41 lines
1.1 KiB
JavaScript
41 lines
1.1 KiB
JavaScript
'use strict';
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var test = require('tape');
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var getProto = require('get-proto');
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var semver = require('semver');
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var getAsyncGeneratorFunction = require('../');
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test('getAsyncGeneratorFunction', function (t) {
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var result = getAsyncGeneratorFunction();
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/* eslint-env browser */
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if (typeof window === 'undefined' && typeof process !== 'undefined') {
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t.equal(
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!!result,
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semver.satisfies(process.version, '>= 10'),
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'result is present or absent as expected for node ' + process.version
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);
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}
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t.test('exists', { skip: !result }, function (st) {
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if (result && getProto) { // TS can't infer `skip`, or that getProto definitely exists if AsyncGeneratorFunction exists
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st.equal(typeof result, 'function', 'is a function');
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st.equal(getProto(result), Function, 'extends Function');
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return result('a', 'return a')(42).next().then(function (a) {
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st.deepEqual(a, { done: true, value: 42 }, 'returns an async generator function');
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});
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}
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return st.fail('should never get here');
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});
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t.test('does not exist', { skip: !!result }, function (st) {
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st.equal(result, false, 'is false');
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st.end();
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});
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t.end();
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});
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