alias gradleb = 'groovy /path/to/gradleb.groovy'と$ gradleb -g org.mikeneck.gradleb.sample -j 1.7 -p sample-web -v 0.1 -a jetty,groovy,idea -d groovy/org.codehaus.groovy:groovy-all:2.0.5,compile/org.jboss.spec.javax.servlet:jboss-servlet-api_3.0_spec:1.0.2.Final,compile/org.springframework:spring-core:3.1.2.RELEASE,testCompile/junit:junit:4.11
| groupId | org.mikeneck.graffiti |
|---|---|
| artifactId | mike-graffiti-core |
| version | 1.0.0 |
Gradleやっている人でGradleプラグイン作ってないとかありえないだろ オレ「(・_・;)」 #java_ja
— mike_neckさん (@mike_neck) 6月 27, 2012.gitignoreファイルをbuild.gradlebuild.gradleはこんな感じ。coreというモジュールのdependencyに、gradleApi()とあります。core/src/main/groovy/og/mikeneck/gradle/git/GitIgnorePlugin.groovyというファイルになります。project.task('git-ignore')という部分によって、git-ignoreというタスクが作成されます。core/src/main/resources/META-INF/gradle-plugins/gitignore.propertiesというファイルのapply plugin : 'gitignore'
Gradleでdependencyの指定にGStringが指定できないのはちょっと不便…(´・ω・｀)
— 冬眠中さん (@mike_neck) 2月 24, 2012GStringクラスがあり、dependencyの指定にはGStringを利用したいわけです。build.gradleでは、GStringがStringにキャストできないということらしいです。toString()メソッドを利用します。build.gradleでWindowsでコンパイルする場合、こんなエラーが出ます(コードページは932、ソースはUTF-8)。build.gradleファイルになります。
GMongoって何ぞ？という方もいると思いますので、とりあえず、簡単に説明すると、
<dependencies>
<dependency>
<groupId>com.gmongo</groupId>
<artifactId>gmongo</artifactId>
<version>0.9.2</version>
</dependency>
</dependencies>
@Grapesでは次のような感じです。
@Grapes(
@Grab(group='com.gmongo', module='gmongo', version='0.9.2')
)
Gradleでは次のような感じになります。
repositories {
mavenCentral()
}
dependencies {
groovy : 'com.gmongo:gmongo:0.9.2'
}
MongoTest.groovy
import com.gmongo.GMongo
import org.junit.Before
@Before
public void setUp() {
def mongo = new GMongo('localhost', 27017)
}
use db名称ですね。GMongoの次のメソッドを用いることで、DBインスタンスを取得できます。MongoTest.groovy
import com.gmongo.GMongo
import org.junit.Before
import com.mongodb.DB
@Before
public void setUp() {
def mongo = new GMongo('localhost', 27017)
def db = mongo.getDB('mydb')
}
insertですね。mydb.itemsというエンティティ(?)に入れましたので、同様のコードを書きたいと思います。MongoTest.groovy
import com.gmongo.GMongo
import org.junit.Before
import com.mongodb.DB
@Before
public void setUp() {
def mongo = new GMongo('localhost', 27017)
def db = mongo.getDB('mydb')
def entity = db['items']
}
entityにデータを入れていけば良いのです。Hashでデータを入れられます。MongoTest.groovy
import com.gmongo.GMongo
import org.junit.Before
import com.mongodb.DB
@Before
public void setUp() {
def mongo = new GMongo('localhost', 27017)
def db = mongo.getDB('mydb')
def entity = db['items']
10.times {
entity.insert([type : 'data', value : it])
}
}
MongoTest.groovy
import org.junit.Test
import com.gmongo.GMongo
import org.junit.Before
import com.mongodb.DB
class MongoTest {
@Before
public void setUp() {
def mongo = new GMongo('localhost', 27017)
def db = mongo.getDB('mydb')
def entity = db['items']
10.times {
entity.insert([type : 'data', value : it])
}
}
@Test
public void testSetUp() {
def mongo = new GMongo('localhost', 27017)
def db = mongo.getDB('mydb')
def list = db.items.find()
assert list.size() == 10
}
}
@Afterを使ってデータを削除しておきましょう。MongoTest.groovy
import org.junit.Test
import com.gmongo.GMongo
import org.junit.Before
import com.mongodb.DB
import org.junit.After
class MongoTest {
@Before
public void setUp() {
def mongo = new GMongo('localhost', 27017)
def db = mongo.getDB('mydb')
def entity = db['items']
10.times {
entity.insert([type : 'data', value : it])
}
}
@Test
