JBPM 6 - 2.0.0 - Unit Testing Introduction

JBPM 6 - 2.0.0 - Unit Testing Introduction 单元测试介绍

Unit testing 单元测试

• Unit testing is a software testing method by which individual units of source code are tested to determine if they are fit for use

单元测试是一个软件测试方法，人们经过测试代码的独立单元，从而决定是否代码可以投入使用

• Unit tests are short code fragments created by programmers or testers during the development process.

单元测试代码是开发过程中程序员或测试人员写的很短的代码片段

• Unit testing provides a sort of living documentation of the system.

单元测试相当于提供了一套活着的系统文档

JUnit

• JUnit is a unit testing framework for the Java programming language.

public class TestFoobar {

    @Test
    public void testOneThing() {
        // Code that tests one thing
    }
 
    @Test
    public void testAnotherThing() {
        // Code that tests another thing
    }

}

Assertion

• An assertion is a true–false statement placed in a program to indicate that the developer thinks 'that the predicate is always true at that place.
• If an assertion evaluates to false at run-time, an assertion failure results, which typically causes execution to abort.

x = 1;
assert (x > 0);
x++;
assert (x > 1);

Appendix

assert methods used in jBPM

assertNodeTriggered(processInstance.getId(),"Book Hotel");
assertNodeTriggered(processInstance.getId(), "StartProcess", "Hello", "EndProcess");
// checks whether the given node(s) was/were executed during the process execution

assertProcessInstanceActive(processInstanceId, ksession)
// checks whether the process instance is active

assertProcessInstanceCompleted(processInstanceId, ksession);
// checks whether the process instance has completed successfully

java operators

Simple Assignment Operator

=       Simple assignment operator

Arithmetic Operators

+       Additive operator (also used for String concatenation)
-       Subtraction operator
*       Multiplication operator
/       Division operator
%       Remainder operator

Equality and Relational Operators

==      equal to
!=      not equal to
>       greater than
>=      greater than or equal to
<       less than
<=      less than or equal to
!       logical complement operator; inverts the value of a boolean

Conditional Operators

&& Conditional-AND
|| Conditional-OR