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import type { AgentEvent, ConversationMeta } from "@dispatch/transport-contract";
import type { StepId } from "@dispatch/wire";
import { describe, expect, it } from "vitest";
import {
extractLastText,
formatConversationList,
formatRelativeTime,
renderEvent,
} from "./render.js";
describe("renderEvent", () => {
const opts = { showReasoning: false };
const optsReasoning = { showReasoning: true };
it("renders text-delta as stdout", () => {
const e: AgentEvent = {
type: "text-delta",
conversationId: "c",
turnId: "t",
delta: "hello",
};
expect(renderEvent(e, opts)).toEqual({ stdout: "hello" });
});
it("hides reasoning-delta by default", () => {
const e: AgentEvent = {
type: "reasoning-delta",
conversationId: "c",
turnId: "t",
delta: "thinking...",
};
expect(renderEvent(e, opts)).toBeUndefined();
});
it("shows reasoning-delta when showReasoning is true", () => {
const e: AgentEvent = {
type: "reasoning-delta",
conversationId: "c",
turnId: "t",
delta: "thinking...",
};
expect(renderEvent(e, optsReasoning)).toEqual({ stdout: "thinking..." });
});
it("renders tool-call with name and JSON input", () => {
const e: AgentEvent = {
type: "tool-call",
conversationId: "c",
turnId: "t",
stepId: "t1#0" as StepId,
toolCallId: "tc1",
toolName: "read_file",
input: { path: "/foo" },
};
const result = renderEvent(e, opts);
expect(result?.stdout).toContain("[tool] read_file");
expect(result?.stdout).toContain('"/foo"');
});
it("renders tool-output data as stdout", () => {
const e: AgentEvent = {
type: "tool-output",
conversationId: "c",
turnId: "t",
toolCallId: "tc1",
data: "some output",
stream: "stdout",
};
expect(renderEvent(e, opts)).toEqual({ stdout: "some output" });
});
it("renders tool-result without error", () => {
const e: AgentEvent = {
type: "tool-result",
conversationId: "c",
turnId: "t",
stepId: "t1#0" as StepId,
toolCallId: "tc1",
toolName: "read_file",
content: "file contents",
isError: false,
};
expect(renderEvent(e, opts)).toEqual({
stdout: "[tool:read_file] file contents\n",
});
});
it("renders tool-result with error flag", () => {
const e: AgentEvent = {
type: "tool-result",
conversationId: "c",
turnId: "t",
stepId: "t1#0" as StepId,
toolCallId: "tc1",
toolName: "read_file",
content: "not found",
isError: true,
};
expect(renderEvent(e, opts)).toEqual({
stdout: "[tool:read_file] ERROR not found\n",
});
});
it("renders usage event", () => {
const e: AgentEvent = {
type: "usage",
conversationId: "c",
turnId: "t",
usage: { inputTokens: 100, outputTokens: 50 },
};
expect(renderEvent(e, opts)).toEqual({
stdout: "\n[usage] in=100 out=50\n",
});
});
it("renders error event to stderr", () => {
const e: AgentEvent = {
type: "error",
conversationId: "c",
turnId: "t",
message: "something went wrong",
};
expect(renderEvent(e, opts)).toEqual({
stderr: "[error] something went wrong\n",
});
});
it("returns undefined for status", () => {
const e: AgentEvent = {
type: "status",
conversationId: "c",
status: "running",
};
expect(renderEvent(e, opts)).toBeUndefined();
});
it("returns undefined for turn-start", () => {
const e: AgentEvent = { type: "turn-start", conversationId: "c", turnId: "t" };
expect(renderEvent(e, opts)).toBeUndefined();
});
it("returns undefined for turn-sealed", () => {
const e: AgentEvent = { type: "turn-sealed", conversationId: "c", turnId: "t" };
expect(renderEvent(e, opts)).toBeUndefined();
});
it("returns undefined for done", () => {
const e: AgentEvent = {
type: "done",
conversationId: "c",
turnId: "t",
reason: "completed",
};
expect(renderEvent(e, opts)).toBeUndefined();
});
});
describe("extractLastText", () => {
it("accumulates text deltas", () => {
const events: AgentEvent[] = [
{ type: "text-delta", conversationId: "c", turnId: "t", delta: "Hello" },
{ type: "text-delta", conversationId: "c", turnId: "t", delta: ", " },
{ type: "text-delta", conversationId: "c", turnId: "t", delta: "world" },
{ type: "done", conversationId: "c", turnId: "t", reason: "completed" },
];
expect(extractLastText(events)).toBe("Hello, world");
});
it("returns empty string when no text-delta events", () => {
const events: AgentEvent[] = [
{ type: "turn-start", conversationId: "c", turnId: "t" },
{ type: "done", conversationId: "c", turnId: "t", reason: "completed" },
];
expect(extractLastText(events)).toBe("");
});
it("ignores non-text-delta events but keeps deltas interleaved among them", () => {
const events: AgentEvent[] = [
{ type: "text-delta", conversationId: "c", turnId: "t", delta: "a" },
{
type: "tool-call",
conversationId: "c",
turnId: "t",
stepId: "t1#0" as StepId,
toolCallId: "tc1",
toolName: "read_file",
input: {},
},
{ type: "text-delta", conversationId: "c", turnId: "t", delta: "b" },
];
expect(extractLastText(events)).toBe("ab");
});
it("returns empty string for an empty event list", () => {
expect(extractLastText([])).toBe("");
});
});
describe("formatRelativeTime", () => {
const now = 1_000_000_000_000; // fixed clock
it("returns 'just now' for under a minute", () => {
expect(formatRelativeTime(now - 30_000, now)).toBe("just now");
});
it("returns minutes ago", () => {
expect(formatRelativeTime(now - 5 * 60_000, now)).toBe("5m ago");
});
it("returns hours ago", () => {
expect(formatRelativeTime(now - 3 * 3_600_000, now)).toBe("3h ago");
});
it("returns days ago", () => {
expect(formatRelativeTime(now - 2 * 86_400_000, now)).toBe("2d ago");
});
it("returns a date past a week", () => {
// 2001-09-09T01:46:40.000Z
expect(formatRelativeTime(now - 8 * 86_400_000, now)).toBe("2001-09-01");
});
});
describe("formatConversationList", () => {
const now = 1_000_000_000_000;
const conv = (id: string, title: string, ageMs: number): ConversationMeta => ({
id,
title,
createdAt: now - ageMs - 1000,
lastActivityAt: now - ageMs,
status: "idle",
});
it("returns empty string for an empty list", () => {
expect(formatConversationList([], now)).toBe("");
});
it("formats one row with short id, title, relative time", () => {
const list = [conv("abcdef1234567890", "hello world", 5 * 60_000)];
expect(formatConversationList(list, now)).toBe("abcdef12 | hello world | 5m ago");
});
it("formats multiple rows one per line", () => {
const list = [
conv("abcdef1234567890", "first", 5 * 60_000),
conv("0123456789abcdef", "second", 3 * 3_600_000),
];
expect(formatConversationList(list, now)).toBe(
"abcdef12 | first | 5m ago\n01234567 | second | 3h ago",
);
});
});
|
