Files
learnharness/tests/render-cards.test.tsx
T

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TypeScript

/**
* Render smoke tests — the lesson from the v2 bugs: protocol tests don't see
* rendering. These render the interaction cards to static HTML and assert on
* the output. No DOM needed (react-dom/server).
*
* tsx note: tsx ignores tsconfig's `jsx` field and uses the CLASSIC JSX
* transform (React.createElement), so `React` must be a resolvable global.
* The shim below provides it; Vite/Next use the automatic runtime and don't
* care.
*/
import React from "react";
(globalThis as Record<string, unknown>).React = React;
import assert from "node:assert/strict";
import { describe, it } from "node:test";
import { renderToStaticMarkup } from "react-dom/server";
import { MessageResponse } from "../components/ai-elements/message.tsx";
import { QuestionDock } from "../components/question-dock.tsx";
import { AnsweredCard } from "../components/answered-card.tsx";
import { PlanDivider } from "../components/artifacts/plan-divider.tsx";
import { buildAnswer, coerceCorrectAnswer, normalizeOptions, resolveCorrect, type QuestionData } from "../src/core/question-core.ts";
const quizInput = {
question: "Which planet is closest to the sun?",
options: [{ label: "Venus" }, { label: "Mercury" }, { label: "Mars" }],
correctAnswer: "Mercury",
explanation: "Mercury is the innermost planet.",
};
function quizQD(): QuestionData {
const options = normalizeOptions(quizInput.options);
return {
id: "q1",
kind: "quiz",
question: quizInput.question,
mode: "single-select",
options,
correctIndices: resolveCorrect(coerceCorrectAnswer(quizInput.correctAnswer), options).indices,
explanation: quizInput.explanation,
createdAt: new Date().toISOString(),
};
}
function renderDock(props: { toolName: "quiz" | "ask_user_question"; toolCallId: string; input: never; onSubmit?: () => void }) {
// expanded=true renders the full form (the collapsed bar is covered by the
// QuestionDockBar test below). No scroll context needed — the DockOverlay
// in the chat view owns that.
return renderToStaticMarkup(
<QuestionDock {...props} expanded={true} onExpand={() => {}} onSubmit={props.onSubmit ?? (() => {})} />,
);
}
describe("render smoke tests", () => {
it("QuizCard renders question, options, and the automatic 'I don't know'", () => {
const html = renderDock({ toolName: "quiz", toolCallId: "q1", input: quizInput as never });
assert.match(html, /Which planet is closest to the sun\?/);
assert.match(html, /Mercury/);
assert.match(html, /I don&#x27;t know|I don't know/);
// The unified bottom row: note field + Submit answer live INSIDE the dock.
assert.match(html, /Add a note/, "note field is the dock's bottom row");
assert.match(html, /Submit answer/, "send becomes Submit answer");
// The v1 desync bug: options are buttons with ARIA roles, not native inputs.
