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node_modules/has-bigints/test/index.js

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+'use strict';
+
+var test = require('tape');
+var hasBigInts = require('..');
+
+test('interface', function (t) {
+	t.equal(typeof hasBigInts, 'function', 'is a function');
+	t.equal(typeof hasBigInts(), 'boolean', 'returns a boolean');
+	t.end();
+});
+
+test('BigInts are supported', { skip: !hasBigInts() }, function (t) {
+	t.equal(typeof BigInt, 'function', 'global BigInt is a function');
+	if (typeof BigInt !== 'function') {
+		return;
+	}
+
+	t.equal(BigInt(42), BigInt(42), '42n === 42n');
+	t['throws'](
+		function () { BigInt(NaN); },
+		RangeError,
+		'NaN is not an integer; BigInt(NaN) throws'
+	);
+
+	t['throws'](
+		function () { BigInt(Infinity); },
+		RangeError,
+		'Infinity is not an integer; BigInt(Infinity) throws'
+	);
+
+	t['throws'](
+		function () { BigInt(1.1); },
+		RangeError,
+		'1.1 is not an integer; BigInt(1.1) throws'
+	);
+
+	t.end();
+});
+
+test('BigInts are not supported', { skip: hasBigInts() }, function (t) {
+	t.equal(typeof BigInt, 'undefined', 'global BigInt is undefined');
+
+	t.end();
+});