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70 lines
2.5 KiB
TypeScript
70 lines
2.5 KiB
TypeScript
// ========= Copyright 2025-2026 @ Eigent.ai All Rights Reserved. =========
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ========= Copyright 2025-2026 @ Eigent.ai All Rights Reserved. =========
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import {
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decideFilePreview,
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FILE_PREVIEW_LIMITS,
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} from '@/shared/filePreviewContract';
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import { describe, expect, it } from 'vitest';
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describe('file preview policy', () => {
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it('always routes CSV through the bounded reader', () => {
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expect(decideFilePreview('csv', { size: 2_000_000_000 })).toMatchObject({
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mode: 'bounded-csv',
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limit: FILE_PREVIEW_LIMITS.csvScanBytes,
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});
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});
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it('blocks PDFs whose size cannot be verified', () => {
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expect(decideFilePreview('pdf', { size: null })).toMatchObject({
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mode: 'blocked',
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reason: 'metadata-unavailable',
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});
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});
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it('blocks PDFs above the hard limit and ranges smaller PDFs', () => {
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expect(
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decideFilePreview('application/pdf', {
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size: FILE_PREVIEW_LIMITS.pdfBytes + 1,
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})
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).toMatchObject({ mode: 'blocked', reason: 'too-large' });
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expect(
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decideFilePreview('pdf', { size: FILE_PREVIEW_LIMITS.pdfBytes })
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).toMatchObject({ mode: 'range-pdf' });
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});
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it('blocks PDF embedding when byte ranges are explicitly unsupported', () => {
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expect(
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decideFilePreview('pdf', { size: 1024, supportsRanges: false })
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).toMatchObject({ mode: 'blocked', reason: 'unsupported' });
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});
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it('uses a bounded text reader for large markdown', () => {
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expect(
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decideFilePreview('md', { size: FILE_PREVIEW_LIMITS.textBytes + 1 })
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).toMatchObject({ mode: 'bounded-text' });
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});
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it('never fully decodes an unknown file in the renderer', () => {
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expect(decideFilePreview('custom-data', { size: 20 })).toMatchObject({
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mode: 'bounded-text',
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limit: FILE_PREVIEW_LIMITS.textBytes,
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});
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expect(
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decideFilePreview('custom-data', {
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size: FILE_PREVIEW_LIMITS.defaultBytes,
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})
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).toMatchObject({ mode: 'bounded-text' });
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});
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});
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