@Test
public void determineDriver() {
DataSourceProperties properties = new DataSourceProperties();
properties.setUrl("jdbc:mysql://mydb");
assertThat(properties.getDriverClassName()).isNull();
assertThat(properties.determineDriverClassName()).isEqualTo("com.mysql.jdbc.Driver");
}
@Test
public void determineDriverWithExplicitConfig() {
DataSourceProperties properties = new DataSourceProperties();
properties.setUrl("jdbc:mysql://mydb");
properties.setDriverClassName("org.hsqldb.jdbcDriver");
assertThat(properties.getDriverClassName()).isEqualTo("org.hsqldb.jdbcDriver");
assertThat(properties.determineDriverClassName()).isEqualTo("org.hsqldb.jdbcDriver");
}