import { describe, expect, it } from 'vitest';
import { buildPickedUploadWarning } from '@/utils/upload/buildPickedUploadWarning';

describe('buildPickedUploadWarning', () => {
    it('returns null when nothing was skipped', () => {
        expect(
            buildPickedUploadWarning(
                { nonImageCount: 0, oversizedImagesCount: 0, queueOmittedImagesCount: 0 },
                5
            )
        ).toBeNull();
    });

    it('joins skip reasons into one message', () => {
        const message = buildPickedUploadWarning(
            { nonImageCount: 1, oversizedImagesCount: 2, queueOmittedImagesCount: 3 },
            4
        );

        expect(message).toContain('1 non-image');
        expect(message).toContain('2 image(s) exceeded');
        expect(message).toContain('first 4 valid images');
    });
});