### Question:
AgileHelper { public static String getSchemaName() { return PentahoSystem.getSystemSetting( SETTINGS_FILE, STAGING_SCHEMA, null ); }  static String getSchemaName(); static String getDatasourceSolutionStorage(); static String getDialect( DatabaseMeta meta, String jndiName ); static String getDialect( DatabaseMeta meta ); static String generateTableName( String filename ); static String getJndiName(); static int getCsvSampleRowSize(); static DatabaseMeta getDatabaseMeta(); static Connection getConnection( String jndiName ); static String getFolderPath( String project ); static String getTmpFolderPath( String project ); static String getProjectMetadataFolder( String project ); static final String PLUGIN_NAME; }### Answer:
@Test public void testGetSchemaName() { PentahoSystem.setSystemSettingsService( null ); assertNull( AgileHelper.getSchemaName() ); ISystemSettings systemSettings = mock( ISystemSettings.class ); when( systemSettings.getSystemSetting( anyString(), anyString(), anyString() ) ).thenReturn( null ); PentahoSystem.setSystemSettingsService( systemSettings ); assertNull( AgileHelper.getSchemaName() ); }