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|
import type { StepId } from "@dispatch/wire";
import { render, screen, within } from "@testing-library/svelte";
import userEvent from "@testing-library/user-event";
import { describe, expect, it, vi } from "vitest";
import type { RenderedChunk } from "../../core/chunks";
import type { TurnMetricsEntry } from "../../core/metrics";
import ChatView from "./ui/ChatView.svelte";
import Composer from "./ui/Composer.svelte";
import ModelSelector from "./ui/ModelSelector.svelte";
import ReasoningEffortSelector from "./ui/ReasoningEffortSelector.svelte";
describe("ChatView", () => {
it("renders a message's text chunk", () => {
const chunks: RenderedChunk[] = [
{
seq: 1,
role: "assistant",
chunk: { type: "text", text: "Hello world" },
provisional: false,
},
];
render(ChatView, { props: { chunks } });
expect(screen.getByText("Hello world")).toBeInTheDocument();
});
it("renders multiple chunks", () => {
const chunks: RenderedChunk[] = [
{ seq: 1, role: "user", chunk: { type: "text", text: "Hi there" }, provisional: false },
{
seq: 2,
role: "assistant",
chunk: { type: "text", text: "Hello!" },
provisional: false,
},
];
render(ChatView, { props: { chunks } });
expect(screen.getByText("Hi there")).toBeInTheDocument();
expect(screen.getByText("Hello!")).toBeInTheDocument();
});
it("shows the show-earlier button only when earlier history is unloaded, and pages it in", async () => {
const chunks: RenderedChunk[] = [
{ seq: 26, role: "user", chunk: { type: "text", text: "later" }, provisional: false },
];
let resolveEarlier: (() => void) | undefined;
const onShowEarlier = vi.fn(
() =>
new Promise<void>((resolve) => {
resolveEarlier = resolve;
}),
);
render(ChatView, { props: { chunks, hasEarlier: true, onShowEarlier } });
const button = screen.getByRole("button", { name: /show earlier messages/i });
const user = userEvent.setup();
await user.click(button);
expect(onShowEarlier).toHaveBeenCalledTimes(1);
// While the page-in is awaited the button is disabled (no double-fire).
expect(screen.getByRole("button", { name: /loading earlier messages/i })).toBeDisabled();
resolveEarlier?.();
await vi.waitFor(() => {
expect(screen.getByRole("button", { name: /show earlier messages/i })).toBeEnabled();
});
});
it("hides the show-earlier button when nothing is unloaded", () => {
const chunks: RenderedChunk[] = [
{ seq: 1, role: "user", chunk: { type: "text", text: "all here" }, provisional: false },
];
render(ChatView, { props: { chunks, hasEarlier: false, onShowEarlier: vi.fn() } });
expect(screen.queryByRole("button", { name: /show earlier/i })).not.toBeInTheDocument();
});
it("renders tool-call chunks", () => {
const chunks: RenderedChunk[] = [
{
seq: 1,
role: "assistant",
chunk: {
type: "tool-call",
toolCallId: "tc1",
toolName: "read_file",
input: { path: "/tmp/test.txt" },
},
provisional: false,
},
];
render(ChatView, { props: { chunks } });
expect(screen.getByText("read_file")).toBeInTheDocument();
const pre = screen.getByText((content, element) => {
return element?.tagName === "PRE" && content.includes("/tmp/test.txt");
});
expect(pre).toBeInTheDocument();
});
it("renders tool-result chunks", () => {
const chunks: RenderedChunk[] = [
{
seq: 1,
role: "tool",
chunk: {
type: "tool-result",
toolCallId: "tc1",
toolName: "read_file",
content: "file contents here",
isError: false,
},
provisional: false,
},
];
render(ChatView, { props: { chunks } });
expect(screen.getByText("read_file")).toBeInTheDocument();
expect(screen.getByText("file contents here")).toBeInTheDocument();
});
it("renders error chunks with alert role", () => {
const chunks: RenderedChunk[] = [
{
seq: 1,
role: "assistant",
chunk: { type: "error", message: "Something failed" },
provisional: false,
},
];
render(ChatView, { props: { chunks } });
