a17d54d0bf
Using arrow functions changes `this` context, which is undesired in tests, e.g. it makes it impossible to setup things like pretender (`this.server`) in `beforeEach` hooks. Ember guides always use classic functions in examples (e.g. https://guides.emberjs.com/release/testing/test-types/), and that's what it uses in its own test suite, as do various addons and ember apps. It was also already used in Discourse where `this` was required. Moving forward, it will be needed in more places as we migrate toward ember-cli. (I might later add a custom rule to eslint-discourse-ember to enforce this)
55 lines
1.7 KiB
JavaScript
55 lines
1.7 KiB
JavaScript
import { test, module } from "qunit";
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import PreloadStore from "discourse/lib/preload-store";
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import { Promise } from "rsvp";
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module("preload-store", {
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beforeEach() {
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PreloadStore.store("bane", "evil");
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},
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});
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test("get", function (assert) {
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assert.blank(PreloadStore.get("joker"), "returns blank for a missing key");
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assert.equal(
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PreloadStore.get("bane"),
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"evil",
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"returns the value for that key"
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);
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});
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test("remove", function (assert) {
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PreloadStore.remove("bane");
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assert.blank(PreloadStore.get("bane"), "removes the value if the key exists");
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});
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test("getAndRemove returns a promise that resolves to null", async function (assert) {
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assert.blank(await PreloadStore.getAndRemove("joker"));
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});
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test("getAndRemove returns a promise that resolves to the result of the finder", async function (assert) {
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const finder = () => "batdance";
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const result = await PreloadStore.getAndRemove("joker", finder);
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assert.equal(result, "batdance");
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});
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test("getAndRemove returns a promise that resolves to the result of the finder's promise", async function (assert) {
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const finder = () => Promise.resolve("hahahah");
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const result = await PreloadStore.getAndRemove("joker", finder);
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assert.equal(result, "hahahah");
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});
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test("returns a promise that rejects with the result of the finder's rejected promise", async function (assert) {
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const finder = () => Promise.reject("error");
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await PreloadStore.getAndRemove("joker", finder).catch((result) => {
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assert.equal(result, "error");
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});
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});
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test("returns a promise that resolves to 'evil'", async function (assert) {
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const result = await PreloadStore.getAndRemove("bane");
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assert.equal(result, "evil");
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});
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