### Question:
AbstractDatabaseNamingConvention implements DatabaseNamingConvention { @Override public String encloseField(String field) { return getFieldEncloserStart() + field + getFieldEncloserEnd(); }  @Override String fullNameOf(String schemaName, String tableName, String columnName); @Override String fullNameOf(String schemaName, String tableName); @Override String quoteField(String field); @Override String encloseField(String field);  }### Answer:
@Test void encloseField() { assertNotNull(DATABASE_NAMING_CONVENTION.encloseField("field")); }