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Assertions

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Instance: isActive

Assert that a process instance is currently ‘active’, so neither suspended nor ended: 
assertThat(processInstance).isActive();

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Instance: isEnded

Assert that a process instance is already ended: 
assertThat(processInstance).isEnded();

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Instance: isNotEnded

Assert that a process instance is not ended: 
assertThat(processInstance).isNotEnded();

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Instance: isStarted

Assert that a process instance is started: 
assertThat(processInstance).isStarted();

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Instance: isSuspended

Assert that a process instance is suspended: 
assertThat(processInstance).isSuspended();

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Instance: hasPassed

Assert that a process instance has passed a specified activity: 
assertThat(processInstance).hasPassed("edit");
Assert that a process instance has passed several specified activities: 
assertThat(processInstance).hasPassed("edit", "correct");

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Instance: hasPassedInOrder

Assert that a process instance has passed several specified activities exactly in the given order: 
assertThat(processInstance).hasPassedInOrder("edit", "review", "correct");
You can even assert that a specific activity has been passed several times: 
assertThat(processInstance).hasPassedInOrder("edit", "review", "correct", "review", "correct", "review", "publish");
It doesn’t matter whether other activities have been passed in between those specified activities. Everything that matters is that the order is correct. So in the example just given, this more minimalistic assertion would also pass: 
assertThat(processInstance).hasPassedInOrder("edit", "review", "publish");

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Instance: hasNotPassed

Assert that a process instance has not passed a specified activity: 
assertThat(processInstance).hasNotPassed("edit");
Assert that a process instance has not passed any of several specified activities: 
assertThat(processInstance).hasNotPassed("edit", "correct");

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Instance: hasVariables

Assert that a process instance holds at least one process variable: 
assertThat(processInstance).hasVariables();
Assert that a process instance holds - aside potential other variables - one or more specified process variables: 
assertThat(processInstance)
  .hasVariables("approved")
  .hasVariables("jobAnnouncementId", "approved");

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Instance: hasNoVariables

Assert that a process instance holds no process variables at all: 
assertThat(processInstance).hasNoVariables();

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Instance: hasProcessDefinitionKey

Assert that a process instance is based on a specific process definition: 
assertThat(processInstance).hasProcessDefinitionKey("myProcessDefinitionKey");

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Instance: hasBusinessKey

Assert that a process instance has a specific business key: 
assertThat(processInstance).hasBusinessKey("myBusinessKey");

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Instance: isWaitingAt

Assert that a process instance is currently waiting at a specified activity Id: 
assertThat(processInstance).isWaitingAt("edit");
Assert that a process instance is currently waiting at several specified activity Ids: 
assertThat(processInstance).isWaitingAt("edit", "correct");

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Instance: isNotWaitingAt

Assert that a process instance is currently NOT waiting at a specified activity Id: 
assertThat(processInstance).isNotWaitingAt("edit");
Assert that a process instance is currently NOT waiting at several specified activity Ids: 
assertThat(processInstance).isNotWaitingAt("edit", "correct");

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Instance: isWaitingAtExactly

Assert that a process instance is currently waiting at exactly one specified activity Id: 
assertThat(processInstance).isWaitingAtExactly("edit");
Assert that a process instance is currently waiting at exactly the several specified activity Ids: 
assertThat(processInstance).isWaitingAtExactly("edit", "correct");

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Instance: isWaitingFor

Assert that a process instance is currently waiting for a specified message: 
assertThat(processInstance).isWaitingFor("myMessage");
Assert that a process instance is currently waiting for several specified messages: 
assertThat(processInstance).isWaitingFor("myMessage", "yourMessage");

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Instance: isNotWaitingFor

Assert that a process instance is currently NOT waiting for a specified message: 
assertThat(processInstance).isNotWaitingFor("myMessage");
Assert that a process instance is currently NOT waiting for any of several specified messages: 
assertThat(processInstance).isNotWaitingFor("myMessage", "yourMessage");

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Definition: hasActiveInstances

Assert that a process definition currently has exactly the expected number of ‘active’ (so neither ended nor suspended) instances: 
assertThat(processDefinition).hasActiveInstances("1");

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Job: hasActivityId

Assert that a job is based on an activity definition with a specific id: 
assertThat(job).hasActivityId("ServiceTask_1");

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Job: hasDeploymentId

Assert that a job has a specific deployment id: 
assertThat(job).hasDeploymentId(deploymentId);

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Job: hasDueDate

Assert that a job is due at a specific date: 
assertThat(job).hasDueDate(dueDate);

