diff --git a/defichain/transactions/builder/modules/data.py b/defichain/transactions/builder/modules/data.py
index fc60b17..c9dc83c 100644
--- a/defichain/transactions/builder/modules/data.py
+++ b/defichain/transactions/builder/modules/data.py
@@ -62,7 +62,7 @@ def hex_data(self, data: str, addressAmountTo=None, changeAddress: str = None, i
 
         for address in addressAmountTo:
             value, token = addressAmountTo[address].split("@")
-            addressOutput = TxAddressOutput(value, address)
+            addressOutput = TxAddressOutput(int(value), address)
             tx.add_output(addressOutput)
 
         changeOutputValue = inputValue - outputValue
diff --git a/tests/transactions/builder/__init__.py b/tests/transactions/builder/__init__.py
index d1c5e8f..787a9e6 100644
--- a/tests/transactions/builder/__init__.py
+++ b/tests/transactions/builder/__init__.py
@@ -1,7 +1,7 @@
 from defichain import Wallet, Ocean, TxBuilder
 from defichain.networks import DefichainMainnet
 from defichain.transactions.rawtransactions import Transaction
-from defichain.transactions.utils import BuildAddressAmounts
+from defichain.transactions.utils import BuildAddressAmounts, Converter
 
 
 class Keys:
@@ -31,7 +31,22 @@ class TestAccounts:
 
 
 class TestData:
-    pass
+    string = "Hello DeFighters"
+    hex = Converter.str_to_hex(string)
+
+    addressAmountTo = BuildAddressAmounts()
+    addressAmountTo.add(builder_p2pkh.get_address(), "DFI", 0.000001)
+    addressAmountTo.add(builder_p2sh.get_address(), "DFI", 0.000001)
+    addressAmountTo.add(builder_p2wpkh.get_address(), "DFI", 0.000001)
+
+    hex_serialized = "0400000000010149b8ea9b2b0224e44126b86bd1e2889a7dac0ec06fcfb0dc4dd13782e1c84fce0100000000fffffff" \
+                     "f050000000000000000226a203438363536633663366632303434363534363639363736383734363537323733006400" \
+                     "0000000000001976a914ad56321e69b7e2d30aeca9f49979ffc53084296f88ac00640000000000000017a91493a457d" \
+                     "0e4cc789beb65eb77742d35297652dafe87006400000000000000160014ad56321e69b7e2d30aeca9f49979ffc53084" \
+                     "296f00403a000000000000160014ad56321e69b7e2d30aeca9f49979ffc53084296f0002483045022100e3841478525" \
+                     "ee6227f0725a4721d0ca3b81742043bee2ad5cbe22518a3effb2802206f34d721767b7d29916123a770e44b0c6a440e" \
+                     "d8b4e46fb8aed206311ae996be012103f110404297e471ad86d1aabc8a885bd4d1ec71bc3f31bef8ed2ff9ad3032460" \
+                     "000000000"
 
 
 class TestGovernance:
@@ -119,4 +134,4 @@ class TestVault:
     pass
 
 
-print(builder_p2wpkh.get_inputs_tx())
+print(builder_p2wpkh.data.hex_data(TestData.hex, TestData.addressAmountTo.build(), Addresses.P2WPKH))
diff --git a/tests/transactions/builder/test_data.py b/tests/transactions/builder/test_data.py
new file mode 100644
index 0000000..dd30dde
--- /dev/null
+++ b/tests/transactions/builder/test_data.py
@@ -0,0 +1,25 @@
+import pytest
+from . import builder_p2wpkh, Addresses, TestData
+
+from defichain.transactions.rawtransactions import Transaction
+from defichain.networks import DefichainMainnet
+
+
+@pytest.mark.transactions
+def test_hex_data():  # 01
+    tx = builder_p2wpkh.data.hex_data(data=TestData.hex, addressAmountTo=TestData.addressAmountTo.build(),
+                                      changeAddress=Addresses.P2WPKH)
+
+    assert tx.serialize() == TestData.hex_serialized
+
+    assert Transaction.deserialize(DefichainMainnet, tx.serialize()).serialize() == tx.serialize()
+
+
+@pytest.mark.transactions
+def test_str_data():  # 02
+    tx = builder_p2wpkh.data.str_data(data=TestData.string, addressAmountTo=TestData.addressAmountTo.build(),
+                                      changeAddress=Addresses.P2WPKH)
+
+    assert tx.serialize() == TestData.hex_serialized
+
+    assert Transaction.deserialize(DefichainMainnet, tx.serialize()).serialize() == tx.serialize()