const result = await resolveSlackMedia({

files: [

{ url_private: "https://files.slack.com/a.jpg", name: "a.jpg" },

{ url_private: "https://files.slack.com/b.png", name: "b.png" },

{ id: "FA", url_private: "https://files.slack.com/a.jpg", name: "a.jpg" },

{ id: "FB", url_private: "https://files.slack.com/b.png", name: "b.png" },

],

token: "xoxb-test-token",

maxBytes: 1024 * 1024,

});

expect(result).toHaveLength(2);

expect(result![0].path).toBe("/tmp/a.jpg");

expect(result![0].placeholder).toBe("[Slack file: a.jpg]");

expect(result![0].placeholder).toBe("[Slack file: a.jpg (fileId: FA)]");

expect(result![1].path).toBe("/tmp/b.png");

expect(result![1].placeholder).toBe("[Slack file: b.png]");

expect(result![1].placeholder).toBe("[Slack file: b.png (fileId: FB)]");

});

it("caps downloads to 8 files for large multi-attachment messages", async () => {

it("includes file-only messages and drops empty-only entries", async () => {

const replies = vi.fn().mockResolvedValueOnce({

messages: [

{ text: " ", ts: "1.000", files: [{ name: "screenshot.png" }] },

{ text: " ", ts: "1.000", files: [{ id: "FSCREEN", name: "screenshot.png" }] },

{ text: " ", ts: "2.000" },

{ text: "hello", ts: "3.000", user: "U1" },

],

});

expect(result).toHaveLength(2);

expect(result[0]?.text).toBe("[attached: screenshot.png]");

expect(result[0]?.text).toBe("[attached: screenshot.png (fileId: FSCREEN)]");

expect(result[1]?.text).toBe("hello");

});

text: " ",

user: "U1",

ts: "1.000",

files: [{ name: "root.png", mimetype: "image/png" }],

files: [{ id: "FROOT", name: "root.png", mimetype: "image/png" }],

},

],

});

});

expect(result).toEqual({

text: "[attached: root.png]",

text: "[attached: root.png (fileId: FROOT)]",

userId: "U1",

botId: undefined,

ts: "1.000",

files: [{ name: "root.png", mimetype: "image/png" }],

files: [{ id: "FROOT", name: "root.png", mimetype: "image/png" }],

});

expect(vi.mocked(logVerbose)).not.toHaveBeenCalled();

});