1 use js_sys::*;
2 use wasm_bindgen::JsCast;
3 use wasm_bindgen::JsValue;
4 use wasm_bindgen_test::*;
5
6 #[wasm_bindgen_test]
test()7 fn test() {
8 let bytes = Int8Array::new(&JsValue::from(10));
9
10 // TODO: figure out how to do `bytes[2] = 2`
11 bytes.subarray(2, 3).fill(2, 0, 1);
12
13 let v = DataView::new(&bytes.buffer(), 2, 8);
14 assert_eq!(v.byte_offset(), 2);
15 assert_eq!(v.byte_length(), 8);
16 assert_eq!(v.get_int8(0), 2);
17 assert_eq!(v.get_uint8(0), 2);
18
19 v.set_int8(0, 42);
20 assert_eq!(v.get_int8(0), 42);
21 v.set_uint8(0, 255);
22 assert_eq!(v.get_uint8(0), 255);
23
24 v.set_int16(0, 32767);
25 assert_eq!(v.get_int16(0), 32767);
26 v.set_int16_endian(0, 0x1122, true);
27 assert_eq!(v.get_int16_endian(0, true), 0x1122);
28 assert_eq!(v.get_int16_endian(0, false), 0x2211);
29 v.set_uint16(0, 65535);
30 assert_eq!(v.get_uint16(0), 65535);
31 v.set_uint16_endian(0, 0x1122, true);
32 assert_eq!(v.get_uint16_endian(0, true), 0x1122);
33 assert_eq!(v.get_uint16_endian(0, false), 0x2211);
34
35 v.set_int32(0, 123456789);
36 assert_eq!(v.get_int32(0), 123456789);
37 v.set_int32_endian(0, 0x11223344, true);
38 assert_eq!(v.get_int32_endian(0, true), 0x11223344);
39 assert_eq!(v.get_int32_endian(0, false), 0x44332211);
40 v.set_uint32(0, 3_123_456_789);
41 assert_eq!(v.get_uint32(0), 3_123_456_789);
42 v.set_uint32_endian(0, 0x11223344, true);
43 assert_eq!(v.get_uint32_endian(0, true), 0x11223344);
44 assert_eq!(v.get_uint32_endian(0, false), 0x44332211);
45
46 v.set_float32(0, 100.123);
47 assert_eq!(v.get_float32(0), 100.123);
48 v.set_float32_endian(0, f32::from_bits(0x11223344), true);
49 assert_eq!(v.get_float32_endian(0, true), f32::from_bits(0x11223344));
50 assert_eq!(v.get_float32_endian(0, false), f32::from_bits(0x44332211));
51
52 v.set_float64(0, 123456789.123456);
53 assert_eq!(v.get_float64(0), 123456789.123456);
54 v.set_float64_endian(0, f64::from_bits(0x1122334411223344), true);
55 assert_eq!(
56 v.get_float64_endian(0, true),
57 f64::from_bits(0x1122334411223344)
58 );
59 assert_eq!(
60 v.get_float64_endian(0, false),
61 f64::from_bits(0x4433221144332211)
62 );
63
64 v.set_int8(0, 42);
65
66 // TODO: figure out how to do `bytes[2]`
67 bytes
68 .subarray(2, 3)
69 .for_each(&mut |x, _, _| assert_eq!(x, 42));
70 }
71
72 #[wasm_bindgen_test]
dataview_inheritance()73 fn dataview_inheritance() {
74 let bytes = Int8Array::new(&JsValue::from(10));
75
76 // TODO: figure out how to do `bytes[2] = 2`
77 bytes.subarray(2, 3).fill(2, 0, 1);
78
79 let v = DataView::new(&bytes.buffer(), 2, 8);
80
81 assert!(v.is_instance_of::<DataView>());
82 assert!(v.is_instance_of::<Object>());
83 let _: &Object = v.as_ref();
84 }
85