assert.ok(!html.includes('type="radio"'), "no native radio inputs");
assert.ok(html.includes('role="radio"'), "button-based radio role present");
});
it("QuizCard never leaks the explanation or the correct answer before submit", () => {
const html = renderDock({ toolName: "quiz", toolCallId: "q1", input: quizInput as never });
assert.ok(!html.includes("innermost"), "explanation must not render pre-answer");
});
it("ask dock renders Other + note field, no grading affordance", () => {
const html = renderDock({
toolName: "ask_user_question",
toolCallId: "a1",
input: { question: "How confident are you?", options: [{ label: "Very" }, { label: "Somewhat" }] } as never,
});
assert.match(html, /Other/);
assert.ok(!html.includes("I don&#x27;t know"), "ask has no 'I don't know'");
assert.match(html, /Add a note/, "ask select-mode also gets the note row");
});
it("AnsweredCard grades quiz answers (✓/✗ + explanation)", () => {
const answer = buildAnswer(quizQD(), { values: ["Venus"] });
const html = renderToStaticMarkup(<AnsweredCard answer={answer} />);
assert.match(html, /incorrect/);
assert.match(html, /innermost/, "explanation renders post-answer");
assert.ok(html.includes("✓") && html.includes("✗"));
});
it("AnsweredCard does NOT grade ask answers", () => {
const qd: QuestionData = {
id: "a1",
kind: "ask",
question: "How confident are you?",
mode: "single-select",
options: normalizeOptions([{ label: "Very" }, { label: "Somewhat" }]),
createdAt: new Date().toISOString(),
};
const answer = buildAnswer(qd, { values: ["Somewhat"] });
const html = renderToStaticMarkup(<AnsweredCard answer={answer} />);
assert.ok(!html.includes("incorrect") && !html.includes("✗"), "ask answers never get quiz grading UI");
assert.match(html, /Somewhat/);
});
it("AnsweredCard renders dismissal as skipped", () => {
const answer = { ...buildAnswer(quizQD(), { dontKnow: true }), dismissed: true };
const html = renderToStaticMarkup(<AnsweredCard answer={answer} />);
assert.match(html, /skipped/);
});
});
describe("math rendering (streamdown + KaTeX)", () => {
// New delimiter contract (W3): the teacher writes \(...\) / \[...\]; a
// bare $ is ALWAYS literal currency (singleDollarTextMath: false kills it
// structurally). transformMathDelimiters rewrites both to the two-dollar
// forms remark-math still parses. Full coverage: render-markdown.test.tsx.
it("renders $...$ as LITERAL text — a $ is never math (the currency fix)", () => {
const html = renderToStaticMarkup(<MessageResponse>{"The map $f(x) = x^2$ is smooth."}</MessageResponse>);
assert.ok(!html.includes("katex"), `$-math must not render, got: ${html.slice(0, 300)}`);
assert.match(html, /\$f\(x\) = x\^2\$/, "old-contract math renders verbatim");
});
it("renders display math ($$ fenced on own lines — the transform's target form)", () => {
const html = renderToStaticMarkup(<MessageResponse>{"$$\n\\int_0^1 x^2\\,dx = \\tfrac{1}{3}\n$$"}</MessageResponse>);
assert.ok(html.includes("katex-display"), "fenced display math should render as display KaTeX");
});
it("one-line $$...$$ renders inline (micromark behavior — the transform relies on it for \(...\))", () => {
// micromark treats a one-line $$...$$ inside a paragraph as 2-dollar
// inline mathText, not flow math. That is exactly how the transformed
// \(...\) renders inline; pin the behavior so a renderer swap can't
// silently change it.
const html = renderToStaticMarkup(<MessageResponse>{"$$\\int_0^1 x^2\\,dx$$"}</MessageResponse>);
assert.ok(html.includes("katex") && !html.includes("katex-display"), "one-liner should render inline");
});
it("does NOT eat escaped currency (\\$5 stays text — belt and suspenders)", () => {
// With singleDollarTextMath: false even a bare $5 can't parse as math;
// an escaped \$ is doubly safe. The prompt contract still asks the
// teacher to prefer plain "$5" (it renders literally now).
