@Test
public void testLoadJsonMappingsFromFile() throws JsonParseException, JsonMappingException, IOException
{

	String filename = "src/test/resources/pentaho-transparent-authentication-mappings.json";
	inMemoryProvider.loadJsonMappingsFromFile(filename);
	
	String pentahoUser = inMemoryProvider.getUsername("showcase", "user0.3");
	assertNotNull(pentahoUser);
	assertEquals("tiffany", pentahoUser);
}