Package org.camunda.bpm.engine.test.api.runtime

Source Code of org.camunda.bpm.engine.test.api.runtime.ProcessInstanceQueryTest

/* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*      http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.camunda.bpm.engine.test.api.runtime;

import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.camunda.bpm.engine.ProcessEngineException;
import org.camunda.bpm.engine.impl.test.PluggableProcessEngineTestCase;
import org.camunda.bpm.engine.impl.test.TestHelper;
import org.camunda.bpm.engine.runtime.Execution;
import org.camunda.bpm.engine.runtime.Incident;
import org.camunda.bpm.engine.runtime.ProcessInstance;
import org.camunda.bpm.engine.runtime.ProcessInstanceQuery;
import org.camunda.bpm.engine.test.Deployment;
import org.junit.Assert;

/**
* @author Joram Barrez
* @author Frederik Heremans
* @author Falko Menge
*/
public class ProcessInstanceQueryTest extends PluggableProcessEngineTestCase {

  private static String PROCESS_DEFINITION_KEY = "oneTaskProcess";
  private static String PROCESS_DEFINITION_KEY_2 = "oneTaskProcess2";

  private List<String> processInstanceIds;

  /**
   * Setup starts 4 process instances of oneTaskProcess
   * and 1 instance of oneTaskProcess2
   */
  protected void setUp() throws Exception {
    super.setUp();
    repositoryService.createDeployment()
      .addClasspathResource("org/camunda/bpm/engine/test/api/runtime/oneTaskProcess.bpmn20.xml")
      .addClasspathResource("org/camunda/bpm/engine/test/api/runtime/oneTaskProcess2.bpmn20.xml")
      .deploy();

    processInstanceIds = new ArrayList<String>();
    for (int i = 0; i < 4; i++) {
      processInstanceIds.add(runtimeService.startProcessInstanceByKey(PROCESS_DEFINITION_KEY, i + "").getId());
    }
    processInstanceIds.add(runtimeService.startProcessInstanceByKey(PROCESS_DEFINITION_KEY_2, "1").getId());
  }

  protected void tearDown() throws Exception {
    for (org.camunda.bpm.engine.repository.Deployment deployment : repositoryService.createDeploymentQuery().list()) {
      repositoryService.deleteDeployment(deployment.getId(), true);
    }
    super.tearDown();
  }

  public void testQueryNoSpecificsList() {
    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery();
    assertEquals(5, query.count());
    assertEquals(5, query.list().size());
  }

  public void testQueryNoSpecificsSingleResult() {
    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery();
    try {
      query.singleResult();
      fail();
    } catch (ProcessEngineException e) {
      // Exception is expected
    }
  }

  public void testQueryByProcessDefinitionKeySingleResult() {
    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery().processDefinitionKey(PROCESS_DEFINITION_KEY_2);
    assertEquals(1, query.count());
    assertEquals(1, query.list().size());
    assertNotNull(query.singleResult());
  }

  public void testQueryByInvalidProcessDefinitionKey() {
    assertNull(runtimeService.createProcessInstanceQuery().processDefinitionKey("invalid").singleResult());
    assertEquals(0, runtimeService.createProcessInstanceQuery().processDefinitionKey("invalid").list().size());
  }

  public void testQueryByProcessDefinitionKeyMultipleResults() {
    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery().processDefinitionKey(PROCESS_DEFINITION_KEY);
    assertEquals(4, query.count());
    assertEquals(4, query.list().size());

    try {
      query.singleResult();
      fail();
    } catch (ProcessEngineException e) {
      // Exception is expected
    }
  }

  public void testQueryByProcessInstanceId() {
    for (String processInstanceId : processInstanceIds) {
      assertNotNull(runtimeService.createProcessInstanceQuery().processInstanceId(processInstanceId).singleResult());
      assertEquals(1, runtimeService.createProcessInstanceQuery().processInstanceId(processInstanceId).list().size());
    }
  }

  public void testQueryByBusinessKeyAndProcessDefinitionKey() {
    assertEquals(1, runtimeService.createProcessInstanceQuery().processInstanceBusinessKey("0", PROCESS_DEFINITION_KEY).count());
    assertEquals(1, runtimeService.createProcessInstanceQuery().processInstanceBusinessKey("1", PROCESS_DEFINITION_KEY).count());
    assertEquals(1, runtimeService.createProcessInstanceQuery().processInstanceBusinessKey("2", PROCESS_DEFINITION_KEY).count());
    assertEquals(1, runtimeService.createProcessInstanceQuery().processInstanceBusinessKey("3", PROCESS_DEFINITION_KEY).count());
    assertEquals(1, runtimeService.createProcessInstanceQuery().processInstanceBusinessKey("1", PROCESS_DEFINITION_KEY_2).count());
  }

  public void testQueryByBusinessKey() {
    assertEquals(1, runtimeService.createProcessInstanceQuery().processInstanceBusinessKey("0").count());
    assertEquals(2, runtimeService.createProcessInstanceQuery().processInstanceBusinessKey("1").count());
  }

  public void testQueryByInvalidBusinessKey() {
    assertEquals(0, runtimeService.createProcessInstanceQuery().processInstanceBusinessKey("invalid").count());

    try {
      runtimeService.createProcessInstanceQuery().processInstanceBusinessKey(null).count();
      fail();
    } catch(ProcessEngineException e) {

    }
  }

  public void testQueryByInvalidProcessInstanceId() {
    assertNull(runtimeService.createProcessInstanceQuery().processInstanceId("I do not exist").singleResult());
    assertEquals(0, runtimeService.createProcessInstanceQuery().processInstanceId("I do not exist").list().size());
  }

  @Deployment(resources = {"org/camunda/bpm/engine/test/api/runtime/superProcess.bpmn20.xml",
                           "org/camunda/bpm/engine/test/api/runtime/subProcess.bpmn20.xml"})
  public void testQueryBySuperProcessInstanceId() {
    ProcessInstance superProcessInstance = runtimeService.startProcessInstanceByKey("subProcessQueryTest");

    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery().superProcessInstanceId(superProcessInstance.getId());
    ProcessInstance subProcessInstance = query.singleResult();
    assertNotNull(subProcessInstance);
    assertEquals(1, query.list().size());
    assertEquals(1, query.count());
  }

  public void testQueryByInvalidSuperProcessInstanceId() {
    assertNull(runtimeService.createProcessInstanceQuery().superProcessInstanceId("invalid").singleResult());
    assertEquals(0, runtimeService.createProcessInstanceQuery().superProcessInstanceId("invalid").list().size());
  }

  @Deployment(resources = {"org/camunda/bpm/engine/test/api/runtime/superProcess.bpmn20.xml",
                           "org/camunda/bpm/engine/test/api/runtime/subProcess.bpmn20.xml"})
  public void testQueryBySubProcessInstanceId() {
    ProcessInstance superProcessInstance = runtimeService.startProcessInstanceByKey("subProcessQueryTest");

    ProcessInstance subProcessInstance = runtimeService.createProcessInstanceQuery().superProcessInstanceId(superProcessInstance.getId()).singleResult();
    assertNotNull(subProcessInstance);
    assertEquals(superProcessInstance.getId(), runtimeService.createProcessInstanceQuery().subProcessInstanceId(subProcessInstance.getId()).singleResult().getId());
  }

  public void testQueryByInvalidSubProcessInstanceId() {
    assertNull(runtimeService.createProcessInstanceQuery().subProcessInstanceId("invalid").singleResult());
    assertEquals(0, runtimeService.createProcessInstanceQuery().subProcessInstanceId("invalid").list().size());
  }

