|
1
|
|
|
var utilities = require('../utilities.js'); |
|
2
|
|
|
|
|
3
|
|
|
describe('utilities.inherits', function() { |
|
4
|
|
|
describe('failing tests', function() { |
|
5
|
|
|
// test example from README.md |
|
6
|
|
|
var SuperClass = {}; |
|
|
|
|
|
|
7
|
|
|
|
|
8
|
|
|
// a class we want to inherit from SuperClass |
|
9
|
|
|
var SomeClass = function() {}; |
|
10
|
|
|
|
|
11
|
|
|
it("should fail because the Constructor is undefined", function() { |
|
12
|
|
|
expect(utilities.inherits.bind()).toThrowError(TypeError); |
|
13
|
|
|
}); |
|
14
|
|
|
|
|
15
|
|
|
it("should fail because the Constructor is null", function() { |
|
16
|
|
|
expect(utilities.inherits.bind(null, null)).toThrowError(TypeError); |
|
17
|
|
|
}); |
|
18
|
|
|
|
|
19
|
|
|
it("should fail because the SuperConstructor is undefined", function() { |
|
20
|
|
|
expect(utilities.inherits.bind(null, SomeClass)).toThrowError(TypeError); |
|
21
|
|
|
}); |
|
22
|
|
|
|
|
23
|
|
|
it("should fail because the SuperConstructor is null", function() { |
|
24
|
|
|
expect(utilities.inherits.bind(null, SomeClass, null)).toThrowError(TypeError); |
|
25
|
|
|
}); |
|
26
|
|
|
|
|
27
|
|
|
it("should fail because the SuperConstructor has no prototype", function() { |
|
28
|
|
|
expect(utilities.inherits.bind(null, SomeClass, [])).toThrowError(TypeError); |
|
29
|
|
|
}); |
|
30
|
|
|
}); |
|
31
|
|
|
describe('successful tests', function() { |
|
32
|
|
|
// test example from README.md |
|
33
|
|
|
var SuperClass = function() { |
|
34
|
|
|
this.someProperty = 42; |
|
35
|
|
|
}; |
|
36
|
|
|
|
|
37
|
|
|
SuperClass.prototype.retMsg = function(msg) { |
|
38
|
|
|
return msg; |
|
39
|
|
|
}; |
|
40
|
|
|
|
|
41
|
|
|
SuperClass.prototype.getSomeProp = function() { |
|
42
|
|
|
return this.someProperty; |
|
43
|
|
|
}; |
|
44
|
|
|
|
|
45
|
|
|
// a class we want to inherit from SuperClass |
|
46
|
|
|
var SomeClass = function() { |
|
47
|
|
|
SuperClass.call(this); |
|
48
|
|
|
}; |
|
49
|
|
|
|
|
50
|
|
|
utilities.inherits(SomeClass, SuperClass); |
|
51
|
|
|
|
|
52
|
|
|
SomeClass.prototype.flop = function(msg) { |
|
53
|
|
|
return this.retMsg(msg); |
|
54
|
|
|
}; |
|
55
|
|
|
|
|
56
|
|
|
var someClass_instance = new SomeClass(); |
|
57
|
|
|
// end test example from README.md |
|
58
|
|
|
|
|
59
|
|
|
it("should be able to access inherited properties", function() { |
|
60
|
|
|
expect(someClass_instance.someProperty).toEqual(42); |
|
61
|
|
|
}); |
|
62
|
|
|
|
|
63
|
|
|
it("should be able to run inherited methods", function() { |
|
64
|
|
|
expect(someClass_instance.retMsg('hi')).toEqual('hi'); |
|
65
|
|
|
}); |
|
66
|
|
|
|
|
67
|
|
|
it("should be able to run inherited methods by using the this keyword", function() { |
|
68
|
|
|
expect(someClass_instance.flop('hi')).toEqual('hi'); |
|
69
|
|
|
}); |
|
70
|
|
|
|
|
71
|
|
|
it("should be instance of SomeClass", function() { |
|
72
|
|
|
expect((someClass_instance instanceof SomeClass)).toEqual(true); |
|
73
|
|
|
}); |
|
74
|
|
|
|
|
75
|
|
|
it("should be instance of SuperClass", function() { |
|
76
|
|
|
expect((someClass_instance instanceof SuperClass)).toEqual(true); |
|
77
|
|
|
}); |
|
78
|
|
|
|
|
79
|
|
|
it("should set SuperClass contructor", function() { |
|
80
|
|
|
expect(someClass_instance.constructor.super_ === SuperClass).toEqual(true); |
|
81
|
|
|
}); |
|
82
|
|
|
|
|
83
|
|
|
it("should set contructor", function() { |
|
84
|
|
|
expect(someClass_instance.constructor === SomeClass).toEqual(true); |
|
85
|
|
|
}); |
|
86
|
|
|
}); |
|
87
|
|
|
}); |
theZieger /
utilitiesjs
Loading history...