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							- 'use strict';
 
- var test = require('tape');
 
- var getProto = require('get-proto');
 
- var semver = require('semver');
 
- var getAsyncFunction = require('../');
 
- test('getAsyncFunction', function (t) {
 
- 	var result = getAsyncFunction();
 
- 	/* eslint-env browser */
 
- 	if (typeof window === 'undefined' && typeof process !== 'undefined') {
 
- 		t.equal(
 
- 			!!result,
 
- 			semver.satisfies(process.version, '>= 7.6'),
 
- 			'result is present or absent as expected for node ' + process.version
 
- 		);
 
- 	}
 
- 	t.test('exists', { skip: !result }, function (st) {
 
- 		if (result && getProto) { // TS can't infer `skip`, or that getProto definitely exists if AsyncFunction exists
 
- 			st.equal(typeof result, 'function', 'is a function');
 
- 			st.equal(getProto(result), Function, 'extends Function');
 
- 			return result('a', 'return a')(42).then(function (a) {
 
- 				st.equal(a, 42, 'returns an async function');
 
- 			});
 
- 		}
 
- 		return st.fail('should never get here');
 
- 	});
 
- 	t.test('does not exist', { skip: !!result }, function (st) {
 
- 		st.equal(result, false, 'is false');
 
- 		st.end();
 
- 	});
 
- 	t.end();
 
- });
 
 
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