From 83fc4f32c0c49cc8785dd4f015aec8e9fba65f83 Mon Sep 17 00:00:00 2001
From: Allen <lvshuaino@gmail.com>
Date: Sat, 2 Apr 2022 17:38:18 +0800
Subject: [PATCH] add testcase

---
 .../ontio/smartcontract/EvmTransaction.java   | 103 ++++++++++++++++++
 1 file changed, 103 insertions(+)
 create mode 100644 src/test/java/com/github/ontio/smartcontract/EvmTransaction.java

diff --git a/src/test/java/com/github/ontio/smartcontract/EvmTransaction.java b/src/test/java/com/github/ontio/smartcontract/EvmTransaction.java
new file mode 100644
index 00000000..7c71f306
--- /dev/null
+++ b/src/test/java/com/github/ontio/smartcontract/EvmTransaction.java
@@ -0,0 +1,103 @@
+package com.github.ontio.smartcontract;
+
+import com.alibaba.fastjson.JSONArray;
+import com.alibaba.fastjson.JSONObject;
+import com.github.ontio.OntSdk;
+import com.github.ontio.common.Address;
+import com.github.ontio.common.Helper;
+import com.github.ontio.io.BinaryReader;
+import com.github.ontio.sdk.exception.SDKException;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.ByteArrayInputStream;
+import java.math.BigInteger;
+
+public class EvmTransaction {
+    public static final String ASSET_ONG_CODEHASH = "0200000000000000000000000000000000000000";
+    OntSdk ontSdk;
+
+    @Before
+    public void setUp() throws SDKException {
+        ontSdk = OntSdk.getInstance();
+        ontSdk.setRestful("https://POLARIS3.ONT.IO:10334");
+        ontSdk.setDefaultConnect(ontSdk.getRestful());
+    }
+
+    @Test
+    public void parseTransaction() throws Exception {
+        String txHash = "0xab0f0b72bde0112db1cffc661542bf7f7c3b593809ada9ccccde51d2abdfb85e";
+        String convertHex = Helper.toHexString(Helper.reverse(Helper.hexToBytes(txHash.substring(2))));
+        JSONObject eventObj = getEventObjByTxnHash(convertHex);
+
+        JSONArray notifyList = eventObj.getJSONArray("Notify");
+        if (notifyList.size() > 0) {
+
+            for (int i = 0, len = notifyList.size(); i < len; i++) {
+
+                JSONObject notifyObj = (JSONObject) notifyList.get(i);
+                String contractAddress = notifyObj.getString("ContractAddress");
+                if (ASSET_ONG_CODEHASH.equals(contractAddress)) {
+                    String evmStates = notifyObj.getString("States");
+                    if (evmStates.startsWith("0x")) {
+                        evmStates = evmStates.substring(2);
+                    }
+                    ByteArrayInputStream bais = new ByteArrayInputStream(Helper.hexToBytes(evmStates));
+                    BinaryReader reader = new BinaryReader(bais);
+                    byte[] addressBytes = reader.readBytes(20);
+                    // contract address ong 0000000000000000000000000000000000000002 ont 0000000000000000000000000000000000000001
+                    String contract = Helper.toHexString(addressBytes);
+                    System.out.println(contract);
+                    int length = reader.readInt();
+                    for (int j = 0; j < length; j++) {
+                        // 		transferSig := "Transfer(address,address,uint256)"
+                        //		// this should always be 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
+                        //		topic[0] = crypto.Keccak256Hash([]byte(transferSig))
+                        //		topic[1] = common.BytesToHash(from[:])
+                        //		topic[2] = common.BytesToHash(to[:])
+                        //		val := common.BytesToHash(value.Bytes())
+                        //		sl := &types.StorageLog{
+                        //			Address: common.BytesToAddress(utils.OngContractAddress[:]),
+                        //			Topics:  topic,
+                        //			Data:    val[:],
+                        //		}
+                        //		stateDB.AddLog(sl)
+                        byte[] TopicBytes = reader.readBytes(32);
+                        String topic = Helper.toHexString(TopicBytes);
+                        if (j == 0) {
+                            System.out.println("transferSig: " + topic);
+                        } else if (j == 1) {
+                            System.out.println("from evm addr: 0x" + topic.substring(24));
+                        } else {
+                            System.out.println("to evm addr: 0x" + topic.substring(24));
+                            Address addr = Address.parse(topic.substring(24));
+                            System.out.println("to ontology: " + addr.toBase58());
+                        }
+                    }
+                    byte[] dataBytes = reader.readVarBytes();
+                    String data = Helper.toHexString(dataBytes);
+                    System.out.println("hex value: " +  data);
+                    BigInteger value = new BigInteger(dataBytes);
+                    System.out.println("value: " + value);
+
+                }
+            }
+        }
+    }
+
+
+    private JSONObject getEventObjByTxnHash(String txnHash) throws Exception {
+        JSONObject eventObj = new JSONObject();
+        while (true) {
+            try {
+                eventObj = (JSONObject) ontSdk.getConnect().getSmartCodeEvent(txnHash);
+                break;
+            } catch (Exception ex) {
+                System.out.println(ex.getMessage());
+            }
+        }
+        return eventObj;
+    }
+
+
+}