test(cli): add program help coverage for root output and version fast-path

src/cli/program/help.test.ts

@@ -0,0 +1,125 @@
+import { Command } from "commander";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+import type { ProgramContext } from "./context.js";
+
+const hasEmittedCliBannerMock = vi.fn(() => false);
+const formatCliBannerLineMock = vi.fn(() => "BANNER-LINE");
+const formatDocsLinkMock = vi.fn((_path: string, full: string) => `https://${full}`);
+
+vi.mock("../../terminal/links.js", () => ({
+  formatDocsLink: formatDocsLinkMock,
+}));
+
+vi.mock("../../terminal/theme.js", () => ({
+  isRich: () => false,
+  theme: {
+    heading: (s: string) => s,
+    muted: (s: string) => s,
+    option: (s: string) => s,
+    command: (s: string) => s,
+    error: (s: string) => s,
+  },
+}));
+
+vi.mock("../banner.js", () => ({
+  formatCliBannerLine: formatCliBannerLineMock,
+  hasEmittedCliBanner: hasEmittedCliBannerMock,
+}));
+
+vi.mock("../cli-name.js", () => ({
+  resolveCliName: () => "openclaw",
+  replaceCliName: (cmd: string) => cmd,
+}));
+
+vi.mock("./command-registry.js", () => ({
+  getCoreCliCommandsWithSubcommands: () => ["models", "message"],
+}));
+
+vi.mock("./register.subclis.js", () => ({
+  getSubCliCommandsWithSubcommands: () => ["gateway"],
+}));
+
+const { configureProgramHelp } = await import("./help.js");
+
+const testProgramContext: ProgramContext = {
+  programVersion: "9.9.9-test",
+  channelOptions: ["telegram"],
+  messageChannelOptions: "telegram",
+  agentChannelOptions: "last|telegram",
+};
+
+describe("configureProgramHelp", () => {
+  let originalArgv: string[];
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+    originalArgv = [...process.argv];
+    hasEmittedCliBannerMock.mockReturnValue(false);
+  });
+
+  afterEach(() => {
+    process.argv = originalArgv;
+  });
+
+  function makeProgramWithCommands() {
+    const program = new Command();
+    program.command("models").description("models");
+    program.command("status").description("status");
+    return program;
+  }
+
+  function captureHelpOutput(program: Command): string {
+    let output = "";
+    const writeSpy = vi.spyOn(process.stdout, "write").mockImplementation(((
+      chunk: string | Uint8Array,
+    ) => {
+      output += String(chunk);
+      return true;
+    }) as typeof process.stdout.write);
+    try {
+      program.outputHelp();
+      return output;
+    } finally {
+      writeSpy.mockRestore();
+    }
+  }
+
+  it("adds root help hint and marks commands with subcommands", () => {
+    process.argv = ["node", "openclaw", "--help"];
+    const program = makeProgramWithCommands();
+    configureProgramHelp(program, testProgramContext);
+
+    const help = captureHelpOutput(program);
+    expect(help).toContain("Hint: commands suffixed with * have subcommands");
+    expect(help).toContain("models *");
+    expect(help).toContain("status");
+    expect(help).not.toContain("status *");
+  });
+
+  it("includes banner and docs/examples in root help output", () => {
+    process.argv = ["node", "openclaw", "--help"];
+    const program = makeProgramWithCommands();
+    configureProgramHelp(program, testProgramContext);
+
+    const help = captureHelpOutput(program);
+    expect(help).toContain("BANNER-LINE");
+    expect(help).toContain("Examples:");
+    expect(help).toContain("https://docs.openclaw.ai/cli");
+  });
+
+  it("prints version and exits immediately when version flags are present", () => {
+    process.argv = ["node", "openclaw", "--version"];
+    const logSpy = vi.spyOn(console, "log").mockImplementation(() => {});
+    const exitSpy = vi.spyOn(process, "exit").mockImplementation(((code?: number) => {
+      throw new Error(`exit:${code ?? ""}`);
+    }) as typeof process.exit);
+
+    const program = makeProgramWithCommands();
+    expect(() => configureProgramHelp(program, testProgramContext)).toThrow("exit:0");
+    expect(logSpy).toHaveBeenCalledWith("9.9.9-test");
+    expect(exitSpy).toHaveBeenCalledWith(0);
+
+    logSpy.mockRestore();
+    exitSpy.mockRestore();
+  });
+});