const alert = screen.getByRole("alert");
expect(alert).toHaveTextContent("Something failed");
});
it("renders error chunks with code", () => {
const chunks: RenderedChunk[] = [
{
seq: 1,
role: "assistant",
chunk: { type: "error", message: "Rate limited", code: "RATE_LIMIT" },
provisional: false,
},
];
render(ChatView, { props: { chunks } });
expect(screen.getByText("Rate limited")).toBeInTheDocument();
expect(screen.getByText("[RATE_LIMIT]")).toBeInTheDocument();
});
it("renders system chunks", () => {
const chunks: RenderedChunk[] = [
{
seq: 1,
role: "system",
chunk: { type: "system", text: "System context loaded" },
provisional: false,
},
];
render(ChatView, { props: { chunks } });
expect(screen.getByText("System context loaded")).toBeInTheDocument();
});
it("renders provisional (in-flight) chunks without any dimming", () => {
const chunks: RenderedChunk[] = [
{
seq: null,
role: "assistant",
chunk: { type: "text", text: "Streaming..." },
provisional: true,
},
];
render(ChatView, { props: { chunks } });
// In-flight chunks render at full opacity (no faded "disabled" look).
const wrapper = screen.getByText("Streaming...").closest("div");
expect(wrapper).not.toHaveClass("opacity-50");
});
it("renders empty transcript", () => {
render(ChatView, { props: { chunks: [] } });
const log = screen.getByRole("log");
expect(log).toBeInTheDocument();
expect(log.children).toHaveLength(0);
});
it("groups batched tool calls (shared stepId) into one DaisyUI list", () => {
const chunks: RenderedChunk[] = [
{
seq: 1,
role: "assistant",
chunk: {
type: "tool-call",
toolCallId: "a",
toolName: "read_file",
input: { path: "/a" },
stepId: "t1#0" as StepId,
},
provisional: false,
},
{
seq: 2,
role: "assistant",
chunk: {
type: "tool-call",
toolCallId: "b",
toolName: "list_dir",
input: { path: "/b" },
stepId: "t1#0" as StepId,
},
provisional: false,
},
{
seq: 3,
role: "tool",
chunk: {
type: "tool-result",
toolCallId: "a",
toolName: "read_file",
content: "contents-of-a",
isError: false,
stepId: "t1#0" as StepId,
},
provisional: false,
},
];
const { container } = render(ChatView, { props: { chunks } });
// One DaisyUI list with two rows (one per call), not separate cards.
const lists = container.querySelectorAll("ul.list");
expect(lists).toHaveLength(1);
expect(container.querySelectorAll("ul.list > li.list-row")).toHaveLength(2);
// Both call names + the available result are shown; the result is absorbed
// (no standalone tool-result card).
expect(screen.getByText("read_file")).toBeInTheDocument();
expect(screen.getByText("list_dir")).toBeInTheDocument();
expect(screen.getByText("contents-of-a")).toBeInTheDocument();
});
it("thinking is a checkbox collapse (no arrow) inside a visible bubble", () => {
const chunks: RenderedChunk[] = [
{
seq: null,
role: "assistant",
chunk: { type: "thinking", text: "Let me think..." },
provisional: true,
streaming: true,
},
];
const { container } = render(ChatView, { props: { chunks } });
const collapse = container.querySelector(".collapse");
expect(collapse).not.toBeNull();
expect(collapse).not.toHaveClass("collapse-arrow"); // no indicator icon
expect(collapse).not.toHaveClass("collapse-plus");
// Visible bubble, like tool cards.
expect(collapse).toHaveClass("bg-base-200");
expect(collapse).toHaveClass("rounded-box");
expect(screen.getByRole("checkbox", { name: "Toggle thoughts" })).toBeInTheDocument();
});
it("title is 'Thinking' + dots while streaming, then 'Thoughts' with no dots once complete; open state persists", async () => {
const streaming: RenderedChunk[] = [
{
seq: null,
role: "assistant",
chunk: { type: "thinking", text: "hmm" },
provisional: true,
streaming: true,
},
];
const { container, rerender } = render(ChatView, { props: { chunks: streaming } });
// Streaming: "Thinking" + loading dots.