  // Nested subprocess make the query complexer, hence this test
  @Deployment(resources = {"org/camunda/bpm/engine/test/api/runtime/superProcessWithNestedSubProcess.bpmn20.xml",
                           "org/camunda/bpm/engine/test/api/runtime/nestedSubProcess.bpmn20.xml",
                           "org/camunda/bpm/engine/test/api/runtime/subProcess.bpmn20.xml"})
  public void testQueryBySuperProcessInstanceIdNested() {
    ProcessInstance superProcessInstance = runtimeService.startProcessInstanceByKey("nestedSubProcessQueryTest");

    ProcessInstance subProcessInstance = runtimeService.createProcessInstanceQuery().superProcessInstanceId(superProcessInstance.getId()).singleResult();
    assertNotNull(subProcessInstance);

    ProcessInstance nestedSubProcessInstance = runtimeService.createProcessInstanceQuery().superProcessInstanceId(subProcessInstance.getId()).singleResult();
    assertNotNull(nestedSubProcessInstance);
  }

  //Nested subprocess make the query complexer, hence this test
  @Deployment(resources = {"org/camunda/bpm/engine/test/api/runtime/superProcessWithNestedSubProcess.bpmn20.xml",
          "org/camunda/bpm/engine/test/api/runtime/nestedSubProcess.bpmn20.xml",
          "org/camunda/bpm/engine/test/api/runtime/subProcess.bpmn20.xml"})
  public void testQueryBySubProcessInstanceIdNested() {
    ProcessInstance superProcessInstance = runtimeService.startProcessInstanceByKey("nestedSubProcessQueryTest");

    ProcessInstance subProcessInstance = runtimeService.createProcessInstanceQuery().superProcessInstanceId(superProcessInstance.getId()).singleResult();
    assertEquals(superProcessInstance.getId(), runtimeService.createProcessInstanceQuery().subProcessInstanceId(subProcessInstance.getId()).singleResult().getId());

    ProcessInstance nestedSubProcessInstance = runtimeService.createProcessInstanceQuery().superProcessInstanceId(subProcessInstance.getId()).singleResult();
    assertEquals(subProcessInstance.getId(), runtimeService.createProcessInstanceQuery().subProcessInstanceId(nestedSubProcessInstance.getId()).singleResult().getId());
  }

  public void testQueryPaging() {
    assertEquals(4, runtimeService.createProcessInstanceQuery().processDefinitionKey(PROCESS_DEFINITION_KEY).count());
    assertEquals(2, runtimeService.createProcessInstanceQuery().processDefinitionKey(PROCESS_DEFINITION_KEY).listPage(0, 2).size());
    assertEquals(3, runtimeService.createProcessInstanceQuery().processDefinitionKey(PROCESS_DEFINITION_KEY).listPage(1, 3).size());
  }

  public void testQuerySorting() {
    assertEquals(5, runtimeService.createProcessInstanceQuery().orderByProcessInstanceId().asc().list().size());
    assertEquals(5, runtimeService.createProcessInstanceQuery().orderByProcessDefinitionId().asc().list().size());
    assertEquals(5, runtimeService.createProcessInstanceQuery().orderByProcessDefinitionKey().asc().list().size());

    assertEquals(5, runtimeService.createProcessInstanceQuery().orderByProcessInstanceId().desc().list().size());
    assertEquals(5, runtimeService.createProcessInstanceQuery().orderByProcessDefinitionId().desc().list().size());
    assertEquals(5, runtimeService.createProcessInstanceQuery().orderByProcessDefinitionKey().desc().list().size());

    assertEquals(4, runtimeService.createProcessInstanceQuery().processDefinitionKey(PROCESS_DEFINITION_KEY).orderByProcessInstanceId().asc().list().size());
    assertEquals(4, runtimeService.createProcessInstanceQuery().processDefinitionKey(PROCESS_DEFINITION_KEY).orderByProcessInstanceId().desc().list().size());
  }

  public void testQueryInvalidSorting() {
    try {
      runtimeService.createProcessInstanceQuery().orderByProcessDefinitionId().list(); // asc - desc not called -> exception
      fail();
    }catch (ProcessEngineException e) {}
  }

  @Deployment(resources={
    "org/camunda/bpm/engine/test/api/oneTaskProcess.bpmn20.xml"})
  public void testQueryStringVariable() {
    Map<String, Object> vars = new HashMap<String, Object>();
    vars.put("stringVar", "abcdef");
    ProcessInstance processInstance1 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    vars = new HashMap<String, Object>();
    vars.put("stringVar", "abcdef");
    vars.put("stringVar2", "ghijkl");
    ProcessInstance processInstance2 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    vars = new HashMap<String, Object>();
    vars.put("stringVar", "azerty");
    ProcessInstance processInstance3 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    // Test EQUAL on single string variable, should result in 2 matches
    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery().variableValueEquals("stringVar", "abcdef");
    List<ProcessInstance> processInstances = query.list();
    Assert.assertNotNull(processInstances);
    Assert.assertEquals(2, processInstances.size());

    // Test EQUAL on two string variables, should result in single match
    query = runtimeService.createProcessInstanceQuery().variableValueEquals("stringVar", "abcdef").variableValueEquals("stringVar2", "ghijkl");
    ProcessInstance resultInstance = query.singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance2.getId(), resultInstance.getId());

    // Test NOT_EQUAL, should return only 1 resultInstance
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueNotEquals("stringVar", "abcdef").singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance3.getId(), resultInstance.getId());

    // Test GREATER_THAN, should return only matching 'azerty'
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueGreaterThan("stringVar", "abcdef").singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance3.getId(), resultInstance.getId());

    resultInstance = runtimeService.createProcessInstanceQuery().variableValueGreaterThan("stringVar", "z").singleResult();
    Assert.assertNull(resultInstance);

    // Test GREATER_THAN_OR_EQUAL, should return 3 results
    assertEquals(3, runtimeService.createProcessInstanceQuery().variableValueGreaterThanOrEqual("stringVar", "abcdef").count());
    assertEquals(0, runtimeService.createProcessInstanceQuery().variableValueGreaterThanOrEqual("stringVar", "z").count());

    // Test LESS_THAN, should return 2 results
    processInstances = runtimeService.createProcessInstanceQuery().variableValueLessThan("stringVar", "abcdeg").list();
    Assert.assertEquals(2, processInstances.size());
    List<String> expecedIds = Arrays.asList(processInstance1.getId(), processInstance2.getId());
    List<String> ids = new ArrayList<String>(Arrays.asList(processInstances.get(0).getId(), processInstances.get(1).getId()));
    ids.removeAll(expecedIds);
    assertTrue(ids.isEmpty());

    assertEquals(0, runtimeService.createProcessInstanceQuery().variableValueLessThan("stringVar", "abcdef").count());
    assertEquals(3, runtimeService.createProcessInstanceQuery().variableValueLessThanOrEqual("stringVar", "z").count());

    // Test LESS_THAN_OR_EQUAL
    processInstances = runtimeService.createProcessInstanceQuery().variableValueLessThanOrEqual("stringVar", "abcdef").list();
    Assert.assertEquals(2, processInstances.size());
    expecedIds = Arrays.asList(processInstance1.getId(), processInstance2.getId());
    ids = new ArrayList<String>(Arrays.asList(processInstances.get(0).getId(), processInstances.get(1).getId()));
    ids.removeAll(expecedIds);
    assertTrue(ids.isEmpty());

    assertEquals(3, runtimeService.createProcessInstanceQuery().variableValueLessThanOrEqual("stringVar", "z").count());
    assertEquals(0, runtimeService.createProcessInstanceQuery().variableValueLessThanOrEqual("stringVar", "aa").count());

