TIL1-Test.java

import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.api.mockito.PowerMockito;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;

@RunWith(PowerMockRunner.class)
@PrepareForTest(PeopleUtil.class)
public class PeopleTest() {
  
  private People people;
  
  @Test
  public void getNameTest() {
    // Mock PeopleUtil class over here
    PowerMockito.mockStatic(PeopleUtil.class);
    PowerMockito.when(PeopleUtil.getPerson()).thenReturn("TestName");
    
    people = new People();
    Assert.assertEquals("TestName", people.getName());
  }
}