expect(screen.getByText("Thinking")).toBeInTheDocument();
expect(screen.queryByText("Thoughts")).toBeNull();
expect(container.querySelector(".loading")).not.toBeNull();
// Open it.
const checkbox = screen.getByRole("checkbox", { name: "Toggle thoughts" });
await userEvent.click(checkbox);
expect(checkbox).toBeChecked();
// Transition generating → completed/committed (seq assigned, no longer streaming).
await rerender({
chunks: [
{
seq: 1,
role: "assistant",
chunk: { type: "thinking", text: "hmm, all done" },
provisional: false,
},
],
});
// Completed: "Thoughts", no dots — and the open state survived the transition.
expect(screen.getByText("Thoughts")).toBeInTheDocument();
expect(screen.queryByText("Thinking")).toBeNull();
expect(container.querySelector(".loading")).toBeNull();
expect(screen.getByRole("checkbox", { name: "Toggle thoughts" })).toBeChecked();
expect(container).toHaveTextContent("hmm, all done");
});
it("renders step and turn metrics as separate rows", () => {
const chunks: RenderedChunk[] = [
{ seq: 1, role: "user", chunk: { type: "text", text: "Hi" }, provisional: false },
{
seq: 2,
role: "assistant",
chunk: { type: "text", text: "Hello!" },
provisional: false,
},
{
seq: 3,
role: "assistant",
chunk: {
type: "tool-call",
toolCallId: "tc1",
toolName: "test",
input: {},
stepId: "t1#0" as StepId,
},
provisional: false,
},
];
const turnMetrics: TurnMetricsEntry[] = [
{
turnId: "t1",
steps: [
{
stepId: "t1#0" as StepId,
usage: { inputTokens: 100, outputTokens: 50 },
genTotalMs: 800,
},
],
total: {
turnId: "t1",
usage: { inputTokens: 100, outputTokens: 50 },
durationMs: 1200,
steps: [
{
stepId: "t1#0" as StepId,
usage: { inputTokens: 100, outputTokens: 50 },
genTotalMs: 800,
},
],
},
},
];
render(ChatView, { props: { chunks, turnMetrics } });
expect(screen.getByText("Hi")).toBeInTheDocument();
expect(screen.getByText("Hello!")).toBeInTheDocument();
expect(screen.getByText(/step 1/)).toBeInTheDocument();
expect(screen.getAllByText(/150 tok/)).toHaveLength(2);
expect(screen.getByText(/turn 1 · 150 tok \(100 in \/ 50 out\)/)).toBeInTheDocument();
expect(screen.getByText(/1\.2s/)).toBeInTheDocument();
});
it("renders cache hit-rate badges (Last turn + Chat Total) coloured by level", () => {
const chunks: RenderedChunk[] = [
{ seq: 1, role: "user", chunk: { type: "text", text: "Hi" }, provisional: false },
{
seq: 2,
role: "assistant",
chunk: { type: "text", text: "Hello!" },
provisional: false,
},
];
const turnMetrics: TurnMetricsEntry[] = [
{
turnId: "t1",
steps: [],
total: {
turnId: "t1",
usage: { inputTokens: 100, outputTokens: 10, cacheReadTokens: 93 },
steps: [],
},
},
];
const { container } = render(ChatView, { props: { chunks, turnMetrics } });
expect(screen.getByText("Last turn:")).toBeInTheDocument();
expect(screen.getByText("Chat Total:")).toBeInTheDocument();
// single turn ⇒ both the turn rate and the cumulative are 93% ⇒ success badge
const badges = container.querySelectorAll(".badge");
expect(badges).toHaveLength(2);
for (const b of badges) {
expect(b.textContent).toBe("93%");
expect(b.classList.contains("badge-success")).toBe(true);
}
});
it("renders step-metrics inline after tool group", () => {
const chunks: RenderedChunk[] = [
{ seq: 1, role: "user", chunk: { type: "text", text: "Run it" }, provisional: false },
{
seq: 2,
role: "assistant",
chunk: {
type: "tool-call",
toolCallId: "tc1",
toolName: "bash",
input: { command: "ls" },
stepId: "t1#0" as StepId,
