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import { assertStrictEquals as equals } from "../../deps/assert.ts";import Events from "../../core/events.ts";
Deno.test("Events", async (t) => {  const events = new Events();  const called = {    beforeBuild: 0,    afterBuild: 0,    afterRender: 0,    beforeSave: 0,    beforeUpdate: 0,  };
  equals(events.listeners.size, 0);
  await t.step("Add events", () => {    events.addEventListener("beforeBuild", () => called.beforeBuild++);    equals(events.listeners.size, 1);
    events.addEventListener("afterBuild", () => called.afterBuild++);    equals(events.listeners.size, 2);  });
  await t.step("Dispatch events", async () => {    await events.dispatchEvent({ type: "afterBuild" });    equals(called.beforeBuild, 0);    equals(called.afterBuild, 1);
    await events.dispatchEvent({ type: "beforeBuild" });    equals(called.beforeBuild, 1);    equals(called.afterBuild, 1);  });
  await t.step("Once events", async () => {    events.addEventListener("afterRender", () => called.afterRender++, {      once: true,    });
    await events.dispatchEvent({ type: "afterRender" });    equals(called.afterRender, 1);
    await events.dispatchEvent({ type: "afterRender" });    equals(called.afterRender, 1);  });
  await t.step("Signal events", async () => {    const controller = new AbortController();
    events.addEventListener("beforeSave", () => called.beforeSave++, {      signal: controller.signal,    });
    await events.dispatchEvent({ type: "beforeSave" });    equals(called.beforeSave, 1);
    await events.dispatchEvent({ type: "beforeSave" });    equals(called.beforeSave, 2);
    controller.abort();
    await events.dispatchEvent({ type: "beforeSave" });    equals(called.beforeSave, 2);  });
  await t.step("Return false", async () => {    events.addEventListener("beforeUpdate", () => called.beforeUpdate++);    events.addEventListener("beforeUpdate", () => true);    events.addEventListener("beforeUpdate", () => called.beforeUpdate++);
    equals(events.listeners.get("beforeUpdate")?.size, 3);    await events.dispatchEvent({ type: "beforeUpdate" });    equals(called.beforeUpdate, 2);
    events.addEventListener("beforeUpdate", () => called.beforeUpdate++);    events.addEventListener("beforeUpdate", () => false);    events.addEventListener("beforeUpdate", () => called.beforeUpdate++);
    await events.dispatchEvent({ type: "beforeUpdate" });    equals(called.beforeUpdate, 5);  });});