Introduction to Unit Testing for Mule Flows using Munit(Java) - Part 1
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This document provides an introduction to unit testing Mule flows using Munit. It defines what a unit test is and characteristics of good unit tests. Reasons for writing unit tests are given such as reducing bugs and improving design. Dependencies for Munit unit testing like JUnit and Munit framework are described. Capabilities of Munit like mocking message processors and outbound endpoints are outlined. Finally, resources credited for the information are provided.
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My journey and learnings using mule esb part 1Alex Fernandez This document outlines lessons learned from using Mule ESB for integration projects. It recommends mavenizing all Mule projects to easily manage dependencies rather than using JAR files. It also suggests tools like Postman and SoapUI for testing APIs during integration work. Resources are provided for validating payloads and learning more about Mule.
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Spring batch introductionAlex Fernandez Spring Batch is a framework for processing large volumes of records in batch jobs. It provides reusable functions for logging, transactions, job processing statistics, and restarting or skipping jobs. Batch jobs read input data, process it, and write the output. Spring Batch jobs consist of a job with steps, an item reader to read input, an item processor to transform data, and an item writer to write output. Job repositories store metadata about job executions. Common item readers and writers include flat files, databases, and messaging systems.
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Creating debian package in mule apps 1Alex Fernandez This document provides a guide to creating Debian packages for automatic deployment of Mule applications. It discusses commonly used deployment methods for Mule apps like the Mule Management Console REST plugin and manual zip file copying. The document focuses on using the Jdeb library to create Debian packages from Mule projects, allowing deployment on any platform with Java support. Steps outlined include defining app variables, including the Jdeb plugin, defining profiles and control files, creating the Debian package, and installing it. Future integration with Nexus and Jenkins is mentioned.
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Data communication part 6Alex Fernandez The document discusses subnetting networks and assigning IP addresses. It covers:
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2) An example of subnetting the 192.168.4.0/24 network into two /26 subnets and then into six /27 subnets to accommodate three required subnets.
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Data communication Part 11Alex Fernandez IIS enables setting a maximum connection limit on web servers to protect against denial of service attacks. Apache is an open source web server that runs on Linux/Unix and Windows, serving over 50% of websites. It is configured using graphical interfaces like Webmin. Web clients like browsers access pages from servers using HTTP, while HTTPS uses SSL/TLS encryption to securely transmit private documents over the internet. Telnet was formerly used for remote command line access but has been replaced by secure shell (SSH) due to a lack of encryption.
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Data communication part 8Alex Fernandez Routers are key to connecting individual local area networks (LANs) into wide area networks (WANs). Routers inspect packets and forward them toward their destination LAN based on routing tables that tell the router where to send each packet. Routing tables contain information on destination networks, subnet masks to identify networks, gateways for networks not directly connected, and interfaces to use for sending packets. This allows routers to automatically route traffic along the best path without much maintenance once configured.
Data communication part 7
Data communication part 7Alex Fernandez 1) DHCP automatically assigns IP addresses to devices on a network when they connect. A DHCP client broadcasts a request that is received by the DHCP server, which then issues an IP address from its scope.
2) The DHCP server sends an acknowledgement to the client with the assigned IP and MAC address stored in its database. This assignment is called a DHCP lease that typically lasts 5-8 days.
3) If a DHCP client cannot connect to the DHCP server, it will automatically generate an APIPA address in the 169.254/16 range, allowing it to still communicate on the local network but not access the internet without a default gateway from the DHCP server.
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Using schemas in parsing xml part 1Alex Fernandez This document discusses using XML schemas and JAXB to convert XML documents to Java objects (POJOs). It explains that an XML schema validates an XML document's structure and that JAXB can be used to convert XML data into POJO data classes for easy processing in Java. It also provides an example of using the Maven JAXB2 plugin to generate Java classes from an XML schema and configure the plugin. Finally, it demonstrates how to generate an XML schema from a sample XML file using an online XSD generator.
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Using schemas in parsing xml part 2Alex Fernandez The document discusses using JAXB to automatically generate Plain Old Java Objects (POJOs) from XML schemas. It explains that the JAXB plugin will look for XML schemas in a specified binding directory and generate POJO files in a target directory under a given package. The generated POJOs can then be used to convert XML data into POJO objects that can be manipulated and transformed.
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Data Communication Concepts Part 5Alex Fernandez Computer A compares its IP address to Computer B's IP address using the subnet mask. They have matching network IDs, so Computer A sends an ARP broadcast to determine Computer B's MAC address. Computer B responds with its MAC address, allowing communication. When sending to Computer C, their network IDs do not match, so Computer A sends the packet to the default gateway instead of directly to Computer C. Subnet masks in binary and dotted decimal format are used to determine if the IP addresses have matching network IDs.
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- 1. Introduction to Unit Testing for Mule Flows using Munit(Java) - Part 1 January 6, 2015
- 2. What is a unit test? A unit test is an automated piece of code that invokes a unit of work in the system and then checks a single assumption about the behavior of that unit of work. A unit of work is a single logical functional use case in the system that can be invoked by some public interface (in most cases). A unit of work can span a single method, a whole class or multiple classes working together to achieve one single logical purpose that can be verified.
- 3. What makes a good unit test? 1. Able to be fully automated 2. Has full control over all the pieces running (Use mocks or stubs to achieve this isolation when needed) 3. Can be run in any order if part of many other tests 4. Runs in memory (no DB or File access, for example) 5. Consistently returns the same result (You always run the same test, so no random numbers, for example. save those for integration or range tests) 6. Runs fast 7. Tests a single logical concept in the system 8. Readable 9. Maintainable 10.Trustworthy (when you see its result, you don’t need to debug the code just to be sure)
- 4. Why do we need a Unit Test? 1. Tests Reduce Bugs in New Features 2. Tests Reduce Bugs in Existing Features 3. Tests Are Good Documentation 4. Tests Reduce the Cost of Change 5. Tests Improve Design 6. Tests Allow Refactoring 7. Tests Constrain Features 8. Tests Defend Against Other Programmers
- 5. Dependencies Anypoint Studio (any Runtime) ● Junit ● Munit ● Hamcrest
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- 8. Munit Capabilities Create your Mule test by writing Mule code Create your Mule test by writing Java code Disable flow inbound endpoints Disable endpoint connectors Mock outbound endpoints Mock message processors
- 9. Munit Capabilities Verify message processor calls Create not only unit tests but also integration tests in a local environment — MUnit allows you to start a local FTP/SFTP, DB server or mail server Call the Mule client from Mule code Assert flow exceptions Enable or disable particular tests See assertion/error reports with Mule stack trace