v3: src/components sorted into feature folders, the four largest files split, and the component tests mirror the new layout — 48 components sat in one flat folder, ChatModal ran to 1301 lines, DumpCreateModal to 983, and the tests were grouped by theme, so there was no telling which component had none. Components now live in category/, chat/, comment/, dump/ (with dump/create/ for the new-dump wizard), editor/, form/, layout/ (header, page shell, floating buttons), player/, playlist/, profile/, social/ (vote, like, follow, the who-voted popover) and ui/; FeedTabBar and PresenceRow, used by the index page alone, move to pages/index/. ChatModal gives up ChatMessageItem, PendingItem, ChatEditBox and ReplyRef, the message limits and text helpers (chat/message.ts), the day and clock labels (chat/time.ts) and the draft storage (utils/chatDraft.ts, next to dumpDraft.ts). DumpCreateModal gives up StepIndicator, LocalFilePreview, TitleField and DuplicateNotice; CommentThread gives up CommentForm and CommentNode; TextEditor gives up the emoji picker popup and its skin-tone storage; MediaPlayer gives up its icons (which FilePreview imported from it), Waveform, SeekBar and the remembered volume. NewPlaylistForm, a button that opens a modal holding the form, is NewPlaylistButton now, and Thumbnail, ThumbnailPlaceholder, FilePreview and RichContentCard use named exports like everything else. The tests are split one file per component under src/test/components/<folder>/ (and src/test/pages/index/), the same 625 of them. No behaviour changes; the catalogues only move their source references.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/test/components/dump/FilePreview.test.tsx

@@ -0,0 +1,119 @@
+import { describe, expect, test, vi } from "vitest";
+import { screen } from "@testing-library/react";
+import userEvent from "@testing-library/user-event";
+import { FilePreview } from "../../../components/dump/FilePreview.tsx";
+import { makeDump, makeSession } from "../../fixtures.ts";
+import { renderWithContexts } from "../../render.tsx";
+import {
+  dumpFileUrl,
+  dumpFileVersion,
+  dumpThumbnailUrl,
+} from "../../../utils/urls.ts";
+
+describe("FilePreview", () => {
+  const session = makeSession();
+  const file = (mime: string, over = {}) =>
+    makeDump({
+      id: "f1",
+      kind: "file",
+      fileName: "thing",
+      fileMime: mime,
+      fileSize: 2048,
+      url: undefined,
+      ...over,
+    });
+
+  test("images show inline, with the media token", () => {
+    const d = file("image/png");
+    renderWithContexts(<FilePreview dump={d} />, { session });
+    expect(screen.getByRole("img", { name: "thing" })).toHaveAttribute(
+      "src",
+      `http://localhost:8000/api/files/f1?v=${
+        dumpFileVersion(d)
+      }&token=${session.mediaToken}`,
+    );
+  });
+
+  test("a compact image shows the server's preview, not the upload", () => {
+    const d = file("image/png");
+    renderWithContexts(<FilePreview dump={d} compact />, { session });
+    const img = screen.getByRole("img", { name: "thing" });
+    expect(img).toHaveAttribute("src", dumpThumbnailUrl(d, session.mediaToken));
+    expect(img).toHaveAttribute("loading", "lazy");
+  });
+
+  test("other files are a download link", () => {
+    renderWithContexts(<FilePreview dump={file("application/zip")} />);
+    const link = screen.getByRole("link", { name: /Download thing/ });
+    expect(link).toHaveAttribute("download", "thing");
+    expect(link).toHaveTextContent("(2.0 KB)");
+  });
+
+  test("compact audio plays in the global player", async () => {
+    const play = vi.fn();
+    renderWithContexts(<FilePreview dump={file("audio/mpeg")} compact />, {
+      player: { play },
+    });
+    await userEvent.click(screen.getByRole("button", { name: "Play" }));
+    expect(play).toHaveBeenCalledWith(expect.objectContaining({
+      kind: "file",
+      mimeType: "audio/mpeg",
+      title: "Dump f1",
+      subtitle: "thing",
+      dumpHref: "/dumps/f1",
+      artworkUrl: undefined,
+    }));
+  });
+
+  test("compact video claims its generated still as artwork", async () => {
+    const play = vi.fn();
+    const d = file("video/mp4");
+    renderWithContexts(<FilePreview dump={d} compact />, {
+      player: { play },
+    });
+    await userEvent.click(screen.getByRole("button", { name: "Play" }));
+    expect(play.mock.calls[0][0].artworkUrl).toBe(dumpThumbnailUrl(d));
+    expect(play.mock.calls[0][0].artworkUrl).toMatch(
+      /^http:\/\/localhost:8000\/api\/thumbnails\/f1\?v=2048-\d+$/,
+    );
+  });
+
+  test("the global video button toggles when it's the one playing", async () => {
+    const togglePlay = vi.fn();
+    const d = file("video/mp4");
+    renderWithContexts(<FilePreview dump={d} global />, {
+      player: {
+        togglePlay,
+        playing: true,
+        current: {
+          kind: "file",
+          fileUrl: dumpFileUrl(d),
+          mimeType: "video/mp4",
+        },
+      },
+    });
+    await userEvent.click(screen.getByRole("button", { name: "Pause" }));
+    expect(togglePlay).toHaveBeenCalled();
+  });
+
+  test("the global audio waveform starts playback", async () => {
+    const play = vi.fn();
+    route("GET /api/files/:id", () => new TypeError("no audio in jsdom"));
+    renderWithContexts(<FilePreview dump={file("audio/ogg")} global />, {
+      player: { play },
+    });
+    await userEvent.click(screen.getByRole("button", { name: "Play" }));
+    expect(play).toHaveBeenCalledWith(
+      expect.objectContaining({ kind: "file", mimeType: "audio/ogg" }),
+    );
+  });
+
+  test("compact PDFs and text get an icon", () => {
+    const { container } = renderWithContexts(
+      <FilePreview dump={file("application/pdf")} compact />,
+    );
+    expect(container).toHaveTextContent("📄");
+  });
+});
+
+import { route } from "../../fetch.ts";