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2023-08-30 1ac2bc1590406d9babec036e154d8d08f34a6aa1
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1ac2bc 1 describe('Date', function () {
懒 2     
3     describe('now', function () {
4         it('should be the current time', function () {
5             expect(Date.now() === new Date().getTime()).toBe(true);
6         });
7     });
8
9     describe("parse", function () {
10         // TODO: Write the rest of the test.
11
12         it('should support extended years', function () {
13
14             expect(Date.parse('0001-01-01T00:00:00Z')).toBe(-62135596800000);
15             expect(Date.parse('+275760-09-13T00:00:00.000Z')).toBe(8.64e15);
16             expect(Date.parse('+033658-09-27T01:46:40.000Z')).toBe(1e15);
17             expect(Date.parse('-000001-01-01T00:00:00Z')).toBe(-62198755200000);
18             expect(Date.parse('+002009-12-15T00:00:00Z')).toBe(1260835200000);
19
20         });
21
22         it('should work', function () {
23                                                                                   //Chrome 19     Opera 12      Firefox 11    IE 9          Safari 5.1.1
24             expect(Date.parse("2012-11-31T23:59:59.000Z")).toBeFalsy();           //1354406399000 NaN           NaN           1354406399000 NaN
25             expect(Date.parse("2012-12-31T23:59:59.000Z")).toBe(1356998399000);   //1356998399000 1356998399000 1356998399000 1356998399000 1356998399000
26             expect(Date.parse("2012-12-31T23:59:60.000Z")).toBeFalsy();           //NaN           NaN           NaN           NaN           1356998400000
27             expect(Date.parse("2012-04-04T05:02:02.170Z")).toBe(1333515722170);   //1333515722170 1333515722170 1333515722170 1333515722170 1333515722170
28             expect(Date.parse("2012-04-04T05:02:02.170999Z")).toBe(1333515722170);   //1333515722170 1333515722170 1333515722170 1333515722170 1333515722170
29             expect(Date.parse("2012-04-04T05:02:02.17Z")).toBe(1333515722170);    //1333515722170 1333515722170 1333515722170 1333515722170 1333515722170
30             expect(Date.parse("2012-04-04T05:02:02.1Z")).toBe(1333515722100);     //1333515722170 1333515722170 1333515722170 1333515722170 1333515722170
31             expect(Date.parse("2012-04-04T24:00:00.000Z")).toBe(1333584000000);   //NaN           1333584000000 1333584000000 1333584000000 1333584000000
32             expect(Date.parse("2012-04-04T24:00:00.500Z")).toBeFalsy();           //NaN           NaN           1333584000500 1333584000500 NaN
33             expect(Date.parse("2012-12-31T10:08:60.000Z")).toBeFalsy();           //NaN           NaN           NaN           NaN           1356948540000
34             expect(Date.parse("2012-13-01T12:00:00.000Z")).toBeFalsy();           //NaN           NaN           NaN           NaN           NaN
35             expect(Date.parse("2012-12-32T12:00:00.000Z")).toBeFalsy();           //NaN           NaN           NaN           NaN           NaN
36             expect(Date.parse("2012-12-31T25:00:00.000Z")).toBeFalsy();           //NaN           NaN           NaN           NaN           NaN
37             expect(Date.parse("2012-12-31T24:01:00.000Z")).toBeFalsy();           //NaN           NaN           NaN           1356998460000 NaN
38             expect(Date.parse("2012-12-31T12:60:00.000Z")).toBeFalsy();           //NaN           NaN           NaN           NaN           NaN
39             expect(Date.parse("2012-12-31T12:00:60.000Z")).toBeFalsy();           //NaN           NaN           NaN           NaN           1356955260000
40             expect(Date.parse("2012-00-31T23:59:59.000Z")).toBeFalsy();           //NaN           NaN           NaN           NaN           NaN
41             expect(Date.parse("2012-12-00T23:59:59.000Z")).toBeFalsy();           //NaN           NaN           NaN           NaN           NaN
42             expect(Date.parse("2012-02-29T12:00:00.000Z")).toBe(1330516800000);   //1330516800000 1330516800000 1330516800000 1330516800000 1330516800000
43             expect(Date.parse("2011-02-29T12:00:00.000Z")).toBeFalsy();           //1298980800000 NaN           NaN           1298980800000 NaN
44             expect(Date.parse("2011-03-01T12:00:00.000Z")).toBe(1298980800000);   //1298980800000 1298980800000 1298980800000 1298980800000 1298980800000
45
46             // extended years:
47             expect(Date.parse("0000-01-01T00:00:00.000Z")).toBe(-621672192e5);    //-621672192e5  -621672192e5  -621672192e5  -621672192e5  -621672192e5
48             expect(Date.parse("+275760-09-13T00:00:00.000Z")).toBe(8.64e15);      //8.64e15       NaN           8.64e15       8.64e15       8.64e15
49             expect(Date.parse("-271821-04-20T00:00:00.000Z")).toBe(-8.64e15);     //-8.64e15      NaN           -8.64e15      -8.64e15      -8.6400000864e15
50             expect(Date.parse("+275760-09-13T00:00:00.001Z")).toBeFalsy();        //NaN           NaN           NaN           8.64e15 + 1   8.64e15 + 1
51             expect(Date.parse("-271821-04-19T23:59:59.999Z")).toBeFalsy();        //NaN           NaN           NaN           -8.64e15 - 1  -8.6400000864e15 - 1
52
53             // https://github.com/kriskowal/es5-shim/issues/80 Safari bug with leap day
