diff --git a/file_append_transaction_test.go b/file_append_transaction_test.go
new file mode 100644
index 000000000..06a0c174a
--- /dev/null
+++ b/file_append_transaction_test.go
@@ -0,0 +1,93 @@
+package hedera
+
+import (
+	"github.com/stretchr/testify/assert"
+	"os"
+	"strings"
+	"testing"
+)
+
+func TestSerializeFileAppendTransaction(t *testing.T) {
+	mockClient, err := newMockClient()
+	assert.NoError(t, err)
+
+	privateKey, err := PrivateKeyFromString(mockPrivateKey)
+	assert.NoError(t, err)
+
+	tx, err := NewFileAppendTransaction().
+		SetFileID(FileID{File: 5}).
+		SetContents([]byte("This is some random data")).
+		SetMaxTransactionFee(HbarFromTinybar(1e6)).
+		SetTransactionID(testTransactionID).
+		FreezeWith(mockClient)
+
+	assert.NoError(t, err)
+
+	tx.Sign(privateKey)
+
+	assert.Equal(t, `bodyBytes:"\n\016\n\010\010\334\311\007\020\333\237\t\022\002\030\003\022\002\030\003\030\300\204=\"\002\010x\202\001\036\022\002\030\005\"\030Thisissomerandomdata"sigMap:<sigPair:<pubKeyPrefix:"\344\361\300\353L}\315\303\347\353\021p\263\010\212=\022\242\227\364\243\353\342\362\205\003\375g5F\355\216"ed25519:"\211Q\013\365\342\\\257B\255\370\347t\234`+"`"+`)\271\017\\\273\266\367\347\214\256]D\2004\220kC$:\252\245\227\257\351\365\344\236\244\032\336@\263a\353\001\276\257\300)x\254\021\032\217\223DF\316\016\004">>transactionID:<transactionValidStart:<seconds:124124nanos:151515>accountID:<accountNum:3>>nodeAccountID:<accountNum:3>transactionFee:1000000transactionValidDuration:<seconds:120>fileAppend:<fileID:<fileNum:5>contents:"Thisissomerandomdata">`, strings.ReplaceAll(strings.ReplaceAll(tx.String(), " ", ""), "\n", ""))
+}
+
+func TestFileAppendTransaction_Execute(t *testing.T) {
+	client, err := ClientFromJsonFile(os.Getenv("CONFIG_FILE"))
+
+	if err != nil {
+		client = ClientForTestnet()
+	}
+
+	configOperatorID := os.Getenv("OPERATOR_ID")
+	configOperatorKey := os.Getenv("OPERATOR_KEY")
+
+	if configOperatorID != "" && configOperatorKey != "" {
+		operatorAccountID, err := AccountIDFromString(configOperatorID)
+		assert.NoError(t, err)
+
+		operatorKey, err := PrivateKeyFromString(configOperatorKey)
+		assert.NoError(t, err)
+
+		client.SetOperator(operatorAccountID, operatorKey)
+	}
+
+	client.SetMaxTransactionFee(NewHbar(2))
+
+	txID, err := NewFileCreateTransaction().
+		SetKeys(client.GetOperatorKey()).
+		SetContents([]byte("Hello")).
+		SetTransactionMemo("go sdk e2e tests").
+		Execute(client)
+
+	assert.NoError(t, err)
+
+	println("TransactionID", txID.TransactionID.String())
+
+	//receipt, err := txID.GetReceipt(client)
+	//assert.NoError(t, err)
+	//
+	//fileID := receipt.fileID
+	//assert.NotNil(t, fileID)
+	//
+	//txID, err = NewFileAppendTransaction().
+	//	SetFileID(*fileID).
+	//	SetContents([]byte(" world!")).
+	//	Execute(client)
+	//
+	//assert.NoError(t, err)
+	//
+	//_, err = txID.GetReceipt(client)
+	//assert.NoError(t, err)
+	//
+	//contents, err := NewFileContentsQuery().
+	//	SetFileID(*fileID).
+	//	Execute(client)
+	//assert.NoError(t, err)
+	//
+	//assert.Equal(t, []byte("Hello world!"), contents)
+	//
+	//txID, err = NewFileDeleteTransaction().
+	//	SetFileID(*fileID).
+	//	Execute(client)
+	//assert.NoError(t, err)
+	//
+	//_, err = txID.GetReceipt(client)
+	//assert.NoError(t, err)
+}