### Question:
UnknownDatabaseProvider extends JdbcIntermediateRdbmsProvider { @NotNull @Override public Pattern connectionStringPattern() { return CONNECTION_STRING_PATTERN; }  @NotNull @Override Rdbms rdbms(); @NotNull @Override Pattern connectionStringPattern(); @Override byte specificity(); @NotNull @Override BaseExceptionRecognizer getExceptionRecognizer();  }### Answer:
@Test public void accepts_connectionString_H2() { PatternAssert.assertThat(myProvider.connectionStringPattern()).fits(H2_CONNECTION_STRING); }