@BeforeClass
public static void setupClass() throws IOException {
graphDb =
new GraphDatabaseFactory()
.newEmbeddedDatabase("/tmp/neo4j/" + RandomStringUtils.randomAlphanumeric(5));
usersAndMovies = new UsersAndMovies_20Style(graphDb);
usersAndMovies.reset();
usersAndMovies.createMoviesNodes();
}
@Test
public void listing3_4_create_realationships_between_users() {
usersAndMovies.createSimpleRelationshipsBetweenUsers();
try (Transaction tx = graphDb.beginTx()) {
assertTrue(usersAndMovies.user1.hasRelationship(MyRelationshipTypes.IS_FRIEND_OF));
tx.success();
}
}
@Test
public void listing3_2_create_single_user() {
usersAndMovies.createSingleUser();
try (Transaction tx = graphDb.beginTx()) {
assertNotNull(graphDb.getNodeById(0));
tx.success();
}
}
@Test
public void listing3_8_add_type_properties_to_all_nodes() {
usersAndMovies.addTypePropertiesToNodes();
try (Transaction tx = graphDb.beginTx()) {
assertEquals("User", usersAndMovies.user1.getProperty("type"));
assertEquals("Movie", usersAndMovies.movie1.getProperty("type"));
tx.success();
}
}
@Test
public void listing3_6_add_more_properties_to_user_nodes() {
usersAndMovies.addMorePropertiesToUsers();
try (Transaction tx = graphDb.beginTx()) {
assertTrue(usersAndMovies.user1.hasProperty("year_of_birth"));
assertEquals(1982, usersAndMovies.user1.getProperty("year_of_birth"));
tx.success();
}
}
@Test
public void listing3_5_add_properties_to_user_nodes() {
usersAndMovies.addPropertiesToUserNodes();
try (Transaction tx = graphDb.beginTx()) {
assertTrue(usersAndMovies.user1.hasProperty("name"));
assertEquals("John Johnson", usersAndMovies.user1.getProperty("name"));
tx.success();
}
}
@Test
public void listing3_3_create_multiple_users() {
usersAndMovies.createMultipleUsersInSingleTransaction();
try (Transaction tx = graphDb.beginTx()) {
assertNotNull(graphDb.getNodeById(1));
assertNotNull(graphDb.getNodeById(2));
tx.success();
}
}
@Test
public void listing3_10_node_labels() {
usersAndMovies.addLabelToMovies();
try (Transaction tx = graphDb.beginTx()) {
ResourceIterable<Node> movies =
GlobalGraphOperations.at(graphDb).getAllNodesWithLabel(DynamicLabel.label("MOVIES"));
assertEquals(3, IteratorUtil.count(movies));
tx.success();
}
}
@Test
public void listing3_9_add_properties_to_relationships() {
usersAndMovies.addPropertiesToRelationships();
try (Transaction tx = graphDb.beginTx()) {
Relationship hasSeen =
usersAndMovies.user1.getSingleRelationship(
MyRelationshipTypes.HAS_SEEN, Direction.OUTGOING);
assertEquals(5, hasSeen.getProperty("stars"));
tx.success();
}
}
@Test
public void listing3_11_node_labels_and_property() {
try {
usersAndMovies.addLabelToMovies();
} catch (Exception e) {
// ignore if index already exist
}
try (Transaction tx = graphDb.beginTx()) {
ResourceIterable<Node> movies =
graphDb.findNodesByLabelAndProperty(DynamicLabel.label("MOVIES"), "name", "Fargo");
assertEquals(1, IteratorUtil.count(movies));
tx.success();
}
}