import { describe, expect, it } from 'vitest';
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import { canReplaceWithTemplate, templateFileError } from './templateSelection';
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const file = { fileId: 'source', name: '模板.docx', fileSize: 1024, url: '/source', thumbUrl: '' };
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const props = { accept: '*', fileSize: 10, sizeUnit: 'MB' };
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describe('template selection constraints', () => {
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it('requires add for an empty field, replace for an existing file, and remove when shrinking multiple files', () => {
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const access = { status: 'ready' as const, actions: { ADD: true, REPLACE: false, REMOVE: false } };
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expect(canReplaceWithTemplate(access, 0)).toBe(true);
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expect(canReplaceWithTemplate(access, 1)).toBe(false);
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access.actions.REPLACE = true;
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expect(canReplaceWithTemplate(access, 1)).toBe(true);
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expect(canReplaceWithTemplate(access, 2)).toBe(false);
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access.actions.REMOVE = true;
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expect(canReplaceWithTemplate(access, 2)).toBe(true);
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expect(canReplaceWithTemplate({ status: 'loading' }, 0)).toBe(false);
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});
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it('applies the upload type and strict size limits', () => {
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expect(templateFileError(file, props)).toBe('');
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expect(templateFileError(file, { ...props, accept: '.pdf' })).toContain('类型');
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expect(templateFileError(file, { ...props, accept: '.DOCX' })).toBe('');
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expect(templateFileError(file, { ...props, sizeUnit: 'KB', fileSize: 1 })).toContain('小于');
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expect(templateFileError({ ...file, fileSize: 'broken' }, props)).toContain('无效');
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expect(templateFileError({ ...file, name: 'a.pdf' }, props)).toContain('DOCX');
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});
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});
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