salix-front/test/vitest/__tests__/composables/downloadFile.spec.js

import { vi, describe, expect, it, beforeAll, afterAll } from 'vitest';
import { axios } from 'app/test/vitest/helper';
import { downloadFile } from 'src/composables/downloadFile';
import { useSession } from 'src/composables/useSession';
const session = useSession();
const token = session.getToken();

describe('downloadFile', () => {
    const baseUrl = 'http://localhost:9000';
    let defaulCreateObjectURL;

    beforeAll(() => {
        defaulCreateObjectURL = window.URL.createObjectURL;
        window.URL.createObjectURL = vi.fn(() => 'blob:http://localhost:9000/blob-id');
    });

    afterAll(() => (window.URL.createObjectURL = defaulCreateObjectURL));

    it('should open a new window to download the file', async () => {
        const res = {
            data: new Blob(['file content'], { type: 'application/octet-stream' }),
            headers: { 'content-disposition': 'attachment; filename="test-file.txt"' },
        };
        vi.spyOn(axios, 'get').mockImplementation((url) => {
            if (url == 'Urls/getUrl') return Promise.resolve({ data: baseUrl });
            else if (url.includes('downloadFile')) return Promise.resolve(res);
        });

        await downloadFile(1);

        expect(axios.get).toHaveBeenCalledWith(
            `${baseUrl}/api/dms/1/downloadFile?access_token=${token}`,
            { responseType: 'blob' }
        );
    });
});