Examples with ConnectionException org.neo4j.server.http.cypher.format.api.ConnectionException used on opensource projects

Example 21 with ConnectionException

use of org.neo4j.server.http.cypher.format.api.ConnectionException in project neo4j by neo4j.

the class InvocationTest method shouldKeepTransactionOpenIfConnectionErrorWhenWritingOutputInImplicitTransaction.

@Test
void shouldKeepTransactionOpenIfConnectionErrorWhenWritingOutputInImplicitTransaction() {
    // given
    when(internalTransaction.execute("query", emptyMap())).thenReturn(executionResult);
    when(registry.begin(any(TransactionHandle.class))).thenReturn(1337L);
    TransactionHandle handle = getTransactionHandle(executionEngine, registry, false);
    InputEventStream inputEventStream = mock(InputEventStream.class);
    Statement statement = new Statement("query", map());
    when(inputEventStream.read()).thenReturn(statement, NULL_STATEMENT);
    mockDefaultResult();
    Invocation invocation = new Invocation(log, handle, uriScheme.txCommitUri(1337L), mock(MemoryPool.class, RETURNS_MOCKS), inputEventStream, false);
    doThrow(new ConnectionException("Connection error", new IOException("Broken pipe"))).when(outputEventStream).writeStatementEnd(any(), any(), any(), any());
    // when
    var e = assertThrows(ConnectionException.class, () -> invocation.execute(outputEventStream));
    assertEquals("Connection error", e.getMessage());
    // then
    verify(internalTransaction, never()).rollback();
    verify(registry, never()).forget(1337L);
    InOrder outputOrder = inOrder(outputEventStream);
    outputOrder.verify(outputEventStream).writeStatementStart(statement, List.of("c1", "c2", "c3"));
    verifyDefaultResultRows(outputOrder);
    outputOrder.verify(outputEventStream).writeStatementEnd(queryExecutionType, queryStatistics, executionPlanDescription, notifications);
    verifyNoMoreInteractions(outputEventStream);
}