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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
var expect = require("expect.js"),
__set__ = require("../lib/__set__.js"),
vm = require("vm"),
expectTypeError = expectError(TypeError);
function expectError(ErrConstructor) {
return function expectReferenceError(err) {
expect(err.constructor.name).to.be(ErrConstructor.name);
};
}
describe("__set__", function () {
var moduleFake,
undo;
beforeEach(function () {
moduleFake = {
module: {
exports: {}
},
myValue: 0, // copy by value
myReference: {} // copy by reference
};
vm.runInNewContext(
//__set__ requires __set__ to be present on module.exports
"__set__ = module.exports.__set__ = " + __set__.toString() + "; " +
"getValue = function () { return myValue; }; " +
"getReference = function () { return myReference; }; ",
moduleFake
);
});
it("should set the new value when calling with varName, varValue", function () {
expect(moduleFake.getValue()).to.be(0);
moduleFake.__set__("myValue", undefined);
expect(moduleFake.getValue()).to.be(undefined);
moduleFake.__set__("myValue", null);
expect(moduleFake.getValue()).to.be(null);
moduleFake.__set__("myValue", 2);
expect(moduleFake.getValue()).to.be(2);
moduleFake.__set__("myValue", "hello");
expect(moduleFake.getValue()).to.be("hello");
});
it("should set the new reference when calling with varName, varValue", function () {
var newObj = { hello: "hello" },
newArr = [1, 2, 3],
regExp = /123/gi;
function newFn() {
console.log("hello");
}
expect(moduleFake.getReference()).to.eql({});
moduleFake.__set__("myReference", newObj);
expect(moduleFake.getReference()).to.be(newObj);
moduleFake.__set__("myReference", newArr);
expect(moduleFake.getReference()).to.be(newArr);
moduleFake.__set__("myReference", newFn);
expect(moduleFake.getReference()).to.be(newFn);
moduleFake.__set__("myReference", regExp);
expect(moduleFake.getReference()).to.be(regExp);
});
it("should set the new number and the new obj when calling with an env-obj", function () {
var newObj = { hello: "hello" };
expect(moduleFake.getValue()).to.be(0);
expect(moduleFake.getReference()).to.eql({});
moduleFake.__set__({
myValue: 2,
myReference: newObj
});
expect(moduleFake.getValue()).to.be(2);
expect(moduleFake.getReference()).to.be(newObj);
});
it("should return a function that when invoked reverts to the values before set was called", function () {
undo = moduleFake.__set__("myValue", 4);
expect(undo).to.be.a("function");
expect(moduleFake.getValue()).to.be(4);
undo();
expect(moduleFake.getValue()).to.be(0);
});
it("should be able to revert when calling with an env-obj", function () {
var newObj = { hello: "hello" };
expect(moduleFake.getValue()).to.be(0);
expect(moduleFake.getReference()).to.eql({});
undo = moduleFake.__set__({
myValue: 2,
myReference: newObj
});
expect(moduleFake.getValue()).to.be(2);
expect(moduleFake.getReference()).to.be(newObj);
undo();
expect(moduleFake.getValue()).to.be(0);
expect(moduleFake.getReference()).to.eql({});
});
it("should throw a TypeError when passing misfitting params", function () {
expect(function () {
moduleFake.__set__();
}).to.throwException(expectTypeError);
expect(function () {
moduleFake.__set__(undefined);
}).to.throwException(expectTypeError);
expect(function () {
moduleFake.__set__(null);
}).to.throwException(expectTypeError);
expect(function () {
moduleFake.__set__(true);
}).to.throwException(expectTypeError);
expect(function () {
moduleFake.__set__(2);
}).to.throwException(expectTypeError);
expect(function () {
moduleFake.__set__("");
}).to.throwException(expectTypeError);
expect(function () {
moduleFake.__set__(function () {});
}).to.throwException(expectTypeError);
});
});
|
