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| (Empty) | |
| 1 <html> |
| 2 <head> |
| 3 <script> |
| 4 |
| 5 function overrideToString() |
| 6 { |
| 7 console.error("FAIL: side effects, should not be called."); |
| 8 return "FAIL"; |
| 9 } |
| 10 |
| 11 function test() |
| 12 { |
| 13 [Object, Array, Number, Boolean, String, Uint32Array, Node, Element].forEach
(function(type) { |
| 14 type.prototype.toString = overrideToString; |
| 15 }); |
| 16 |
| 17 console.log("string"); |
| 18 console.log(42); |
| 19 console.log(false); |
| 20 console.log(undefined); |
| 21 console.log(null); |
| 22 console.log(NaN); |
| 23 console.log(-Infinity); |
| 24 console.log(-0); |
| 25 console.log(new Number(42)); |
| 26 console.log(new Number(-42.42e-12)); |
| 27 console.log(new Boolean(true)); |
| 28 console.log(new String("foo")); |
| 29 console.log({ __proto__: null }); |
| 30 console.log(window); |
| 31 |
| 32 // Test DOMWrapper object. |
| 33 var node = document.getElementById("node"); |
| 34 node.toString = overrideToString; |
| 35 node.__proto__.toString = overrideToString; |
| 36 console.log(node); |
| 37 |
| 38 var obj = { foo: 1, bar: 2 }; |
| 39 var arr = [1, 2, 3]; |
| 40 console.log(obj); |
| 41 console.log(arr); |
| 42 |
| 43 console.log(new Uint32Array([1, 2, 3])); |
| 44 |
| 45 arr.push(obj); |
| 46 console.log(arr); |
| 47 |
| 48 var overridden = { toString: overrideToString }; |
| 49 console.log(overridden); |
| 50 |
| 51 arr.push(overridden); |
| 52 console.log(arr); |
| 53 |
| 54 // Test recursive arrays. |
| 55 var a1 = [[1, [[2], 3], [[[[4]]], 5]]]; |
| 56 var a2 = []; a2[3] = null; a2[5] = NaN; |
| 57 a1.push(a2); |
| 58 a2.push(a1); |
| 59 var a3 = [[a1], [[a2]]]; |
| 60 a3.push(a3); |
| 61 console.log(a3); |
| 62 |
| 63 // This used to timeout. |
| 64 var timeout = { toString: function() { while (true) {} } }; |
| 65 console.log(timeout); |
| 66 |
| 67 arr.push(timeout); |
| 68 console.log(arr); |
| 69 |
| 70 // This used to crash out of memory. |
| 71 const maxArrayLength = 4294967295; |
| 72 for (var i = 100000; i < maxArrayLength; i *= 10) { |
| 73 arr[i] = i; |
| 74 console.log(arr); |
| 75 } |
| 76 arr[maxArrayLength - 1] = a3; |
| 77 console.log(arr); |
| 78 |
| 79 // Test array length limit. |
| 80 const arrayLengthLimit = 10000; |
| 81 var arr = []; |
| 82 for (var i = 0; i < arrayLengthLimit + 1; ++i) |
| 83 arr[i] = i; |
| 84 console.log(arr); |
| 85 |
| 86 // Test array stack depth limit. |
| 87 var arr = []; |
| 88 for (var i = 0; i < arrayLengthLimit; ++i) |
| 89 arr = [arr]; |
| 90 console.log(arr); |
| 91 } |
| 92 |
| 93 function runTest() |
| 94 { |
| 95 if (window.testRunner) { |
| 96 testRunner.dumpAsText(); |
| 97 testRunner.waitUntilDone(); |
| 98 } |
| 99 try { |
| 100 test(); |
| 101 } finally { |
| 102 if (window.testRunner) |
| 103 testRunner.notifyDone(); |
| 104 } |
| 105 } |
| 106 |
| 107 </script> |
| 108 </head> |
| 109 <body onload="runTest()"> |
| 110 <p id ="node"> |
| 111 Tests various extreme usages of console.log() |
| 112 </p> |
| 113 </body> |
| 114 </html> |
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Chromium Code Reviews
Issue 388093002:
DevTools: Do not crash or hang on console.log() (Closed)
Base URL: svn://svn.chromium.org/blink/trunk