},
provisional: false,
},
{
seq: 3,
role: "tool",
chunk: {
type: "tool-result",
toolCallId: "tc1",
toolName: "bash",
content: "file.txt",
isError: false,
stepId: "t1#0" as StepId,
},
provisional: false,
},
{
seq: 4,
role: "assistant",
chunk: { type: "text", text: "Done!" },
provisional: false,
},
];
const turnMetrics: TurnMetricsEntry[] = [
{
turnId: "t1",
steps: [
{
stepId: "t1#0" as StepId,
usage: { inputTokens: 80, outputTokens: 20 },
genTotalMs: 300,
},
],
total: {
turnId: "t1",
usage: { inputTokens: 80, outputTokens: 20 },
durationMs: 500,
steps: [
{
stepId: "t1#0" as StepId,
usage: { inputTokens: 80, outputTokens: 20 },
genTotalMs: 300,
},
],
},
},
];
render(ChatView, { props: { chunks, turnMetrics } });
// Both step-metrics and turn-metrics render
expect(screen.getByText(/step 1/)).toBeInTheDocument();
expect(screen.getByText(/turn 1 · 100 tok/)).toBeInTheDocument();
// They are in separate elements (different rows)
const stepEl = screen.getByText(/step 1 · 100 tok/).closest("div");
const turnEl = screen.getByText(/turn 1 · 100 tok/).closest("div");
expect(stepEl).not.toBe(turnEl);
});
it("renders no metrics bubble when turnMetrics is empty", () => {
const chunks: RenderedChunk[] = [
{ seq: 1, role: "user", chunk: { type: "text", text: "Hi" }, provisional: false },
{
seq: 2,
role: "assistant",
chunk: { type: "text", text: "Hello!" },
provisional: false,
},
];
render(ChatView, { props: { chunks, turnMetrics: [] } });
expect(screen.getByText("Hi")).toBeInTheDocument();
expect(screen.getByText("Hello!")).toBeInTheDocument();
expect(screen.queryByText(/step 1/)).toBeNull();
expect(screen.queryByText(/^turn/)).toBeNull();
});
it("omits null view values from metrics bubbles", () => {
const chunks: RenderedChunk[] = [
{ seq: 1, role: "user", chunk: { type: "text", text: "Test" }, provisional: false },
{
seq: 2,
role: "assistant",
chunk: { type: "text", text: "Response" },
provisional: false,
},
{
seq: 3,
role: "assistant",
chunk: {
type: "tool-call",
toolCallId: "tc1",
toolName: "test",
input: {},
stepId: "t1#0" as StepId,
},
provisional: false,
},
];
const turnMetrics: TurnMetricsEntry[] = [
{
turnId: "t1",
steps: [
{
stepId: "t1#0" as StepId,
usage: { inputTokens: 10, outputTokens: 5 },
},
],
total: {
turnId: "t1",
usage: { inputTokens: 10, outputTokens: 5 },
steps: [
{
stepId: "t1#0" as StepId,
usage: { inputTokens: 10, outputTokens: 5 },
},
],
},
},
];
render(ChatView, { props: { chunks, turnMetrics } });
// Step metrics rendered
expect(screen.getByText(/step 1/)).toBeInTheDocument();
expect(screen.getAllByText(/15 tok/)).toHaveLength(2);
// Turn metrics rendered
expect(screen.getByText(/turn 1 · 15 tok \(10 in \/ 5 out\)/)).toBeInTheDocument();
// No "null" or "undefined" in the DOM
expect(screen.queryByText("null")).toBeNull();
expect(screen.queryByText("undefined")).toBeNull();
});
it("renders step text but no turn total for a progressive turn (total: null)", () => {
const chunks: RenderedChunk[] = [
{ seq: 1, role: "user", chunk: { type: "text", text: "Hi" }, provisional: false },
{
seq: 2,
role: "assistant",
chunk: { type: "text", text: "Hello!" },
provisional: false,
},
{
seq: 3,
role: "assistant",
chunk: {
type: "tool-call",
toolCallId: "tc1",
toolName: "test",
input: {},
stepId: "t1#0" as StepId,
},
provisional: false,
},
];
const turnMetrics: TurnMetricsEntry[] = [
{
turnId: "t1",
steps: [
{
stepId: "t1#0" as StepId,
