Integer depth = 0;
String filter = "filter";
Boolean showHidden = Boolean.TRUE;
Boolean includeAcls = Boolean.TRUE;
RepositoryFileTreeDto mockRepositoryFileTreeDto = mock( RepositoryFileTreeDto.class );
doReturn( mockRepositoryFileTreeDto ).when( fileResource.fileService )
.doGetTree( FileUtils.PATH_SEPARATOR, depth, filter, showHidden, includeAcls );
RepositoryFileTreeDto testDto = fileResource.doGetRootTree( depth, filter, showHidden, includeAcls );
assertEquals( mockRepositoryFileTreeDto, testDto );
verify( fileResource.fileService, times( 1 ) )
.doGetTree( FileUtils.PATH_SEPARATOR, depth, filter, showHidden, includeAcls );
}