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node_modules/object.fromentries/test/shimmed.js

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+'use strict';
+
+require('../auto');
+
+var test = require('tape');
+var keys = require('object-keys');
+var defineProperties = require('define-properties');
+var isEnumerable = Object.prototype.propertyIsEnumerable;
+var functionsHaveNames = function f() {}.name === 'f';
+
+var runTests = require('./tests');
+
+test('shimmed', function (t) {
+	t.equal(Object.fromEntries.length, 1, 'Object.fromEntries has a length of 1');
+	t.test('Function name', { skip: !functionsHaveNames }, function (st) {
+		st.equal(Object.fromEntries.name, 'fromEntries', 'Object.fromEntries has name "fromEntries"');
+		st.end();
+	});
+
+	t.test('enumerability', { skip: !defineProperties.supportsDescriptors }, function (et) {
+		et.equal(false, isEnumerable.call(Object, 'fromEntries'), 'Object.fromEntries is not enumerable');
+		et.end();
+	});
+
+	var supportsStrictMode = (function () { return typeof this === 'undefined'; }());
+
+	t.test('bad object value', { skip: !supportsStrictMode }, function (st) {
+		st['throws'](function () { return Object.fromEntries(undefined); }, TypeError, 'undefined is not an object');
+		st['throws'](function () { return Object.fromEntries(null); }, TypeError, 'null is not an object');
+		st.end();
+	});
+
+	t.test('does not mutate global method', function (st) {
+		st.deepEqual(keys(Object.fromEntries), [], 'no enumerable keys');
+		st.equal('shim' in Object.fromEntries, false, '"shim" is not present');
+		st.equal('getPolyfill' in Object.fromEntries, false, '"getPolyfill" is not present');
+		st.equal('implementation' in Object.fromEntries, false, '"implementation" is not present');
+		st.end();
+	});
+
+	runTests(Object.fromEntries, t);
+
+	t.end();
+});