usage: { inputTokens: 100, outputTokens: 50 },
genTotalMs: 800,
},
],
total: null,
},
];
render(ChatView, { props: { chunks, turnMetrics } });
// Step metrics should render
expect(screen.getByText(/step 1/)).toBeInTheDocument();
expect(screen.getByText(/150 tok/)).toBeInTheDocument();
// Turn total should NOT render (total is null — turn still in progress)
expect(screen.queryByText(/^turn/)).toBeNull();
});
});
describe("Composer", () => {
it("calls onSend with the typed text and clears", async () => {
const onSend = vi.fn();
const user = userEvent.setup();
render(Composer, { props: { onSend } });
const textarea = screen.getByRole("textbox", { name: "Message input" });
await user.type(textarea, "Hello world");
const sendButton = screen.getByRole("button", { name: "Send" });
await user.click(sendButton);
expect(onSend).toHaveBeenCalledTimes(1);
expect(onSend).toHaveBeenCalledWith("Hello world");
expect(textarea).toHaveValue("");
});
it("does not call onSend with empty text", async () => {
const onSend = vi.fn();
const _user = userEvent.setup();
render(Composer, { props: { onSend } });
const sendButton = screen.getByRole("button", { name: "Send" });
expect(sendButton).toBeDisabled();
expect(onSend).not.toHaveBeenCalled();
});
it("trims whitespace before sending", async () => {
const onSend = vi.fn();
const user = userEvent.setup();
render(Composer, { props: { onSend } });
const textarea = screen.getByRole("textbox", { name: "Message input" });
await user.type(textarea, " hello ");
const sendButton = screen.getByRole("button", { name: "Send" });
await user.click(sendButton);
expect(onSend).toHaveBeenCalledWith("hello");
});
it("sends on Enter key (without Shift)", async () => {
const onSend = vi.fn();
const user = userEvent.setup();
render(Composer, { props: { onSend } });
const textarea = screen.getByRole("textbox", { name: "Message input" });
await user.type(textarea, "Test message{Enter}");
expect(onSend).toHaveBeenCalledWith("Test message");
});
it("does not send on Shift+Enter", async () => {
const onSend = vi.fn();
const user = userEvent.setup();
render(Composer, { props: { onSend } });
const textarea = screen.getByRole("textbox", { name: "Message input" });
await user.type(textarea, "Line 1{Shift>}{Enter}{/Shift}Line 2");
expect(onSend).not.toHaveBeenCalled();
});
});
describe("ModelSelector", () => {
const optionValues = (el: HTMLElement): string[] =>
within(el)
.getAllByRole("option")
.map((o) => (o as HTMLOptionElement).value);
it("renders a key selector (distinct keys) and a model selector (models for the current key)", () => {
const models = ["openai/gpt-4", "openai/gpt-4o", "anthropic/claude-3", "google/gemini"];
render(ModelSelector, {
props: { models, selected: "anthropic/claude-3", onSelect: vi.fn() },
});
const keySelect = screen.getByRole("combobox", { name: "Key selector" });
const modelSelect = screen.getByRole("combobox", { name: "Model selector" });
expect(keySelect).toHaveValue("anthropic");
expect(modelSelect).toHaveValue("claude-3");
expect(optionValues(keySelect)).toEqual(["openai", "anthropic", "google"]);
// only the models under the selected key
expect(optionValues(modelSelect)).toEqual(["claude-3"]);
});
it("selecting a key switches to the first model under it", async () => {
const onSelect = vi.fn();
const user = userEvent.setup();
const models = ["openai/gpt-4", "openai/gpt-4o", "anthropic/claude-3"];
render(ModelSelector, {
props: { models, selected: "openai/gpt-4o", onSelect },
