60 lines
1.8 KiB
JavaScript
60 lines
1.8 KiB
JavaScript
'use strict';
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const controller = new CaptureController();
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const type = 'my-event-type';
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const listeners = {};
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const listener_count = 10;
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for (let i = 0; i < listener_count; i++) {
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listeners[i] = {
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callback: (event) => {
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assert_equals(event.type, type, `Event type sent to listener ${i}`);
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listeners[i].execution_count++;
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}
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};
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}
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test(() => {
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for (const i in listeners) {
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listeners[i].execution_count = 0;
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controller.addEventListener(type, listeners[i].callback);
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}
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controller.dispatchEvent(new Event(type));
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for (const i in listeners) {
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assert_equals(
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listeners[i].execution_count, 1,
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`Callback execution count for listener ${i}`);
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}
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}, 'Registering listeners on CaptureController and dispatching an event.');
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test(() => {
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for (const i in listeners) {
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listeners[i].execution_count = 0;
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}
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controller.dispatchEvent(new Event(type));
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controller.dispatchEvent(new Event(type));
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controller.dispatchEvent(new Event(type));
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for (const i in listeners) {
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assert_equals(
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listeners[i].execution_count, 3,
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`Callback execution count for listener ${i}`);
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}
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}, 'Dispatching an multiple events to CaptureController.');
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test(() => {
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for (const i in listeners) {
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listeners[i].execution_count = 0;
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if (i % 3) {
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listeners[i].removed = false;
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} else {
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listeners[i].removed = true;
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controller.removeEventListener(type, listeners[i].callback);
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};
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}
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controller.dispatchEvent(new Event(type));
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controller.dispatchEvent(new Event(type));
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for (const i in listeners) {
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assert_equals(
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listeners[i].execution_count, listeners[i].removed ? 0 : 2,
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`Callback execution count for listener ${i}`);
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}
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}, 'Unregistering listeners from CaptureController and dispatching an event.');
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