public void testSetUp() {
def mongo = new GMongo('localhost', 27017)
def db = mongo.getDB('mydb')
def list = db.items.find()
assert list.size() == 10
}
@After
public void tearDown() {
def mongo = new GMongo('localhost', 27017)
def db = mongo.getDB('mydb')
db.items.remove([:])
}
}
@Afterで実行したコマンドはmongodbにおける次のコマンドと同じです。
> db.items.remove({})
>
for (int i = 0; i < 100; i++ ) {
Thread.sleep(10);
}
CreateTest.groovy
import static groovyx.gpars.GParsPool.*;
def packagePath = 'C:/Users/mike/IDEA_Project/GradleSample/src/test/java/orz/mikeneck/gradle/sample/boxunbox/test'
def head = $/
package orz.mikeneck.gradle.sample.boxunbox.test;
import org.junit.Before;
import org.junit.Test;
import java.util.Arrays;
import java.util.List;
import static org.hamcrest.CoreMatchers.*;
import static org.junit.Assert.*;
/$
def body = $/
public static final int SIZE = 100;
private List<Integer> intList;
private List<Long> longList;
@Test
public void testInteger() throws InterruptedException {
int[] array = new int[SIZE];
int position = 0;
for(Integer item : intList) {
array[position++] = item;
Thread.sleep(10);
}
for (int i : array)
assertThat(i, is(intList.get(i)));
}
@Test
public void testLong() throws InterruptedException {
long[] array = new long[SIZE];
int position = 0;
for (Long item : longList) {
array[position++] = item;
Thread.sleep(10);
}
position = 0;
for(long item : array)
assertThat(item, is(longList.get(position++)));
}
@Before
public void setUp() throws Exception {
Integer[] integers = new Integer[SIZE];
Long[] longs = new Long[SIZE];
for(int i = 0; i < SIZE; i++)
integers[i] = new Integer(i);
intList = Arrays.asList(integers);
for (int i = 0; i < SIZE; i++)
longs[i] = new Long(i + Integer.MAX_VALUE);
longList = Arrays.asList(longs);
}
}
/$
def numbers = []
(1..300).each {
numbers << it
}
withPool {
numbers.collectParallel { number ->
def className = "BoxUnboxTest${number}"
def name = "${className}.java"
def fileName = "${packagePath}/${name}"
def define = "public class ${className} {"
def content = new StringWriter()
content << head
content << define
content << body
println ' ---- '
println "now processing : $fileName"
println ' ---- '
new File(fileName).write(content.toString(), 'UTF-8')
assert new File(fileName).exists() == true
}
}
build.gradle
apply plugin: 'java'
repositories {
mavenCentral()
}
dependencies {
testCompile 'junit:junit:4.8.2'
}
OS : Windows 7
CPU : Intel Xeon X3460 (8Core) (64bit)
RAM : 8.00GB
c:\Users\mike\IdeaProjects\TestingGradle>gradle build
:buildSrc:compileJava UP-TO-DATE
:buildSrc:compileGroovy UP-TO-DATE
:buildSrc:processResources UP-TO-DATE
:buildSrc:classes UP-TO-DATE
:buildSrc:jar UP-TO-DATE
:buildSrc:assemble UP-TO-DATE
:buildSrc:compileTestJava UP-TO-DATE
:buildSrc:compileTestGroovy UP-TO-DATE
:buildSrc:processTestResources UP-TO-DATE
:buildSrc:testClasses UP-TO-DATE
:buildSrc:test UP-TO-DATE
:buildSrc:check UP-TO-DATE
:buildSrc:build UP-TO-DATE
:compileJava UP-TO-DATE
:processResources UP-TO-DATE
:classes UP-TO-DATE
:jar UP-TO-DATE
:assemble UP-TO-DATE
:compileTestJava
:processTestResources UP-TO-DATE
:testClasses
:test
:check
:build
BUILD SUCCESSFUL
Total time: 15 mins 42.983 secs
build.gradle
apply plugin: 'java'
repositories {
mavenCentral()
}
dependencies {
testCompile 'junit:junit:4.8.2'
}
test {
maxParallelForks = 6
forkEvery = 30
}
maxParallelForksは並列するスレッド数。forkEveryは指定した回数テストを実行するとJVMを再起動して、OutOfMemoryExceptionを回避する仕組みです。