const html = renderToStaticMarkup(<MessageResponse>{"It costs \\$5 and \\$10 more."}</MessageResponse>);
assert.ok(!html.includes("katex"), "escaped currency must not parse as math");
assert.match(html, /\$5/);
});
it("quiz cards render math in question, options, and explanation", () => {
const mathQuiz = {
question: "What is \\(\\frac{dy}{dx}\\) of \\(y = x^2\\)?",
options: [{ label: "\\(2x\\)" }, { label: "\\(x^2\\)" }, { label: "\\(x\\)" }],
correctAnswer: "\\(2x\\)",
explanation: "The power rule gives \\(\\frac{dy}{dx} = 2x\\).",
};
const pendingHtml = renderDock({ toolName: "quiz", toolCallId: "m1", input: mathQuiz as never });
assert.ok(pendingHtml.includes("katex"), "pending dock: question/options math renders");
const options = normalizeOptions(mathQuiz.options);
const qd: QuestionData = {
id: "m1",
kind: "quiz",
question: mathQuiz.question,
mode: "single-select",
options,
correctIndices: resolveCorrect(coerceCorrectAnswer(mathQuiz.correctAnswer), options).indices,
explanation: mathQuiz.explanation,
createdAt: new Date().toISOString(),
};
const answeredHtml = renderToStaticMarkup(
<AnsweredCard answer={buildAnswer(qd, { values: ["\\(2x\\)"] })} />,
);
assert.ok(answeredHtml.includes("katex"), "answered card: option/explanation math renders");
});
});
describe("teach-check reveal (W5 phase separation)", () => {
// The collapsed dock renders the bar AND the hidden form (it stays mounted
// so a half-made selection survives) — assertions target the bar species.
it("teach-phase check collapses into the invitation bar, not the scroll bar", () => {
const html = renderToStaticMarkup(
<QuestionDock
toolName="quiz"
toolCallId="t1"
input={quizInput as never}
expanded={false}
reveal
onExpand={() => {}}
onSubmit={() => {}}
/>,
);
assert.ok(html.includes('data-testid="teach-check-reveal"'), "invitation affordance present");
assert.match(html, /Check your understanding/);
assert.match(html, /Which planet is closest/, "question teaser invites, not minimizes");
assert.match(html, /Open/, "a clear reveal action");
});
it("probe questions keep the plain collapsed bar (no invitation copy)", () => {
const html = renderToStaticMarkup(
<QuestionDock
toolName="quiz"
toolCallId="q1"
input={quizInput as never}
expanded={false}
onExpand={() => {}}
onSubmit={() => {}}
/>,
);
assert.ok(html.includes('data-testid="question-dock-bar"'), "the scroll-collapse strip");
assert.ok(!html.includes("Check your understanding"), "no invitation copy outside teach phase");
assert.match(html, /Answer/, "the strip keeps its Answer affordance");
});
it("after the reveal, the teach check renders the full form (probe default, unchanged)", () => {
// Post-click: expanded=true — exactly today's dock. The probe auto-open
// path renders the identical form; this is also the regression pin for it.
const html = renderDock({ toolName: "quiz", toolCallId: "t1", input: quizInput as never });
assert.ok(html.includes('data-testid="question-dock"'), "the form is the dock's content once expanded");
assert.match(html, /Submit answer/);
});
});
describe("PlanDivider (the probe→teach seam)", () => {
const tree = {
nodes: [
{ id: "a", title: "A" },
{ id: "b", title: "B" },
{ id: "c", title: "C" },
],
edges: [{ from: "a", to: "b" }],
currentNodeId: null,
doneNodeIds: [],
version: 1,
};
it("renders the quiet divider with the node count once output-available", () => {
const html = renderToStaticMarkup(
<PlanDivider part={{ type: "tool-plan_init", state: "output-available", toolCallId: "p1", output: { ok: true, tree } }} />,
);
assert.ok(html.includes('data-testid="plan-divider"'));
assert.match(html, /Teaching/);
assert.match(html, /3 nodes/, "node count from the output tree");
assert.ok(!html.includes("banner"), "never a loud banner");
});
it("renders null while the tool streams and on a failed init", () => {
const streaming = renderToStaticMarkup(
<PlanDivider part={{ type: "tool-plan_init", state: "input-streaming", toolCallId: "p1" }} />,
);
assert.equal(streaming, "", "null while input-streaming");
const failed = renderToStaticMarkup(
<PlanDivider
part={{
type: "tool-plan_init",
state: "output-available",
toolCallId: "p1",
output: { ok: false, error: "Tree already initialized", tree },
}}
/>,
);
assert.equal(failed, "", "a refused re-init must not draw a second seam");
});
});