@Test
public void shouldCorrectlyUpdateIndexesWhenChangingLabelsAndPropertyAtTheSameTime()
throws Exception {
// Given
GraphDatabaseService beansAPI = dbRule.getGraphDatabaseService();
Node myNode = createNode(beansAPI, map("name", "Hawking"), LABEL1, LABEL2);
createIndex(beansAPI, LABEL1, "name");
createIndex(beansAPI, LABEL2, "name");
createIndex(beansAPI, LABEL3, "name");
// When
try (Transaction tx = beansAPI.beginTx()) {
myNode.removeLabel(LABEL1);
myNode.addLabel(LABEL3);
myNode.setProperty("name", "Einstein");
tx.success();
}
// Then
assertThat(myNode, inTx(beansAPI, hasProperty("name").withValue("Einstein")));
assertThat(labels(myNode), containsOnly(LABEL2, LABEL3));
assertThat(findNodesByLabelAndProperty(LABEL1, "name", "Hawking", beansAPI), isEmpty());
assertThat(findNodesByLabelAndProperty(LABEL1, "name", "Einstein", beansAPI), isEmpty());
assertThat(findNodesByLabelAndProperty(LABEL2, "name", "Hawking", beansAPI), isEmpty());
assertThat(
findNodesByLabelAndProperty(LABEL2, "name", "Einstein", beansAPI), containsOnly(myNode));
assertThat(findNodesByLabelAndProperty(LABEL3, "name", "Hawking", beansAPI), isEmpty());
assertThat(
findNodesByLabelAndProperty(LABEL3, "name", "Einstein", beansAPI), containsOnly(myNode));
}
private void removeLabels(Node node, Label... labels) {
try (Transaction tx = dbRule.getGraphDatabaseService().beginTx()) {
for (Label label : labels) {
node.removeLabel(label);
}
tx.success();
}
}
@Test
public void shouldHandleLargeAmountsOfNodesAddedAndRemovedInSameTx() throws Exception {
// Given
GraphDatabaseAPI db = dbRule.getGraphDatabaseAPI();
int labelsToAdd = 80;
int labelsToRemove = 40;
// When
Node node;
try (Transaction tx = db.beginTx()) {
node = db.createNode();
// I create a lot of labels, enough to push the store to use two dynamic records
for (int l = 0; l < labelsToAdd; l++) {
node.addLabel(label("Label-" + l));
}
// and I delete some of them, enough to bring the number of dynamic records needed down to 1
for (int l = 0; l < labelsToRemove; l++) {
node.removeLabel(label("Label-" + l));
}
tx.success();
}
// Then
try (Transaction ignore = db.beginTx()) {
// All the labels remaining should be in the label scan store
for (int l = labelsToAdd - 1; l >= labelsToRemove; l--) {
Label label = label("Label-" + l);
assertThat(
"Should have founnd node when looking for label " + label,
single(GlobalGraphOperations.at(db).getAllNodesWithLabel(label)),
equalTo(node));
}
}
}
