|
|
|
w.IntProperty("int1", 123);
|
|
w.IntProperty("int2", -0x7b);
|
|
w.IntProperty("int3", -123456789000ll);
|
|
|
|
w.DoubleProperty("double1", 1.2345);
|
|
w.DoubleProperty("double2", -3);
|
|
w.DoubleProperty("double3", 1e-7);
|
|
w.DoubleProperty("double4", 1.1111111111111111e+21);
|
|
|
|
w.StringProperty("string1", "");
|
|
w.StringProperty("string2", "1234");
|
|
w.StringProperty("string3", "hello");
|
|
w.StringProperty("string4", "\" \\ \a \b \t \n \v \f \r");
|
|
|
|
w.StartArrayProperty("len 0 array, multi-line", w.MultiLineStyle);
|
|
w.EndArray();
|
|
|
|
w.StartArrayProperty("len 0 array, single-line", w.SingleLineStyle);
|
|
w.EndArray();
|
|
|
|
w.StartArrayProperty("len 1 array");
|
|
{
|
|
w.IntElement(1);
|
|
}
|
|
w.EndArray();
|
|
|
|
w.StartArrayProperty("len 5 array, multi-line", w.MultiLineStyle);
|
|
{
|
|
w.IntElement(1);
|
|
w.IntElement(2);
|
|
w.IntElement(3);
|
|
w.IntElement(4);
|
|
w.IntElement(5);
|
|
}
|
|
w.EndArray();
|
|
|
|
w.StartArrayProperty("len 3 array, single-line", w.SingleLineStyle);
|
|
{
|
|
w.IntElement(1);
|
|
w.StartArrayElement();
|
|
{
|
|
w.StartObjectElement(w.SingleLineStyle);
|
|
w.EndObject();
|
|
|
|
w.IntElement(2);
|
|
|
|
w.StartArrayElement(w.MultiLineStyle); // style overridden from above
|
|
w.EndArray();
|
|
}
|
|
w.EndArray();
|
|
w.IntElement(3);
|
|
}
|
|
w.EndArray();
|
|
|
|
w.StartObjectProperty("len 0 object, multi-line");
|
|
w.EndObject();
|
|
|
|
w.StartObjectProperty("len 0 object, single-line", w.SingleLineStyle);
|
|
w.EndObject();
|
|
|
|
w.StartObjectProperty("len 1 object");
|
|
{
|
|
w.IntProperty("one", 1);
|
|
}
|
|
w.EndObject();
|
|
|
|
w.StartObjectProperty("len 5 object");
|
|
{
|
|
w.IntProperty("one", 1);
|
|
w.IntProperty("two", 2);
|
|
w.IntProperty("three", 3);
|
|
w.IntProperty("four", 4);
|
|
w.IntProperty("five", 5);
|
|
}
|
|
w.EndObject();
|
|
|
|
w.StartObjectProperty("len 3 object, single-line", w.SingleLineStyle);
|
|
{
|
|
w.IntProperty("a", 1);
|
|
w.StartArrayProperty("b");
|
|
{
|
|
w.StartObjectElement();
|
|
w.EndObject();
|
|
|
|
w.IntElement(2);
|
|
|
|
w.StartArrayElement(w.SingleLineStyle);
|
|
w.EndArray();
|
|
}
|
|
w.EndArray();
|
|
w.IntProperty("c", 3);
|
|
}
|
|
w.EndObject();
|
|
}
|
|
w.End();
|
|
|
|
Check(w.WriteFunc(), expected);
|
|
}
|
|
|
|
void TestBasicElements()
|
|
{
|
|
const char* expected = "\
|
|
{\n\
