Program: 113909
Project: 113909
Buggy source:
@Test public void testPreLaunchAsyncWithDebugUserAborts() throws Exception {
  ILaunchConfiguration configuration=mock(ILaunchConfiguration.class);
  String mode=ILaunchManager.RUN_MODE;
  IProgressMonitor monitor=mock(IProgressMonitor.class);
  RunTestView runTestsView=mock(RunTestView.class);
  IProject project=mock(IProject.class);
  Display display=mock(Display.class);
  when(mockedDelegate.preLaunchCheck(configuration,mode,monitor)).thenCallRealMethod();
  doNothing().when(mockedDelegate).checkMode(mode);
  when(mockedDelegate.getRunTestView()).thenReturn(runTestsView);
  when(runTestsView.canRun()).thenReturn(true);
  when(mockedDelegate.materializeForceProject(configuration)).thenReturn(project);
  when(mockedDelegate.getTestMode(configuration)).thenReturn(true);
  when(mockedDelegate.isProjectDebugging(project)).thenReturn(true);
  when(runTestsView.confirmAsyncTestRunWhileDebugging()).thenReturn(false);
  when(mockedDelegate.getDisplay()).thenReturn(display);
  doNothing().when(display).asyncExec(any(Runnable.class));
  boolean prelaunchResult=mockedDelegate.preLaunchCheck(configuration,mode,monitor);
  verify(mockedDelegate,times(1)).checkMode(mode);
  verify(mockedDelegate,times(1)).getRunTestView();
  verify(mockedDelegate,times(1)).materializeForceProject(configuration);
  verify(mockedDelegate,times(1)).getTestMode(configuration);
  verify(mockedDelegate,times(1)).isProjectDebugging(project);
  verify(runTestsView,times(1)).confirmAsyncTestRunWhileDebugging();
  verify(mockedDelegate,times(1)).getDisplay();
  verify(display,times(1)).asyncExec(any(Runnable.class));
  assertFalse(prelaunchResult);
}

Fixed version (ground truth):
@Test public void testPreLaunchAsyncWithDebugUserAborts() throws Exception {
  ILaunchConfiguration configuration=mock(ILaunchConfiguration.class);
  String mode=ILaunchManager.RUN_MODE;
  IProgressMonitor monitor=mock(IProgressMonitor.class);
  RunTestsView runTestsView=mock(RunTestsView.class);
  IProject project=mock(IProject.class);
  Display display=mock(Display.class);
  when(mockedDelegate.preLaunchCheck(configuration,mode,monitor)).thenCallRealMethod();
  doNothing().when(mockedDelegate).checkMode(mode);
  when(mockedDelegate.getRunTestView()).thenReturn(runTestsView);
  when(runTestsView.canRun()).thenReturn(true);
  when(mockedDelegate.materializeForceProject(configuration)).thenReturn(project);
  when(mockedDelegate.getTestMode(configuration)).thenReturn(true);
  when(mockedDelegate.isProjectDebugging(project)).thenReturn(true);
  when(runTestsView.confirmAsyncTestRunWhileDebugging()).thenReturn(false);
  when(mockedDelegate.getDisplay()).thenReturn(display);
  doNothing().when(display).asyncExec(any(Runnable.class));
  boolean prelaunchResult=mockedDelegate.preLaunchCheck(configuration,mode,monitor);
  verify(mockedDelegate,times(1)).checkMode(mode);
  verify(mockedDelegate,times(1)).getRunTestView();
  verify(mockedDelegate,times(1)).materializeForceProject(configuration);
  verify(mockedDelegate,times(1)).getTestMode(configuration);
  verify(mockedDelegate,times(1)).isProjectDebugging(project);
  verify(runTestsView,times(1)).confirmAsyncTestRunWhileDebugging();
  verify(mockedDelegate,times(1)).getDisplay();
  verify(display,times(1)).asyncExec(any(Runnable.class));
  assertFalse(prelaunchResult);
}