/**
 * @license
 * Copyright 2025 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import { describe, it, expect, vi, beforeEach } from 'vitest';
import { getStartupWarnings } from './startupWarnings.js';
import * as fs from 'node:fs/promises';
import { getErrorMessage } from 'sixth-cli-core';
vi.mock('node:fs/promises', { spy: true });
vi.mock('sixth-cli-core', async (importOriginal) => {
    const actual = await importOriginal();
    return {
        ...actual,
        getErrorMessage: vi.fn(),
    };
});
describe('startupWarnings', () => {
    beforeEach(() => {
        vi.resetAllMocks();
    });
    it('should return warnings from the file and delete it', async () => {
        const mockWarnings = 'Warning 1\nWarning 2';
        vi.mocked(fs.access).mockResolvedValue();
        vi.mocked(fs.readFile).mockResolvedValue(mockWarnings);
        vi.mocked(fs.unlink).mockResolvedValue();
        const warnings = await getStartupWarnings();
        expect(fs.access).toHaveBeenCalled();
        expect(fs.readFile).toHaveBeenCalled();
        expect(fs.unlink).toHaveBeenCalled();
        expect(warnings).toEqual(['Warning 1', 'Warning 2']);
    });
    it('should return an empty array if the file does not exist', async () => {
        const error = new Error('File not found');
        error.code = 'ENOENT';
        vi.mocked(fs.access).mockRejectedValue(error);
        const warnings = await getStartupWarnings();
        expect(warnings).toEqual([]);
    });
    it('should return an error message if reading the file fails', async () => {
        const error = new Error('Permission denied');
        vi.mocked(fs.access).mockRejectedValue(error);
        vi.mocked(getErrorMessage).mockReturnValue('Permission denied');
        const warnings = await getStartupWarnings();
        expect(warnings).toEqual([
            'Error checking/reading warnings file: Permission denied',
        ]);
    });
    it('should return a warning if deleting the file fails', async () => {
        const mockWarnings = 'Warning 1';
        vi.mocked(fs.access).mockResolvedValue();
        vi.mocked(fs.readFile).mockResolvedValue(mockWarnings);
        vi.mocked(fs.unlink).mockRejectedValue(new Error('Permission denied'));
        const warnings = await getStartupWarnings();
        expect(warnings).toEqual([
            'Warning 1',
            'Warning: Could not delete temporary warnings file.',
        ]);
    });
});
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