site/node_modules/pretty-format/plugins/ReactTestComponent.js
2024-10-14 08:09:33 +02:00

59 lines
1.5 KiB
JavaScript

'use strict';
const printString = require('../printString');
const reactTestInstance = Symbol.for('react.test.json');
function printChildren(children, print, indent, opts) {
return children.map(child => printInstance(child, print, indent, opts)).join(opts.edgeSpacing);
}
function printProps(props, print, indent, opts) {
return Object.keys(props).sort().map(name => {
const prop = props[name];
let printed = print(prop);
if (typeof prop !== 'string') {
if (printed.indexOf('\n') !== -1) {
printed = '{' + opts.edgeSpacing + indent(indent(printed) + opts.edgeSpacing + '}');
} else {
printed = '{' + printed + '}';
}
}
return opts.spacing + indent(name + '=') + printed;
}).join('');
}
function printInstance(instance, print, indent, opts) {
if (typeof instance == 'number') {
return print(instance);
} else if (typeof instance === 'string') {
return printString(instance);
}
let result = '<' + instance.type;
if (instance.props) {
result += printProps(instance.props, print, indent, opts);
}
if (instance.children) {
const children = printChildren(instance.children, print, indent, opts);
result += '>' + opts.edgeSpacing + indent(children) + opts.edgeSpacing + '</' + instance.type + '>';
} else {
result += ' />';
}
return result;
}
module.exports = {
test(object) {
return object && object.$$typeof === reactTestInstance;
},
print(val, print, indent, opts) {
return printInstance(val, print, indent, opts);
}
};