|
|
\"array\": [\n\
|
|
null,\n\
|
|
true,\n\
|
|
false,\n\
|
|
123,\n\
|
|
-123,\n\
|
|
-123456789000,\n\
|
|
1.2345,\n\
|
|
-3,\n\
|
|
1e-7,\n\
|
|
1.1111111111111111e+21,\n\
|
|
\"\",\n\
|
|
\"1234\",\n\
|
|
\"hello\",\n\
|
|
\"\\\" \\\\ \\u0007 \\b \\t \\n \\u000b \\f \\r\",\n\
|
|
[\n\
|
|
],\n\
|
|
[],\n\
|
|
[\n\
|
|
1\n\
|
|
],\n\
|
|
[\n\
|
|
1,\n\
|
|
2,\n\
|
|
3,\n\
|
|
4,\n\
|
|
5\n\
|
|
],\n\
|
|
[1, [{}, 2, []], 3],\n\
|
|
{\n\
|
|
},\n\
|
|
{},\n\
|
|
{\n\
|
|
\"one\": 1\n\
|
|
},\n\
|
|
{\n\
|
|
\"one\": 1,\n\
|
|
\"two\": 2,\n\
|
|
\"three\": 3,\n\
|
|
\"four\": 4,\n\
|
|
\"five\": 5\n\
|
|
},\n\
|
|
{\"a\": 1, \"b\": [{}, 2, []], \"c\": 3}\n\
|
|
]\n\
|
|
}\n\
|
|
";
|
|
|
|
JSONWriter w(MakeUnique<StringWriteFunc>());
|
|
|
|
w.Start();
|
|
w.StartArrayProperty("array");
|
|
{
|
|
w.NullElement();
|
|
|
|
w.BoolElement(true);
|
|
w.BoolElement(false);
|
|
|
|
w.IntElement(123);
|
|
w.IntElement(-0x7b);
|
|
w.IntElement(-123456789000ll);
|
|
|
|
w.DoubleElement(1.2345);
|
|
w.DoubleElement(-3);
|
|
w.DoubleElement(1e-7);
|
|
w.DoubleElement(1.1111111111111111e+21);
|
|
|
|
w.StringElement("");
|
|
w.StringElement("1234");
|
|
w.StringElement("hello");
|
|
w.StringElement("\" \\ \a \b \t \n \v \f \r");
|
|
|
|
w.StartArrayElement();
|
|
w.EndArray();
|
|
|
|
w.StartArrayElement(w.SingleLineStyle);
|
|
w.EndArray();
|
|
|
|
w.StartArrayElement();
|
|
{
|
|
w.IntElement(1);
|
|
}
|
|
w.EndArray();
|
|
|
|
w.StartArrayElement();
|
|
{
|
|
w.IntElement(1);
|
|
w.IntElement(2);
|
|
w.IntElement(3);
|
|
w.IntElement(4);
|
|
w.IntElement(5);
|
|
}
|
|
w.EndArray();
|
|
|
|
w.StartArrayElement(w.SingleLineStyle);
|
|
{
|
|
w.IntElement(1);
|
|
w.StartArrayElement();
|
|
{
|
|
w.StartObjectElement(w.SingleLineStyle);
|
|
w.EndObject();
|
|
|
|
w.IntElement(2);
|
|
|
|
w.StartArrayElement(w.MultiLineStyle); // style overridden from above
|
|
w.EndArray();
|
|
}
|
|
w.EndArray();
|
|
w.IntElement(3);
|
|
}
|
|
w.EndArray();
|
|
|
|
w.StartObjectElement();
|
|
w.EndObject();
|
|
|
|
w.StartObjectElement(w.SingleLineStyle);
|
|
w.EndObject();
|
|
|
|
w.StartObjectElement();
|
|
{
|
|
w.IntProperty("one", 1);
|
|
}
|
|
w.EndObject();
|
|
|
|
w.StartObjectElement();
|
|
{
|
|
w.IntProperty("one", 1);
|
|
w.IntProperty("two", 2);
|
|
w.IntProperty("three", 3);
|
|
w.IntProperty("four", 4);
|
|
w.IntProperty("five", 5);
|
|
}
|
|