});
await user.selectOptions(screen.getByRole("combobox", { name: "Key selector" }), "anthropic");
expect(onSelect).toHaveBeenCalledTimes(1);
expect(onSelect).toHaveBeenCalledWith("anthropic/claude-3");
});
it("selecting a model keeps the current key", async () => {
const onSelect = vi.fn();
const user = userEvent.setup();
const models = ["openai/gpt-4", "openai/gpt-4o"];
render(ModelSelector, {
props: { models, selected: "openai/gpt-4", onSelect },
});
await user.selectOptions(screen.getByRole("combobox", { name: "Model selector" }), "gpt-4o");
expect(onSelect).toHaveBeenCalledTimes(1);
expect(onSelect).toHaveBeenCalledWith("openai/gpt-4o");
});
});
describe("ReasoningEffortSelector", () => {
it("renders null (never set) as the default level, marked '(default)'", () => {
render(ReasoningEffortSelector, { props: { persisted: null, save: vi.fn() } });
const select = screen.getByRole("combobox", { name: "Reasoning effort" });
expect(select).toHaveValue("high");
expect(within(select).getByRole("option", { name: "high (default)" })).toBeInTheDocument();
// All five ladder levels are offered.
expect(within(select).getAllByRole("option")).toHaveLength(5);
});
it("renders a persisted level as selected", () => {
render(ReasoningEffortSelector, { props: { persisted: "xhigh", save: vi.fn() } });
expect(screen.getByRole("combobox", { name: "Reasoning effort" })).toHaveValue("xhigh");
});
it("selecting a level saves it via the injected port and confirms", async () => {
const save = vi.fn(async (level: "low" | "medium" | "high" | "xhigh" | "max") => ({
ok: true as const,
reasoningEffort: level,
}));
const user = userEvent.setup();
render(ReasoningEffortSelector, { props: { persisted: null, save } });
await user.selectOptions(screen.getByRole("combobox", { name: "Reasoning effort" }), "max");
expect(save).toHaveBeenCalledTimes(1);
expect(save).toHaveBeenCalledWith("max");
await vi.waitFor(() => {
expect(screen.getByText(/applies from the next turn/i)).toBeInTheDocument();
});
expect(screen.getByRole("combobox", { name: "Reasoning effort" })).toHaveValue("max");
});
it("a failed save shows the error and reverts to the persisted value", async () => {
const save = vi.fn(async () => ({ ok: false as const, error: "nope" }));
const user = userEvent.setup();
render(ReasoningEffortSelector, { props: { persisted: "low", save } });
await user.selectOptions(screen.getByRole("combobox", { name: "Reasoning effort" }), "max");
await vi.waitFor(() => {
expect(screen.getByText("nope")).toBeInTheDocument();
});
expect(screen.getByRole("combobox", { name: "Reasoning effort" })).toHaveValue("low");
});
it("disables the select while a save is in flight (no double-fire)", async () => {
let resolveSave: ((r: { ok: true; reasoningEffort: "max" }) => void) | undefined;
const save = vi.fn(
() =>
new Promise<{ ok: true; reasoningEffort: "max" }>((resolve) => {
resolveSave = resolve;
}),
);
const user = userEvent.setup();
render(ReasoningEffortSelector, { props: { persisted: null, save } });
await user.selectOptions(screen.getByRole("combobox", { name: "Reasoning effort" }), "max");
expect(screen.getByRole("combobox", { name: "Reasoning effort" })).toBeDisabled();
resolveSave?.({ ok: true, reasoningEffort: "max" });
await vi.waitFor(() => {
expect(screen.getByRole("combobox", { name: "Reasoning effort" })).toBeEnabled();
});
});
});
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