// Add statement to the implicit null context.
sc.removeStatements(null, null, null);
before = countStatements(sc, uriA, uriB, null, false);
sc.addStatement(uriA, uriB, uriC);
sc.commit();
sc.begin();
after = countStatements(sc, uriA, uriB, null, false);
assertEquals(0, before);
assertEquals(1, after);
} finally {