w.EndObject();
|
|
|
|
w.StartObjectElement(w.SingleLineStyle);
|
|
{
|
|
w.IntProperty("a", 1);
|
|
w.StartArrayProperty("b");
|
|
{
|
|
w.StartObjectElement();
|
|
w.EndObject();
|
|
|
|
w.IntElement(2);
|
|
|
|
w.StartArrayElement(w.SingleLineStyle);
|
|
w.EndArray();
|
|
}
|
|
w.EndArray();
|
|
w.IntProperty("c", 3);
|
|
}
|
|
w.EndObject();
|
|
}
|
|
w.EndArray();
|
|
w.End();
|
|
|
|
Check(w.WriteFunc(), expected);
|
|
}
|
|
|
|
void TestOneLineObject()
|
|
{
|
|
const char* expected = "\
|
|
{\"i\": 1, \"array\": [null, [{}], {\"o\": {}}, \"s\"], \"d\": 3.33}\n\
|
|
";
|
|
|
|
JSONWriter w(MakeUnique<StringWriteFunc>());
|
|
|
|
w.Start(w.SingleLineStyle);
|
|
|
|
w.IntProperty("i", 1);
|
|
|
|
w.StartArrayProperty("array");
|
|
{
|
|
w.NullElement();
|
|
|
|
w.StartArrayElement(w.MultiLineStyle); // style overridden from above
|
|
{
|
|
w.StartObjectElement();
|
|
w.EndObject();
|
|
}
|
|
w.EndArray();
|
|
|
|
w.StartObjectElement();
|
|
{
|
|
w.StartObjectProperty("o");
|
|
w.EndObject();
|
|
}
|
|
w.EndObject();
|
|
|
|
w.StringElement("s");
|
|
}
|
|
w.EndArray();
|
|
|
|
w.DoubleProperty("d", 3.33);
|
|
|
|
w.End();
|
|
|
|
Check(w.WriteFunc(), expected);
|
|
}
|
|
|
|
void TestStringEscaping()
|
|
{
|
|
// This test uses hexadecimal character escapes because UTF8 literals cause
|
|
// problems for some compilers (see bug 1069726).
|
|
const char* expected = "\
|
|
{\n\
|
|
\"ascii\": \"\x7F~}|{zyxwvutsrqponmlkjihgfedcba`_^]\\\\[ZYXWVUTSRQPONMLKJIHGFEDCBA@?>=<;:9876543210/.-,+*)('&%$#\\\"! \\u001f\\u001e\\u001d\\u001c\\u001b\\u001a\\u0019\\u0018\\u0017\\u0016\\u0015\\u0014\\u0013\\u0012\\u0011\\u0010\\u000f\\u000e\\r\\f\\u000b\\n\\t\\b\\u0007\\u0006\\u0005\\u0004\\u0003\\u0002\\u0001\",\n\
|
|
\"\xD9\x85\xD8\xB1\xD8\xAD\xD8\xA8\xD8\xA7 \xD9\x87\xD9\x86\xD8\xA7\xD9\x83\": true,\n\
|
|
\"\xD5\xA2\xD5\xA1\xD6\x80\xD5\xA5\xD6\x82 \xD5\xB9\xD5\xAF\xD5\xA1\": -123,\n\
|
|
\"\xE4\xBD\xA0\xE5\xA5\xBD\": 1.234,\n\
|
|
\"\xCE\xB3\xCE\xB5\xCE\xB9\xCE\xB1 \xCE\xB5\xCE\xBA\xCE\xB5\xCE\xAF\": \"\xD8\xB3\xD9\x84\xD8\xA7\xD9\x85\",\n\
|
|
\"hall\xC3\xB3 \xC3\xBE" "arna\": 4660,\n\
|
|
\"\xE3\x81\x93\xE3\x82\x93\xE3\x81\xAB\xE3\x81\xA1\xE3\x81\xAF\": {\n\
|
|
\"\xD0\xBF\xD1\x80\xD0\xB8\xD0\xB2\xD0\xB5\xD1\x82\": [\n\
|
|
]\n\
|
|
}\n\
|
|
}\n\
|
|
";
|
|
|
|
JSONWriter w(MakeUnique<StringWriteFunc>());
|
|
|
|
// Test the string escaping behaviour.
