const { resolver, decision } = evaluateMentionGateForMessage({ cfg });

expect(decision.dropReason).toBeNull();

expect(decision.shouldRequireMention).toBe(false);

expect(resolver).toHaveBeenCalledWith(

expect.objectContaining({

accountId: "default",

groupId: "chan-1",

requireMentionOverride: false,

}),

);

expect(resolver).toHaveBeenCalledTimes(1);

const [resolverCall] = resolver.mock.calls[0] ?? [];

expect(resolverCall).toStrictEqual({

cfg,

channel: "mattermost",

accountId: "default",

groupId: "chan-1",

requireMentionOverride: false,

});

});

it("accepts unmentioned thread replies in onmessage mode", () => {

it("finalizes the preview in place when the final targets the same thread", async () => {

const draftStream = createDraftStreamMock();

const deliverFinal = vi.fn(async () => {});

const client = createMattermostClientMock();

await deliverMattermostReplyWithDraftPreview({

payload: { text: "Final answer", replyToId: "child-post-789" } as never,

info: { kind: "final" },

kind: "channel",

client: createMattermostClientMock(),

client,

draftStream,

effectiveReplyToId: "thread-root-456",

resolvePreviewFinalText: (text) => text?.trim(),

deliverFinal,

});

expect(updateMattermostPostSpy).toHaveBeenCalledWith(

expect.anything(),

"preview-post-1",

expect.objectContaining({ message: "Final answer" }),

);

expect(updateMattermostPostSpy).toHaveBeenCalledTimes(1);

const [updateClient, updatePostId, updateParams] = updateMattermostPostSpy.mock.calls[0] ?? [];

expect(updateClient).toBe(client);

expect(updatePostId).toBe("preview-post-1");

expect(updateParams).toStrictEqual({ message: "Final answer" });

expect(draftStream.flush).toHaveBeenCalledTimes(1);

expect(draftStream.seal).toHaveBeenCalledTimes(1);

expect(draftStream.seal.mock.invocationCallOrder[0]).toBeLessThan(

expect(draftStream.discardPending).toHaveBeenCalledTimes(1);

expect(draftStream.clear).not.toHaveBeenCalled();

expect(updateMattermostPostSpy).not.toHaveBeenCalledWith(

expect.anything(),

"preview-post-1",

expect.objectContaining({ message: "↓ See below." }),

);

expect(updateMattermostPostSpy).not.toHaveBeenCalled();

});

});