performCoverageCheck task is skipped in cobertura plugin

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1

Hi,

The performCoverageCheck task in cobertura plugin is always skipped, even though i have valid test class file.I have included my test class in my source folder itself. Below the source below:
Can anyone help me on this.

build.gradle

buildscript {
repositories {
maven { url “https://plugins.gradle.org/m2/” }
}
dependencies {
classpath ‘net.saliman:gradle-cobertura-plugin:2.3.0’
}
}
repositories {
mavenCentral()
}
dependencies {
compile ‘junit:junit:4.10’
}
sourceSets {
main {
java {
srcDir ‘src’
}
}
}
cobertura {
coverageFormats = [‘html’]
coverageIgnoreTrivial = true
coverageReportDir = new File("$buildDir/reports/cobertura")
coverageSourceDirs =[‘src’]
}

src/CoberturaSample.java

package com.test.cobertura;

public class CoberturaSample {

public int add(int a,int b){
	return a+b;
}

}

src/CoberturaSampleTest.java

package com.test.cobertura;

import static org.junit.Assert.*;
import org.junit.Test;
import com.test.cobertura.CoberturaSample;

public class CoberturaSampleTest {
@Test
public void testAdd() {
int a=1,b=2;
int intexpected = a+b;
CoberturaSample objCobtSam = new CoberturaSample();
int actual = objCobtSam.add(a, b);

	assertEquals(intexpected, actual);
}

}

Many thanks in advance.