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import { test, assertEqual } from "https://deno.land/x/testing/mod.ts";import { compact, difference, trim } from "./util.ts";
test(function compactTest() {  const actual = compact({    foo: true,    bar: false,    baz: null,    qux: "hi"  });  const expected = {    foo: true,    qux: "hi"  };
  assertEqual(actual, expected, "removes falsy values");});
test(function trimTest() {  const actual = trim(" hello world. \n\t ");  const expected = "hello world.";  assertEqual(actual, expected, "trims whitespace");});
test(function differenceTest() {  const actual = difference(["a", "b", "c"], ["b", "c", "d"]);  const expected = ["a"];  assertEqual(    actual,    expected,    "returns an array of elements in list1 that are not in list2"  );});