From aa21d98300a79cb27ed501a5aa0ca882299acc88 Mon Sep 17 00:00:00 2001
From: Nick Gheorghita <nickgheorghita@gmail.com>
Date: Thu, 14 Mar 2019 14:56:28 +0100
Subject: [PATCH] Implement eth_submitWork

---
 docs/web3.eth.rst                         | 14 ++++++++++++++
 tests/integration/test_ethereum_tester.py |  1 +
 web3/_utils/module_testing/eth_module.py  |  7 +++++++
 web3/_utils/rpc_abi.py                    |  3 ++-
 web3/eth.py                               |  5 +++++
 web3/middleware/pythonic.py               |  1 -
 6 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/docs/web3.eth.rst b/docs/web3.eth.rst
index 873090aa47..f36780da58 100644
--- a/docs/web3.eth.rst
+++ b/docs/web3.eth.rst
@@ -825,6 +825,20 @@ with the filtering API.
        True
 
 
+.. py:method:: Eth.submitWork(nonce, pow_hash, mix_digest)
+
+    * Delegates to ``eth_submitWork`` RPC Method.
+
+    .. code-block:: python
+      
+       >>> web3.eth.submitWork(
+               1,
+               '0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef',
+               '0xD1FE5700000000000000000000000000D1FE5700000000000000000000000000',
+           )
+       True
+  
+
 Contracts
 ---------
 
diff --git a/tests/integration/test_ethereum_tester.py b/tests/integration/test_ethereum_tester.py
index d3e0c3fc82..b18313a9b2 100644
--- a/tests/integration/test_ethereum_tester.py
+++ b/tests/integration/test_ethereum_tester.py
@@ -217,6 +217,7 @@ def func_wrapper(self, eth_tester, *args, **kwargs):
 class TestEthereumTesterEthModule(EthModuleTest):
     test_eth_sign = not_implemented(EthModuleTest.test_eth_sign, ValueError)
     test_eth_submitHashrate = not_implemented(EthModuleTest.test_eth_submitHashrate, ValueError)
+    test_eth_submitWork = not_implemented(EthModuleTest.test_eth_submitWork, ValueError)
 
     @disable_auto_mine
     def test_eth_getTransactionReceipt_unmined(self, eth_tester, web3, unlocked_account):
diff --git a/web3/_utils/module_testing/eth_module.py b/web3/_utils/module_testing/eth_module.py
index d024c4d180..9e02f7144b 100644
--- a/web3/_utils/module_testing/eth_module.py
+++ b/web3/_utils/module_testing/eth_module.py
@@ -816,3 +816,10 @@ def test_eth_submitHashrate(self, web3):
         node_id = '59daa26581d0acd1fce254fb7e85952f4c09d0915afd33d3886cd914bc7d283c'
         result = web3.eth.submitHashrate(5000, node_id)
         assert result is True
+
+    def test_eth_submitWork(self, web3):
+        nonce = 1
+        pow_hash = '0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef'
+        mix_digest = '0xD1FE5700000000000000000000000000D1FE5700000000000000000000000000'
+        result = web3.eth.submitWork(nonce, pow_hash, mix_digest)
+        assert result is False
diff --git a/web3/_utils/rpc_abi.py b/web3/_utils/rpc_abi.py
index aa31a91803..5774b96ca3 100644
--- a/web3/_utils/rpc_abi.py
+++ b/web3/_utils/rpc_abi.py
@@ -51,7 +51,8 @@
     'eth_sendRawTransaction': ['bytes'],
     'eth_sendTransaction': TRANSACTION_PARAMS_ABIS,
     'eth_sign': ['address', 'bytes'],
-    'eth_submitHashrate': ['uint', None],
+    'eth_submitHashrate': ['bytes32', 'bytes32'],
+    'eth_submitWork': ['bytes8', 'bytes32', 'bytes32'],
     # personal
     'personal_sendTransaction': TRANSACTION_PARAMS_ABIS,
     'personal_lockAccount': ['address'],
diff --git a/web3/eth.py b/web3/eth.py
index 3708959a05..502a92d4fd 100644
--- a/web3/eth.py
+++ b/web3/eth.py
@@ -395,6 +395,11 @@ def submitHashrate(self, hashrate, node_id):
             "eth_submitHashrate", [hashrate, node_id],
         )
 
+    def submitWork(self, nonce, pow_hash, mix_digest):
+        return self.web3.manager.request_blocking(
+            "eth_submitWork", [nonce, pow_hash, mix_digest],
+        )
+
     def uninstallFilter(self, filter_id):
         return self.web3.manager.request_blocking(
             "eth_uninstallFilter", [filter_id],
diff --git a/web3/middleware/pythonic.py b/web3/middleware/pythonic.py
index b7df3724f9..726d206959 100644
--- a/web3/middleware/pythonic.py
+++ b/web3/middleware/pythonic.py
@@ -287,7 +287,6 @@ def to_hexbytes(num_bytes, val, variable_length=False):
             (estimate_gas_with_block_id, is_length(2)),
         )),
         'eth_sendTransaction': apply_formatter_at_index(transaction_param_formatter, 0),
-        'eth_submitHashrate': apply_formatter_at_index(hexstr_if_str(to_hex), 1),
         # personal
         'personal_importRawKey': apply_formatter_at_index(
             compose(remove_0x_prefix, hexstr_if_str(to_hex)),