Mock static method with GroovyMock or similar in Spock

Question

First-timer here, apologies if I\'ve missed anything. I\'m hoping to get around a call to a static method using Spock. Feedback would be great

With groovy mocks, I

Answer 1

Here is how I solved my similar issue (mocking a static method call which is being called from another static class) with Spock (v1.0) and PowerMock (v1.6.4)

import org.junit.Rule
import org.powermock.core.classloader.annotations.PowerMockIgnore
import org.powermock.core.classloader.annotations.PrepareForTest
import org.powermock.modules.junit4.rule.PowerMockRule
import spock.lang.Specification
import static org.powermock.api.mockito.PowerMockito.mockStatic
import static org.powermock.api.mockito.PowerMockito.when

@PrepareForTest([YourStaticClass.class])
@PowerMockIgnore(["javax.xml.*", "ch.qos.logback.*", "org.slf4j.*"])
class YourSpockSpec extends Specification {

@Rule
Powermocked powermocked = new Powermocked();

def "something something something something"() {
    mockStatic(YourStaticClass.class)

    when: 'something something'
    def mocked = Mock(YourClass)
    mocked.someMethod(_) >> "return me"

    when(YourStaticClass.someStaticMethod(xyz)).thenReturn(mocked)

    then: 'expect something'
    YourStaticClass.someStaticMethod(xyz).someMethod(abc) == "return me"

   }
}

The @PowerMockIgnore annotation is optional, only use it if there is some conflicts with existing libraries