mirror of
https://github.com/overleaf/overleaf.git
synced 2024-09-16 02:52:31 -04:00
294088fb27
* make the content cache manager tests configurable * extend stream content in unit tests * [ContentCacheManagerTests] prepare for full object caching * filesystem stream for pdfjs * working?? * cleaning up * handle overflow * [misc] install pdfjs-dist * [misc] move pdfjs code into app/lib/ and scripts/, also use CamelCase * [misc] abstract the file loading and parsing of xRef tables into helper * [misc] pdfjsTests: add snapshot based tests for the Xref table parser * [misc] FSStream: throw proper error and drop commented code * [misc] FSStream: integrate throwing of MissingDataException into getter * [misc] pdfjs: fix eslint errors * [misc] pdfjs: run format_fix * [misc] pdfjs: allocate very small non empty dummy buffers explicitly * [misc] install @overleaf/o-error * [ContentCacheManager] use PDF.js Xref table instead of stream detection Co-Authored-By: Brian Gough <brian.gough@overleaf.com> * [pdfjs] parseXrefTable: handle empty PDF files gracefully Co-authored-by: Brian Gough <brian.gough@overleaf.com>
78 lines
2.1 KiB
JavaScript
78 lines
2.1 KiB
JavaScript
const fs = require('fs')
|
|
const Path = require('path')
|
|
const { expect } = require('chai')
|
|
const { parseXrefTable } = require('../../../app/lib/pdfjs/parseXrefTable')
|
|
const PATH_EXAMPLES = 'test/acceptance/fixtures/examples/'
|
|
const PATH_SNAPSHOTS = 'test/unit/lib/snapshots/'
|
|
const EXAMPLES = fs.readdirSync(PATH_EXAMPLES)
|
|
|
|
function snapshotPath(example) {
|
|
return Path.join(PATH_SNAPSHOTS, example, 'XrefTable.json')
|
|
}
|
|
|
|
function pdfPath(example) {
|
|
return Path.join(PATH_EXAMPLES, example, 'output.pdf')
|
|
}
|
|
|
|
async function loadContext(example) {
|
|
const size = (await fs.promises.stat(pdfPath(example))).size
|
|
|
|
let blob
|
|
try {
|
|
blob = await fs.promises.readFile(snapshotPath(example))
|
|
} catch (e) {
|
|
if (e.code !== 'ENOENT') {
|
|
throw e
|
|
}
|
|
}
|
|
const snapshot = blob ? JSON.parse(blob) : null
|
|
return {
|
|
size,
|
|
snapshot
|
|
}
|
|
}
|
|
|
|
async function backFillSnapshot(example, size) {
|
|
const table = await parseXrefTable(pdfPath(example), size)
|
|
await fs.promises.mkdir(Path.dirname(snapshotPath(example)), {
|
|
recursive: true
|
|
})
|
|
await fs.promises.writeFile(
|
|
snapshotPath(example),
|
|
JSON.stringify(table, null, 2)
|
|
)
|
|
return table
|
|
}
|
|
|
|
describe('pdfjs', function () {
|
|
describe('when the pdf is an empty file', function () {
|
|
it('should yield no entries', async function () {
|
|
const path = 'does/not/matter.pdf'
|
|
const table = await parseXrefTable(path, 0)
|
|
expect(table).to.deep.equal([])
|
|
})
|
|
})
|
|
|
|
for (const example of EXAMPLES) {
|
|
describe(example, function () {
|
|
let size, snapshot
|
|
before('load snapshot', async function () {
|
|
const ctx = await loadContext(example)
|
|
size = ctx.size
|
|
snapshot = ctx.snapshot
|
|
})
|
|
|
|
before('back fill new snapshot', async function () {
|
|
if (snapshot === null) {
|
|
console.error('back filling snapshot for', example)
|
|
snapshot = await backFillSnapshot(example, size)
|
|
}
|
|
})
|
|
|
|
it('should produce the expected xRef table', async function () {
|
|
const table = await parseXrefTable(pdfPath(example), size)
|
|
expect(table).to.deep.equal(snapshot)
|
|
})
|
|
})
|
|
}
|
|
})
|