1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// TODO(jkummerow): There are many ways to improve these tests, e.g.:
// - more variance in randomized inputs
// - better time complexity management
// - better code readability and documentation of intentions.
var RUN_WITH_ALL_ARGUMENT_ENTRIES = false;
var kOnManyArgumentsRemove = 5;
function makeArguments() {
var result = [ ];
result.push(17);
result.push(-31);
result.push(new Array(100));
result.push(new Array(100003));
result.push(Number.MIN_VALUE);
result.push("whoops");
result.push("x");
result.push({"x": 1, "y": 2});
var slowCaseObj = {"a": 3, "b": 4, "c": 5};
delete slowCaseObj.c;
result.push(slowCaseObj);
result.push(function () { return 8; });
return result;
}
var kArgObjects = makeArguments().length;
function makeFunction(name, argc) {
var args = [];
for (var i = 0; i < argc; i++)
args.push("x" + i);
var argsStr = args.join(", ");
return new Function(argsStr,
"return %" + name + "(" + argsStr + ");");
}
function testArgumentCount(name, argc) {
for (var i = 0; i < 10; i++) {
var func = null;
try {
func = makeFunction(name, i);
} catch (e) {
if (e != "SyntaxError: Illegal access") throw e;
}
if (func === null && i == argc) {
throw "unexpected exception";
}
var args = [ ];
for (var j = 0; j < i; j++)
args.push(0);
try {
func.apply(void 0, args);
} catch (e) {
// we don't care what happens as long as we don't crash
}
}
}
function testArgumentTypes(name, argc) {
var type = 0;
var hasMore = true;
var func = makeFunction(name, argc);
while (hasMore) {
var argPool = makeArguments();
// When we have 5 or more arguments we lower the amount of tests cases
// by randomly removing kOnManyArgumentsRemove entries
var numArguments = RUN_WITH_ALL_ARGUMENT_ENTRIES ?
kArgObjects : kArgObjects - kOnManyArgumentsRemove;
if (kArgObjects >= 5 && !RUN_WITH_ALL_ARGUMENT_ENTRIES) {
for (var i = 0; i < kOnManyArgumentsRemove; i++) {
var rand = Math.floor(Math.random() * (kArgObjects - i));
argPool.splice(rand, 1);
}
}
var current = type;
hasMore = false;
var argList = [ ];
for (var i = 0; i < argc; i++) {
var index = current % numArguments;
current = (current / numArguments) << 0;
if (index != (numArguments - 1))
hasMore = true;
argList.push(argPool[index]);
}
try {
func.apply(void 0, argList);
} catch (e) {
// we don't care what happens as long as we don't crash
}
type++;
}
}
testArgumentCount(NAME, ARGC);
testArgumentTypes(NAME, ARGC);
|