    // Test LIKE
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueLike("stringVar", "azert%").singleResult();
    assertNotNull(resultInstance);
    assertEquals(processInstance3.getId(), resultInstance.getId());

    resultInstance = runtimeService.createProcessInstanceQuery().variableValueLike("stringVar", "%y").singleResult();
    assertNotNull(resultInstance);
    assertEquals(processInstance3.getId(), resultInstance.getId());

    resultInstance = runtimeService.createProcessInstanceQuery().variableValueLike("stringVar", "%zer%").singleResult();
    assertNotNull(resultInstance);
    assertEquals(processInstance3.getId(), resultInstance.getId());

    assertEquals(3, runtimeService.createProcessInstanceQuery().variableValueLike("stringVar", "a%").count());
    assertEquals(0, runtimeService.createProcessInstanceQuery().variableValueLike("stringVar", "%x%").count());

    runtimeService.deleteProcessInstance(processInstance1.getId(), "test");
    runtimeService.deleteProcessInstance(processInstance2.getId(), "test");
    runtimeService.deleteProcessInstance(processInstance3.getId(), "test");
  }

  @Deployment(resources={
    "org/camunda/bpm/engine/test/api/oneTaskProcess.bpmn20.xml"})
  public void testQueryLongVariable() {
    Map<String, Object> vars = new HashMap<String, Object>();
    vars.put("longVar", 12345L);
    ProcessInstance processInstance1 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    vars = new HashMap<String, Object>();
    vars.put("longVar", 12345L);
    vars.put("longVar2", 67890L);
    ProcessInstance processInstance2 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    vars = new HashMap<String, Object>();
    vars.put("longVar", 55555L);
    ProcessInstance processInstance3 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    // Query on single long variable, should result in 2 matches
    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery().variableValueEquals("longVar", 12345L);
    List<ProcessInstance> processInstances = query.list();
    Assert.assertNotNull(processInstances);
    Assert.assertEquals(2, processInstances.size());

    // Query on two long variables, should result in single match
    query = runtimeService.createProcessInstanceQuery().variableValueEquals("longVar", 12345L).variableValueEquals("longVar2", 67890L);
    ProcessInstance resultInstance = query.singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance2.getId(), resultInstance.getId());

    // Query with unexisting variable value
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueEquals("longVar", 999L).singleResult();
    Assert.assertNull(resultInstance);

    // Test NOT_EQUALS
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueNotEquals("longVar", 12345L).singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance3.getId(), resultInstance.getId());

    // Test GREATER_THAN
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueGreaterThan("longVar", 44444L).singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance3.getId(), resultInstance.getId());

    Assert.assertEquals(0, runtimeService.createProcessInstanceQuery().variableValueGreaterThan("longVar", 55555L).count());
    Assert.assertEquals(3, runtimeService.createProcessInstanceQuery().variableValueGreaterThan("longVar",1L).count());

    // Test GREATER_THAN_OR_EQUAL
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueGreaterThanOrEqual("longVar", 44444L).singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance3.getId(), resultInstance.getId());

    resultInstance = runtimeService.createProcessInstanceQuery().variableValueGreaterThanOrEqual("longVar", 55555L).singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance3.getId(), resultInstance.getId());

    Assert.assertEquals(3, runtimeService.createProcessInstanceQuery().variableValueGreaterThanOrEqual("longVar",1L).count());

    // Test LESS_THAN
    processInstances = runtimeService.createProcessInstanceQuery().variableValueLessThan("longVar", 55555L).list();
    Assert.assertEquals(2, processInstances.size());

    List<String> expecedIds = Arrays.asList(processInstance1.getId(), processInstance2.getId());
    List<String> ids = new ArrayList<String>(Arrays.asList(processInstances.get(0).getId(), processInstances.get(1).getId()));
    ids.removeAll(expecedIds);
    assertTrue(ids.isEmpty());

    Assert.assertEquals(0, runtimeService.createProcessInstanceQuery().variableValueLessThan("longVar", 12345L).count());
    Assert.assertEquals(3, runtimeService.createProcessInstanceQuery().variableValueLessThan("longVar",66666L).count());

    // Test LESS_THAN_OR_EQUAL
    processInstances = runtimeService.createProcessInstanceQuery().variableValueLessThanOrEqual("longVar", 55555L).list();
    Assert.assertEquals(3, processInstances.size());

    Assert.assertEquals(0, runtimeService.createProcessInstanceQuery().variableValueLessThanOrEqual("longVar", 12344L).count());

    runtimeService.deleteProcessInstance(processInstance1.getId(), "test");
    runtimeService.deleteProcessInstance(processInstance2.getId(), "test");
    runtimeService.deleteProcessInstance(processInstance3.getId(), "test");
  }

  @Deployment(resources={
    "org/camunda/bpm/engine/test/api/oneTaskProcess.bpmn20.xml"})
  public void testQueryDoubleVariable() {
    Map<String, Object> vars = new HashMap<String, Object>();
    vars.put("doubleVar", 12345.6789);
    ProcessInstance processInstance1 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    vars = new HashMap<String, Object>();
    vars.put("doubleVar", 12345.6789);
    vars.put("doubleVar2", 9876.54321);
    ProcessInstance processInstance2 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    vars = new HashMap<String, Object>();
    vars.put("doubleVar", 55555.5555);
    ProcessInstance processInstance3 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    // Query on single double variable, should result in 2 matches
    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery().variableValueEquals("doubleVar", 12345.6789);
    List<ProcessInstance> processInstances = query.list();
    Assert.assertNotNull(processInstances);
    Assert.assertEquals(2, processInstances.size());

    // Query on two double variables, should result in single value
    query = runtimeService.createProcessInstanceQuery().variableValueEquals("doubleVar", 12345.6789).variableValueEquals("doubleVar2", 9876.54321);
    ProcessInstance resultInstance = query.singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance2.getId(), resultInstance.getId());

    // Query with unexisting variable value
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueEquals("doubleVar", 9999.99).singleResult();
    Assert.assertNull(resultInstance);

    // Test NOT_EQUALS
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueNotEquals("doubleVar", 12345.6789).singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance3.getId(), resultInstance.getId());

    // Test GREATER_THAN
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueGreaterThan("doubleVar", 44444.4444).singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance3.getId(), resultInstance.getId());

    Assert.assertEquals(0, runtimeService.createProcessInstanceQuery().variableValueGreaterThan("doubleVar", 55555.5555).count());
    Assert.assertEquals(3, runtimeService.createProcessInstanceQuery().variableValueGreaterThan("doubleVar",1.234).count());

    // Test GREATER_THAN_OR_EQUAL
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueGreaterThanOrEqual("doubleVar", 44444.4444).singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance3.getId(), resultInstance.getId());

    resultInstance = runtimeService.createProcessInstanceQuery().variableValueGreaterThanOrEqual("doubleVar", 55555.5555).singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance3.getId(), resultInstance.getId());

    Assert.assertEquals(3, runtimeService.createProcessInstanceQuery().variableValueGreaterThanOrEqual("doubleVar",1.234).count());

    // Test LESS_THAN
    processInstances = runtimeService.createProcessInstanceQuery().variableValueLessThan("doubleVar", 55555.5555).list();
    Assert.assertEquals(2, processInstances.size());

    List<String> expecedIds = Arrays.asList(processInstance1.getId(), processInstance2.getId());
    List<String> ids = new ArrayList<String>(Arrays.asList(processInstances.get(0).getId(), processInstances.get(1).getId()));
    ids.removeAll(expecedIds);
    assertTrue(ids.isEmpty());

    Assert.assertEquals(0, runtimeService.createProcessInstanceQuery().variableValueLessThan("doubleVar", 12345.6789).count());
    Assert.assertEquals(3, runtimeService.createProcessInstanceQuery().variableValueLessThan("doubleVar",66666.6666).count());

