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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /js/src/tests/ecma_2/extensions/instanceof-002.js | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'js/src/tests/ecma_2/extensions/instanceof-002.js')
-rw-r--r-- | js/src/tests/ecma_2/extensions/instanceof-002.js | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/js/src/tests/ecma_2/extensions/instanceof-002.js b/js/src/tests/ecma_2/extensions/instanceof-002.js new file mode 100644 index 000000000..65708f12a --- /dev/null +++ b/js/src/tests/ecma_2/extensions/instanceof-002.js @@ -0,0 +1,127 @@ +/* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + + +/** + File Name: instanceof-002.js + Section: + Description: Determining Instance Relationships + + This test is the same as js1_3/inherit/proto-002, except that it uses + the builtin instanceof operator rather than a user-defined function + called InstanceOf. + + This tests Object Hierarchy and Inheritance, as described in the document + Object Hierarchy and Inheritance in JavaScript, last modified on 12/18/97 + 15:19:34 on http://devedge.netscape.com/. Current URL: + http://devedge.netscape.com/docs/manuals/communicator/jsobj/contents.htm + + This tests the syntax ObjectName.prototype = new PrototypeObject using the + Employee example in the document referenced above. + + Author: christine@netscape.com + Date: 12 november 1997 +*/ +// onerror = err; + +var SECTION = "instanceof-002"; +var VERSION = "ECMA_2"; +var TITLE = "Determining Instance Relationships"; + +startTest(); +writeHeaderToLog( SECTION + " "+ TITLE); + +function InstanceOf( object, constructor ) { + while ( object != null ) { + if ( object == constructor.prototype ) { + return true; + } + object = object.__proto__; + } + return false; +} + +function Employee ( name, dept ) { + this.name = name || ""; + this.dept = dept || "general"; +} + +function Manager () { + this.reports = []; +} +Manager.prototype = new Employee(); + +function WorkerBee ( name, dept, projs ) { + this.base = Employee; + this.base( name, dept) + this.projects = projs || new Array(); +} +WorkerBee.prototype = new Employee(); + +function SalesPerson () { + this.dept = "sales"; + this.quota = 100; +} +SalesPerson.prototype = new WorkerBee(); + +function Engineer ( name, projs, machine ) { + this.base = WorkerBee; + this.base( name, "engineering", projs ) + this.machine = machine || ""; +} +Engineer.prototype = new WorkerBee(); + +var pat = new Engineer(); + +new TestCase( SECTION, + "pat.__proto__ == Engineer.prototype", + true, + pat.__proto__ == Engineer.prototype ); + +new TestCase( SECTION, + "pat.__proto__.__proto__ == WorkerBee.prototype", + true, + pat.__proto__.__proto__ == WorkerBee.prototype ); + +new TestCase( SECTION, + "pat.__proto__.__proto__.__proto__ == Employee.prototype", + true, + pat.__proto__.__proto__.__proto__ == Employee.prototype ); + +new TestCase( SECTION, + "pat.__proto__.__proto__.__proto__.__proto__ == Object.prototype", + true, + pat.__proto__.__proto__.__proto__.__proto__ == Object.prototype ); + +new TestCase( SECTION, + "pat.__proto__.__proto__.__proto__.__proto__.__proto__ == null", + true, + pat.__proto__.__proto__.__proto__.__proto__.__proto__ == null ); + +new TestCase( SECTION, + "pat instanceof Engineer", + true, + pat instanceof Engineer ); + +new TestCase( SECTION, + "pat instanceof WorkerBee )", + true, + pat instanceof WorkerBee ); + +new TestCase( SECTION, + "pat instanceof Employee )", + true, + pat instanceof Employee ); + +new TestCase( SECTION, + "pat instanceof Object )", + true, + pat instanceof Object ); + +new TestCase( SECTION, + "pat instanceof SalesPerson )", + false, + pat instanceof SalesPerson ); +test(); |