Add Suntech encoder test

src/test/java/org/traccar/ProtocolTest.java

@@ -353,14 +353,14 @@ public class ProtocolTest extends BaseTest {
         verifyFrame(expected, encoder.encodeCommand(command));
     }
 
-    protected void verifyCommand(
-            BaseProtocolEncoder encoder, BaseProtocolDecoder decoder, Command command, ByteBuf expected) {
+    protected Object encodeCommand(
+            BaseProtocolEncoder encoder, BaseProtocolDecoder decoder, Command command) {
         var pipeline = mock(ChannelPipeline.class);
         when(pipeline.iterator()).thenReturn(
                 List.<Map.Entry<String, ChannelHandler>>of(Map.entry("decoder", decoder)).iterator());
         var channel = mock(Channel.class);
         when(channel.pipeline()).thenReturn(pipeline);
-        verifyFrame(expected, encoder.encodeCommand(channel, command));
+        return encoder.encodeCommand(channel, command);
     }
 
     protected void verifyFrame(ByteBuf expected, Object object) {

src/test/java/org/traccar/protocol/Jt808ProtocolEncoderTest.java

@@ -16,7 +16,9 @@ public class Jt808ProtocolEncoderTest extends ProtocolTest {
         command.setDeviceId(1);
         command.setType(Command.TYPE_ENGINE_STOP);
 
-        verifyCommand(encoder, decoder, command, binary("7e810500010b3a73ce2ff20000f0247e"));
+        verifyFrame(
+            binary("7e810500010b3a73ce2ff20000f0247e"),
+            encodeCommand(encoder, decoder, command));
 
     }
 

src/test/java/org/traccar/protocol/SuntechProtocolEncoderTest.java

@@ -0,0 +1,27 @@
+package org.traccar.protocol;
+
+import org.junit.jupiter.api.Test;
+import org.traccar.ProtocolTest;
+import org.traccar.model.Command;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class SuntechProtocolEncoderTest extends ProtocolTest {
+
+    @Test
+    public void testEncode() throws Exception {
+
+        var decoder = inject(new SuntechProtocolDecoder(null));
+        var encoder = inject(new SuntechProtocolEncoder(null));
+
+        Command command = new Command();
+        command.setDeviceId(1);
+        command.setType(Command.TYPE_REBOOT_DEVICE);
+
+        assertEquals(
+            "SA200CMD;123456789012345;02;Reboot\r",
+            encodeCommand(encoder, decoder, command));
+
+    }
+
+}