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Job: hasId

Assert a specific internal id for the job: 
assertThat(job).hasId(id);

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Job: hasRetries

Assert that a job has a specific number of retries left: 
assertThat(job).hasRetries(3);

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Task: isAssignedTo

Assert that a specified user is assigned to a task: 
assertThat(task).isAssignedTo("kermit");

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Task: isNotAssigned

Assert that a task is currently not assigned to any user: 
assertThat(task).isNotAssigned();

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Task: hasCandidateGroup

Assert that a task is is currently waiting to be assigned to a user of the specified candidate group. 
assertThat(task).hasCandidateGroup("human-resources-department");
Note that (in line with ASEE Flow’s interpretation of the term ‘candidate’) assigned tasks will not pass this assertion. However, the next assertion discussed here, would pass:

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Task: hasCandidateGroupAssociated

Assert the expectation that a task is currently associated to the specified candidate group - no matter whether it is already assigned to a specific user or not. 
assertThat(task).hasCandidateGroupAssociated("human-resources-department");

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Task: hasCandidateUser

Assert that a task is currently waiting to be assigned to a specified candidate user: 
assertThat(task).hasCandidateUser("kermit");
Note that (in line with ASEE Flow’s interpretation of the term ‘candidate’) assigned tasks will not pass this assertion. However, the next assertion discussed here, would pass:

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Task: hasCandidateUserAssociated

Assert the expectation that a task is currently associated to the specified candidate user - no matter whether it is already assigned to a specific user or not. 
assertThat(task).hasCandidateUserAssociated("kermit");

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Task: hasDefinitionKey

Assert that a task has the specified definition key (aka the id attribute of the <userTask id=“review-and-approve” …/> element in the process definition BPMN 2.0 XML file): 
assertThat(task).hasDefinitionKey("review-and-approve");

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Task: hasDescription

Assert that the task has the specified free text description: 
assertThat(task).hasDescription("Please review and approve the result document.");

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Task: hasDueDate

Assert that a task is due at a specified date: 
assertThat(task).hasDueDate(expectedDueDate);

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Task: hasFormKey

Assert that a task is associated to a specified form (key): 
assertThat(task).hasFormKey("myForm.html");

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Task: hasId

Assert that a task has the specified internal id: 
assertThat(task).hasId("1");

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Task: hasName

Assert that the task has the specified name: 
assertThat(task).hasName("Review and approve");

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External Task: hasActivityId

Assert that the external task has the specified activity id: 
assertThat(externalTask).hasActivityId("review-and-approve");

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External Task: hasTopicName

Assert that the external task has the specified topic name: 
assertThat(externalTask).hasTopicName("Review and approve");

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Helpers

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Finding tasks, events and gateways by name

You can map the name of a task, event or a gateway to it’s ID by the means of a static helper method: 
findId("My verbose task name");

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Claiming tasks

You can directly claim a task by means of a static helper method: 
claim(task, "fozzie");

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Unclaiming tasks

You can directly unclaim a task by means of a static helper method: 
unclaim(task);

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Completing tasks

You can directly complete a task by means of a static helper method: 
complete(task);

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Completing tasks and passing process variables

You can directly construct a map of process variables by passing a sequence of key/value pairs to the static helper method “withVariables”: 
Map<String, Object> variables = withVariables("documentId", 5, "approved", true);
You can therefore e.g. write 
complete(task, withVariables("documentId", 5, "approved", true));

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Completing external tasks

You can directly complete an external task by means of a static helper method: 
complete(externalTask);

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Completing external tasks and passing process variables

You can directly construct a map of process variables by passing a sequence of key/value pairs to the static helper method “withVariables”: 
Map<String, Object> variables = withVariables("documentId", 5, "approved", true);
You can therefore e.g. write 
complete(externalTask, withVariables("documentId", 5, "approved", true));

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Executing jobs

You can directly execute a job by means of a static helper method: 
execute(job());

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Creating queries

You can directly create queries by means of a static helper methods: 
TaskQuery taskQuery = taskQuery();
JobQuery jobQuery = jobQuery();
ProcessInstanceQuery processInstanceQuery = processInstanceQuery();
ExecutionQuery executionQuery = executionQuery();
You can therefore e.g. write 
assertThat(processInstance).task(taskQuery().taskAssignee("fozzie")).hasCandidateGroup("human-resources-department");

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Accessing engine and engine API services

You can directly access the engine and API services by means of static helper methods: 
ProcessEngine engine = processEngine();