    // Test LESS_THAN_OR_EQUAL
    processInstances = runtimeService.createProcessInstanceQuery().variableValueLessThanOrEqual("doubleVar", 55555.5555).list();
    Assert.assertEquals(3, processInstances.size());

    Assert.assertEquals(0, runtimeService.createProcessInstanceQuery().variableValueLessThanOrEqual("doubleVar", 12344.6789).count());

    runtimeService.deleteProcessInstance(processInstance1.getId(), "test");
    runtimeService.deleteProcessInstance(processInstance2.getId(), "test");
    runtimeService.deleteProcessInstance(processInstance3.getId(), "test");
  }

  @Deployment(resources={
    "org/camunda/bpm/engine/test/api/oneTaskProcess.bpmn20.xml"})
  public void testQueryIntegerVariable() {
    Map<String, Object> vars = new HashMap<String, Object>();
    vars.put("integerVar", 12345);
    ProcessInstance processInstance1 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    vars = new HashMap<String, Object>();
    vars.put("integerVar", 12345);
    vars.put("integerVar2", 67890);
    ProcessInstance processInstance2 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    vars = new HashMap<String, Object>();
    vars.put("integerVar", 55555);
    ProcessInstance processInstance3 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    // Query on single integer variable, should result in 2 matches
    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery().variableValueEquals("integerVar", 12345);
    List<ProcessInstance> processInstances = query.list();
    Assert.assertNotNull(processInstances);
    Assert.assertEquals(2, processInstances.size());

    // Query on two integer variables, should result in single value
    query = runtimeService.createProcessInstanceQuery().variableValueEquals("integerVar", 12345).variableValueEquals("integerVar2", 67890);
    ProcessInstance resultInstance = query.singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance2.getId(), resultInstance.getId());

    // Query with unexisting variable value
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueEquals("integerVar", 9999).singleResult();
    Assert.assertNull(resultInstance);

    // Test NOT_EQUALS
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueNotEquals("integerVar", 12345).singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance3.getId(), resultInstance.getId());

    // Test GREATER_THAN
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueGreaterThan("integerVar", 44444).singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance3.getId(), resultInstance.getId());

    Assert.assertEquals(0, runtimeService.createProcessInstanceQuery().variableValueGreaterThan("integerVar", 55555).count());
    Assert.assertEquals(3, runtimeService.createProcessInstanceQuery().variableValueGreaterThan("integerVar",1).count());

    // Test GREATER_THAN_OR_EQUAL
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueGreaterThanOrEqual("integerVar", 44444).singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance3.getId(), resultInstance.getId());

    resultInstance = runtimeService.createProcessInstanceQuery().variableValueGreaterThanOrEqual("integerVar", 55555).singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance3.getId(), resultInstance.getId());

    Assert.assertEquals(3, runtimeService.createProcessInstanceQuery().variableValueGreaterThanOrEqual("integerVar",1).count());

    // Test LESS_THAN
    processInstances = runtimeService.createProcessInstanceQuery().variableValueLessThan("integerVar", 55555).list();
    Assert.assertEquals(2, processInstances.size());

    List<String> expecedIds = Arrays.asList(processInstance1.getId(), processInstance2.getId());
    List<String> ids = new ArrayList<String>(Arrays.asList(processInstances.get(0).getId(), processInstances.get(1).getId()));
    ids.removeAll(expecedIds);
    assertTrue(ids.isEmpty());

    Assert.assertEquals(0, runtimeService.createProcessInstanceQuery().variableValueLessThan("integerVar", 12345).count());
    Assert.assertEquals(3, runtimeService.createProcessInstanceQuery().variableValueLessThan("integerVar",66666).count());

    // Test LESS_THAN_OR_EQUAL
    processInstances = runtimeService.createProcessInstanceQuery().variableValueLessThanOrEqual("integerVar", 55555).list();
    Assert.assertEquals(3, processInstances.size());

    Assert.assertEquals(0, runtimeService.createProcessInstanceQuery().variableValueLessThanOrEqual("integerVar", 12344).count());

    runtimeService.deleteProcessInstance(processInstance1.getId(), "test");
    runtimeService.deleteProcessInstance(processInstance2.getId(), "test");
    runtimeService.deleteProcessInstance(processInstance3.getId(), "test");
  }

  @Deployment(resources={
    "org/camunda/bpm/engine/test/api/oneTaskProcess.bpmn20.xml"})
  public void testQueryShortVariable() {
    Map<String, Object> vars = new HashMap<String, Object>();
    short shortVar = 1234;
    vars.put("shortVar", shortVar);
    ProcessInstance processInstance1 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    short shortVar2 = 6789;
    vars = new HashMap<String, Object>();
    vars.put("shortVar", shortVar);
    vars.put("shortVar2", shortVar2);
    ProcessInstance processInstance2 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    vars = new HashMap<String, Object>();
    vars.put("shortVar", (short)5555);
    ProcessInstance processInstance3 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    // Query on single short variable, should result in 2 matches
    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery().variableValueEquals("shortVar", shortVar);
    List<ProcessInstance> processInstances = query.list();
    Assert.assertNotNull(processInstances);
    Assert.assertEquals(2, processInstances.size());

    // Query on two short variables, should result in single value
    query = runtimeService.createProcessInstanceQuery().variableValueEquals("shortVar", shortVar).variableValueEquals("shortVar2", shortVar2);
    ProcessInstance resultInstance = query.singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance2.getId(), resultInstance.getId());

    // Query with unexisting variable value
    short unexistingValue = (short)9999;
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueEquals("shortVar", unexistingValue).singleResult();
    Assert.assertNull(resultInstance);

    // Test NOT_EQUALS
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueNotEquals("shortVar", (short)1234).singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance3.getId(), resultInstance.getId());

    // Test GREATER_THAN
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueGreaterThan("shortVar", (short)4444).singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance3.getId(), resultInstance.getId());

    Assert.assertEquals(0, runtimeService.createProcessInstanceQuery().variableValueGreaterThan("shortVar", (short)5555).count());
    Assert.assertEquals(3, runtimeService.createProcessInstanceQuery().variableValueGreaterThan("shortVar",(short)1).count());

    // Test GREATER_THAN_OR_EQUAL
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueGreaterThanOrEqual("shortVar", (short)4444).singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance3.getId(), resultInstance.getId());

    resultInstance = runtimeService.createProcessInstanceQuery().variableValueGreaterThanOrEqual("shortVar", (short)5555).singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance3.getId(), resultInstance.getId());

    Assert.assertEquals(3, runtimeService.createProcessInstanceQuery().variableValueGreaterThanOrEqual("shortVar",(short)1).count());

    // Test LESS_THAN
    processInstances = runtimeService.createProcessInstanceQuery().variableValueLessThan("shortVar", (short)5555).list();
    Assert.assertEquals(2, processInstances.size());

    List<String> expecedIds = Arrays.asList(processInstance1.getId(), processInstance2.getId());
    List<String> ids = new ArrayList<String>(Arrays.asList(processInstances.get(0).getId(), processInstances.get(1).getId()));
    ids.removeAll(expecedIds);
    assertTrue(ids.isEmpty());

    Assert.assertEquals(0, runtimeService.createProcessInstanceQuery().variableValueLessThan("shortVar", (short)1234).count());
    Assert.assertEquals(3, runtimeService.createProcessInstanceQuery().variableValueLessThan("shortVar",(short)6666).count());

    // Test LESS_THAN_OR_EQUAL
    processInstances = runtimeService.createProcessInstanceQuery().variableValueLessThanOrEqual("shortVar", (short)5555).list();
    Assert.assertEquals(3, processInstances.size());

