81 lines
2.5 KiB
TypeScript
81 lines
2.5 KiB
TypeScript
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import { test } from 'node:test';
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import assert from 'node:assert/strict';
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import { createStore } from 'jotai';
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import { callEmbedAtom } from './callEmbed';
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import { CallEmbed } from '../plugins/call';
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// callEmbedAtom holds the current CallEmbed in an unexported baseAtom. The setter:
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// - identity no-op guard: setting the same reference does nothing
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// - when replacing a previous embed, calls prevCallEmbed.dispose()
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// We substitute a stub embed exposing a dispose() spy (the real CallEmbed needs a
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// MatrixClient + DOM). `as unknown as CallEmbed` keeps eslint/prettier quiet.
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type StubEmbed = { dispose: () => void; disposed: number };
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const makeEmbed = (): StubEmbed => {
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const stub: StubEmbed = {
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disposed: 0,
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dispose() {
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stub.disposed += 1;
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},
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};
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return stub;
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};
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const asEmbed = (e: StubEmbed): CallEmbed => e as unknown as CallEmbed;
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test('starts undefined', () => {
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const store = createStore();
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assert.equal(store.get(callEmbedAtom), undefined);
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});
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test('sets a call embed', () => {
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const store = createStore();
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const embed = makeEmbed();
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store.set(callEmbedAtom, asEmbed(embed));
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assert.equal(store.get(callEmbedAtom), asEmbed(embed));
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assert.equal(embed.disposed, 0);
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});
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test('replacing an embed disposes the previous one', () => {
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const store = createStore();
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const first = makeEmbed();
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const second = makeEmbed();
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store.set(callEmbedAtom, asEmbed(first));
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store.set(callEmbedAtom, asEmbed(second));
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assert.equal(first.disposed, 1);
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assert.equal(second.disposed, 0);
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assert.equal(store.get(callEmbedAtom), asEmbed(second));
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});
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test('setting the same embed reference is a no-op (no dispose)', () => {
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const store = createStore();
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const embed = makeEmbed();
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store.set(callEmbedAtom, asEmbed(embed));
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store.set(callEmbedAtom, asEmbed(embed));
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assert.equal(embed.disposed, 0);
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assert.equal(store.get(callEmbedAtom), asEmbed(embed));
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});
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test('clearing to undefined disposes the previous embed', () => {
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const store = createStore();
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const embed = makeEmbed();
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store.set(callEmbedAtom, asEmbed(embed));
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store.set(callEmbedAtom, undefined);
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assert.equal(embed.disposed, 1);
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assert.equal(store.get(callEmbedAtom), undefined);
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});
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test('setting undefined when already undefined is a no-op', () => {
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const store = createStore();
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// No previous embed: the identity guard (undefined === undefined) returns early.
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store.set(callEmbedAtom, undefined);
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assert.equal(store.get(callEmbedAtom), undefined);
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});
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