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'use strict'; const common = require('../common'); const zlib = require('zlib'); const { inspect, promisify } = require('util'); const assert = require('assert'); const emptyBuffer = Buffer.alloc(0); (async function() { for (const [ compress, decompress, method ] of [ [ zlib.deflateRawSync, zlib.inflateRawSync, 'raw sync' ], [ zlib.deflateSync, zlib.inflateSync, 'deflate sync' ], [ zlib.gzipSync, zlib.gunzipSync, 'gzip sync' ], [ zlib.brotliCompressSync, zlib.brotliDecompressSync, 'br sync' ], [ promisify(zlib.deflateRaw), promisify(zlib.inflateRaw), 'raw' ], [ promisify(zlib.deflate), promisify(zlib.inflate), 'deflate' ], [ promisify(zlib.gzip), promisify(zlib.gunzip), 'gzip' ], [ promisify(zlib.brotliCompress), promisify(zlib.brotliDecompress), 'br' ], ]) { const compressed = await compress(emptyBuffer); const decompressed = await decompress(compressed); assert.deepStrictEqual( emptyBuffer, decompressed, `Expected ${inspect(compressed)} to match ${inspect(decompressed)} ` + `to match for ${method}`); } })().then(common.mustCall());