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diff --git a/src/test/java/org/apache/commons/lang3/text/CompositeFormatTest.java b/src/test/java/org/apache/commons/lang3/text/CompositeFormatTest.java
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+++ b/src/test/java/org/apache/commons/lang3/text/CompositeFormatTest.java
@@ -0,0 +1,89 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.commons.lang3.text;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.text.FieldPosition;
+import java.text.Format;
+import java.text.ParsePosition;
+import java.text.SimpleDateFormat;
+import java.util.Locale;
+
+import org.apache.commons.lang3.AbstractLangTest;
+import org.junit.jupiter.api.Test;
+
+/**
+ * Unit tests for {@link org.apache.commons.lang3.text.CompositeFormat}.
+ */
+@Deprecated
+public class CompositeFormatTest extends AbstractLangTest {
+
+    /**
+     * Ensures that the parse/format separation is correctly maintained.
+     */
+    @Test
+    public void testCompositeFormat() {
+
+        final Format parser = new Format() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public StringBuffer format(final Object obj, final StringBuffer toAppendTo, final FieldPosition pos) {
+                throw new UnsupportedOperationException("Not implemented");
+            }
+
+            @Override
+            public Object parseObject(final String source, final ParsePosition pos) {
+                return null;    // do nothing
+            }
+        };
+
+        final Format formatter = new Format() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public StringBuffer format(final Object obj, final StringBuffer toAppendTo, final FieldPosition pos) {
+                return null;    // do nothing
+            }
+
+            @Override
+            public Object parseObject(final String source, final ParsePosition pos) {
+                throw new UnsupportedOperationException("Not implemented");
+            }
+        };
+
+        final CompositeFormat composite = new CompositeFormat(parser, formatter);
+
+        composite.parseObject("", null);
+        composite.format(new Object(), new StringBuffer(), null);
+        assertEquals(parser, composite.getParser(), "Parser get method incorrectly implemented");
+        assertEquals(formatter, composite.getFormatter(), "Formatter get method incorrectly implemented");
+    }
+
+    @Test
+    public void testUsage() throws Exception {
+        final Format f1 = new SimpleDateFormat("MMddyyyy", Locale.ENGLISH);
+        final Format f2 = new SimpleDateFormat("MMMM d, yyyy", Locale.ENGLISH);
+        final CompositeFormat c = new CompositeFormat(f1, f2);
+        final String testString = "January 3, 2005";
+        assertEquals(testString, c.format(c.parseObject("01032005")));
+        assertEquals(testString, c.reformat("01032005"));
+    }
+
+}