@Theory
    public void removeEntries(int size) {
        Map<String, String> expected = new LinkedHashMap<>();
        expected.put("C", "X_X");

        CaseInsensitiveStringMultiMap mmap = new CaseInsensitiveStringMultiMap(size);
        // Additional entries should be ignored
        mmap.add("a", "x").add("a", "y").add("A", "z").add("a", "XX").add("C", "X_X");
        mmap.remove("a");
        Map<String, String> actual = mmap.toMap();

        Assert.assertEquals(expected, actual);
    }
@author Marc Savy {@literal <msavy@redhat.com>}
gateway/engine/beans/src/test/java/io/apiman/gateway/engine/beans/util/CaseInsensitiveStringMultiMapTest.java