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85 lines
1.9 KiB
JavaScript
85 lines
1.9 KiB
JavaScript
/* Any copyright is dedicated to the Public Domain.
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* http://creativecommons.org/publicdomain/zero/1.0/ */
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Components.utils.import("resource://services-common/observers.js");
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var gSubject = {};
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function run_test() {
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run_next_test();
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}
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add_test(function test_function_observer() {
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let foo = false;
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let onFoo = function(subject, data) {
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foo = !foo;
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do_check_eq(subject, gSubject);
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do_check_eq(data, "some data");
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};
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Observers.add("foo", onFoo);
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Observers.notify("foo", gSubject, "some data");
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// The observer was notified after being added.
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do_check_true(foo);
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Observers.remove("foo", onFoo);
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Observers.notify("foo");
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// The observer was not notified after being removed.
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do_check_true(foo);
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run_next_test();
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});
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add_test(function test_method_observer() {
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let obj = {
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foo: false,
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onFoo: function(subject, data) {
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this.foo = !this.foo;
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do_check_eq(subject, gSubject);
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do_check_eq(data, "some data");
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}
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};
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// The observer is notified after being added.
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Observers.add("foo", obj.onFoo, obj);
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Observers.notify("foo", gSubject, "some data");
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do_check_true(obj.foo);
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// The observer is not notified after being removed.
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Observers.remove("foo", obj.onFoo, obj);
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Observers.notify("foo");
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do_check_true(obj.foo);
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run_next_test();
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});
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add_test(function test_object_observer() {
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let obj = {
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foo: false,
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observe: function(subject, topic, data) {
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this.foo = !this.foo;
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do_check_eq(subject, gSubject);
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do_check_eq(topic, "foo");
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do_check_eq(data, "some data");
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}
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};
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Observers.add("foo", obj);
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Observers.notify("foo", gSubject, "some data");
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// The observer is notified after being added.
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do_check_true(obj.foo);
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Observers.remove("foo", obj);
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Observers.notify("foo");
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// The observer is not notified after being removed.
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do_check_true(obj.foo);
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run_next_test();
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});
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