1. Configure Groovy IDE
l Statically install the Groovy IDE plugin by "Installing the Groovy IDE Plugin" in Eclipse3
l Window> Customize Perspective> Shortcuts> New
l Select the goovy item, including the New Groovy Class and New Groovy Unit Test
2. Create a Groovy class
l File> New> Project> Java Project
l Enter engineering name, such as TestGroovy
l Click the Finish button to complete the project creation
l File> New> New Groovy Class
l Enter the Groovy class name, such as Hellogroovy
l Click the Finish button, system prompt: Add Runtime Groovy Support and Auto Build To Project?
l Click Yes to add Groovy support: Groovy and ASM class libraries have been added to the build path (running the Groovy class)
l Groovy class With Groovy to extension, providing a code framework similar to the MAIN method in Java, exemplifying "Hello Groovy!"
Class Hellogroovy {
Static void main (args) {
PRINTLN "Hello Groovy!"
}
}
l You can see the code of the Groovy class is comparable than Java.
l Note: Since the Groovy IDE plugin is still in the development phase, the editing function is still very weak (not very easy)
3. Run the Groovy program
l Run> run
l Select Groovy in the left list, click the New button below.
l Groovy Main tab:
Ø Project: TestGroovy
Ø main class: (selection) Hellogroovy
l Click the RUN button, you will see the run results in the Console view.
4. Groovy unit test
l File> New> New Groovy Unit Test
l Enter the name, such as Groovytest
l Click the Finish button to generate a basic framework
Import groovy.util.groovytestcase
Ø Class Groovytest Extends Groovytestcase {
Void testsomething () {
askERT 1 == 1
}
}
l Groovy's unit test class must expand the GroovyTestCase class, just add a simple Assert statement in the example
l In addition to using Juint's assertion statement, GroovyTestCase adds some additional assertion statements:
Ø AssertArrayequals (Object [] expected, object [] value)
Ø AssertLength (Int Length, char [] array)
Ø AssertLength (int length) Ø assertlength (int length, object [] array)
Ø assertcontains (char expected, char [] array)
Ø assertcontains (int expected, int [] array)
Ø AssertToString (Object Value, String Expected)
Ø AssertInspect (Object value, String Expected)
Ø AssertScript (Final String Script) // Asnee, there is no abnormality
Ø ShouldFail (Closure Code) // Ask the closure without throwing anomaly
Ø Should Fail (Class Clazz, Closure Code) // Only, just targeting class
In addition, in the Groovy script, the assertion statement can be used directly, as described below:
X = [1, 2, 3]
askERT X.SIZE () == 3
5, run the Groovy test case
l Run> run
l Select Juint in the left list, click the New button below.
l Test tab, select Run A Single Test:
Ø Project: TestGroovy
Ø TEST CLASS: (Select) Groovy.util.groovytestsuite (this is a JUnit Testsuite, used to compile and run the Groovy test case)
l Add: -dtest = src / groovytest.groovy (providing TEST system properties to specify the Groovy test case to run)
l Click the RUN button, you will see the test results in the JUInt view (you need to open the Juint view yourself)
