Examples with ConstraintViolationException org.neo4j.graphdb.ConstraintViolationException used on opensource projects

Example 21 with ConstraintViolationException

use of org.neo4j.graphdb.ConstraintViolationException in project neo4j by neo4j.

the class UniqueConstraintCompatibility method onlineConstraintShouldRejectChangingEntryToAlreadyIndexedValueThatOtherTransactionsAreRemoving.

@Test
public void onlineConstraintShouldRejectChangingEntryToAlreadyIndexedValueThatOtherTransactionsAreRemoving() throws Exception {
    // Given
    givenOnlineConstraint();
    transaction(setProperty(b, "b"), success);
    Transaction otherTx = db.beginTx();
    a.removeLabel(label);
    suspend(otherTx);
    // When
    try {
        transaction(setProperty(b, "a"), success, fail("Changing a property to an already indexed value should have thrown"));
    } catch (ConstraintViolationException ignore) {
    // we're happy
    } finally {
        resume(otherTx);
        otherTx.failure();
        otherTx.close();
    }
}