perf: String#getBytes(Charset) vs getBytes(String)

1 files changed, 13 insertions, 0 deletions

diff --git a/java/src/test/java/com/google/protobuf/BoundedByteStringTest.java b/java/src/test/java/com/google/protobuf/BoundedByteStringTest.java
index 6c9596ca..a11bef2e 100644
--- a/java/src/test/java/com/google/protobuf/BoundedByteStringTest.java
+++ b/java/src/test/java/com/google/protobuf/BoundedByteStringTest.java
@@ -72,6 +72,19 @@ public class BoundedByteStringTest extends LiteralByteStringTest {
         testString.substring(2, testString.length() - 6), roundTripString);
   }
 
+  @Override
+  public void testCharsetToString() throws UnsupportedEncodingException {
+    String testString = "I love unicode \u1234\u5678 characters";
+    LiteralByteString unicode = new LiteralByteString(testString.getBytes(ByteString.UTF_8));
+    ByteString chopped = unicode.substring(2, unicode.size() - 6);
+    assertEquals(classUnderTest + ".substring() must have the expected type",
+        classUnderTest, getActualClassName(chopped));
+
+    String roundTripString = chopped.toString(ByteString.UTF_8);
+    assertEquals(classUnderTest + " unicode bytes must match",
+        testString.substring(2, testString.length() - 6), roundTripString);
+  }
+
   public void testJavaSerialization() throws Exception {
     ByteArrayOutputStream out = new ByteArrayOutputStream();
     ObjectOutputStream oos = new ObjectOutputStream(out);