diff --git a/tests/eth_estimateGas/estimate-with-eip4844.io b/tests/eth_estimateGas/estimate-with-eip4844.io
index 021e906d3..0a76bbbf2 100644
--- a/tests/eth_estimateGas/estimate-with-eip4844.io
+++ b/tests/eth_estimateGas/estimate-with-eip4844.io
@@ -1,4 +1,4 @@
 // checks gas estimation for blob transactions (EIP-4844)
 // speconly: client response is only checked for schema validity.
->> {"jsonrpc":"2.0","id":1,"method":"eth_estimateGas","params":[{"blobVersionedHashes":["0x0100000000000000000000000000000000000000000000000000000000000000"],"from":"0x0c2c51a0990aee1d73c1228de158688341557508","maxFeePerBlobGas":"0x5","nonce":"0x0","to":"0x0100000000000000000000000000000000000000","type":"0x5","value":"0x1"}]}
+>> {"jsonrpc":"2.0","id":1,"method":"eth_estimateGas","params":[{"blobVersionedHashes":["0x0100000000000000000000000000000000000000000000000000000000000000"],"from":"0x0c2c51a0990aee1d73c1228de158688341557508","maxFeePerBlobGas":"0x5","nonce":"0x0","to":"0x0100000000000000000000000000000000000000","type":"0x3","value":"0x1"}]}
 << {"jsonrpc":"2.0","id":1,"result":"0x5208"}
diff --git a/tests/eth_getLogs/filter-error-blockHash-and-range.io b/tests/eth_getLogs/filter-error-blockHash-and-range.io
new file mode 100644
index 000000000..21e73a0b8
--- /dev/null
+++ b/tests/eth_getLogs/filter-error-blockHash-and-range.io
@@ -0,0 +1,3 @@
+// checks that an error is returned if `fromBlock`/`toBlock` are specified together with `blockHash`
+>> {"jsonrpc":"2.0","id":1,"method":"eth_getLogs","params":[{"blockHash":"0xfec6e8fb3735a6f24416b3b9887fd4cab5e474436ecd4ce701685487ee957416","fromBlock":"0x3","toBlock":"0x4"}]}
+<< {"jsonrpc":"2.0","id":1,"error":{"code":-32602,"message":"invalid argument 0: cannot specify both BlockHash and FromBlock/ToBlock, choose one or the other"}}
diff --git a/tests/eth_getLogs/filter-error-future-block-range.io b/tests/eth_getLogs/filter-error-future-block-range.io
new file mode 100644
index 000000000..110ec5817
--- /dev/null
+++ b/tests/eth_getLogs/filter-error-future-block-range.io
@@ -0,0 +1,3 @@
+// checks that an error is returned if `toBlock` is greater than the latest block
+>> {"jsonrpc":"2.0","id":1,"method":"eth_getLogs","params":[{"address":null,"fromBlock":"0x29","toBlock":"0x2f","topics":null}]}
+<< {"jsonrpc":"2.0","id":1,"error":{"code":-32602,"message":"block range extends beyond current head block"}}
diff --git a/tests/eth_getLogs/filter-error-reversed-block-range.io b/tests/eth_getLogs/filter-error-reversed-block-range.io
new file mode 100644
index 000000000..08b8991be
--- /dev/null
+++ b/tests/eth_getLogs/filter-error-reversed-block-range.io
@@ -0,0 +1,3 @@
+// checks that an error is returned if `fromBlock` is larger than `toBlock`
+>> {"jsonrpc":"2.0","id":1,"method":"eth_getLogs","params":[{"address":null,"fromBlock":"0x29","toBlock":"0x26","topics":null}]}
+<< {"jsonrpc":"2.0","id":1,"error":{"code":-32602,"message":"invalid block range params"}}
diff --git a/tests/eth_getLogs/filter-with-blockHash-and-topics.io b/tests/eth_getLogs/filter-with-blockHash-and-topics.io
new file mode 100644
index 000000000..7ea9f0c65
--- /dev/null
+++ b/tests/eth_getLogs/filter-with-blockHash-and-topics.io
@@ -0,0 +1,3 @@
+// queries for logs in a block, identified by blockHash