c:\Users\mike\IdeaProjects\TestingGradle>gradle build
:buildSrc:compileJava UP-TO-DATE
:buildSrc:compileGroovy UP-TO-DATE
:buildSrc:processResources UP-TO-DATE
:buildSrc:classes UP-TO-DATE
:buildSrc:jar UP-TO-DATE
:buildSrc:assemble UP-TO-DATE
:buildSrc:compileTestJava UP-TO-DATE
:buildSrc:compileTestGroovy UP-TO-DATE
:buildSrc:processTestResources UP-TO-DATE
:buildSrc:testClasses UP-TO-DATE
:buildSrc:test UP-TO-DATE
:buildSrc:check UP-TO-DATE
:buildSrc:build UP-TO-DATE
:compileJava UP-TO-DATE
:processResources UP-TO-DATE
:classes UP-TO-DATE
:compileTestJava UP-TO-DATE
:processTestResources UP-TO-DATE
:testClasses UP-TO-DATE
:test
:check
:build
BUILD SUCCESSFUL
Total time: 2 mins 42.544 secs
15min43sec / 6(core) = 2min37sec
GradleのmaxParallelForksを使うともれなくスローテスト問題が解決できる。
When JUnit tests reach a certain level of proliferation within a project, there is a motivation to run them in parallel to get the results faster. However, there would be a great overhead to running every unit test in its own JVM. Gradle provides an intelligent compromise in that it offers a maxParallelForks that governs the maximum simultaneous JVMs that are spawned.
In the same area of testing, but with a different motivation, is the forkEvery setting. Tests, in their quest to touch everything and exercise as much as possible, can cause unnatural pressure on the JVM's memory allocation. In short, it is waht Java developers term a "leak". It can merely be the loading of every class causing the problem. This isn't really a leak since the problem stems from the fact that loaded class definitions are not garbage collected but instead are loaded into permgen space. The forkEvery setting causes a test-running JVM to close and be replaced by a brand new one after the specified number of tests have run under an instance.
maxParallelForks … テストの並列実行数forkEvery … JVMの再起動の頻度(OutOfMemoryExceptionを回避するためにJVMを再起動する。)build.gradle
apply plugin: 'java'
repositories {
mavenCentral()
}
dependencies {
testCompile 'junit:junit:4.8.2'
}
test {
maxParallelForks = 5
forkEvery = 30
}
OutOfMemoryExceptionを回避して、スローテスト問題に対応してくれるということです。CreateTest.groovy
import static groovyx.gpars.GParsPool.*;
def packagePath = 'C:/Users/mike/IDEA_Project/GradleSample/src/test/java/orz/mikeneck/gradle/sample/boxunbox/test'
def head = $/
package orz.mikeneck.gradle.sample.boxunbox.test;
import org.junit.Before;
import org.junit.Test;
import java.util.Arrays;
import java.util.List;
import static org.hamcrest.CoreMatchers.*;
import static org.junit.Assert.*;
/$
def body = $/
public static final int SIZE = 400;
private List<Integer> intList;
private List<Long> longList;
@Test
public void testInteger() {
int[] array = new int[SIZE];
int position = 0;
for(Integer item : intList)
array[position++] = item;
for (int i : array)
assertThat(i, is(intList.get(i)));
}
@Test
public void testLong() {
long[] array = new long[SIZE];
int position = 0;
for (Long item : longList)
array[position++] = item;
position = 0;
for(long item : array)
assertThat(item, is(longList.get(position++)));
}
@Before
public void setUp() throws Exception {
Integer[] integers = new Integer[SIZE];
Long[] longs = new Long[SIZE];
for(int i = 0; i < SIZE; i++)
integers[i] = new Integer(i);
intList = Arrays.asList(integers);
for (int i = 0; i < SIZE; i++)
longs[i] = new Long(i + Integer.MAX_VALUE);
