/**
* @jest-environment jsdom
*/
import { tick } from 'svelte';
import { render } from '@testing-library/svelte';
import Icon, { loadIcons, iconExists } from '../../dist';
import { mockAPIData } from '@iconify/core/lib/api/modules/mock';
import { provider, nextPrefix } from './load';
const iconData = {
body: '',
width: 24,
height: 24,
};
describe('Rendering icon', () => {
test('rendering icon after loading it', () => {
return new Promise((fulfill, reject) => {
const prefix = nextPrefix();
const name = 'render-test';
const iconName = `@${provider}:${prefix}:${name}`;
const className = `iconify iconify--${prefix} iconify--${provider}`;
let onLoadCalled = false;
mockAPIData({
type: 'icons',
provider,
prefix,
response: {
prefix,
icons: {
[name]: iconData,
},
},
});
// Check if icon has been loaded
expect(iconExists(iconName)).toBe(false);
// Load icon
loadIcons([iconName], (loaded, missing, pending) => {
// Make sure icon has been loaded
expect(loaded).toMatchObject([
{
provider,
prefix,
name,
},
]);
expect(missing).toMatchObject([]);
expect(pending).toMatchObject([]);
expect(iconExists(iconName)).toBe(true);
// Render component
const component = render(Icon, {
icon: iconName,
onLoad: (name: string) => {
expect(name).toBe(iconName);
expect(onLoadCalled).toBe(false);
onLoadCalled = true;
},
});
const node = component.container.querySelector('svg')!;
const html = (node.parentNode as HTMLDivElement).innerHTML;
// Check HTML immediately
expect(html).toBe(
''
);
// Make sure onLoad has been called
expect(onLoadCalled).toBe(true);
fulfill(true);
});
});
});
test('rendering icon before loading it', () => {
return new Promise((fulfill, reject) => {
const prefix = nextPrefix();
const name = 'mock-test';
const iconName = `@${provider}:${prefix}:${name}`;
const className = `iconify iconify--${prefix} iconify--${provider}`;
let onLoadCalled = false;
mockAPIData({
type: 'icons',
provider,
prefix,
response: {
prefix,
icons: {
[name]: iconData,
},
},
delay: (next) => {
// Icon should not have loaded yet
expect(iconExists(iconName)).toBe(false);
// onLoad should not have been called yet
expect(onLoadCalled).toBe(false);
// Send icon data
next();
// Test it again
expect(iconExists(iconName)).toBe(true);
},
});
// Check if icon has been loaded
expect(iconExists(iconName)).toBe(false);
// Render component
const component = render(Icon, {
icon: iconName,
// Also testing simple class
class: 'test',
onLoad: (name: string) => {
expect(name).toBe(iconName);
expect(onLoadCalled).toBe(false);
onLoadCalled = true;
// Check component on next tick
tick()
.then(() => {
const node =
component.container.querySelector('svg')!;
const html = (node.parentNode as HTMLDivElement)
.innerHTML;
// Check HTML
expect(html).toBe(
''
);
fulfill(true);
})
.catch(reject);
},
});
// Should render empty icon
const html = component.container.innerHTML;
expect(html.replace(//gm, '')).toBe('
');
// onLoad should not have been called yet
expect(onLoadCalled).toBe(false);
});
});
test('missing icon', () => {
return new Promise((fulfill, reject) => {
const prefix = nextPrefix();
const name = 'missing-icon';
const iconName = `@${provider}:${prefix}:${name}`;
mockAPIData({
type: 'icons',
provider,
prefix,
response: 404,
delay: (next) => {
// Icon should not have loaded yet
expect(iconExists(iconName)).toBe(false);
// Send icon data
next();
// Test it again
expect(iconExists(iconName)).toBe(false);
// Check if state was changed on next few ticks
tick()
.then(() => {
const html = component.container.innerHTML;
expect(html.replace(//gm, '')).toBe(
''
);
return tick();
})
.then(() => {
const html = component.container.innerHTML;
expect(html.replace(//gm, '')).toBe(
''
);
return tick();
})
.then(() => {
const html = component.container.innerHTML;
expect(html.replace(//gm, '')).toBe(
''
);
fulfill(true);
})
.catch(reject);
},
});
// Check if icon has been loaded
expect(iconExists(iconName)).toBe(false);
// Render component
const component = render(Icon, {
icon: iconName,
onLoad: () => {
throw new Error('onLoad called for empty icon!');
},
});
// Should render empty icon
const html = component.container.innerHTML;
expect(html.replace(//gm, '')).toBe('');
});
});
});