|
|
w.Start();
|
|
{
|
|
// Test all 127 ascii values. Do it in reverse order so that the 0
|
|
// at the end serves as the null char.
|
|
char buf[128];
|
|
for (int i = 0; i < 128; i++) {
|
|
buf[i] = 127 - i;
|
|
}
|
|
w.StringProperty("ascii", buf);
|
|
|
|
// Test lots of unicode stuff. Note that this file is encoded as UTF-8.
|
|
w.BoolProperty("\xD9\x85\xD8\xB1\xD8\xAD\xD8\xA8\xD8\xA7 \xD9\x87\xD9\x86\xD8\xA7\xD9\x83", true);
|
|
w.IntProperty("\xD5\xA2\xD5\xA1\xD6\x80\xD5\xA5\xD6\x82 \xD5\xB9\xD5\xAF\xD5\xA1", -123);
|
|
w.DoubleProperty("\xE4\xBD\xA0\xE5\xA5\xBD", 1.234);
|
|
w.StringProperty("\xCE\xB3\xCE\xB5\xCE\xB9\xCE\xB1 \xCE\xB5\xCE\xBA\xCE\xB5\xCE\xAF", "\xD8\xB3\xD9\x84\xD8\xA7\xD9\x85");
|
|
w.IntProperty("hall\xC3\xB3 \xC3\xBE" "arna", 0x1234);
|
|
w.StartObjectProperty("\xE3\x81\x93\xE3\x82\x93\xE3\x81\xAB\xE3\x81\xA1\xE3\x81\xAF");
|
|
{
|
|
w.StartArrayProperty("\xD0\xBF\xD1\x80\xD0\xB8\xD0\xB2\xD0\xB5\xD1\x82");
|
|
w.EndArray();
|
|
}
|
|
w.EndObject();
|
|
}
|
|
w.End();
|
|
|
|
Check(w.WriteFunc(), expected);
|
|
}
|
|
|
|
void TestDeepNesting()
|
|
{
|
|
const char* expected = "\
|
|
{\n\
|
|
\"a\": [\n\
|
|
{\n\
|
|
\"a\": [\n\
|
|
{\n\
|
|
\"a\": [\n\
|
|
{\n\
|
|
\"a\": [\n\
|
|
{\n\
|
|
\"a\": [\n\
|
|
{\n\
|
|
\"a\": [\n\
|
|
{\n\
|
|
\"a\": [\n\
|
|
{\n\
|
|
\"a\": [\n\
|
|
{\n\
|
|
\"a\": [\n\
|
|
{\n\
|
|
\"a\": [\n\
|
|
{\n\
|
|
}\n\
|
|
]\n\
|
|
}\n\
|
|
]\n\
|
|
}\n\
|
|
]\n\
|
|
}\n\
|
|
]\n\
|
|
}\n\
|
|
]\n\
|
|
}\n\
|
|
]\n\
|
|
}\n\
|
|
]\n\
|
|
}\n\
|
|
]\n\
|
|
}\n\
|
|
]\n\
|
|
}\n\
|
|
]\n\
|
|
}\n\
|
|
";
|
|
|
|
JSONWriter w(MakeUnique<StringWriteFunc>());
|
|
|
|
w.Start();
|
|
{
|
|
static const int n = 10;
|
|
for (int i = 0; i < n; i++) {
|
|
w.StartArrayProperty("a");
|
|
w.StartObjectElement();
|
|
}
|
|
for (int i = 0; i < n; i++) {
|
|
w.EndObject();
|
|
w.EndArray();
|
|
}
|
|
}
|
|
w.End();
|
|
|
|
Check(w.WriteFunc(), expected);
|
|
}
|
|
|
|
int main(void)
|
|
{
|
|
TestBasicProperties();
|
|
TestBasicElements();
|
|
TestOneLineObject();
|
|
TestStringEscaping();
|
|
TestDeepNesting();
|
|
|
|
return 0;
|
|
}
|