    Assert.assertEquals(0, runtimeService.createProcessInstanceQuery().variableValueLessThanOrEqual("shortVar", (short)1233).count());

    runtimeService.deleteProcessInstance(processInstance1.getId(), "test");
    runtimeService.deleteProcessInstance(processInstance2.getId(), "test");
    runtimeService.deleteProcessInstance(processInstance3.getId(), "test");
  }

  @Deployment(resources={
    "org/camunda/bpm/engine/test/api/oneTaskProcess.bpmn20.xml"})
  public void testQueryDateVariable() throws Exception {
    Map<String, Object> vars = new HashMap<String, Object>();
    Date date1 = Calendar.getInstance().getTime();
    vars.put("dateVar", date1);

    ProcessInstance processInstance1 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    Date date2 = Calendar.getInstance().getTime();
    vars = new HashMap<String, Object>();
    vars.put("dateVar", date1);
    vars.put("dateVar2", date2);
    ProcessInstance processInstance2 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    Calendar nextYear = Calendar.getInstance();
    nextYear.add(Calendar.YEAR, 1);
    vars = new HashMap<String, Object>();
    vars.put("dateVar",nextYear.getTime());
    ProcessInstance processInstance3 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    Calendar nextMonth = Calendar.getInstance();
    nextMonth.add(Calendar.MONTH, 1);

    Calendar twoYearsLater = Calendar.getInstance();
    twoYearsLater.add(Calendar.YEAR, 2);

    Calendar oneYearAgo = Calendar.getInstance();
    oneYearAgo.add(Calendar.YEAR, -1);

    // Query on single short variable, should result in 2 matches
    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery().variableValueEquals("dateVar", date1);
    List<ProcessInstance> processInstances = query.list();
    Assert.assertNotNull(processInstances);
    Assert.assertEquals(2, processInstances.size());

    // Query on two short variables, should result in single value
    query = runtimeService.createProcessInstanceQuery().variableValueEquals("dateVar", date1).variableValueEquals("dateVar2", date2);
    ProcessInstance resultInstance = query.singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance2.getId(), resultInstance.getId());

    // Query with unexisting variable value
    Date unexistingDate = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss").parse("01/01/1989 12:00:00");
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueEquals("dateVar", unexistingDate).singleResult();
    Assert.assertNull(resultInstance);

    // Test NOT_EQUALS
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueNotEquals("dateVar", date1).singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance3.getId(), resultInstance.getId());

    // Test GREATER_THAN
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueGreaterThan("dateVar", nextMonth.getTime()).singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance3.getId(), resultInstance.getId());

    Assert.assertEquals(0, runtimeService.createProcessInstanceQuery().variableValueGreaterThan("dateVar", nextYear.getTime()).count());
    Assert.assertEquals(3, runtimeService.createProcessInstanceQuery().variableValueGreaterThan("dateVar", oneYearAgo.getTime()).count());

    // Test GREATER_THAN_OR_EQUAL
    resultInstance = runtimeService.createProcessInstanceQuery().variableValueGreaterThanOrEqual("dateVar", nextMonth.getTime()).singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance3.getId(), resultInstance.getId());

    resultInstance = runtimeService.createProcessInstanceQuery().variableValueGreaterThanOrEqual("dateVar", nextYear.getTime()).singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance3.getId(), resultInstance.getId());

    Assert.assertEquals(3, runtimeService.createProcessInstanceQuery().variableValueGreaterThanOrEqual("dateVar",oneYearAgo.getTime()).count());

    // Test LESS_THAN
    processInstances = runtimeService.createProcessInstanceQuery().variableValueLessThan("dateVar", nextYear.getTime()).list();
    Assert.assertEquals(2, processInstances.size());

    List<String> expecedIds = Arrays.asList(processInstance1.getId(), processInstance2.getId());
    List<String> ids = new ArrayList<String>(Arrays.asList(processInstances.get(0).getId(), processInstances.get(1).getId()));
    ids.removeAll(expecedIds);
    assertTrue(ids.isEmpty());

    Assert.assertEquals(0, runtimeService.createProcessInstanceQuery().variableValueLessThan("dateVar", date1).count());
    Assert.assertEquals(3, runtimeService.createProcessInstanceQuery().variableValueLessThan("dateVar", twoYearsLater.getTime()).count());

    // Test LESS_THAN_OR_EQUAL
    processInstances = runtimeService.createProcessInstanceQuery().variableValueLessThanOrEqual("dateVar", nextYear.getTime()).list();
    Assert.assertEquals(3, processInstances.size());

    Assert.assertEquals(0, runtimeService.createProcessInstanceQuery().variableValueLessThanOrEqual("dateVar", oneYearAgo.getTime()).count());

    runtimeService.deleteProcessInstance(processInstance1.getId(), "test");
    runtimeService.deleteProcessInstance(processInstance2.getId(), "test");
    runtimeService.deleteProcessInstance(processInstance3.getId(), "test");
  }

  @Deployment(resources={
    "org/camunda/bpm/engine/test/api/oneTaskProcess.bpmn20.xml"})
  public void testBooleanVariable() throws Exception {

    // TEST EQUALS
    HashMap<String, Object> vars = new HashMap<String, Object>();
    vars.put("booleanVar", true);
    ProcessInstance processInstance1 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    vars = new HashMap<String, Object>();
    vars.put("booleanVar", false);
    ProcessInstance processInstance2 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    List<ProcessInstance> instances = runtimeService.createProcessInstanceQuery().variableValueEquals("booleanVar", true).list();

    assertNotNull(instances);
    assertEquals(1, instances.size());
    assertEquals(processInstance1.getId(), instances.get(0).getId());

    instances = runtimeService.createProcessInstanceQuery().variableValueEquals("booleanVar", false).list();

    assertNotNull(instances);
    assertEquals(1, instances.size());
    assertEquals(processInstance2.getId(), instances.get(0).getId());

    // TEST NOT_EQUALS
    instances = runtimeService.createProcessInstanceQuery().variableValueNotEquals("booleanVar", true).list();

    assertNotNull(instances);
    assertEquals(1, instances.size());
    assertEquals(processInstance2.getId(), instances.get(0).getId());

    instances = runtimeService.createProcessInstanceQuery().variableValueNotEquals("booleanVar", false).list();

    assertNotNull(instances);
    assertEquals(1, instances.size());
    assertEquals(processInstance1.getId(), instances.get(0).getId());

    // Test unsupported operations
    try {
      runtimeService.createProcessInstanceQuery().variableValueGreaterThan("booleanVar", true);
      fail("Excetion expected");
    } catch(ProcessEngineException ae) {
      assertTextPresent("Booleans and null cannot be used in 'greater than' condition", ae.getMessage());
    }

    try {
      runtimeService.createProcessInstanceQuery().variableValueGreaterThanOrEqual("booleanVar", true);
      fail("Excetion expected");
    } catch(ProcessEngineException ae) {
      assertTextPresent("Booleans and null cannot be used in 'greater than or equal' condition", ae.getMessage());
    }

    try {
      runtimeService.createProcessInstanceQuery().variableValueLessThan("booleanVar", true);
      fail("Excetion expected");
    } catch(ProcessEngineException ae) {
      assertTextPresent("Booleans and null cannot be used in 'less than' condition", ae.getMessage());
    }

    try {
      runtimeService.createProcessInstanceQuery().variableValueLessThanOrEqual("booleanVar", true);
      fail("Excetion expected");
    } catch(ProcessEngineException ae) {
      assertTextPresent("Booleans and null cannot be used in 'less than or equal' condition", ae.getMessage());
    }

    runtimeService.deleteProcessInstance(processInstance1.getId(), "test");
    runtimeService.deleteProcessInstance(processInstance2.getId(), "test");
  }

