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import type { AgentEvent } from "@dispatch/transport-contract";
import type { StepId } from "@dispatch/wire";
import { describe, expect, it } from "vitest";
import { 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();
});
});
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