Any technical reason for: ``` if (isNode) { tfbPath = path.join(__dirname, '/fixtures/15mb.random') testfileBig = fs.createReadStream(tfbPath, { bufferSize: 128 }) testfile = loadFixture(__dirname, '/fixtures/testfile.txt') } else { testfile = loadFixture(__dirname, 'fixtures/testfile.txt') } ``` Found in https://github.com/ipfs/js-ipfs-api/blob/master/test/get.spec.js