  @Deployment(resources={
    "org/camunda/bpm/engine/test/api/oneTaskProcess.bpmn20.xml"})
  public void testQueryVariablesUpdatedToNullValue() {
    // Start process instance with different types of variables
    Map<String, Object> variables = new HashMap<String, Object>();
    variables.put("longVar", 928374L);
    variables.put("shortVar", (short) 123);
    variables.put("integerVar", 1234);
    variables.put("stringVar", "coca-cola");
    variables.put("dateVar", new Date());
    variables.put("booleanVar", true);
    variables.put("nullVar", null);
    ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("oneTaskProcess", variables);

    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery()
      .variableValueEquals("longVar", null)
      .variableValueEquals("shortVar", null)
      .variableValueEquals("integerVar", null)
      .variableValueEquals("stringVar", null)
      .variableValueEquals("booleanVar", null)
      .variableValueEquals("dateVar", null);

    ProcessInstanceQuery notQuery = runtimeService.createProcessInstanceQuery()
    .variableValueNotEquals("longVar", null)
    .variableValueNotEquals("shortVar", null)
    .variableValueNotEquals("integerVar", null)
    .variableValueNotEquals("stringVar", null)
    .variableValueNotEquals("booleanVar", null)
    .variableValueNotEquals("dateVar", null);

    assertNull(query.singleResult());
    assertNotNull(notQuery.singleResult());

    // Set all existing variables values to null
    runtimeService.setVariable(processInstance.getId(), "longVar", null);
    runtimeService.setVariable(processInstance.getId(), "shortVar", null);
    runtimeService.setVariable(processInstance.getId(), "integerVar", null);
    runtimeService.setVariable(processInstance.getId(), "stringVar", null);
    runtimeService.setVariable(processInstance.getId(), "dateVar", null);
    runtimeService.setVariable(processInstance.getId(), "nullVar", null);
    runtimeService.setVariable(processInstance.getId(), "booleanVar", null);

    Execution queryResult = query.singleResult();
    assertNotNull(queryResult);
    assertEquals(processInstance.getId(), queryResult.getId());
    assertNull(notQuery.singleResult());
  }

  @Deployment(resources={
    "org/camunda/bpm/engine/test/api/oneTaskProcess.bpmn20.xml"})
  public void testQueryNullVariable() throws Exception {
    Map<String, Object> vars = new HashMap<String, Object>();
    vars.put("nullVar", null);
    ProcessInstance processInstance1 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    vars = new HashMap<String, Object>();
    vars.put("nullVar", "notnull");
    ProcessInstance processInstance2 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    vars = new HashMap<String, Object>();
    vars.put("nullVarLong", "notnull");
    ProcessInstance processInstance3 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    vars = new HashMap<String, Object>();
    vars.put("nullVarDouble", "notnull");
    ProcessInstance processInstance4 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    vars = new HashMap<String, Object>();
    vars.put("nullVarByte", "testbytes".getBytes());
    ProcessInstance processInstance5 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    // Query on null value, should return one value
    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery().variableValueEquals("nullVar", null);
    List<ProcessInstance> processInstances = query.list();
    Assert.assertNotNull(processInstances);
    Assert.assertEquals(1, processInstances.size());
    Assert.assertEquals(processInstance1.getId(), processInstances.get(0).getId());

    // Test NOT_EQUALS null
    Assert.assertEquals(1, runtimeService.createProcessInstanceQuery().variableValueNotEquals("nullVar", null).count());
    Assert.assertEquals(1, runtimeService.createProcessInstanceQuery().variableValueNotEquals("nullVarLong", null).count());
    Assert.assertEquals(1, runtimeService.createProcessInstanceQuery().variableValueNotEquals("nullVarDouble", null).count());
    // When a byte-array refrence is present, the variable is not considered null
    Assert.assertEquals(1, runtimeService.createProcessInstanceQuery().variableValueNotEquals("nullVarByte", null).count());

    // All other variable queries with null should throw exception
    try {
      runtimeService.createProcessInstanceQuery().variableValueGreaterThan("nullVar", null);
      fail("Excetion expected");
    } catch(ProcessEngineException ae) {
      assertTextPresent("Booleans and null cannot be used in 'greater than' condition", ae.getMessage());
    }

    try {
      runtimeService.createProcessInstanceQuery().variableValueGreaterThanOrEqual("nullVar", null);
      fail("Excetion expected");
    } catch(ProcessEngineException ae) {
      assertTextPresent("Booleans and null cannot be used in 'greater than or equal' condition", ae.getMessage());
    }

    try {
      runtimeService.createProcessInstanceQuery().variableValueLessThan("nullVar", null);
      fail("Excetion expected");
    } catch(ProcessEngineException ae) {
      assertTextPresent("Booleans and null cannot be used in 'less than' condition", ae.getMessage());
    }

    try {
      runtimeService.createProcessInstanceQuery().variableValueLessThanOrEqual("nullVar", null);
      fail("Excetion expected");
    } catch(ProcessEngineException ae) {
      assertTextPresent("Booleans and null cannot be used in 'less than or equal' condition", ae.getMessage());
    }

    try {
      runtimeService.createProcessInstanceQuery().variableValueLike("nullVar", null);
      fail("Excetion expected");
    } catch(ProcessEngineException ae) {
      assertTextPresent("Booleans and null cannot be used in 'like' condition", ae.getMessage());
    }

    runtimeService.deleteProcessInstance(processInstance1.getId(), "test");
    runtimeService.deleteProcessInstance(processInstance2.getId(), "test");
    runtimeService.deleteProcessInstance(processInstance3.getId(), "test");
    runtimeService.deleteProcessInstance(processInstance4.getId(), "test");
    runtimeService.deleteProcessInstance(processInstance5.getId(), "test");
  }

  @Deployment(resources={
    "org/camunda/bpm/engine/test/api/oneTaskProcess.bpmn20.xml"})
  public void testQueryInvalidTypes() throws Exception {
    Map<String, Object> vars = new HashMap<String, Object>();
    vars.put("bytesVar", "test".getBytes());
    vars.put("serializableVar",new DummySerializable());

    ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    try {
      runtimeService.createProcessInstanceQuery()
        .variableValueEquals("bytesVar", "test".getBytes())
        .list();
      fail("Expected exception");
    } catch(ProcessEngineException ae) {
      assertTextPresent("Variables of type ByteArray cannot be used to query", ae.getMessage());
    }

    try {
      runtimeService.createProcessInstanceQuery()
        .variableValueEquals("serializableVar", new DummySerializable())
        .list();
      fail("Expected exception");
    } catch(ProcessEngineException ae) {
      assertTextPresent("Object values cannot be used to query", ae.getMessage());
    }

    runtimeService.deleteProcessInstance(processInstance.getId(), "test");
  }

  public void testQueryVariablesNullNameArgument() {
    try {
      runtimeService.createProcessInstanceQuery().variableValueEquals(null, "value");
      fail("Expected exception");
    } catch(ProcessEngineException ae) {
      assertTextPresent("name is null", ae.getMessage());
    }
    try {
      runtimeService.createProcessInstanceQuery().variableValueNotEquals(null, "value");
      fail("Expected exception");
    } catch(ProcessEngineException ae) {
      assertTextPresent("name is null", ae.getMessage());
    }
    try {
      runtimeService.createProcessInstanceQuery().variableValueGreaterThan(null, "value");
      fail("Expected exception");
    } catch(ProcessEngineException ae) {
      assertTextPresent("name is null", ae.getMessage());
    }
    try {
      runtimeService.createProcessInstanceQuery().variableValueGreaterThanOrEqual(null, "value");
      fail("Expected exception");
    } catch(ProcessEngineException ae) {
      assertTextPresent("name is null", ae.getMessage());
    }
    try {
      runtimeService.createProcessInstanceQuery().variableValueLessThan(null, "value");
      fail("Expected exception");
    } catch(ProcessEngineException ae) {
      assertTextPresent("name is null", ae.getMessage());
    }
    try {
      runtimeService.createProcessInstanceQuery().variableValueLessThanOrEqual(null, "value");
      fail("Expected exception");
    } catch(ProcessEngineException ae) {
      assertTextPresent("name is null", ae.getMessage());
    }
    try {
      runtimeService.createProcessInstanceQuery().variableValueLike(null, "value");
      fail("Expected exception");
    } catch(ProcessEngineException ae) {
      assertTextPresent("name is null", ae.getMessage());
    }
  }

