handle correctly empty transactions for Callisto

[ayrat555]

fixes

2019-06-14T07:30:01.432 fetcher=block_uncle count=10 [error] Task #PID<0.30783.673> started from Indexer.Fetcher.UncleBlock terminating
** (FunctionClauseError) no function clause matching in EthereumJSONRPC.Block.elixir_to_transactions/1
    (ethereum_jsonrpc) lib/ethereum_jsonrpc/block.ex:320: EthereumJSONRPC.Block.elixir_to_transactions(%{“difficulty” => 13003609512856, “extraData” => “0x636c6f706f6f6c2e6f7267”, “gasLimit” => 8000000, “gasUsed” => 42000, “hash” => “0xd2ae784fa5f1dcb21336282292b027e273bf7f85e123f0020819a193a2b40a4e”, “logsBloom” => “0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000”, “miner” => “0x5f7661e493d4f1a318c02e9383568597e8a09b5a”, “mixHash” => “0xa84341e505a8ea30480c464c4bc269227ac627c206b368dc0ba55308f793c6b2”, “nonce” => “0x0acbc0a002595676”, “number” => 1589332, “parentHash” => “0xbda1afe0c1458bdd76d5ce59401272a82eed761bb29a617919751f0d0ccfb402", “receiptsRoot” => “0xd95b673818fa493deec414e01e610d97ee287c9421c8eff4102b1647c1a184e4", “sha3Uncles” => “0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347", “size” => 530, “stateRoot” => “0xa24c57b061ba52e393316cc6ad8bced2ef1121ac05305d710df8df1e65e5e7d2”, “timestamp” => #DateTime<2018-12-08 10:10:36Z>, “totalDifficulty” => nil, “transactionsRoot” => “0x6365118787b0ff42b627a24c5ff2c4f8f3966e485106a5fe09c704cc3ee1ccd0”, “uncles” => []})

Changelog

• handle correctly empty transactions

[coveralls]

Pull Request Test Coverage Report for Build 05e6b352-ee77-4019-8638-6db2d532e5ed

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 80.715%

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Totals
Change from base Build 416fef69-f318-4769-a605-211baa53afeb:	0.0%
Covered Lines:	4922
Relevant Lines:	6098

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💛 - Coveralls