import { jsx as _jsx } from "react/jsx-runtime";
/**
 * @license
 * Copyright 2025 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import { render } from '../../test-utils/render.js';
import { MemoryUsageDisplay } from './MemoryUsageDisplay.js';
import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
import process from 'node:process';
import { act } from 'react';
describe('MemoryUsageDisplay', () => {
    beforeEach(() => {
        vi.useFakeTimers();
        vi.clearAllMocks();
        // Mock process.memoryUsage
        vi.spyOn(process, 'memoryUsage').mockReturnValue({
            rss: 1024 * 1024 * 50, // 50MB
            heapTotal: 0,
            heapUsed: 0,
            external: 0,
            arrayBuffers: 0,
        });
    });
    afterEach(() => {
        vi.useRealTimers();
        vi.restoreAllMocks();
    });
    it('renders memory usage', async () => {
        const { lastFrame, waitUntilReady, unmount } = render(_jsx(MemoryUsageDisplay, {}));
        await waitUntilReady();
        expect(lastFrame()).toContain('50.0 MB');
        unmount();
    });
    it('updates memory usage over time', async () => {
        const { lastFrame, waitUntilReady, unmount } = render(_jsx(MemoryUsageDisplay, {}));
        await waitUntilReady();
        expect(lastFrame()).toContain('50.0 MB');
        vi.mocked(process.memoryUsage).mockReturnValue({
            rss: 1024 * 1024 * 100, // 100MB
            heapTotal: 0,
            heapUsed: 0,
            external: 0,
            arrayBuffers: 0,
        });
        await act(async () => {
            vi.advanceTimersByTime(2000);
        });
        await waitUntilReady();
        expect(lastFrame()).toContain('100.0 MB');
        unmount();
    });
});
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