54             expect(Date.parse("2034-03-01T00:00:00.000Z") -
55                         Date.parse("2034-02-27T23:59:59.999Z")).toBe(86400001);   //86400001      86400001       86400001       86400001      1
56
57             // Time Zone Offset
58             expect(Date.parse("2012-01-29T12:00:00.000+01:00")).toBe(132783480e4);//132783480e4 132783480e4  132783480e4  132783480e4     132783480e4
59             expect(Date.parse("2012-01-29T12:00:00.000-00:00")).toBe(132783840e4);//132783840e4 132783840e4  132783840e4  132783840e4     132783840e4
60             expect(Date.parse("2012-01-29T12:00:00.000+00:00")).toBe(132783840e4);//132783840e4 132783840e4  132783840e4  132783840e4     132783840e4
61             expect(Date.parse("2012-01-29T12:00:00.000+23:59")).toBe(132775206e4);//132775206e4 132775206e4  132775206e4  132775206e4     132775206e4
62             expect(Date.parse("2012-01-29T12:00:00.000-23:59")).toBe(132792474e4);//132792474e4 132792474e4  132792474e4  132792474e4     132792474e4
63             expect(Date.parse("2012-01-29T12:00:00.000+24:00")).toBeFalsy();      //NaN         1327752e6    NaN          1327752000000   1327752000000
64             expect(Date.parse("2012-01-29T12:00:00.000+24:01")).toBeFalsy();      //NaN         NaN          NaN          1327751940000   1327751940000
65             expect(Date.parse("2012-01-29T12:00:00.000+24:59")).toBeFalsy();      //NaN         NaN          NaN          1327748460000   1327748460000
66             expect(Date.parse("2012-01-29T12:00:00.000+25:00")).toBeFalsy();      //NaN         NaN          NaN          NaN             NaN
67             expect(Date.parse("2012-01-29T12:00:00.000+00:60")).toBeFalsy();      //NaN         NaN          NaN          NaN             NaN
68             expect(Date.parse("-271821-04-20T00:00:00.000+00:01")).toBeFalsy();   //NaN         NaN          NaN          -864000000006e4 -864000008646e4
69             expect(Date.parse("-271821-04-20T00:01:00.000+00:01")).toBe(-8.64e15);//-8.64e15    NaN          -8.64e15     -8.64e15        -864000008640e4
70
71             // When time zone is missed, local offset should be used (ES 5.1 bug)
72             // see https://bugs.ecmascript.org/show_bug.cgi?id=112
73             var tzOffset = Number(new Date(1970, 0));
74             // same as (new Date().getTimezoneOffset() * 60000)
75             expect(Date.parse('1970-01-01T00:00:00')).toBe(tzOffset);             //tzOffset    0            0            0               NaN
76         });
77
78         it("should be able to coerce to a number", function(){
79             var actual = Number(new Date(1970, 0));
80             var expected = parseInt(actual, 10);
81             expect(actual).toBeDefined();
82             expect(actual).toEqual(expected);
83             expect(isNaN(actual)).toBeFalsy();
84         });
85
86     });
87
88     describe("toString", function(){
89         var actual = (new Date(1970, 0)).toString();
90         beforeEach(function(){
91             actual = (new Date(1970, 0)).toString();
92         });
93         it("should show correct date info for "+actual, function(){
94             expect(actual).toMatch(/1970/);
95             expect(actual).toMatch(/jan/i);
96             expect(actual).toMatch(/thu/i);
97             expect(actual).toMatch(/00:00:00/);
98         });
99     });
100
101     describe("valueOf", function(){
102         var actual = (new Date(1970, 0));
103         beforeEach(function(){
104             actual = (new Date(1970, 0)).valueOf();
105         });
106         it("should give an int value", function(){
107             expect(parseInt(actual, 10)).toBeTruthy();
108         });
109     });
110
111     describe("toISOString", function () {
112         // TODO: write the rest of the test.
113        
114         it('should support extended years', function () {
115             expect(new Date(-62198755200000).toISOString().indexOf('-000001-01-01')).toBe(0);
116             expect(new Date(8.64e15).toISOString().indexOf('+275760-09-13')).toBe(0);
117         });
118
119         it('should return correct dates', function () {
120             expect(new Date(-1).toISOString()).toBe('1969-12-31T23:59:59.999Z');// Safari 5.1.5 "1969-12-31T23:59:59.-01Z"
121             expect(new Date(-3509827334573292).toISOString()).toBe('-109252-01-01T10:37:06.708Z'); // Opera 11.61/Opera 12 bug with Date#getUTCMonth
122         });
123
124     });
125
126     describe("toJSON", function () {
127
128         // Opera 11.6x/12 bug
129         it('should call toISOString', function () {
130           var date = new Date(0);
131           date.toISOString = function () {
132             return 1;
133           };
134           expect(date.toJSON()).toBe(1);
135         });
136
137         it('should return null for not finite dates', function () {
138           var date = new Date(NaN),
139               json;
140           try {
141             json = date.toJSON();
142           } catch (e) {}
143           expect(json).toBe(null);
144         });
145
146         it('should return the isoString when stringified', function () {
147             var date = new Date();
148             expect(JSON.stringify(date.toISOString())).toBe(JSON.stringify(date));
149         }) 
150     });
151
152 });