AuthorizationService authorizationService = authorizationService();
FormService formService = formService();
HistoryService historyService = historyService();
IdentityService identityService = identityService();
ManagementService managementService = managementService();
RepositoryService repositoryService = repositoryService();
RuntimeService runtimeService = runtimeService();
TaskService taskService = taskService();

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Making assertions on the only task of an instance

You can retrieve a “chained” task assert inspecting the one and only one task currently available in the context of a process instance… 
assertThat(processInstance).task();
… in order to directly make assertions on it, e.g. 
assertThat(processInstance).task().isNotAssigned();

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Making assertions on a specific task of an instance

You can retrieve a “chained” task assert inspecting a very specific task currently available in the context of a process instance… 
assertThat(processInstance).task("edit");
or 
assertThat(processInstance).task(taskQuery().taskAssignee("fozzie"));
… in order to directly make assertions on it, e.g. 
assertThat(processInstance).task("edit").isAssignedTo("fozzie");

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Making assertions on the only external task of an instance

You can retrieve a “chained” external task assert inspecting the one and only one external task currently available in the context of a process instance… 
assertThat(processInstance).externalTask();
… in order to directly make assertions on it, e.g. 
assertThat(processInstance).externalTask().hasTopicName("editing");

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Making assertions on a specific external task of an instance

You can retrieve a “chained” external task assert inspecting a very specific external task currently available in the context of a process instance… 
assertThat(processInstance).externalTask("edit");
or 
assertThat(processInstance).externalTask(externalTaskQuery().activityId("edit"));
… in order to directly make assertions on it, e.g. 
assertThat(processInstance).externalTask("edit").hasTopicName("editing");

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Making assertions on the only job of an instance

You can retrieve a “chained” job assert inspecting the one and only one job currently available in the context of a process instance… 
assertThat(processInstance).job();
… in order to directly make assertions on it, e.g. 
assertThat(processInstance).job().hasRetries(0);

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Making assertions on a specific job of an instance

You can retrieve a “chained” job assert inspecting a very specific job currently available in the context of a process instance… 
assertThat(processInstance).job("ServiceTask_1");
or 
assertThat(processInstance).job(jobQuery().executionId(executionId));
… in order to directly make assertions on it, e.g. 
assertThat(processInstance).job("ServiceTask_1").hasRetries(0);

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Making assertions on the only called process of a super process instance

You can retrieve a “chained” process instance assert inspecting the one and only called process instance currently available in the context of a super process instance… 
assertThat(processInstance).calledProcessInstance();
… in order to directly make assertions on it, e.g. 
assertThat(processInstance).calledProcessInstance().hasProcessDefinitionKey("mySubProcessDefinitionKey");

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Making assertions on a specific called process instance of a super process instance

You can retrieve a “chained” process instance assert inspecting a very specific called process instance currently available in the context of a super process instance, either by means of a processDefinitionKey… 
assertThat(processInstance).calledProcessInstance("mySubProcessDefinitionKey");
or even by means of a more sophisticated processInstanceQuery 
assertThat(processInstance).calledProcessInstance(processInstanceQuery().processDefinitionKey("mySubProcessDefinitionKey"));
… in order to directly make assertions on it, e.g. 
assertThat(processInstance).calledProcessInstance("mySubProcessDefinitionKey").isNotNull();

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Making assertions on the process variables map of an instance

You can retrieve a “chained” process variables map assert inspecting all the process variables available in the context of a process instance… 
assertThat(processInstance).variables();
… in order to directly make assertions on them, e.g. 
assertThat(processInstance).variables()
  .hasSize(2).containsEntry("approved", true);
You may want to compare that with the other possibility to assert whether a process instance hasVariables (without leaving your current ProcessInstanceAssert).

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Accessing tasks in the context of a process instance under test

You can directly access tasks in the context of the last asserted process instance by means of static helper methods: 
assertThat(processInstance).isNotNull();
...
Task onlyTaskOflastAssertedProcessInstance = task();
Task someTaskOflastAssertedProcessInstance = task("review-and-approve");
Task sameTaskOflastAssertedProcessInstance = task(taskQuery().taskDefinitionKey("review-and-approve"));
You can therefore e.g. write … 
assertThat(processInstance).task().hasDefinitionKey("review-and-approve");
complete(task(), withVariables("documentId", 5, "approved", true));
Furthermore you can directly access tasks in the context of a specified process instance by means of static helper methods: 
Task onlyTaskOfProcessInstance = task(processInstance);
Task someTaskOfProcessInstance = task("review-and-approve", processInstance);
Task sameTaskOfProcessInstance = task(taskQuery().taskDefinitionKey("review-and-approve"), processInstance);
You can therefore e.g. write … 
complete(task("review-and-approve", processInstance), withVariables("documentId", 5, "approved", true));

