import { describe, expect, it, vi } from "vitest"; import { fixPath } from "./os-jank.ts"; describe("fixPath", () => {  it("hydrates PATH on linux using the resolved login shell", () => {    const env: NodeJS.ProcessEnv = {      SHELL: "/bin/zsh",      PATH: "/Users/test/.local/bin:/usr/bin",    };    const readPath = vi.fn(() => "/opt/homebrew/bin:/usr/bin");     fixPath({      env,      platform: "linux",      readPath,    });     expect(readPath).toHaveBeenCalledWith("/bin/zsh");    expect(env.PATH).toBe("/opt/homebrew/bin:/usr/bin:/Users/test/.local/bin");  });   it("falls back to launchctl PATH on macOS when shell probing fails", () => {    const env: NodeJS.ProcessEnv = {      SHELL: "/opt/homebrew/bin/nu",      PATH: "/usr/bin",    };    const readPath = vi      .fn()      .mockImplementationOnce(() => {        throw new Error("unknown flag");      })      .mockImplementationOnce(() => undefined);    const readLaunchctlPath = vi.fn(() => "/opt/homebrew/bin:/usr/bin");    const logWarning = vi.fn();     fixPath({      env,      platform: "darwin",      readPath,      readLaunchctlPath,      userShell: "/bin/zsh",      logWarning,    });     expect(readPath).toHaveBeenNthCalledWith(1, "/opt/homebrew/bin/nu");    expect(readPath).toHaveBeenNthCalledWith(2, "/bin/zsh");    expect(readLaunchctlPath).toHaveBeenCalledTimes(1);    expect(logWarning).toHaveBeenCalledWith(      "Failed to read PATH from login shell /opt/homebrew/bin/nu.",      expect.any(Error),    );    expect(env.PATH).toBe("/opt/homebrew/bin:/usr/bin");  });   it("repairs PATH on Windows by merging PowerShell PATH with inherited PATH", () => {    const env: NodeJS.ProcessEnv = {      PATH: "C:\\Windows\\System32",      APPDATA: "C:\\Users\\testuser\\AppData\\Roaming",      LOCALAPPDATA: "C:\\Users\\testuser\\AppData\\Local",      USERPROFILE: "C:\\Users\\testuser",    };    const readWindowsEnvironment = vi.fn(() => ({      PATH: "C:\\Custom\\Bin;C:\\Windows\\System32",    }));    const isWindowsCommandAvailable = vi.fn(() => true);     fixPath({      env,      platform: "win32",      readWindowsEnvironment,      isWindowsCommandAvailable,    });     expect(readWindowsEnvironment).toHaveBeenCalledWith(["PATH"], { loadProfile: false });    expect(env.PATH).toBe(      [        "C:\\Users\\testuser\\AppData\\Roaming\\npm",        "C:\\Users\\testuser\\AppData\\Local\\Programs\\nodejs",        "C:\\Users\\testuser\\AppData\\Local\\Volta\\bin",        "C:\\Users\\testuser\\AppData\\Local\\pnpm",        "C:\\Users\\testuser\\.bun\\bin",        "C:\\Users\\testuser\\scoop\\shims",        "C:\\Custom\\Bin",        "C:\\Windows\\System32",      ].join(";"),    );  });   it("applies profile-derived fnm variables on Windows when node is missing", () => {    const env: NodeJS.ProcessEnv = {      PATH: "C:\\Windows\\System32",      APPDATA: "C:\\Users\\testuser\\AppData\\Roaming",      LOCALAPPDATA: "C:\\Users\\testuser\\AppData\\Local",      USERPROFILE: "C:\\Users\\testuser",    };    const readWindowsEnvironment = vi.fn(      (_names: ReadonlyArray<string>, options?: { loadProfile?: boolean }) =>        options?.loadProfile          ? {              PATH: "C:\\Profile\\Node;C:\\Windows\\System32",              FNM_DIR: "C:\\Users\\testuser\\AppData\\Roaming\\fnm",              FNM_MULTISHELL_PATH: "C:\\Users\\testuser\\AppData\\Local\\fnm_multishells\\123",            }          : { PATH: "C:\\Custom\\Bin;C:\\Windows\\System32" },    );    const isWindowsCommandAvailable = vi.fn().mockReturnValueOnce(false).mockReturnValueOnce(true);     fixPath({      env,      platform: "win32",      readWindowsEnvironment,      isWindowsCommandAvailable,    });     expect(env.PATH).toBe(      [        "C:\\Profile\\Node",        "C:\\Windows\\System32",        "C:\\Users\\testuser\\AppData\\Roaming\\npm",        "C:\\Users\\testuser\\AppData\\Local\\Programs\\nodejs",        "C:\\Users\\testuser\\AppData\\Local\\Volta\\bin",        "C:\\Users\\testuser\\AppData\\Local\\pnpm",        "C:\\Users\\testuser\\.bun\\bin",        "C:\\Users\\testuser\\scoop\\shims",        "C:\\Custom\\Bin",      ].join(";"),    );    expect(env.FNM_DIR).toBe("C:\\Users\\testuser\\AppData\\Roaming\\fnm");    expect(env.FNM_MULTISHELL_PATH).toBe(      "C:\\Users\\testuser\\AppData\\Local\\fnm_multishells\\123",    );  });   it("preserves baseline PATH on Windows when the profile probe fails", () => {    const env: NodeJS.ProcessEnv = {      PATH: "C:\\Windows\\System32",      APPDATA: "C:\\Users\\testuser\\AppData\\Roaming",      USERPROFILE: "C:\\Users\\testuser",    };    const readWindowsEnvironment = vi.fn(      (_names: ReadonlyArray<string>, options?: { loadProfile?: boolean }) => {        if (options?.loadProfile) {          throw new Error("profile load failed");        }        return { PATH: "C:\\Custom\\Bin;C:\\Windows\\System32" };      },    );    const isWindowsCommandAvailable = vi.fn(() => false);     fixPath({      env,      platform: "win32",      readWindowsEnvironment,      isWindowsCommandAvailable,    });     expect(env.PATH).toBe(      [        "C:\\Users\\testuser\\AppData\\Roaming\\npm",        "C:\\Users\\testuser\\.bun\\bin",        "C:\\Users\\testuser\\scoop\\shims",        "C:\\Custom\\Bin",        "C:\\Windows\\System32",      ].join(";"),    );  });   it("does nothing on unsupported platforms", () => {    const env: NodeJS.ProcessEnv = {      SHELL: "C:/Program Files/Git/bin/bash.exe",      PATH: "C:\\Windows\\System32",    };    const readPath = vi.fn(() => "/usr/local/bin:/usr/bin");     fixPath({      env,      platform: "freebsd",      readPath,    });     expect(readPath).not.toHaveBeenCalled();    expect(env.PATH).toBe("C:\\Windows\\System32");  });});