1 files changed, 15 insertions, 0 deletions
diff --git a/java/src/test/java/com/google/protobuf/UnknownFieldSetTest.java b/java/src/test/java/com/google/protobuf/UnknownFieldSetTest.java
index 0ad2683d..8919414e 100644
--- a/java/src/test/java/com/google/protobuf/UnknownFieldSetTest.java
+++ b/java/src/test/java/com/google/protobuf/UnknownFieldSetTest.java
@@ -312,4 +312,19 @@ public class UnknownFieldSetTest extends TestCase {
                           .getVarintList());
     }
   }
+
+  public void testLargeVarint() throws Exception {
+    ByteString data =
+      UnknownFieldSet.newBuilder()
+        .addField(1,
+          UnknownFieldSet.Field.newBuilder()
+            .addVarint(0x7FFFFFFFFFFFFFFFL)
+            .build())
+        .build()
+        .toByteString();
+    UnknownFieldSet parsed = UnknownFieldSet.parseFrom(data);
+    UnknownFieldSet.Field field = parsed.getField(1);
+    assertEquals(1, field.getVarintList().size());
+    assertEquals(0x7FFFFFFFFFFFFFFFL, (long)field.getVarintList().get(0));
+  }
 }