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/* global jasmine */
import React from 'react';
import CustomReactElements from '../src/index';
import { insertCustomElementIntoDom, randomSelectorName } from './utils';
describe('Rendering basic components', () => {
it('renders them into the page', () => {
const selector = randomSelectorName();
const ExampleComponent = () => <p>hello world</p>;
CustomReactElements.define(selector, ExampleComponent);
insertCustomElementIntoDom(selector);
const elem = document.querySelector(selector);
expect(elem.innerHTML).toEqual('<p>hello world</p>');
});
it('does not use the shadow root by default', () => {
const selector = randomSelectorName();
const ExampleComponent = () => <p>hello world</p>;
CustomReactElements.define(selector, ExampleComponent);
insertCustomElementIntoDom(selector);
const elem = document.querySelector(selector);
expect(elem.shadowRoot).toEqual(null);
});
it('passes props through', () => {
const selector = randomSelectorName();
const ExampleComponent = props => <p>hello {props.name}</p>;
CustomReactElements.define(selector, ExampleComponent);
insertCustomElementIntoDom(selector, {
name: 'Jack',
});
const elem = document.querySelector(selector);
expect(elem.innerHTML).toEqual('<p>hello Jack</p>');
});
it('converts props to camelCase in React', done => {
const selector = randomSelectorName();
const ExampleComponent = props => {
expect(Object.keys(props)).toEqual([
'shouldCamelCaseThis',
'shouldnotcamelcasethis',
'container',
'children',
]);
done();
return null;
};
CustomReactElements.define(selector, ExampleComponent);
insertCustomElementIntoDom(selector, {
'should-camel-case-this': 'Jack',
shouldnotcamelcasethis: 'Jack',
});
});
describe('boolean attributes', () => {
it('parses the string literal true into a boolean', () => {
const selector = randomSelectorName();
const ExampleComponent = props =>
props.isLoggedIn === true ? 'Yes!' : 'No!';
CustomReactElements.define(selector, ExampleComponent);
insertCustomElementIntoDom(selector, {
'is-logged-in': 'true',
});
const elem = document.querySelector(selector);
expect(elem.innerHTML).toEqual('Yes!');
});
it('parses the string literal false into a boolean', () => {
const selector = randomSelectorName();
const ExampleComponent = props =>
props.isLoggedIn === false ? 'Yes!' : 'No!';
CustomReactElements.define(selector, ExampleComponent);
insertCustomElementIntoDom(selector, {
'is-logged-in': 'false',
});
const elem = document.querySelector(selector);
expect(elem.innerHTML).toEqual('Yes!');
});
it('lets you disable boolean transforms', () => {
const selector = randomSelectorName();
const ExampleComponent = props =>
props.isLoggedIn === false ? 'Yes!' : 'No!';
CustomReactElements.define(selector, ExampleComponent, {
disableBooleanTransforms: true,
});
insertCustomElementIntoDom(selector, {
'is-logged-in': 'false',
});
const elem = document.querySelector(selector);
expect(elem.innerHTML).toEqual('No!');
});
});
const getHtmlStringFromFragment = fragment =>
[].map.call(fragment.childNodes, x => x.outerHTML).join('');
it('passes the children in as a fragment to React', done => {
const selector = randomSelectorName();
const ExampleComponent = props => {
const htmlContent = getHtmlStringFromFragment(props.children);
expect(htmlContent).toEqual('<p>this was the children</p>');
done();
return null;
};
CustomReactElements.define(selector, ExampleComponent);
insertCustomElementIntoDom(
selector,
{
name: 'Jack',
},
'<p>this was the children</p>'
);
});
it('passes the container as a prop to React', done => {
const selector = randomSelectorName();
const ExampleComponent = props => {
expect(props.container).toEqual(jasmine.any(HTMLElement));
done();
return null;
};
CustomReactElements.define(selector, ExampleComponent);
insertCustomElementIntoDom(selector, {
name: 'Jack',
});
});
it('reacts as all the props change', done => {
const selector = randomSelectorName();
const ExampleComponent = props => <p>hello {props.name}</p>;
CustomReactElements.define(selector, ExampleComponent);
insertCustomElementIntoDom(selector, {
name: 'Jack',
});
let elem = document.querySelector(selector);
expect(elem.innerHTML).toEqual('<p>hello Jack</p>');
elem.setAttribute('name', 'Joe');
setImmediate(() => {
expect(elem.innerHTML).toEqual('<p>hello Joe</p>');
done();
});
});
it('parses JSON arrays', done => {
const rawJsonAttribute = '{["Jack"]}';
const selector = randomSelectorName();
const ExampleComponent = props => {
expect(props.names).toEqual(['Jack']);
done();
return null;
};
CustomReactElements.define(selector, ExampleComponent);
insertCustomElementIntoDom(selector, {
names: rawJsonAttribute,
});
});
it('parses JSON arrays over multiple lines', done => {
const rawJsonAttribute = `{[
"Jack"
]}`;
const selector = randomSelectorName();
const ExampleComponent = props => {
expect(props.names).toEqual(['Jack']);
done();
return null;
};
CustomReactElements.define(selector, ExampleComponent);
insertCustomElementIntoDom(selector, {
names: rawJsonAttribute,
});
});
it('parses JSON objects', done => {
const rawJsonAttribute = '{{"name": "Jack"}}';
const selector = randomSelectorName();
const ExampleComponent = props => {
expect(props.person).toEqual({
name: 'Jack',
});
done();
return null;
};
CustomReactElements.define(selector, ExampleComponent);
insertCustomElementIntoDom(selector, {
person: rawJsonAttribute,
});
});
it('parses JSON objects over multiple lines', done => {
const rawJsonAttribute = `{{
"name": "Jack",
"favouriteNumber": 26
}}`;
const selector = randomSelectorName();
const ExampleComponent = props => {
expect(props.person).toEqual({
name: 'Jack',
favouriteNumber: 26,
});
done();
return null;
};
CustomReactElements.define(selector, ExampleComponent);
insertCustomElementIntoDom(selector, {
person: rawJsonAttribute,
});
});
});