[jboss-jira] [JBoss JIRA] (DROOLS-4636) Update Scenario Cheatsheet to mention MVEL and Background

Update Scenario Cheatsheet to mention MVEL and Background --------------------------------------------------------- Key: DROOLS-4636 URL: https://issues.redhat.com/browse/DROOLS-4636 Project: Drools Issue Type: Task Components: Scenario Simulation and Testing Affects Versions: 7.27.0.Final Reporter: Anna Dupliak Assignee: Daniele Zonca Priority: Minor Labels: CustomerFocus, drools-tools Update Scenario Cheatsheet for MVEL expression usage. h3. Here are some topics that could be mentioned: Expressions for Rule based scenarios for simple types * Starts from "*#*" * Runs for +properties+ * Runs for +duplicated+ properties * Returns the +same+ type as property type in *GIVEN* * Returns boolean in *EXPECTED* * Receives rule processed value as a *parameter* in *EXPECTED* via keyword "*actualValue*" * Applies java.util.Objects.equals(actualValue, expression result) on the expression result if the *EXPECTED* value not a *boolean* * Could run any of java function for the project * Exports and imports as any other value Limitations 1. Mvel expression results +not property same+ type - drives scenario +failure, error reason and highlighted+ Use case: User inputs 1/2 to Integer property 2.Mvel execution throws +exception+ - drives scenario execution +stopping, failure, error alert+ Use case: User inputs inexistent MVEL function in one of the properties 3.Mvel expression +exception stops+ expression +execution+ for all *EXPECT* colons Use case: User got one of the GIVEN fact expression excepted 4.Mvel +cannot be mixed+ with simple expressions in one cell Use case: For cell inputs : {code:java} [#4+4,68] #actualvalue>1 {code}