RussellSpitzer commented on code in PR #13284:
URL: https://github.com/apache/iceberg/pull/13284#discussion_r2191966032


##########
api/src/test/java/org/apache/iceberg/variants/TestSerializedObject.java:
##########
@@ -182,70 +182,59 @@ public void testMixedValueTypes() {
     assertThat(actualInner.get("f").asPrimitive().get()).isEqualTo((byte) 3);
   }
 
-  @Test
-  public void testTwoByteOffsets() {
-    // a string larger than 255 bytes to push the value offset size above 1 
byte
-    String randomString = RandomUtil.generateString(300, random);
+  @ParameterizedTest
+  @ValueSource(
+      ints = {
+        300, // a big string larger than 255 bytes to push the value offset 
size above 1 byte to
+        // test TwoByteOffsets
+        70_000 // a really-big string larger than 65535 bytes to push the 
value offset size above 1
+        // byte to test ThreeByteOffsets
+      })
+  public void testMultiByteOffsets(int multiByteOffset) {
+    String randomString = RandomUtil.generateString(multiByteOffset, random);
     SerializedPrimitive bigString = VariantTestUtil.createString(randomString);
 
-    // note that order doesn't matter. fields are sorted by name
-    Map<String, VariantValue> data = ImmutableMap.of("big", bigString, "a", 
I1, "b", I2, "c", I3);
-    ByteBuffer meta = VariantTestUtil.createMetadata(data.keySet(), true /* 
sort names */);
-    ByteBuffer value = VariantTestUtil.createObject(meta, data);
-
-    VariantMetadata metadata = VariantMetadata.from(meta);
-    SerializedObject object = SerializedObject.from(metadata, value, 
value.get(0));
-
-    assertThat(object.type()).isEqualTo(PhysicalType.OBJECT);
-    assertThat(object.numFields()).isEqualTo(4);
-
-    assertThat(object.get("a").type()).isEqualTo(PhysicalType.INT8);
-    assertThat(object.get("a").asPrimitive().get()).isEqualTo((byte) 1);
-    assertThat(object.get("b").type()).isEqualTo(PhysicalType.INT8);
-    assertThat(object.get("b").asPrimitive().get()).isEqualTo((byte) 2);
-    assertThat(object.get("c").type()).isEqualTo(PhysicalType.INT8);
-    assertThat(object.get("c").asPrimitive().get()).isEqualTo((byte) 3);
-    assertThat(object.get("big").type()).isEqualTo(PhysicalType.STRING);
-    assertThat(object.get("big").asPrimitive().get()).isEqualTo(randomString);
-  }
-
-  @Test
-  public void testThreeByteOffsets() {
-    // a string larger than 65535 bytes to push the value offset size above 1 
byte
-    String randomString = RandomUtil.generateString(70_000, random);
-    SerializedPrimitive reallyBigString = 
VariantTestUtil.createString(randomString);
-
     // note that order doesn't matter. fields are sorted by name
     Map<String, VariantValue> data =
-        ImmutableMap.of("really-big", reallyBigString, "a", I1, "b", I2, "c", 
I3);
+        ImmutableMap.of(
+            "small",
+            VariantTestUtil.createShortString("iceberg"),
+            "big",
+            bigString,
+            "a",
+            I1,
+            "b",
+            I2,
+            "c",
+            I3);
     ByteBuffer meta = VariantTestUtil.createMetadata(data.keySet(), true /* 
sort names */);
     ByteBuffer value = VariantTestUtil.createObject(meta, data);
 
     VariantMetadata metadata = VariantMetadata.from(meta);
     SerializedObject object = SerializedObject.from(metadata, value, 
value.get(0));
 
     assertThat(object.type()).isEqualTo(PhysicalType.OBJECT);
-    assertThat(object.numFields()).isEqualTo(4);
+    assertThat(object.numFields()).isEqualTo(5);
 
     assertThat(object.get("a").type()).isEqualTo(PhysicalType.INT8);
     assertThat(object.get("a").asPrimitive().get()).isEqualTo((byte) 1);
     assertThat(object.get("b").type()).isEqualTo(PhysicalType.INT8);
     assertThat(object.get("b").asPrimitive().get()).isEqualTo((byte) 2);
     assertThat(object.get("c").type()).isEqualTo(PhysicalType.INT8);
     assertThat(object.get("c").asPrimitive().get()).isEqualTo((byte) 3);
-    assertThat(object.get("really-big").type()).isEqualTo(PhysicalType.STRING);
-    
assertThat(object.get("really-big").asPrimitive().get()).isEqualTo(randomString);
+    VariantTestUtil.assertVariantString(object.get("big"), randomString);
+    VariantTestUtil.assertVariantString(object.get("small"), "iceberg");
   }
 
   @ParameterizedTest
   @ValueSource(booleans = {true, false})
   @SuppressWarnings({"unchecked", "rawtypes"})
   public void testLargeObject(boolean sortFieldNames) {
-    Map<String, SerializedPrimitive> fields = Maps.newHashMap();
+    Map<String, VariantPrimitive<?>> fields = Maps.newHashMap();
     for (int i = 0; i < 10_000; i += 1) {
       fields.put(
           RandomUtil.generateString(10, random),
-          VariantTestUtil.createString(RandomUtil.generateString(10, random)));
+          VariantTestUtil.createShortString(RandomUtil.generateString(10, 
random)));

Review Comment:
   The issue that both I and Aihua have here is that testLargeObjects is 
essentially being used to test two things. 
   
   Both the handling of large object and now also the handling of short strings 
in primitives. These are two different concepts for me and I would like them 
tested in independent tests.



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