@Test
  public void testAddGetRemoveConfiguration() {
    ColumnFamilyDescriptorBuilder builder =
      ColumnFamilyDescriptorBuilder.newBuilder(Bytes.toBytes("foo"));
    String key = "Some";
    String value = "value";
    builder.setConfiguration(key, value);
    assertEquals(value, builder.build().getConfigurationValue(key));
    builder.removeConfiguration(key);
    assertEquals(null, builder.build().getConfigurationValue(key));
  }
Test that we add and remove strings from configuration properly.
hbase-client/src/test/java/org/apache/hadoop/hbase/client/TestColumnFamilyDescriptorBuilder.java