test(#10336): add `components/MkC.*` stories (#13830)

* test(storybook): add `components/MkC.*` stories

* test(storybook): add some tests

* test: add sleep

* test: comment-out flaky test

* test(storybook): add test for `MkChannelFollowButton`

* chore(storybook): tweak sleep duration in `MkChannelFollowButton` story test

* fix(chromatic): add delay to `MkChannelList`

* chore: replace `mswDecorator` with `mswLoader`

* fix(storybook): tweak some parameters

* chore: serve static files

* fix(chromatic): add delay to `MkCwButton`

* chore: delete logging for debug

* fix: add right click in `MkContextMenu` play

* refactor: remove unused imports

1 files changed, 77 insertions, 0 deletions

diff --git a/packages/frontend/src/components/MkChannelFollowButton.stories.impl.ts b/packages/frontend/src/components/MkChannelFollowButton.stories.impl.ts
new file mode 100644
index 0000000000..b99620da22
--- /dev/null
+++ b/packages/frontend/src/components/MkChannelFollowButton.stories.impl.ts
@@ -0,0 +1,77 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+/* eslint-disable @typescript-eslint/explicit-function-return-type */
+/* eslint-disable import/no-default-export */
+import { StoryObj } from '@storybook/vue3';
+import { HttpResponse, http } from 'msw';
+import { action } from '@storybook/addon-actions';
+import { expect, userEvent, within } from '@storybook/test';
+import { channel } from '../../.storybook/fakes.js';
+import { commonHandlers } from '../../.storybook/mocks.js';
+import MkChannelFollowButton from './MkChannelFollowButton.vue';
+import { semaphore } from '@/scripts/test-utils.js';
+import { i18n } from '@/i18n.js';
+
+function sleep(ms: number) {
+	return new Promise(resolve => setTimeout(resolve, ms));
+}
+
+const s = semaphore();
+export const Default = {
+	render(args) {
+		return {
+			components: {
+				MkChannelFollowButton,
+			},
+			setup() {
+				return {
+					args,
+				};
+			},
+			computed: {
+				props() {
+					return {
+						...this.args,
+					};
+				},
+			},
+			template: '<MkChannelFollowButton v-bind="props" />',
+		};
+	},
+	args: {
+		channel: channel(),
+		full: true,
+	},
+	async play({ canvasElement }) {
+		await s.acquire();
+		await sleep(1000);
+		const canvas = within(canvasElement);
+		const buttonElement = canvas.getByRole<HTMLButtonElement>('button');
+		await expect(buttonElement).toHaveTextContent(i18n.ts.follow);
+		await userEvent.click(buttonElement);
+		await sleep(1000);
+		await expect(buttonElement).toHaveTextContent(i18n.ts.unfollow);
+		await sleep(100);
+		await userEvent.click(buttonElement);
+		s.release();
+	},
+	parameters: {
+		layout: 'centered',
+		msw: {
+			handlers: [
+				...commonHandlers,
+				http.post('/api/channels/follow', async ({ request }) => {
+					action('POST /api/channels/follow')(await request.json());
+					return HttpResponse.json({});
+				}),
+				http.post('/api/channels/unfollow', async ({ request }) => {
+					action('POST /api/channels/unfollow')(await request.json());
+					return HttpResponse.json({});
+				}),
+			],
+		},
+	},
+} satisfies StoryObj<typeof MkChannelFollowButton>;