### Question:
SchemaSource { public Source getSource() { return source; } SchemaSource(final InputStream inputStream, final String systemId); Source getSource(); @Override String toString(); @Override int hashCode(); @Override boolean equals(final Object obj);  }### Answer:
@Test public void testGetSource() { final Source source = schemaSource.getSource(); assertNotNull("Returned source is null.", source); assertEquals("Unexpected system id of the source.", SYSTEM_ID, source.getSystemId()); }