+>> {"jsonrpc":"2.0","id":1,"method":"eth_getLogs","params":[{"address":null,"blockHash":"0x29cc6f97784c864cbe29b3502934ad874f48ddc89580018f5a32e01652c88f0a","topics":[["0x00000000000000000000000000000000000000000000000000000000656d6974"],["0x4238ace0bf7e66fd40fea01bdf43f4f30423f48432efd0da3af5fcb17a977fd4"]]}]}
+<< {"jsonrpc":"2.0","id":1,"result":[{"address":"0x7dcd17433742f4c0ca53122ab541d0ba67fc27df","topics":["0x00000000000000000000000000000000000000000000000000000000656d6974","0x4238ace0bf7e66fd40fea01bdf43f4f30423f48432efd0da3af5fcb17a977fd4"],"data":"0x0000000000000000000000000000000000000000000000000000000000000001","blockNumber":"0x4","transactionHash":"0xf047c5133c96c405a79d01038b4ccf8208c03e296dd9f6bea083727c9513f805","transactionIndex":"0x0","blockHash":"0x29cc6f97784c864cbe29b3502934ad874f48ddc89580018f5a32e01652c88f0a","blockTimestamp":"0x28","logIndex":"0x0","removed":false}]}
diff --git a/tests/eth_getLogs/filter-with-blockHash.io b/tests/eth_getLogs/filter-with-blockHash.io
new file mode 100644
index 000000000..3d9eac8fc
--- /dev/null
+++ b/tests/eth_getLogs/filter-with-blockHash.io
@@ -0,0 +1,3 @@
+// queries for all logs of a block, identified by blockHash
+>> {"jsonrpc":"2.0","id":1,"method":"eth_getLogs","params":[{"address":null,"blockHash":"0x29cc6f97784c864cbe29b3502934ad874f48ddc89580018f5a32e01652c88f0a","topics":null}]}
+<< {"jsonrpc":"2.0","id":1,"result":[{"address":"0x7dcd17433742f4c0ca53122ab541d0ba67fc27df","topics":["0x00000000000000000000000000000000000000000000000000000000656d6974","0x4238ace0bf7e66fd40fea01bdf43f4f30423f48432efd0da3af5fcb17a977fd4"],"data":"0x0000000000000000000000000000000000000000000000000000000000000001","blockNumber":"0x4","transactionHash":"0xf047c5133c96c405a79d01038b4ccf8208c03e296dd9f6bea083727c9513f805","transactionIndex":"0x0","blockHash":"0x29cc6f97784c864cbe29b3502934ad874f48ddc89580018f5a32e01652c88f0a","blockTimestamp":"0x28","logIndex":"0x0","removed":false}]}
diff --git a/tests/eth_getStorageAt/get-storage-invalid-key-too-large.io b/tests/eth_getStorageAt/get-storage-invalid-key-too-large.io
index 5323b78e3..c0206b37b 100644
--- a/tests/eth_getStorageAt/get-storage-invalid-key-too-large.io
+++ b/tests/eth_getStorageAt/get-storage-invalid-key-too-large.io
@@ -1,3 +1,3 @@
 // requests an invalid storage key
 >> {"jsonrpc":"2.0","id":1,"method":"eth_getStorageAt","params":["0xaa00000000000000000000000000000000000000","0x00000000000000000000000000000000000000000000000000000000000000000","latest"]}
-<< {"jsonrpc":"2.0","id":1,"error":{"code":-32000,"message":"unable to decode storage key: hex string too long, want at most 32 bytes"}}
+<< {"jsonrpc":"2.0","id":1,"error":{"code":-32602,"message":"storage key too long (want at most 32 bytes): \"0x00000000000000000000000000000000000000000000000000000000000000000\""}}
diff --git a/tests/eth_getStorageAt/get-storage-invalid-key.io b/tests/eth_getStorageAt/get-storage-invalid-key.io
index dc4e1f836..4cd9bf174 100644
--- a/tests/eth_getStorageAt/get-storage-invalid-key.io
+++ b/tests/eth_getStorageAt/get-storage-invalid-key.io
@@ -1,3 +1,3 @@
 // requests an invalid storage key
 >> {"jsonrpc":"2.0","id":1,"method":"eth_getStorageAt","params":["0xaa00000000000000000000000000000000000000","0xasdf","latest"]}
-<< {"jsonrpc":"2.0","id":1,"error":{"code":-32000,"message":"unable to decode storage key: hex string invalid"}}
+<< {"jsonrpc":"2.0","id":1,"error":{"code":-32602,"message":"invalid hex in storage key: \"0xasdf\""}}