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denoland-deno/cli/js/event_test.ts
Bartek Iwańczuk 8d96dffa41
refactor: rewrite testPerm into unitTest (#4231)
Rewrite "testPerm" helper function used for testing of internal 
runtime code. It's been renamed to "unitTest" and provides API that
is extensible in the future by accepting optional "UnitTestOptions" 
argument. "test" helper was also removed and replaced by
overloaded version of "unitTest" that takes only function argument.

"UnitTestOptions" currently supports "perms" and "skip"
options, where former works exactly as first argument to "testPerm"
did, while the latter allows to conditionally skip tests.
2020-03-04 17:31:14 +01:00

96 lines
3.1 KiB
TypeScript

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { unitTest, assertEquals, assert } from "./test_util.ts";
unitTest(function eventInitializedWithType(): void {
const type = "click";
const event = new Event(type);
assertEquals(event.isTrusted, false);
assertEquals(event.target, null);
assertEquals(event.currentTarget, null);
assertEquals(event.type, "click");
assertEquals(event.bubbles, false);
assertEquals(event.cancelable, false);
});
unitTest(function eventInitializedWithTypeAndDict(): void {
const init = "submit";
const eventInit = { bubbles: true, cancelable: true } as EventInit;
const event = new Event(init, eventInit);
assertEquals(event.isTrusted, false);
assertEquals(event.target, null);
assertEquals(event.currentTarget, null);
assertEquals(event.type, "submit");
assertEquals(event.bubbles, true);
assertEquals(event.cancelable, true);
});
unitTest(function eventComposedPathSuccess(): void {
const type = "click";
const event = new Event(type);
const composedPath = event.composedPath();
assertEquals(composedPath, []);
});
unitTest(function eventStopPropagationSuccess(): void {
const type = "click";
const event = new Event(type);
assertEquals(event.cancelBubble, false);
event.stopPropagation();
assertEquals(event.cancelBubble, true);
});
unitTest(function eventStopImmediatePropagationSuccess(): void {
const type = "click";
const event = new Event(type);
assertEquals(event.cancelBubble, false);
assertEquals(event.cancelBubbleImmediately, false);
event.stopImmediatePropagation();
assertEquals(event.cancelBubble, true);
assertEquals(event.cancelBubbleImmediately, true);
});
unitTest(function eventPreventDefaultSuccess(): void {
const type = "click";
const event = new Event(type);
assertEquals(event.defaultPrevented, false);
event.preventDefault();
assertEquals(event.defaultPrevented, false);
const eventInit = { bubbles: true, cancelable: true } as EventInit;
const cancelableEvent = new Event(type, eventInit);
assertEquals(cancelableEvent.defaultPrevented, false);
cancelableEvent.preventDefault();
assertEquals(cancelableEvent.defaultPrevented, true);
});
unitTest(function eventInitializedWithNonStringType(): void {
// eslint-disable-next-line @typescript-eslint/no-explicit-any
const type: any = undefined;
const event = new Event(type);
assertEquals(event.isTrusted, false);
assertEquals(event.target, null);
assertEquals(event.currentTarget, null);
assertEquals(event.type, "undefined");
assertEquals(event.bubbles, false);
assertEquals(event.cancelable, false);
});
// ref https://github.com/web-platform-tests/wpt/blob/master/dom/events/Event-isTrusted.any.js
unitTest(function eventIsTrusted(): void {
const desc1 = Object.getOwnPropertyDescriptor(new Event("x"), "isTrusted");
assert(desc1);
assertEquals(typeof desc1.get, "function");
const desc2 = Object.getOwnPropertyDescriptor(new Event("x"), "isTrusted");
assert(desc2);
assertEquals(typeof desc2!.get, "function");
assertEquals(desc1!.get, desc2!.get);
});