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
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
import { DSImage } from "content-src/components/DiscoveryStreamComponents/DSImage/DSImage";
import { mount } from "enzyme";
import React from "react";
describe("Discovery Stream <DSImage>", () => {
it("should have a child with class ds-image", () => {
const img = mount(<DSImage />);
const child = img.find(".ds-image");
assert.lengthOf(child, 1);
});
it("should set proper sources if only `source` is available", () => {
const img = mount(<DSImage source="https://placekitten.com/g/640/480" />);
assert.equal(
img.find("img").prop("src"),
"https://placekitten.com/g/640/480"
);
});
it("should set proper sources if `rawSource` is available", () => {
const testSizes = [
{
mediaMatcher: "(min-width: 1122px)",
width: 296,
height: 148,
},
{
mediaMatcher: "(min-width: 866px)",
width: 218,
height: 109,
},
{
mediaMatcher: "(max-width: 610px)",
width: 202,
height: 101,
},
];
const img = mount(
<DSImage
rawSource="https://placekitten.com/g/640/480"
sizes={testSizes}
/>
);
assert.equal(
img.find("img").prop("src"),
"https://placekitten.com/g/640/480"
);
assert.equal(
img.find("img").prop("srcSet"),
[
"https://img-getpocket.cdn.mozilla.net/296x148/filters:format(jpeg):quality(60):no_upscale():strip_exif()/https%3A%2F%2Fplacekitten.com%2Fg%2F640%2F480 296w",
"https://img-getpocket.cdn.mozilla.net/592x296/filters:format(jpeg):quality(60):no_upscale():strip_exif()/https%3A%2F%2Fplacekitten.com%2Fg%2F640%2F480 592w",
"https://img-getpocket.cdn.mozilla.net/218x109/filters:format(jpeg):quality(60):no_upscale():strip_exif()/https%3A%2F%2Fplacekitten.com%2Fg%2F640%2F480 218w",
"https://img-getpocket.cdn.mozilla.net/436x218/filters:format(jpeg):quality(60):no_upscale():strip_exif()/https%3A%2F%2Fplacekitten.com%2Fg%2F640%2F480 436w",
"https://img-getpocket.cdn.mozilla.net/202x101/filters:format(jpeg):quality(60):no_upscale():strip_exif()/https%3A%2F%2Fplacekitten.com%2Fg%2F640%2F480 202w",
"https://img-getpocket.cdn.mozilla.net/404x202/filters:format(jpeg):quality(60):no_upscale():strip_exif()/https%3A%2F%2Fplacekitten.com%2Fg%2F640%2F480 404w",
].join(",")
);
});
it("should fall back to unoptimized when optimized failed", () => {
const img = mount(
<DSImage
source="https://placekitten.com/g/640/480"
rawSource="https://placekitten.com/g/640/480"
/>
);
img.setState({
isSeen: true,
containerWidth: 640,
containerHeight: 480,
});
img.instance().onOptimizedImageError();
img.update();
assert.equal(
img.find("img").prop("src"),
"https://placekitten.com/g/640/480"
);
});
it("should render a placeholder image with no source and recent save", () => {
const img = mount(<DSImage isRecentSave={true} url="foo" title="bar" />);
img.setState({ isSeen: true });
img.update();
assert.equal(img.find("div").prop("className"), "placeholder-image");
});
it("should render a broken image with a source and a recent save", () => {
const img = mount(<DSImage isRecentSave={true} source="foo" />);
img.setState({ isSeen: true });
img.instance().onNonOptimizedImageError();
img.update();
assert.equal(img.find("div").prop("className"), "broken-image");
});
it("should render a broken image without a source and not a recent save", () => {
const img = mount(<DSImage isRecentSave={false} />);
img.setState({ isSeen: true });
img.instance().onNonOptimizedImageError();
img.update();
assert.equal(img.find("div").prop("className"), "broken-image");
});
it("should update loaded state when seen", () => {
const img = mount(
<DSImage rawSource="https://placekitten.com/g/640/480" />
);
img.instance().onLoad();
assert.propertyVal(img.state(), "isLoaded", true);
});
describe("DSImage with Idle Callback", () => {
let wrapper;
let windowStub = {
requestIdleCallback: sinon.stub().returns(1),
cancelIdleCallback: sinon.stub(),
};
beforeEach(() => {
wrapper = mount(<DSImage windowObj={windowStub} />);
});
it("should call requestIdleCallback on componentDidMount", () => {
assert.calledOnce(windowStub.requestIdleCallback);
});
it("should call cancelIdleCallback on componentWillUnmount", () => {
wrapper.instance().componentWillUnmount();
assert.calledOnce(windowStub.cancelIdleCallback);
});
});
});
|
