'use strict';
|
|
Object.defineProperty(exports, '__esModule', {
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value: true
|
});
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exports.default = convertDescriptorToString;
|
|
/**
|
* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
|
*
|
* This source code is licensed under the MIT license found in the
|
* LICENSE file in the root directory of this source tree.
|
*/
|
|
/* eslint-disable local/ban-types-eventually */
|
// See: https://github.com/facebook/jest/pull/5154
|
function convertDescriptorToString(descriptor) {
|
if (
|
typeof descriptor === 'string' ||
|
typeof descriptor === 'number' ||
|
descriptor === undefined
|
) {
|
return descriptor;
|
}
|
|
if (typeof descriptor !== 'function') {
|
throw new Error('describe expects a class, function, number, or string.');
|
}
|
|
if (descriptor.name !== undefined) {
|
return descriptor.name;
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} // Fallback for old browsers, pardon Flow
|
|
const stringified = descriptor.toString();
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const typeDescriptorMatch = stringified.match(/class|function/);
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const indexOfNameSpace = // @ts-expect-error: typeDescriptorMatch exists
|
typeDescriptorMatch.index + typeDescriptorMatch[0].length;
|
const indexOfNameAfterSpace = stringified.search(/\(|\{/);
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const name = stringified.substring(indexOfNameSpace, indexOfNameAfterSpace);
|
return name.trim();
|
}
|
