Grails Unit Test Exception java.lang.Exception: No tests found matching grails test target pattern filter -

i starting learn grails testing , tried write first grails test.for this, created fresh grails project , created controller named com.rahulserver.somecontroller:

package com.rahulserver  class somecontroller {      def index() { }     def someaction(){      } } 

when created controller, grails automatically created com.rahulserver.somecontrollerspec under test/unit folder. here somecontrollerspec.groovy:

package com.rahulserver  import grails.test.mixin.testfor import spock.lang.specification  /**  * see api {@link grails.test.mixin.web.controllerunittestmixin} usage instructions  */ @testfor(somecontroller) class somecontrollerspec extends specification {      def setup() {     }      def cleanup() {     }      void testsomeaction() {         assert 1==1     } } 

when right click class, , run test, following:

testing started @ 5:21 pm ... |loading grails 2.4.3 |configuring classpath . |environment set test .................................... |running without daemon... .......................................... |compiling 1 source files . |running 1 unit test...|running 1 unit test... 1 of 1 --output initializationerror-- failure:  | initializationerror(org.junit.runner.manipulation.filter)  | java.lang.exception: no tests found matching grails test target pattern filter org.junit.runner.request$1@1f0f9da5     @ org.junit.internal.requests.filterrequest.getrunner(filterrequest.java:35)     @ org.junit.runner.junitcore.run(junitcore.java:138) no tests found matching grails test target pattern filter org.junit.runner.request$1@1f0f9da5 java.lang.exception: no tests found matching grails test target pattern filter org.junit.runner.request$1@1f0f9da5     @ org.junit.internal.requests.filterrequest.getrunner(filterrequest.java:35)     @ org.junit.runner.junitcore.run(junitcore.java:138)  |completed 1 unit test, 1 failed in 0m 0s .tests failed  |  - view reports in d:\115labs\grailsunittestdemo\target\test-reports error | forked grails vm exited error  process finished exit code 1 

so why failing?

edit

i using grails 2.4.3

the unit tests defined spock default:

void testsomeaction() {     assert 1==1 } 

should written as:

void "test action"() {     expect:       1==1 } 

see http://spockframework.github.io/spock/docs/1.0/index.html