732642856
65 lines
2.9 KiB
TypeScript
65 lines
2.9 KiB
TypeScript
import assert from "node:assert/strict";
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import { readFileSync } from "node:fs";
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import test from "node:test";
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import { chatMessageViews } from "../src/lib/chat-message-view.ts";
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const pageSource = readFileSync(new URL("../src/app/page.tsx", import.meta.url), "utf8");
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const globalStyles = readFileSync(new URL("../src/app/globals.css", import.meta.url), "utf8");
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const previousMessages = [
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{ role: "user", text: "问题" },
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] as const;
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test("keeps the assistant render identity stable when streaming settles", () => {
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// Given: one assistant answer exists first as a transient stream.
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const streaming = chatMessageViews(previousMessages, true, "完整答案");
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// When: the same answer becomes part of the persisted transcript.
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const settled = chatMessageViews([
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...previousMessages,
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{ role: "assistant", text: "完整答案" },
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], false, "");
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// Then: React receives the same key and can reuse the existing message shell.
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assert.equal(streaming.at(-1)?.renderKey, settled.at(-1)?.renderKey);
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assert.equal(streaming.at(-1)?.state, "streaming");
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assert.equal(settled.at(-1)?.state, "settled");
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});
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test("does not duplicate a completed assistant answer while loading state settles", () => {
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// Given: the final answer has entered the transcript while request cleanup lags.
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const completedMessages = [
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...previousMessages,
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{ role: "assistant", text: "完整答案" },
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] as const;
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// When: the render view is derived with the old loading flag still true.
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const views = chatMessageViews(completedMessages, true, "完整答案");
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// Then: only the persisted answer is rendered.
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assert.equal(views.length, completedMessages.length);
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assert.equal(views.at(-1)?.state, "settled");
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});
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test("keeps the suggestion row height stable while an answer streams", () => {
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// Given: a completed answer already supplies follow-up suggestions.
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const suggestionBlock = pageSource.match(/\{activeSuggestions\.length > 0[\s\S]*?<div className="composer-suggestions"[\s\S]*?<\/div>\n\s*\)\}/);
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// When: the suggestion visibility and button state are inspected.
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assert.ok(suggestionBlock);
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// Then: loading disables the actions without removing their layout slot.
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assert.doesNotMatch(suggestionBlock[0].split("<div className=", 1)[0], /!isLoading/);
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assert.match(suggestionBlock[0], /disabled=\{[^}]*isLoading/);
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});
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test("docks the composer inside the chat panel instead of floating over content", () => {
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assert.match(pageSource, /<div className="composer-wrap">/);
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assert.match(globalStyles, /\.chat-panel[^}]*grid-template-rows:\s*68px minmax\(0,\s*1fr\) auto/);
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assert.match(globalStyles, /\.conversation[^}]*padding-bottom:\s*var\(--composer-reserve\)/);
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assert.match(globalStyles, /\.composer-wrap[^}]*position:\s*sticky/);
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assert.match(globalStyles, /\.composer-wrap[^}]*bottom:\s*0/);
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assert.doesNotMatch(globalStyles, /\.composer-wrap[^}]*position:\s*fixed/);
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});
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