2 files changed, 26 insertions, 0 deletions
diff --git a/src/test/java/org/traccar/protocol/SnapperFrameDecoderTest.java b/src/test/java/org/traccar/protocol/SnapperFrameDecoderTest.java
new file mode 100644
index 000000000..260a18032
--- /dev/null
+++ b/src/test/java/org/traccar/protocol/SnapperFrameDecoderTest.java
@@ -0,0 +1,23 @@
+package org.traccar.protocol;
+
+import org.junit.jupiter.api.Test;
+import org.traccar.ProtocolTest;
+
+public class SnapperFrameDecoderTest extends ProtocolTest {
+
+    @Test
+    public void testDecode() throws Exception {
+
+        var decoder = inject(new SnapperFrameDecoder());
+
+        verifyFrame(
+                binary("4b0341a6b0c608000040000005000000000000007d5e14010068656c6c6f"),
+                decoder.decode(null, null, binary("4b0341a6b0c608000040000005000000000000007d5e14010068656c6c6f")));
+
+        verifyFrame(
+                binary("5012"),
+                decoder.decode(null, null, binary("5012")));
+
+    }
+
+}
diff --git a/src/test/java/org/traccar/protocol/SnapperProtocolDecoderTest.java b/src/test/java/org/traccar/protocol/SnapperProtocolDecoderTest.java
index bb79194eb..43df24316 100644
--- a/src/test/java/org/traccar/protocol/SnapperProtocolDecoderTest.java
+++ b/src/test/java/org/traccar/protocol/SnapperProtocolDecoderTest.java
@@ -22,6 +22,9 @@ public class SnapperProtocolDecoderTest extends ProtocolTest {
         verifyPosition(decoder, binary(
                 "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"));
 
+        verifyNull(decoder, binary(
+                "5003"));
+
     }
 
 }