### Question:
DefaultDatabaseNamingConvention extends AbstractDatabaseNamingConvention { @Override protected String getFieldQuoteStart() { return DEFAULT_QUOTE; }  @Override String fullNameOf(String schemaName, String tableName, String columnName); @Override String fullNameOf(String schemaName, String tableName); @Override Set<String> getSchemaExcludeSet();  }### Answer:
@Test void getFieldQuoteStart() { assertNotNull(instance.getFieldQuoteStart()); }