// if (dir.exists()) {
// FSStoreTest.delDirContent(dir);
// } else {
// dir.mkdirs();
// }
MoleculeStore moleculeStore = new FSMoleculeStore(dir, new MapGraphCache());
addData(moleculeStore, "test12-m1.rdf");
long size1 = getRecursiveSize(dir);
System.out.println(size1);
addData(moleculeStore, "test12-m1.rdf");
long size2 = getRecursiveSize(dir);
assertEquals(size1, size2);
moleculeStore = new FSMoleculeStore(dir, new MapGraphCache());
addData(moleculeStore, "test12-m1.rdf");
long size3 = getRecursiveSize(dir);
assertEquals(size1, size3);
}