@Test
public void shouldSuspendTransactionAndReleaseForOtherRequestsAfterExecutingStatements()
throws Exception {
// given
KernelAPI kernel = mockKernel();
TransitionalTxManagementKernelTransaction transactionContext =
(TransitionalTxManagementKernelTransaction) kernel.newTransaction();
TransactionRegistry registry = mock(TransactionRegistry.class);
when(registry.begin()).thenReturn(1337l);
ExecutionEngine engine = mock(ExecutionEngine.class);
ExecutionResult executionResult = mock(ExecutionResult.class);
when(engine.execute("query", map())).thenReturn(executionResult);
TransactionHandle handle =
new TransactionHandle(kernel, engine, registry, uriScheme, StringLogger.DEV_NULL);
ExecutionResultSerializer output = mock(ExecutionResultSerializer.class);
// when
handle.execute(
statements(new Statement("query", map(), false, (ResultDataContent[]) null)), output);
// then
InOrder transactionOrder = inOrder(transactionContext, registry);
transactionOrder.verify(transactionContext).suspendSinceTransactionsAreStillThreadBound();
transactionOrder.verify(registry).release(1337l, handle);
InOrder outputOrder = inOrder(output);
outputOrder.verify(output).transactionCommitUri(uriScheme.txCommitUri(1337));
outputOrder.verify(output).statementResult(executionResult, false, (ResultDataContent[]) null);
outputOrder.verify(output).transactionStatus(anyLong());
outputOrder.verify(output).errors(argThat(hasNoErrors()));
outputOrder.verify(output).finish();
verifyNoMoreInteractions(output);
}
@Test
public void shouldRollbackTransactionIfExecutionErrorOccurs() throws Exception {
// given
KernelAPI kernel = mockKernel();
TransitionalTxManagementKernelTransaction transactionContext =
(TransitionalTxManagementKernelTransaction) kernel.newTransaction();
TransactionRegistry registry = mock(TransactionRegistry.class);
when(registry.begin()).thenReturn(1337l);
ExecutionEngine executionEngine = mock(ExecutionEngine.class);
when(executionEngine.execute("query", map())).thenThrow(new NullPointerException());
TransactionHandle handle =
new TransactionHandle(kernel, executionEngine, registry, uriScheme, StringLogger.DEV_NULL);
ExecutionResultSerializer output = mock(ExecutionResultSerializer.class);
// when
handle.execute(
statements(new Statement("query", map(), false, (ResultDataContent[]) null)), output);
// then
verify(transactionContext).rollback();
verify(registry).forget(1337l);
InOrder outputOrder = inOrder(output);
outputOrder.verify(output).transactionCommitUri(uriScheme.txCommitUri(1337));
outputOrder
.verify(output)
.errors(argThat(hasErrors(StatusCode.INTERNAL_STATEMENT_EXECUTION_ERROR)));
outputOrder.verify(output).finish();
verifyNoMoreInteractions(output);
}
@Test
public void shouldExecuteStatements() throws Exception {
// given
KernelAPI kernel = mockKernel();
ExecutionEngine executionEngine = mock(ExecutionEngine.class);
ExecutionResult executionResult = mock(ExecutionResult.class);
when(executionEngine.execute("query", map())).thenReturn(executionResult);
TransactionRegistry registry = mock(TransactionRegistry.class);
when(registry.begin()).thenReturn(1337l);
TransactionHandle handle =
new TransactionHandle(kernel, executionEngine, registry, uriScheme, StringLogger.DEV_NULL);
ExecutionResultSerializer output = mock(ExecutionResultSerializer.class);
// when
handle.execute(
statements(new Statement("query", map(), false, (ResultDataContent[]) null)), output);
// then
verify(executionEngine).execute("query", map());
InOrder outputOrder = inOrder(output);
outputOrder.verify(output).transactionCommitUri(uriScheme.txCommitUri(1337));
outputOrder.verify(output).statementResult(executionResult, false, (ResultDataContent[]) null);
outputOrder.verify(output).transactionStatus(anyLong());
outputOrder.verify(output).errors(argThat(hasNoErrors()));
outputOrder.verify(output).finish();
verifyNoMoreInteractions(output);
}
@Test
public void shouldRollbackTransactionIfDeserializationErrorOccurs() throws Exception {
// given
KernelAPI kernel = mockKernel();
TransitionalTxManagementKernelTransaction transactionContext =
(TransitionalTxManagementKernelTransaction) kernel.newTransaction();
TransactionRegistry registry = mock(TransactionRegistry.class);
when(registry.begin()).thenReturn(1337l);
TransactionHandle handle =
new TransactionHandle(
kernel, mock(ExecutionEngine.class), registry, uriScheme, StringLogger.DEV_NULL);
ExecutionResultSerializer output = mock(ExecutionResultSerializer.class);
// when
handle.execute(
deserilizationErrors(new Neo4jError(StatusCode.INVALID_REQUEST_FORMAT, new Exception())),
output);
// then
verify(transactionContext).rollback();
verify(registry).forget(1337l);
InOrder outputOrder = inOrder(output);
outputOrder.verify(output).transactionCommitUri(uriScheme.txCommitUri(1337));
outputOrder.verify(output).errors(argThat(hasErrors(StatusCode.INVALID_REQUEST_FORMAT)));
outputOrder.verify(output).finish();
verifyNoMoreInteractions(output);
}