Add test case for the util.js type checking functions.

test/simple/test-util.js

@@ -0,0 +1,67 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+
+var common = 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))
+
+// 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()))
+
+// 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))
+
+// 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([]))