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Accessing external tasks in the context of a process instance under test

You can directly access external tasks in the context of the last asserted process instance by means of static helper methods: 
assertThat(processInstance).isNotNull();
...
ExternalTask onlyTaskOflastAssertedProcessInstance = externalTask();
ExternalTask someTaskOflastAssertedProcessInstance = externalTask("review-and-approve");
ExternalTask sameTaskOflastAssertedProcessInstance = externalTask(externalTaskQuery().activityId("review-and-approve"));
You can therefore e.g. write … 
assertThat(processInstance).externalTask().hasActivityId("review-and-approve");
complete(externalTask(), withVariables("documentId", 5, "approved", true));
Furthermore you can directly access external tasks in the context of a specified process instance by means of static helper methods: 
ExternalTask onlyTaskOfProcessInstance = externalTask(processInstance);
ExternalTask someTaskOfProcessInstance = externalTask("review-and-approve", processInstance);
ExternalTask sameTaskOfProcessInstance = externalTask(externalTaskQuery().activityId("review-and-approve"), processInstance);
You can therefore e.g. write … 
complete(externalTask("review-and-approve", processInstance), withVariables("documentId", 5, "approved", true));

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Accessing jobs in the context of a process instance under test

You can directly access jobs in the context of the last asserted process instance by means of static helper methods: 
assertThat(processInstance).isNotNull();
...
Job onlyJobOflastAssertedProcessInstance = job();
Job someJobOflastAssertedProcessInstance = job("publish");
Job someJobOflastAssertedProcessInstance = job(jobQuery().executionId(executionId));
You can therefore e.g. write … 
assertThat(processInstance).job("publish").isNotNull();
execute(job("publish"));
Furthermore you can directly access jobs in the context of a specified process instance by means of static helper methods: 
Task onlyJobOfProcessInstance = job(processInstance);
Task someJobOfProcessInstance = job("publish", processInstance);
Task sameJobOfProcessInstance = job(jobQuery().executable(), processInstance);
You can therefore e.g. write … 
execute(job("publish", processInstance));

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Accessing called process instances in the context of a process instance under test

You can directly access called process instances in the context of the last asserted process instance by means of static helper methods: 
assertThat(processInstance).isNotNull();
...
ProcessInstance onlyCalledProcessInstanceOflastAssertedProcessInstance = calledProcessInstance();
ProcessInstance someCalledProcessInstanceOflastAssertedProcessInstance = calledProcessInstance("myCalledProcessDefinitionKey");
ProcessInstance someCalledProcessInstanceOflastAssertedProcessInstance = calledProcessInstance(processInstanceQuery().processDefinitionKey("myCalledProcessDefinitionKey"));
You can therefore e.g. write … 
assertThat(processInstance).isNotNull();
ProcessInstance calledProcessInstance = calledProcessInstance();
Furthermore you can directly access jobs in the context of a specified super process instance by means of static helper methods: 
ProcessInstance onlyCalledProcessInstanceOfProcessInstance = calledProcessInstance(superProcessInstance);
ProcessInstance someCalledProcessInstanceOfProcessInstance = calledProcessInstance("myCalledProcessDefinitionKey", superProcessInstance);
ProcessInstance sameCalledProcessInstanceOfProcessInstance = calledProcessInstance(processInstanceQuery().processDefinitionKey("myCalledProcessDefinitionKey"), superProcessInstance);
You can therefore e.g. write … 
ProcessInstance calledProcessInstance = calledProcessInstance("myCalledProcessDefinitionKey", superProcessInstance);

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Accessing process definitions

You can directly access process definitions by means of static helper methods: 
ProcessDefinition processDefinitionOflastAssertedProcessInstance = processDefinition();
ProcessDefinition processDefinitionOfSpecifiedProcessInstance = processDefinition(processInstance);
ProcessDefinition processDefinitionOfSpecifiedProcessDefinitionKey = processDefinition("myProcessDefintionKey");
ProcessDefinition processDefinitionConformingToSpecifiedQuery = processDefinition(processDefinitionQuery().processDefinitionKey("myProcessDefintionKey");
In order to check, whether your last asserted process instance is the only currently running instance of its own process definition you can therefore e.g. write … 
assertThat(processDefinition()).hasActiveInstances(1);