Presentation on MUnit and Automated Testing by Albin Kjellin used during the MuleSoft Meetup Event in Stockholm on 15th of February. The presentation covers basic MUnit concepts and an overview of more advanced MUnit features.

1. mUnit - MeetUp 2018 Feb
Albin - MuleSoft

2. All contents © MuleSoft Inc.
Agenda
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● Intro
● Basics
● Features

3. API Lifecycle

4. Flow Designer
Mocking Service
API Console
Anypoint Studio
MUnit
Runtime Manager
API Manager
API Portals
Anypoint Analytics
Anypoint Exchange
API Designer

5. 3rd
Party Tools
JUnit
Anypoint Platform
Runtime
Manager
API
Manager
Exchange
Commit
Ship
Image
Mgmt Agent

6. mUnit Basics

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What is MUnit?
• MUnit is a Mule testing framework
• Allows Mule developers to automate testing Mule applications
• Provides the ability to mock different Mule components so that the
tests cases can be constrained and isolated.

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• Integration
- Write Test flows in mule and/or java code: Engage quickly
- Fully integrated with Maven: Munit tests can be added to CI process
- Fully integrated with Surefire: Allows the generation of surefire reports
• Mocking
- Selected inbound endpoints: i.e. AMQP, JMS, FTP
- Selected message processors: i.e. by defining the namespace and
name (jira:create-group)
- Mock outbound endpoints: Enabling complete encapsulation of the
flow unit test
How is MUnit used?

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• Testing and asserting
- Enables common assertions: i.e. assert-not-null, assert-on-equals,
assert-that
- Test the # of times a certain MP has been called: i.e. exactly once,
at least once, at most once
- “Spy” on MP’s before and after their execution: i.e. Introspect the
payload before and after calling a certain component
- Custom Assertions: Allows to extend the framework to support
custom assertions (i.e. for complex validation)
How is MUnit used?

10. Feature list

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Feature List
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Mock
Verify
Assert
Spy
Matchers
Set Message
Run And Wait
Fake Services (FTP, DB, etc)
Maven Support

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MUnit lets you define Mule Messages in a more
powerful way.
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Feature list - Set Message

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Feature List - Mocks
Mock wraps all message processors
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Feature List - Verify
Verify lets you validate a message processor call
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Feature List - Assert
Assert lets you validate the state of a Mule Message
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Feature List - Spy
Spy lets you see and take some actions before and
after a message processor execution
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Feature List - Matchers
Matchers are a set of MEL functions that helps in the
creation of mocks and validations
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Synchronize lets you have your test waiting until all
the asynchronous executions are done
Feature List - Run & wait
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MUnit provides a set of in-memory implementations
for common services such as DB, FTP, Mails
Feature list - Fake services
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Feature List - Coverage report
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21. Happy Testing!