  @Deployment(resources={
    "org/camunda/bpm/engine/test/api/oneTaskProcess.bpmn20.xml"})
  public void testQueryAllVariableTypes() throws Exception {
    Map<String, Object> vars = new HashMap<String, Object>();
    vars.put("nullVar", null);
    vars.put("stringVar", "string");
    vars.put("longVar", 10L);
    vars.put("doubleVar", 1.2);
    vars.put("integerVar", 1234);
    vars.put("booleanVar", true);
    vars.put("shortVar", (short) 123);

    ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery()
      .variableValueEquals("nullVar", null)
      .variableValueEquals("stringVar", "string")
      .variableValueEquals("longVar", 10L)
      .variableValueEquals("doubleVar", 1.2)
      .variableValueEquals("integerVar", 1234)
      .variableValueEquals("booleanVar", true)
      .variableValueEquals("shortVar", (short) 123);

    List<ProcessInstance> processInstances = query.list();
    Assert.assertNotNull(processInstances);
    Assert.assertEquals(1, processInstances.size());
    Assert.assertEquals(processInstance.getId(), processInstances.get(0).getId());

    runtimeService.deleteProcessInstance(processInstance.getId(), "test");
  }

  @Deployment(resources={
    "org/camunda/bpm/engine/test/api/oneTaskProcess.bpmn20.xml"})
    public void testClashingValues() throws Exception {
      Map<String, Object> vars = new HashMap<String, Object>();
      vars.put("var", 1234L);

      ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);

      Map<String, Object> vars2 = new HashMap<String, Object>();
      vars2.put("var", 1234);

      ProcessInstance processInstance2 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars2);

      List<ProcessInstance> foundInstances = runtimeService.createProcessInstanceQuery()
      .processDefinitionKey("oneTaskProcess")
      .variableValueEquals("var", 1234L)
      .list();

      assertEquals(1, foundInstances.size());
      assertEquals(processInstance.getId(), foundInstances.get(0).getId());

      runtimeService.deleteProcessInstance(processInstance.getId(), "test");
      runtimeService.deleteProcessInstance(processInstance2.getId(), "test");
  }

  public void testQueryByProcessInstanceIds() {
    Set<String> processInstanceIds = new HashSet<String>(this.processInstanceIds);

    // start an instance that will not be part of the query
    runtimeService.startProcessInstanceByKey("oneTaskProcess2", "2");

    ProcessInstanceQuery processInstanceQuery = runtimeService.createProcessInstanceQuery().processInstanceIds(processInstanceIds);
    assertEquals(5, processInstanceQuery.count());

    List<ProcessInstance> processInstances = processInstanceQuery.list();
    assertNotNull(processInstances);
    assertEquals(5, processInstances.size());

    for (ProcessInstance processInstance : processInstances) {
      assertTrue(processInstanceIds.contains(processInstance.getId()));
    }
  }

  public void testQueryByProcessInstanceIdsEmpty() {
    try {
      runtimeService.createProcessInstanceQuery().processInstanceIds(new HashSet<String>());
      fail("ProcessEngineException expected");
    } catch (ProcessEngineException re) {
      assertTextPresent("Set of process instance ids is empty", re.getMessage());
    }
  }

  public void testQueryByProcessInstanceIdsNull() {
    try {
      runtimeService.createProcessInstanceQuery().processInstanceIds(null);
      fail("ProcessEngineException expected");
    } catch (ProcessEngineException re) {
      assertTextPresent("Set of process instance ids is null", re.getMessage());
    }
  }

  public void testQueryByActive() throws Exception {
    ProcessInstanceQuery processInstanceQuery = runtimeService.createProcessInstanceQuery();

    assertEquals(5, processInstanceQuery.active().count());

    repositoryService.suspendProcessDefinitionByKey("oneTaskProcess");

    assertEquals(5, processInstanceQuery.active().count());

    repositoryService.suspendProcessDefinitionByKey("oneTaskProcess", true, null);

    assertEquals(1, processInstanceQuery.active().count());

    // db cleanup
    TestHelper.clearOpLog(processEngineConfiguration);
  }

  public void testQueryBySuspeded() throws Exception {
    ProcessInstanceQuery processInstanceQuery = runtimeService.createProcessInstanceQuery();

    assertEquals(0, processInstanceQuery.suspended().count());

    repositoryService.suspendProcessDefinitionByKey("oneTaskProcess");

    assertEquals(0, processInstanceQuery.suspended().count());

    repositoryService.suspendProcessDefinitionByKey("oneTaskProcess", true, null);

    assertEquals(4, processInstanceQuery.suspended().count());

    // db cleanup
    TestHelper.clearOpLog(processEngineConfiguration);
}

  public void testNativeQuery() {
    // just test that the query will be constructed and executed, details are tested in the TaskQueryTest
    assertEquals("ACT_RU_EXECUTION", managementService.getTableName(ProcessInstance.class));

    long piCount = runtimeService.createProcessInstanceQuery().count();

    assertEquals(piCount, runtimeService.createNativeProcessInstanceQuery().sql("SELECT * FROM " + managementService.getTableName(ProcessInstance.class)).list().size());
    assertEquals(piCount, runtimeService.createNativeProcessInstanceQuery().sql("SELECT count(*) FROM " + managementService.getTableName(ProcessInstance.class)).count());
  }

  public void testNativeQueryPaging() {
    assertEquals(5, runtimeService.createNativeProcessInstanceQuery().sql("SELECT * FROM " + managementService.getTableName(ProcessInstance.class)).listPage(0, 5).size());
  }

  @Deployment(resources={"org/camunda/bpm/engine/test/api/runtime/failingProcessCreateOneIncident.bpmn20.xml"})
  public void testQueryByIncidentId() {
    ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("failingProcess");

    executeAvailableJobs();

    List<Incident> incidentList = runtimeService.createIncidentQuery().list();
    assertEquals(1, incidentList.size());

    Incident incident = runtimeService.createIncidentQuery().processInstanceId(processInstance.getId()).singleResult();

    List<ProcessInstance> processInstanceList = runtimeService
        .createProcessInstanceQuery()
        .incidentId(incident.getId()).list();

    assertEquals(1, processInstanceList.size());
  }

  public void testQueryByInvalidIncidentId() {
    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery();

    assertEquals(0, query.incidentId("invalid").count());

    try {
      query.incidentId(null);
      fail();
    } catch (ProcessEngineException e) {}
  }

  @Deployment(resources={"org/camunda/bpm/engine/test/api/runtime/failingProcessCreateOneIncident.bpmn20.xml"})
  public void testQueryByIncidentType() {
    ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("failingProcess");

    executeAvailableJobs();

    List<Incident> incidentList = runtimeService.createIncidentQuery().list();
    assertEquals(1, incidentList.size());

    Incident incident = runtimeService.createIncidentQuery().processInstanceId(processInstance.getId()).singleResult();

