Catch DeprecationWarning in test

Author: kclowes

tests/core/contracts/test_contract_deployment.py

@@ -41,16 +41,20 @@ def test_contract_deployment_with_constructor_without_args(web3,
 def test_contract_deployment_with_constructor_with_arguments(web3,
                                                              WithConstructorArgumentsContract,
                                                              WITH_CONSTRUCTOR_ARGUMENTS_RUNTIME):
-    deploy_txn = WithConstructorArgumentsContract.constructor(1234, 'abcd').transact()
+    with pytest.warns(
+        DeprecationWarning,
+        match='in v6 it will be invalid to pass a hexstring without the "0x" prefix'
+    ):
+        deploy_txn = WithConstructorArgumentsContract.constructor(1234, 'abcd').transact()
 
-    txn_receipt = web3.eth.waitForTransactionReceipt(deploy_txn)
-    assert txn_receipt is not None
+        txn_receipt = web3.eth.waitForTransactionReceipt(deploy_txn)
+        assert txn_receipt is not None
 
-    assert txn_receipt['contractAddress']
-    contract_address = txn_receipt['contractAddress']
+        assert txn_receipt['contractAddress']
+        contract_address = txn_receipt['contractAddress']
 
-    blockchain_code = web3.eth.getCode(contract_address)
-    assert blockchain_code == decode_hex(WITH_CONSTRUCTOR_ARGUMENTS_RUNTIME)
+        blockchain_code = web3.eth.getCode(contract_address)
+        assert blockchain_code == decode_hex(WITH_CONSTRUCTOR_ARGUMENTS_RUNTIME)
 
 
 def test_contract_deployment_with_constructor_with_address_argument(web3,