longList = Arrays.asList(longs);
}
}
/$
def numbers = []
(1..400).each {
numbers << it
}
withPool {
numbers.collectParallel { number ->
def className = "BoxUnboxTest${number}"
def name = "${className}.java"
def fileName = "${packagePath}/${name}"
def define = "public class ${className} {"
def content = new StringWriter()
content << head
content << define
content << body
println ' ---- '
println "now processing : $fileName"
println ' ---- '
new File(fileName).write(content.toString(), 'UTF-8')
assert new File(fileName).exists() == true
}
}
intとlongのボクシング・アンボクシングというコストのかかるようなテストを400個作ります。
build.gradle
apply plugin: 'java'
repositories {
mavenCentral()
}
dependencies {
testCompile 'junit:junit:4.8.2'
}
実行結果
C:\Users\mike\IDEA_Project\GradleSample>gradle test
:buildSrc:compileJava UP-TO-DATE
:buildSrc:compileGroovy UP-TO-DATE
:buildSrc:processResources UP-TO-DATE
:buildSrc:classes UP-TO-DATE
:buildSrc:jar UP-TO-DATE
:buildSrc:assemble UP-TO-DATE
:buildSrc:compileTestJava UP-TO-DATE
:buildSrc:compileTestGroovy UP-TO-DATE
:buildSrc:processTestResources UP-TO-DATE
:buildSrc:testClasses UP-TO-DATE
:buildSrc:test UP-TO-DATE
:buildSrc:check UP-TO-DATE
:buildSrc:build UP-TO-DATE
:compileJava UP-TO-DATE
:processResources UP-TO-DATE
:classes UP-TO-DATE
:compileTestJava UP-TO-DATE
:processTestResources UP-TO-DATE
:testClasses UP-TO-DATE
:test UP-TO-DATE
BUILD SUCCESSFUL
Total time: 6.945 secs
C:\Users\mike\IDEA_Project\GradleSample>
build.gradle
apply plugin: 'java'
repositories {
mavenCentral()
}
dependencies {
testCompile 'junit:junit:4.8.2'
}
test {
maxParallelForks = 3
forkEvery = 50
}
実行結果
C:\Users\mike\IDEA_Project\GradleSample>gradle test
:buildSrc:compileJava UP-TO-DATE
:buildSrc:compileGroovy UP-TO-DATE
:buildSrc:processResources UP-TO-DATE
:buildSrc:classes UP-TO-DATE
:buildSrc:jar UP-TO-DATE
:buildSrc:assemble UP-TO-DATE
:buildSrc:compileTestJava UP-TO-DATE
:buildSrc:compileTestGroovy UP-TO-DATE
:buildSrc:processTestResources UP-TO-DATE
:buildSrc:testClasses UP-TO-DATE
:buildSrc:test UP-TO-DATE
:buildSrc:check UP-TO-DATE
:buildSrc:build UP-TO-DATE
:compileJava UP-TO-DATE
:processResources UP-TO-DATE
:classes UP-TO-DATE
:compileTestJava UP-TO-DATE
:processTestResources UP-TO-DATE
:testClasses UP-TO-DATE
:test UP-TO-DATE
BUILD SUCCESSFUL
Total time: 7.943 secs
C:\Users\mike\IDEA_Project\GradleSample>
:buildSrc:test UP-TO-DATE
:buildSrc:check UP-TO-DATE
:buildSrc:build UP-TO-DATE
:compileJava UP-TO-DATE
:processResources UP-TO-DATE
:classes UP-TO-DATE
:compileTestJava UP-TO-DATE
:processTestResources UP-TO-DATE
:testClasses UP-TO-DATE
:test UP-TO-DATE
BUILD SUCCESSFUL
Total time: 7.025 secs
C:\Users\mike\IDEA_Project\GradleSample>gradle test
:buildSrc:compileJava UP-TO-DATE
:buildSrc:compileGroovy UP-TO-DATE
:buildSrc:processResources UP-TO-DATE
:buildSrc:classes UP-TO-DATE
:buildSrc:jar UP-TO-DATE
:buildSrc:assemble UP-TO-DATE
:buildSrc:compileTestJava UP-TO-DATE
:buildSrc:compileTestGroovy UP-TO-DATE
:buildSrc:processTestResources UP-TO-DATE
:buildSrc:testClasses UP-TO-DATE
:buildSrc:test UP-TO-DATE
:buildSrc:check UP-TO-DATE
:buildSrc:build UP-TO-DATE
:compileJava UP-TO-DATE
:processResources UP-TO-DATE
:classes UP-TO-DATE
:compileTestJava UP-TO-DATE
:processTestResources UP-TO-DATE
:testClasses UP-TO-DATE
:test UP-TO-DATE
BUILD SUCCESSFUL
Total time: 6.964 secs
C:\Users\mike\IDEA_Project\GradleSample>
