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'use strict';
require('../common');
var assert = require('assert');
var util = require('util');
var context = require('vm').runInNewContext;
// isArray
assert.equal(true, util.isArray([]));
assert.equal(true, util.isArray(Array()));
assert.equal(true, util.isArray(new Array()));
assert.equal(true, util.isArray(new Array(5)));
assert.equal(true, util.isArray(new Array('with', 'some', 'entries')));
assert.equal(true, util.isArray(context('Array')()));
assert.equal(false, util.isArray({}));
assert.equal(false, util.isArray({ push: function() {} }));
assert.equal(false, util.isArray(/regexp/));
assert.equal(false, util.isArray(new Error()));
assert.equal(false, util.isArray(Object.create(Array.prototype)));
// isRegExp
assert.equal(true, util.isRegExp(/regexp/));
assert.equal(true, util.isRegExp(RegExp()));
assert.equal(true, util.isRegExp(new RegExp()));
assert.equal(true, util.isRegExp(context('RegExp')()));
assert.equal(false, util.isRegExp({}));
assert.equal(false, util.isRegExp([]));
assert.equal(false, util.isRegExp(new Date()));
assert.equal(false, util.isRegExp(Object.create(RegExp.prototype)));
// isDate
assert.equal(true, util.isDate(new Date()));
assert.equal(true, util.isDate(new Date(0)));
assert.equal(true, util.isDate(new (context('Date'))));
assert.equal(false, util.isDate(Date()));
assert.equal(false, util.isDate({}));
assert.equal(false, util.isDate([]));
assert.equal(false, util.isDate(new Error()));
assert.equal(false, util.isDate(Object.create(Date.prototype)));
// isError
assert.equal(true, util.isError(new Error()));
assert.equal(true, util.isError(new TypeError()));
assert.equal(true, util.isError(new SyntaxError()));
assert.equal(true, util.isError(new (context('Error'))));
assert.equal(true, util.isError(new (context('TypeError'))));
assert.equal(true, util.isError(new (context('SyntaxError'))));
assert.equal(false, util.isError({}));
assert.equal(false, util.isError({ name: 'Error', message: '' }));
assert.equal(false, util.isError([]));
assert.equal(true, util.isError(Object.create(Error.prototype)));
// isObject
assert.ok(util.isObject({}) === true);
// isPrimitive
assert.equal(false, util.isPrimitive({}));
assert.equal(false, util.isPrimitive(new Error()));
assert.equal(false, util.isPrimitive(new Date()));
assert.equal(false, util.isPrimitive([]));
assert.equal(false, util.isPrimitive(/regexp/));
assert.equal(false, util.isPrimitive(function() {}));
assert.equal(false, util.isPrimitive(new Number(1)));
assert.equal(false, util.isPrimitive(new String('bla')));
assert.equal(false, util.isPrimitive(new Boolean(true)));
assert.equal(true, util.isPrimitive(1));
assert.equal(true, util.isPrimitive('bla'));
assert.equal(true, util.isPrimitive(true));
assert.equal(true, util.isPrimitive(undefined));
assert.equal(true, util.isPrimitive(null));
assert.equal(true, util.isPrimitive(Infinity));
assert.equal(true, util.isPrimitive(NaN));
assert.equal(true, util.isPrimitive(Symbol('symbol')));
// isBuffer
assert.equal(false, util.isBuffer('foo'));
assert.equal(true, util.isBuffer(Buffer.from('foo')));
// _extend
assert.deepStrictEqual(util._extend({a:1}), {a:1});
assert.deepStrictEqual(util._extend({a:1}, []), {a:1});
assert.deepStrictEqual(util._extend({a:1}, null), {a:1});
assert.deepStrictEqual(util._extend({a:1}, true), {a:1});
assert.deepStrictEqual(util._extend({a:1}, false), {a:1});
assert.deepStrictEqual(util._extend({a:1}, {b:2}), {a:1, b:2});
assert.deepStrictEqual(util._extend({a:1, b:2}, {b:3}), {a:1, b:3});
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