EasyMock - Environment Setup

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This chapter takes you through the process of setting up EasyMock on Windows and Linux based systems. EasyMock can be easily installed and integrated with your current Java environment following a few simple steps without any complex setup procedures. User administration is required while installation.

System Requirements

JDK	Java SE 2 JDK 1.5 or above
Memory	1 GB RAM (recommended)
Disk Space	No minimum requirement
Operating System Version	Windows XP or above, Linux

Let us now proceed with the steps to install EasyMock.

Step 1: Verify your Java Installation

First of all, you need to have Java Software Development Kit (SDK) installed on your system. To verify this, execute any of the two commands depending on the platform you are working on.

If the Java installation has been done properly, then it will display the current version and specification of your Java installation. A sample output is given in the following table.

Platform	Command	Sample Output
Windows	Open command console and type: \>java –version	java version "11.0.11" 2021-04-20 LTS Java(TM) SE Runtime Environment 18.9 (build 11.0.11+9-LTS-194) Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.11+9-LTS-194, mixed mode)
Linux	Open command terminal and type: $java –version	java version "11.0.11" 2021-04-20 LTS Open JDK Runtime Environment 18.9 (build 11.0.11+9-LTS-194) Open JDK 64-Bit Server VM (build 11.0.11+9-LTS-194, mixed mode)

• We assume the readers of this tutorial have Java SDK version 11.0.11 installed on their system.

• In case you do not have Java SDK, download its current version from https://www.oracle.com/technetwork/java/javase/downloads/index.html and have it installed.

Step 2: Set your Java Environment

Set the environment variable JAVA_HOME to point to the base directory location where Java is installed on your machine. For example,

Sr.No.	Platform & Description
1	Windows Set JAVA_HOME to C:\ProgramFiles\java\jdk11.0.11
2	Linux Export JAVA_HOME = /usr/local/java-current

Append the full path of Java compiler location to the System Path.

Sr.No.	Platform & Description
1	Windows Append the String "C:\Program Files\Java\jdk11.0.11\bin" to the end of the system variable PATH.
2	Linux Export PATH = $PATH:$JAVA_HOME/bin/

Execute the command java -version from the command prompt as explained above.

Step 3: Install EasyMock Library

Download the latest version of EasyMock from https://easymock.org/ and unzip its contents to a folder from where the required libraries can be linked to your Java program. Let us assume the files are collected in a folder on C drive.

Add the complete path of the required jars as shown below to the CLASSPATH.

Sr.No.	Platform & Description
1	Windows Append the following strings to the end of the user variable CLASSPATH − C:\easymock\easymock-4.3.jar;
2	Linux Export CLASSPATH = $CLASSPATH: /usr/share/easymock\easymock-4.3.tar:

Step 4: Download JUnit Archive

Download the latest version of JUnit jar file from Github. Save the folder at the location C:\>Junit.

OS	Archive name
Windows	junit4.13.2.jar, hamcrest-core-1.3.jar
Linux	junit4.13.2.jar, hamcrest-core-1.3.jar

Step 5: Set JUnit Environment

Set the JUNIT_HOME environment variable to point to the base directory location where JUnit jars are stored on your machine. The following table shows how to set this environment variable on different operating systems, assuming we've stored junit4.13.2.jar and hamcrest-core-1.3.jar at C:\>Junit.

OS	Output
Windows	Set the environment variable JUNIT_HOME to C:\JUNIT
Linux	export JUNIT_HOME=/usr/local/JUNIT

Step 6: Set CLASSPATH Variable

Set the CLASSPATH environment variable to point to the JUNIT jar location. The following table shows how it is done on different operating systems.

OS	Output
Windows	Set the environment variable CLASSPATH to %CLASSPATH%;%JUNIT_HOME%\ junit4.13.2.jar;%JUNIT_HOME%\hamcrest-core-1.3.jar;.
Linux	Export CLASSPATH=$CLASSPATH:$JUNIT_HOME/ junit4.13.2.jar:$JUNIT_HOME/hamcrest-core-1.3.jar:.