diff --git a/testmodule/providers/jsonrpc/testConversions.nim b/testmodule/providers/jsonrpc/testConversions.nim
new file mode 100644
index 0000000..065729f
--- /dev/null
+++ b/testmodule/providers/jsonrpc/testConversions.nim
@@ -0,0 +1,96 @@
+import std/unittest
+import pkg/ethers/provider
+import pkg/ethers/providers/jsonrpc/conversions
+
+suite "JSON Conversions":
+
+  test "missing block number in Block isNone":
+    var json = %*{
+      "number": newJNull(),
+      "hash":"0x2d7d68c8f48b4213d232a1f12cab8c9fac6195166bb70a5fb21397984b9fe1c7",
+      "timestamp":"0x6285c293"
+    }
+
+    var blk = Block.fromJson(json)
+    check blk.number.isNone
+
+    json["number"] = newJString("")
+
+    blk = Block.fromJson(json)
+    check blk.number.isSome
+    check blk.number.get.isZero
+
+  test "missing block hash in Block isNone":
+
+    var blkJson = %*{
+      "subscription": "0x20",
+      "result":{
+        "number": "0x1",
+        "hash": newJNull(),
+        "timestamp": "0x6285c293"
+      }
+    }
+
+    var blk = Block.fromJson(blkJson["result"])
+    check blk.hash.isNone
+
+  test "missing block number in TransactionReceipt isNone":
+    var json = %*{
+      "sender": newJNull(),
+      "to": "0x5fbdb2315678afecb367f032d93f642f64180aa3",
+      "contractAddress": newJNull(),
+      "transactionIndex": "0x0",
+      "gasUsed": "0x10db1",
+      "logsBloom": "0x00000000000000000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000840020000000000000000000800000000000000000000000010000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000000000000000000042000000000000000000000000000000000000000000000000000020000000000000000000000000000000000001000000000000000000000000000000",
+      "blockHash": "0x7b00154e06fe4f27a87208eba220efb4dbc52f7429549a39a17bba2e0d98b960",
+      "transactionHash": "0xa64f07b370cbdcce381ec9bfb6c8004684341edfb6848fd418189969d4b9139c",
+      "logs": [
+        {
+          "data": "0x0000000000000000000000000000000000000000000000000000000000000064",
+          "topics": [
+            "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
+            "0x0000000000000000000000000000000000000000000000000000000000000000",
+            "0x00000000000000000000000070997970c51812dc3a010c7d01b50e0d17dc79c8"
+          ]
+        }
+      ],
+      "blockNumber": newJNull(),
+      "cumulativeGasUsed": "0x10db1",
+      "status": "0000000000000001"
+    }
+
+    var receipt = TransactionReceipt.fromJson(json)
+    check receipt.blockNumber.isNone
+
+    json["blockNumber"] = newJString("")
+    receipt = TransactionReceipt.fromJson(json)
+    check receipt.blockNumber.isSome
+    check receipt.blockNumber.get.isZero
+
+  test "missing block hash in TransactionReceipt isNone":
+    let json = %*{
+      "sender": newJNull(),
+      "to": "0x5fbdb2315678afecb367f032d93f642f64180aa3",
+      "contractAddress": newJNull(),
+      "transactionIndex": "0x0",
+      "gasUsed": "0x10db1",
+      "logsBloom": "0x00000000000000000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000840020000000000000000000800000000000000000000000010000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000000000000000000042000000000000000000000000000000000000000000000000000020000000000000000000000000000000000001000000000000000000000000000000",
+      "blockHash":  newJNull(),
+      "transactionHash": "0xa64f07b370cbdcce381ec9bfb6c8004684341edfb6848fd418189969d4b9139c",
+      "logs": [
+        {
+          "data": "0x0000000000000000000000000000000000000000000000000000000000000064",
+          "topics": [
+            "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
+            "0x0000000000000000000000000000000000000000000000000000000000000000",
+            "0x00000000000000000000000070997970c51812dc3a010c7d01b50e0d17dc79c8"
+          ]
+        }
+      ],
+      "blockNumber": newJNull(),
+      "cumulativeGasUsed": "0x10db1",
+      "status": "0000000000000001"
+    }
+
+    let receipt = TransactionReceipt.fromJson(json)
+    check receipt.blockHash.isNone
diff --git a/testmodule/providers/jsonrpc/testJsonRpcProvider.nim b/testmodule/providers/jsonrpc/testJsonRpcProvider.nim
index e85c500..ee00acc 100644
--- a/testmodule/providers/jsonrpc/testJsonRpcProvider.nim
+++ b/testmodule/providers/jsonrpc/testJsonRpcProvider.nim
@@ -85,103 +85,6 @@ for url in ["ws://localhost:8545", "http://localhost:8545"]:
       expect EthersError:
         discard await confirming
 
-    test "Conversion: missing block number in Block isNone":
-
-      var blkJson = %*{