    List<ProcessInstance> processInstanceList = runtimeService
        .createProcessInstanceQuery()
        .incidentType(incident.getIncidentType()).list();

    assertEquals(1, processInstanceList.size());
  }

  public void testQueryByInvalidIncidentType() {
    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery();

    assertEquals(0, query.incidentType("invalid").count());

    try {
      query.incidentType(null);
      fail();
    } catch (ProcessEngineException e) {}
  }

  @Deployment(resources={"org/camunda/bpm/engine/test/api/runtime/failingProcessCreateOneIncident.bpmn20.xml"})
  public void testQueryByIncidentMessage() {
    ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("failingProcess");

    executeAvailableJobs();

    List<Incident> incidentList = runtimeService.createIncidentQuery().list();
    assertEquals(1, incidentList.size());

    Incident incident = runtimeService.createIncidentQuery().processInstanceId(processInstance.getId()).singleResult();

    List<ProcessInstance> processInstanceList = runtimeService
        .createProcessInstanceQuery()
        .incidentMessage(incident.getIncidentMessage()).list();

    assertEquals(1, processInstanceList.size());
  }

  public void testQueryByInvalidIncidentMessage() {
    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery();

    assertEquals(0, query.incidentMessage("invalid").count());

    try {
      query.incidentMessage(null);
      fail();
    } catch (ProcessEngineException e) {}
  }

  @Deployment(resources={"org/camunda/bpm/engine/test/api/runtime/failingProcessCreateOneIncident.bpmn20.xml"})
  public void testQueryByIncidentMessageLike() {
    runtimeService.startProcessInstanceByKey("failingProcess");

    executeAvailableJobs();

    List<Incident> incidentList = runtimeService.createIncidentQuery().list();
    assertEquals(1, incidentList.size());

    List<ProcessInstance> processInstanceList = runtimeService
        .createProcessInstanceQuery()
        .incidentMessageLike("%exception%").list();

    assertEquals(1, processInstanceList.size());
  }

  public void testQueryByInvalidIncidentMessageLike() {
    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery();

    assertEquals(0, query.incidentMessageLike("invalid").count());

    try {
      query.incidentMessageLike(null);
      fail();
    } catch (ProcessEngineException e) {}
  }

  @Deployment(resources={"org/camunda/bpm/engine/test/api/runtime/failingSubProcessCreateOneIncident.bpmn20.xml"})
  public void testQueryByIncidentIdInSubProcess() {
    ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("failingSubProcess");

    executeAvailableJobs();

    List<Incident> incidentList = runtimeService.createIncidentQuery().list();
    assertEquals(1, incidentList.size());

    Incident incident = runtimeService.createIncidentQuery().processInstanceId(processInstance.getId()).singleResult();

    List<ProcessInstance> processInstanceList = runtimeService
        .createProcessInstanceQuery()
        .incidentId(incident.getId()).list();

    assertEquals(1, processInstanceList.size());
    assertEquals(processInstance.getId(), processInstanceList.get(0).getId());
  }

  @Deployment(resources={"org/camunda/bpm/engine/test/api/runtime/failingSubProcessCreateOneIncident.bpmn20.xml"})
  public void testQueryByIncidentTypeInSubProcess() {
    ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("failingSubProcess");

    executeAvailableJobs();

    List<Incident> incidentList = runtimeService.createIncidentQuery().list();
    assertEquals(1, incidentList.size());

    Incident incident = runtimeService.createIncidentQuery().processInstanceId(processInstance.getId()).singleResult();

    List<ProcessInstance> processInstanceList = runtimeService
        .createProcessInstanceQuery()
        .incidentType(incident.getIncidentType()).list();

    assertEquals(1, processInstanceList.size());
    assertEquals(processInstance.getId(), processInstanceList.get(0).getId());
  }

  @Deployment(resources={"org/camunda/bpm/engine/test/api/runtime/failingSubProcessCreateOneIncident.bpmn20.xml"})
  public void testQueryByIncidentMessageInSubProcess() {
    ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("failingSubProcess");

    executeAvailableJobs();

    List<Incident> incidentList = runtimeService.createIncidentQuery().list();
    assertEquals(1, incidentList.size());

    Incident incident = runtimeService.createIncidentQuery().processInstanceId(processInstance.getId()).singleResult();

    List<ProcessInstance> processInstanceList = runtimeService
        .createProcessInstanceQuery()
        .incidentMessage(incident.getIncidentMessage()).list();

    assertEquals(1, processInstanceList.size());
    assertEquals(processInstance.getId(), processInstanceList.get(0).getId());
  }

  @Deployment(resources={"org/camunda/bpm/engine/test/api/runtime/failingSubProcessCreateOneIncident.bpmn20.xml"})
  public void testQueryByIncidentMessageLikeInSubProcess() {
    ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("failingSubProcess");

    executeAvailableJobs();

    List<Incident> incidentList = runtimeService.createIncidentQuery().list();
    assertEquals(1, incidentList.size());

    List<ProcessInstance> processInstanceList = runtimeService
        .createProcessInstanceQuery()
        .incidentMessageLike("%exception%").list();

    assertEquals(1, processInstanceList.size());
    assertEquals(processInstance.getId(), processInstanceList.get(0).getId());
  }

  @Deployment(resources = {
      "org/camunda/bpm/engine/test/api/cmmn/oneProcessTaskCase.cmmn",
      "org/camunda/bpm/engine/test/api/oneTaskProcess.bpmn20.xml"
    })
  public void testQueryByCaseInstanceId() {
    String caseInstanceId = caseService
      .withCaseDefinitionByKey("oneProcessTaskCase")
      .create()
      .getId();

    String processTaskId = caseService
        .createCaseExecutionQuery()
        .activityId("PI_ProcessTask_1")
        .singleResult()
        .getId();

    caseService
      .withCaseExecution(processTaskId)
      .manualStart();

    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery();

    query.caseInstanceId(caseInstanceId);

    assertEquals(1, query.count());

    List<ProcessInstance> result = query.list();
    assertEquals(1, result.size());

    ProcessInstance processInstance = result.get(0);
    assertEquals(caseInstanceId, processInstance.getCaseInstanceId());
  }

  public void testQueryByInvalidCaseInstanceId() {
    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery();

    query.caseInstanceId("invalid");

    assertEquals(0, query.count());

    try {
      query.caseInstanceId(null);
      fail("The passed case instance should not be null.");
    } catch (Exception e) {}

  }

  @Deployment(resources = {
      "org/camunda/bpm/engine/test/api/runtime/superCase.cmmn",
      "org/camunda/bpm/engine/test/api/runtime/superProcessWithCallActivityInsideSubProcess.bpmn20.xml",
      "org/camunda/bpm/engine/test/api/runtime/subProcess.bpmn20.xml"
    })
  public void testQueryByCaseInstanceIdHierarchy() {
    String caseInstanceId = caseService
      .withCaseDefinitionByKey("oneProcessTaskCase")
      .businessKey("aBusinessKey")
      .create()
      .getId();

    String processTaskId = caseService
        .createCaseExecutionQuery()
        .activityId("PI_ProcessTask_1")
        .singleResult()
        .getId();

    caseService
      .withCaseExecution(processTaskId)
      .manualStart();

    ProcessInstanceQuery query = runtimeService.createProcessInstanceQuery();

    query.caseInstanceId(caseInstanceId);

    assertEquals(2, query.count());

    List<ProcessInstance> result = query.list();
    assertEquals(2, result.size());

    ProcessInstance firstProcessInstance = result.get(0);
    assertEquals(caseInstanceId, firstProcessInstance.getCaseInstanceId());

    ProcessInstance secondProcessInstance = result.get(1);
    assertEquals(caseInstanceId, secondProcessInstance.getCaseInstanceId());
  }

}
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