gecko-dev/addon-sdk/source/test/test-cortex.js

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3.9 KiB
JavaScript

/* 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/. */
// vim:set ts=2 sw=2 sts=2
"use strict";
var Cortex = require("sdk/deprecated/cortex").Cortex;
exports["test property changes propagate"] = function (assert) {
var source = {
_foo: "secret",
get foo() {
return this._foo;
},
set foo(value) {
this._foo = value;
},
get getOnly() {
return this._foo;
},
set setOnly(value) {
this._setOnly = value;
},
bar: "public",
method: function method(a, b) {
return this._foo + a + b
}
};
var fixture = Cortex(source);
assert.ok(!('_foo' in fixture),
"properties that start with `_` are omitted");
assert.equal(fixture.foo, "secret", "get accessor alias works");
fixture.foo = "new secret";
assert.equal(fixture.foo, "new secret", "set accessor alias works");
assert.equal(source.foo, "new secret", "accessor delegates to the source");
assert.equal(fixture.bar, "public", "data property alias works");
fixture.bar = "bar";
assert.equal(source.bar, "bar", "data property change propagates");
source.bar = "foo"
assert.equal(fixture.bar, "foo", "data property change probagets back");
assert.equal(fixture.method("a", "b"), "new secretab",
"public methods are callable");
assert.equal(fixture.method.call({ _foo: "test" }, " a,", "b"),
"new secret a,b",
"`this` pseudo-variable can not be passed through call.");
assert.equal(fixture.method.apply({ _foo: "test" }, [" a,", "b"]),
"new secret a,b",
"`this` pseudo-variable can not be passed through apply.");
assert.equal(fixture.getOnly, source._foo,
"getter returned property of wrapped object");
fixture.setOnly = 'bar'
assert.equal(source._setOnly, 'bar', "setter modified wrapped object")
};
exports["test immunity of inheritance"] = function(assert) {
function Type() {}
Type.prototype = {
constructor: Type,
_bar: 2,
bar: 3,
get_Foo: function getFoo() {
return this._foo;
}
}
var source = Object.create(Type.prototype, {
_foo: { value: 'secret' },
getBar: { value: function get_Bar() {
return this.bar
}},
get_Bar: { value: function getBar() {
return this._bar
}}
});
var fixture = Cortex(source);
assert.ok(Cortex({}, null, Type.prototype) instanceof Type,
"if custom prototype is providede cortex will inherit from it");
assert.ok(fixture instanceof Type,
"if no prototype is given cortex inherits from object's prototype");
source.bar += 1;
assert.notEqual(fixture.bar, source.bar,
"chages of properties don't propagate to non-aliases");
assert.equal(fixture.getBar(), source.bar,
"methods accessing public properties are bound to the source");
fixture._bar += 1;
assert.notEqual(fixture._bar, source._bar,
"changes of non aliased properties don't propagate");
assert.equal(fixture.get_Bar(), source._bar,
"methods accessing privates are bound to the source");
assert.notEqual(fixture.get_Foo(), source._foo,
"prototoype methods are not bound to the source");
}
exports["test customized public properties"] = function(assert) {
var source = {
_a: 'a',
b: 'b',
get: function get(name) {
return this[name];
}
};
var fixture = Cortex(source, ['_a', 'get']);
fixture._a += "#change";
assert.ok(!("b" in fixture), "non-public own property is not defined");
assert.equal(fixture.get("b"), source.b,
"public methods preserve access to the private properties");
assert.equal(fixture._a, source._a,
"custom public property changes propagate");
}
//if (require.main == module)
require("test").run(exports);