tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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json.js (1997B)

      1 function testBasic() {
      2    // Latin1
      3    var s = '[1, 2, "foo", "bar\\r\\n", {"xyz": 3}, [1, 2, 3]]';
      4    assertEq(isLatin1(s), true);
      5    assertEq(JSON.stringify(JSON.parse(s)), '[1,2,"foo","bar\\r\\n",{"xyz":3},[1,2,3]]');
      6 
      7    // TwoByte
      8    s = '[1, 2, "foo\u1200", "bar\\r\\n", {"xyz": 3}, [1, 2, 3]]';
      9    assertEq(JSON.stringify(JSON.parse(s)), '[1,2,"foo\u1200","bar\\r\\n",{"xyz":3},[1,2,3]]');
     10 }
     11 testBasic();
     12 
     13 function testErrorPos() {
     14    // Make sure the error location is calculated correctly.
     15 
     16    // Latin1
     17    var s = '[1, \n2,';
     18    try {
     19 JSON.parse(s);
     20 assertEq(0, 1);
     21    } catch(e) {
     22 assertEq(e instanceof SyntaxError, true);
     23 assertEq(e.toString().includes("line 2 column 3"), true);
     24    }
     25 
     26    s = '[1, "\u1300",\n2,';
     27    try {
     28 JSON.parse(s);
     29 assertEq(0, 1);
     30    } catch(e) {
     31 assertEq(e instanceof SyntaxError, true);
     32 assertEq(e.toString().includes("line 2 column 3"), true);
     33    }
     34 }
     35 testErrorPos();
     36 
     37 function testEvalHack() {
     38    // Latin1
     39    var arr = eval("[1, 2, 3, \"abc\"]");
     40    assertEq(JSON.stringify(arr), '[1,2,3,"abc"]');
     41    assertEq(isLatin1(JSON.stringify(arr)), true);
     42 
     43    // TwoByte
     44    arr = eval("[1, 2, 3, \"abc\u1200\"]");
     45    assertEq(JSON.stringify(arr), '[1,2,3,"abc\u1200"]');
     46 }
     47 testEvalHack();
     48 
     49 function testEvalHackNotJSON() {
     50    // Latin1
     51    var arr = eval("[]; var q; [1, 2, 3, \"abc\"]");
     52    assertEq(JSON.stringify(arr), '[1,2,3,"abc"]');
     53 
     54    // TwoByte
     55    arr = eval("[]; var z; [1, 2, 3, \"abc\u1200\"]");
     56    assertEq(JSON.stringify(arr), '[1,2,3,"abc\u1200"]');
     57 
     58    var arr = eval("[1, 2, 3, \"abc\u2028\"]");
     59    assertEq(arr.length, 4);
     60    assertEq(arr[3], "abc\u2028");
     61 }
     62 testEvalHackNotJSON();
     63 
     64 function testQuote() {
     65    // Latin1
     66    var s = "abc--\x05-'\"-\n-\u00ff++";
     67    var res = JSON.stringify(s);
     68    assertEq(res, '"abc--\\u0005-\'\\"-\\n-\xFF++"');
     69    assertEq(isLatin1(res), true);
     70 
     71    // TwoByte
     72    s += "\uAAAA";
     73    assertEq(JSON.stringify(s), '"abc--\\u0005-\'\\"-\\n-\xFF++\uAAAA"');
     74 }
     75 testQuote();