establish db

apps/web/src/lib/server/image-processing-server.test.ts

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+import { describe, it, expect, vi } from "vitest";
+import { mimeTypeToExtension } from "./image-processing-server";
+
+// Mock sharp dynamically
+const mockSharp = vi.fn(() => ({
+  resize: vi.fn().mockReturnThis(),
+  jpeg: vi.fn().mockReturnThis(),
+  toBuffer: vi.fn().mockResolvedValue(Buffer.from("resized-image-data")),
+}));
+
+vi.doMock("sharp", () => ({
+  default: mockSharp,
+}));
+
+describe("mimeTypeToExtension", () => {
+  it("maps image/png to png", () => {
+    expect(mimeTypeToExtension("image/png")).toBe("png");
+  });
+
+  it("maps image/jpeg to jpg", () => {
+    expect(mimeTypeToExtension("image/jpeg")).toBe("jpg");
+  });
+
+  it("maps image/jpg to jpg", () => {
+    expect(mimeTypeToExtension("image/jpg")).toBe("jpg");
+  });
+
+  it("maps image/webp to webp", () => {
+    expect(mimeTypeToExtension("image/webp")).toBe("webp");
+  });
+
+  it("returns jpg for unknown mime types", () => {
+    expect(mimeTypeToExtension("image/bmp")).toBe("jpg");
+    expect(mimeTypeToExtension("unknown/type")).toBe("jpg");
+  });
+});
+
+describe("resizeImageServer", () => {
+  it("resizes image to specified dimensions", async () => {
+    // Re-import after mock is set up
+    const { resizeImageServer } = await import("./image-processing-server");
+    const buffer = Buffer.from("test-image-data");