add test case of WalletTest

Author: 317787106

framework/src/test/java/org/tron/core/WalletTest.java

@@ -552,6 +552,24 @@ public void getPaginatedExchangeList() {
         exchangeList.getExchangesList().get(1).getCreatorAddress().toStringUtf8());
   }
 
+  @Test
+  public void testGetExchangeById() {
+    buildExchange();
+    //
+    Exchange exchange = wallet.getExchangeById(ByteString.copyFrom(ByteArray.fromLong(1L)));
+    Assert.assertNotNull(exchange);
+    exchange = wallet.getExchangeById(ByteString.copyFrom(ByteArray.fromLong(3L)));
+    Assert.assertNull(exchange);
+  }
+
+  @Test
+  public void testGetExchangeList() {
+    buildExchange();
+    //
+    ExchangeList exchangeList = wallet.getExchangeList();
+    Assert.assertEquals(2, exchangeList.getExchangesCount());
+  }
+
   @Test
   public void getBlock() {
     GrpcAPI.BlockReq req = GrpcAPI.BlockReq.getDefaultInstance();