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1 // Copyright 2014 the V8 project authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 // Flags: --allow-natives-syntax | |
6 | |
7 // TODO(jkummerow): There are many ways to improve these tests, e.g.: | |
8 // - more variance in randomized inputs | |
9 // - better time complexity management | |
10 // - better code readability and documentation of intentions. | |
11 | |
12 var RUN_WITH_ALL_ARGUMENT_ENTRIES = false; | |
13 var kOnManyArgumentsRemove = 5; | |
14 | |
15 function makeArguments() { | |
16 var result = [ ]; | |
17 result.push(17); | |
18 result.push(-31); | |
19 result.push(new Array(100)); | |
20 var a = %NormalizeElements([]); | |
21 a.length = 100003; | |
22 result.push(a); | |
23 result.push(Number.MIN_VALUE); | |
24 result.push("whoops"); | |
25 result.push("x"); | |
26 result.push({"x": 1, "y": 2}); | |
27 var slowCaseObj = {"a": 3, "b": 4, "c": 5}; | |
28 delete slowCaseObj.c; | |
29 result.push(slowCaseObj); | |
30 result.push(function () { return 8; }); | |
31 return result; | |
32 } | |
33 | |
34 var kArgObjects = makeArguments().length; | |
35 | |
36 function makeFunction(name, argc) { | |
37 var args = []; | |
38 for (var i = 0; i < argc; i++) | |
39 args.push("x" + i); | |
40 var argsStr = args.join(", "); | |
41 return new Function(argsStr, | |
42 "return %" + name + "(" + argsStr + ");"); | |
43 } | |
44 | |
45 function testArgumentCount(name, argc) { | |
46 for (var i = 0; i < 10; i++) { | |
47 var func = null; | |
48 try { | |
49 func = makeFunction(name, i); | |
50 } catch (e) { | |
51 if (e != "SyntaxError: Illegal access") throw e; | |
52 } | |
53 if (func === null && i == argc) { | |
54 throw "unexpected exception"; | |
55 } | |
56 var args = [ ]; | |
57 for (var j = 0; j < i; j++) | |
58 args.push(0); | |
59 try { | |
60 func.apply(void 0, args); | |
61 } catch (e) { | |
62 // we don't care what happens as long as we don't crash | |
63 } | |
64 } | |
65 } | |
66 | |
67 function testArgumentTypes(name, argc) { | |
68 var type = 0; | |
69 var hasMore = true; | |
70 var func = makeFunction(name, argc); | |
71 while (hasMore) { | |
72 var argPool = makeArguments(); | |
73 // When we have 5 or more arguments we lower the amount of tests cases | |
74 // by randomly removing kOnManyArgumentsRemove entries | |
75 var numArguments = RUN_WITH_ALL_ARGUMENT_ENTRIES ? | |
76 kArgObjects : kArgObjects - kOnManyArgumentsRemove; | |
77 if (kArgObjects >= 5 && !RUN_WITH_ALL_ARGUMENT_ENTRIES) { | |
78 for (var i = 0; i < kOnManyArgumentsRemove; i++) { | |
79 var rand = Math.floor(Math.random() * (kArgObjects - i)); | |
80 argPool.splice(rand, 1); | |
81 } | |
82 } | |
83 var current = type; | |
84 hasMore = false; | |
85 var argList = [ ]; | |
86 for (var i = 0; i < argc; i++) { | |
87 var index = current % numArguments; | |
88 current = (current / numArguments) << 0; | |
89 if (index != (numArguments - 1)) | |
90 hasMore = true; | |
91 argList.push(argPool[index]); | |
92 } | |
93 try { | |
94 func.apply(void 0, argList); | |
95 } catch (e) { | |
96 // we don't care what happens as long as we don't crash | |
97 } | |
98 type++; | |
99 } | |
100 } | |
101 | |
102 testArgumentCount(NAME, ARGC); | |
103 testArgumentTypes(NAME, ARGC); | |
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