# Pastebin szu7arht
core
    --both
      .block
Swarm listening on /ip4/127.0.0.1/tcp/40521
        callback API
          1) .put
          2) .put error with array of blocks
          3) block.get
          4) block.stat


  0 passing (4s)
  4 failing

  1) core --both .block callback API .put:
     TypeError: Cannot read property 'toString' of undefined
      at Bitwap._tryPutBlock (node_modules/ipfs-bitswap/lib/index.js:148:47)
      at Bitwap.hasBlock (node_modules/ipfs-bitswap/lib/index.js:336:12)
      at BlockService.addBlock (node_modules/ipfs-block-service/lib/index.js:44:23)
      at Object.get.put (src/core/ipfs/block.js:9:20)
      at Context.<anonymous> (/home/n4th4n/tests/blocksv2/interface-ipfs-core/lib/block.js:37:20)

  2) core --both .block callback API .put error with array of blocks:
     TypeError: Cannot read property 'toString' of undefined
      at Bitwap._tryPutBlock (node_modules/ipfs-bitswap/lib/index.js:148:47)
      at Bitwap.hasBlock (node_modules/ipfs-bitswap/lib/index.js:336:12)
      at BlockService.addBlock (node_modules/ipfs-block-service/lib/index.js:44:23)
      at Object.get.put (src/core/ipfs/block.js:9:20)
      at Context.<anonymous> (/home/n4th4n/tests/blocksv2/interface-ipfs-core/lib/block.js:47:20)

  3) core --both .block callback API block.get:
     Error: must be passed a buffer
      at Object.toB58String (node_modules/multihashes/lib/index.js:21:11)
      at Bitwap.getBlock (node_modules/ipfs-bitswap/lib/index.js:184:21)
      at BlockService.getBlock (node_modules/ipfs-block-service/lib/index.js:71:23)
      at Object.get (src/core/ipfs/block.js:6:20)
      at Context.<anonymous> (/home/n4th4n/tests/blocksv2/interface-ipfs-core/lib/block.js:55:20)

  4) core --both .block callback API block.stat:
     Error: must be passed a buffer
      at Object.toB58String (node_modules/multihashes/lib/index.js:21:11)
      at Bitwap.getBlock (node_modules/ipfs-bitswap/lib/index.js:184:21)
      at BlockService.getBlock (node_modules/ipfs-block-service/lib/index.js:71:23)
      at Object.get.put.del.stat.self._blockS.getBlock [as stat] (src/core/ipfs/block.js:15:20)
      at Context.<anonymous> (/home/n4th4n/tests/blocksv2/interface-ipfs-core/lib/block.js:72:20)