-        "subscription": "0x20",
-        "result":{
-          "number": newJNull(),
-          "hash":"0x2d7d68c8f48b4213d232a1f12cab8c9fac6195166bb70a5fb21397984b9fe1c7",
-          "timestamp":"0x6285c293"
-        }
-      }
-
-      var blk = Block.fromJson(blkJson["result"])
-      check blk.number.isNone
-
-      blkJson["result"]["number"] = newJString("")
-
-      blk = Block.fromJson(blkJson["result"])
-      check blk.number.isSome
-      check blk.number.get.isZero
-
-  test "Conversion: missing block hash in Block isNone":
-
-    var blkJson = %*{
-      "subscription": "0x20",
-      "result":{
-        "number": "0x1",
-        "hash": newJNull(),
-        "timestamp": "0x6285c293"
-      }
-    }
-
-    var blk = Block.fromJson(blkJson["result"])
-    check blk.hash.isNone
-
-    test "Conversion: missing block number in TransactionReceipt isNone":
-
-      var txReceiptJson = %*{
-        "sender": newJNull(),
-        "to": "0x5fbdb2315678afecb367f032d93f642f64180aa3",
-        "contractAddress": newJNull(),
-        "transactionIndex": "0x0",
-        "gasUsed": "0x10db1",
-        "logsBloom": "0x00000000000000000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000840020000000000000000000800000000000000000000000010000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000000000000000000042000000000000000000000000000000000000000000000000000020000000000000000000000000000000000001000000000000000000000000000000",
-        "blockHash": "0x7b00154e06fe4f27a87208eba220efb4dbc52f7429549a39a17bba2e0d98b960",
-        "transactionHash": "0xa64f07b370cbdcce381ec9bfb6c8004684341edfb6848fd418189969d4b9139c",
-        "logs": [
-          {
-            "data": "0x0000000000000000000000000000000000000000000000000000000000000064",
-            "topics": [
-              "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
-              "0x0000000000000000000000000000000000000000000000000000000000000000",
-              "0x00000000000000000000000070997970c51812dc3a010c7d01b50e0d17dc79c8"
-            ]
-          }
-        ],
-        "blockNumber": newJNull(),
-        "cumulativeGasUsed": "0x10db1",
-        "status": "0000000000000001"
-      }
-
-      var txReceipt = TransactionReceipt.fromJson(txReceiptJson)
-      check txReceipt.blockNumber.isNone
-
-      txReceiptJson["blockNumber"] = newJString("")
-      txReceipt = TransactionReceipt.fromJson(txReceiptJson)
-      check txReceipt.blockNumber.isSome
-      check txReceipt.blockNumber.get.isZero
-
-    test "Conversion: missing block hash in TransactionReceipt isNone":
-
-      var txReceiptJson = %*{
-        "sender": newJNull(),
-        "to": "0x5fbdb2315678afecb367f032d93f642f64180aa3",
-        "contractAddress": newJNull(),
-        "transactionIndex": "0x0",
-        "gasUsed": "0x10db1",
-        "logsBloom": "0x00000000000000000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000840020000000000000000000800000000000000000000000010000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000000000000000000042000000000000000000000000000000000000000000000000000020000000000000000000000000000000000001000000000000000000000000000000",
-        "blockHash":  newJNull(),
-        "transactionHash": "0xa64f07b370cbdcce381ec9bfb6c8004684341edfb6848fd418189969d4b9139c",
-        "logs": [
-          {
-            "data": "0x0000000000000000000000000000000000000000000000000000000000000064",
-            "topics": [
-              "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
-              "0x0000000000000000000000000000000000000000000000000000000000000000",
-              "0x00000000000000000000000070997970c51812dc3a010c7d01b50e0d17dc79c8"
-            ]
-          }
-        ],
-        "blockNumber": newJNull(),
-        "cumulativeGasUsed": "0x10db1",
-        "status": "0000000000000001"
-      }
-
-      var txReceipt = TransactionReceipt.fromJson(txReceiptJson)
-      check txReceipt.blockHash.isNone
-
     test "raises JsonRpcProviderError when something goes wrong":
       let provider = JsonRpcProvider.new("http://invalid.")
       expect JsonRpcProviderError:
diff --git a/testmodule/providers/testJsonRpc.nim b/testmodule/providers/testJsonRpc.nim
index f302669..8dbf77e 100644
--- a/testmodule/providers/testJsonRpc.nim
+++ b/testmodule/providers/testJsonRpc.nim
@@ -1,5 +1,6 @@
 import ./jsonrpc/testJsonRpcProvider
 import ./jsonrpc/testJsonRpcSigner
 import ./jsonrpc/testJsonRpcSubscriptions
+import ./jsonrpc/testConversions
 
 {.warning[UnusedImport]:off.}