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import isPromise, { isNotPromise } from "./isPromise.ts";import { assertEquals, assertNotEquals } from "testing/asserts.ts";
Deno.test("is promise", () => {  const prom = new Promise(() => {});
  assertEquals(isPromise(2), false);  assertEquals(isPromise(""), false);  assertEquals(isPromise(null), false);  assertEquals(isPromise({}), false);  assertEquals(    isPromise(() => {}),    false,  );  assertEquals(    isPromise(async () => {}),    false,  );  assertEquals(isPromise({ then: "" }), false);
  assertEquals(isPromise(prom), true);  assertEquals(isPromise((async () => {})()), true);  assertEquals(isPromise({ then() {} }), true);
  assertNotEquals(isPromise(1), isNotPromise(1));  assertNotEquals(isPromise(prom), isNotPromise(prom));});