diff --git a/icu4j/main/core/src/test/java/com/ibm/icu/dev/test/impl/UnitsTest.java b/icu4j/main/core/src/test/java/com/ibm/icu/dev/test/impl/UnitsTest.java
index 09d8eeafb3b6..4bdd5c6518d0 100644
--- a/icu4j/main/core/src/test/java/com/ibm/icu/dev/test/impl/UnitsTest.java
+++ b/icu4j/main/core/src/test/java/com/ibm/icu/dev/test/impl/UnitsTest.java
@@ -27,6 +27,7 @@
 import com.ibm.icu.util.Measure;
 import com.ibm.icu.util.MeasureUnit;
 import com.ibm.icu.util.ULocale;
+import com.ibm.icu.util.MeasureUnit.Complexity;
 
 public class UnitsTest {
 
@@ -817,4 +818,38 @@ public TestCase(String name, String category, String usage, String region, Strin
             }
         }
     }
+
+    @Test
+    public void testWithConstantDenominator() {
+        class TestCase {
+            String unitIdentifier;
+            long constantDenominator;
+            Complexity expectedComplexity;
+
+            TestCase(String unitIdentifier, long constantDenominator, Complexity expectedComplexity) {
+                this.unitIdentifier = unitIdentifier;
+                this.constantDenominator = constantDenominator;
+                this.expectedComplexity = expectedComplexity;
+            }
+        }
+
+        TestCase[] testCases = {
+                new TestCase("meter-per-second", 100, Complexity.COMPOUND),
+                new TestCase("meter-per-100-second", 0, Complexity.COMPOUND),
+                new TestCase("portion", 100, Complexity.COMPOUND),
+                new TestCase("portion-per-100", 0, Complexity.SINGLE),
+        };
+
+        for (TestCase testCase : testCases) {
+            MeasureUnit unit = MeasureUnit.forIdentifier(testCase.unitIdentifier);
+            unit = unit.withConstantDenominator(testCase.constantDenominator);
+
+            long actualDenominator = unit.getConstantDenominator();
+            Complexity actualComplexity = unit.getComplexity();
+
+            assertEquals(testCase.constantDenominator, actualDenominator);
+            assertEquals(testCase.expectedComplexity, actualComplexity);
+        }
+
+    }
 }