trace/mdsal-trace-impl/src/test/java/org/opendaylight/mdsal/trace/test/TracingBrokerTest.java

   1 /*
   2  * Copyright (c) 2017 Red Hat, Inc. and others. All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.mdsal.trace.test;
   9
  10 import static com.google.common.truth.Truth.assertThat;
  11 import static java.nio.charset.StandardCharsets.UTF_8;
  12 import static org.mockito.Mockito.RETURNS_DEEP_STUBS;
  13 import static org.mockito.Mockito.mock;
  14
  15 import java.io.ByteArrayOutputStream;
  16 import java.io.PrintStream;
  17 import org.junit.Test;
  18 import org.opendaylight.mdsal.binding.dom.codec.api.BindingNormalizedNodeSerializer;
  19 import org.opendaylight.mdsal.dom.api.DOMDataBroker;
  20 import org.opendaylight.mdsal.dom.api.DOMDataTreeReadWriteTransaction;
  21 import org.opendaylight.mdsal.dom.api.DOMTransactionChain;
  22 import org.opendaylight.mdsal.trace.impl.TracingBroker;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.mdsaltrace.rev160908.Config;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.mdsaltrace.rev160908.ConfigBuilder;
  25
  26 /**
  27  * Test of {@link TracingBroker}. This test resides outside of org.opendaylight.mdsal.trace.impl package on purpose,
  28  * as the package name is used to suppress stack entries.
  29  *
  30  * @author Michael Vorburger.ch
  31  */
  32 public class TracingBrokerTest {
  33
  34     @Test
  35     @SuppressWarnings({ "resource", "unused" }) // Finding resource leaks is the point of this test
  36     public void testPrintOpenTransactions() {
  37         DOMDataBroker domDataBroker = mock(DOMDataBroker.class, RETURNS_DEEP_STUBS);
  38         Config config = new ConfigBuilder().setTransactionDebugContextEnabled(true).build();
  39         BindingNormalizedNodeSerializer codec = mock(BindingNormalizedNodeSerializer.class);
  40         TracingBroker tracingBroker = new TracingBroker("mock", domDataBroker, config, codec);
  41
  42         for (int i = 0; i < 3; i++) {
  43             DOMDataTreeReadWriteTransaction tx = tracingBroker.newReadWriteTransaction();
  44         }
  45         DOMDataTreeReadWriteTransaction anotherTx = tracingBroker.newReadWriteTransaction();
  46
  47         DOMTransactionChain txChain = tracingBroker.createTransactionChain(null);
  48         DOMDataTreeReadWriteTransaction txFromChain = txChain.newReadWriteTransaction();
  49
  50         ByteArrayOutputStream baos = new ByteArrayOutputStream();
  51         PrintStream ps = new PrintStream(baos);
  52         boolean printReturnValue = tracingBroker.printOpenTransactions(ps, 1);
  53         String output = new String(baos.toByteArray(), UTF_8);
  54
  55         assertThat(printReturnValue).isTrue();
  56         // Assert expectations about stack trace
  57         assertThat(output).contains("testPrintOpenTransactions(TracingBrokerTest.java");
  58         assertThat(output).doesNotContain(TracingBroker.class.getName());
  59
  60         String previousLine = "";
  61         for (String line : output.split("\n")) {
  62             if (line.contains("(...")) {
  63                 assertThat(previousLine.contains("(...)")).isFalse();
  64             }
  65             previousLine = line;
  66         }
  67
  68         // assert that the sorting works - the x3 is shown before the x1
  69         assertThat(output).contains("  DataBroker : newReadWriteTransaction()\n    3x");
  70
  71         // We don't do any verify/times on the mocks,
  72         // because the main point of the test is just to verify that
  73         // printOpenTransactions runs through without any exceptions
  74         // (e.g. it used to have a ClassCastException).
  75     }
  76
  77 }