blob: d0c9d8d5f9b7201093d0d6e8065de329ce9317f7 (
plain)
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
|
test("basic numeric shifting", () => {
expect(0 << 0).toBe(0);
expect(0 << 1).toBe(0);
expect(0 << 2).toBe(0);
expect(0 << 3).toBe(0);
expect(0 << 4).toBe(0);
expect(0 << 5).toBe(0);
expect(1 << 0).toBe(1);
expect(1 << 1).toBe(2);
expect(1 << 2).toBe(4);
expect(1 << 3).toBe(8);
expect(1 << 4).toBe(16);
expect(1 << 5).toBe(32);
expect(2 << 0).toBe(2);
expect(2 << 1).toBe(4);
expect(2 << 2).toBe(8);
expect(2 << 3).toBe(16);
expect(2 << 4).toBe(32);
expect(2 << 5).toBe(64);
expect(3 << 0).toBe(3);
expect(3 << 1).toBe(6);
expect(3 << 2).toBe(12);
expect(3 << 3).toBe(24);
expect(3 << 4).toBe(48);
expect(3 << 5).toBe(96);
expect(4 << 0).toBe(4);
expect(4 << 1).toBe(8);
expect(4 << 2).toBe(16);
expect(4 << 3).toBe(32);
expect(4 << 4).toBe(64);
expect(4 << 5).toBe(128);
expect(5 << 0).toBe(5);
expect(5 << 1).toBe(10);
expect(5 << 2).toBe(20);
expect(5 << 3).toBe(40);
expect(5 << 4).toBe(80);
expect(5 << 5).toBe(160);
});
test("shifting with non-numeric values", () => {
let x = 3;
let y = 7;
expect("42" << 6).toBe(2688);
expect(x << y).toBe(384);
expect(x << [[[[12]]]]).toBe(12288);
expect(undefined << y).toBe(0);
expect("a" << "b").toBe(0);
expect(null << null).toBe(0);
expect(undefined << undefined).toBe(0);
expect(NaN << NaN).toBe(0);
expect(NaN << 6).toBe(0);
expect(Infinity << Infinity).toBe(0);
expect(-Infinity << Infinity).toBe(0);
});
|
