package guitests;

import static org.junit.Assert.assertTrue;
import static utask.logic.commands.DeleteCommand.MESSAGE_DELETE_TASK_SUCCESS;

import org.junit.Test;

import utask.testutil.TestTask;
import utask.testutil.TestUtil;

public class DeleteCommandTest extends UTaskGuiTest {

//    @Test
//    public void delete() {
//
//        //delete the first in the list
//        TestTask[] currentList = td.getTypicalPersons();
//        int targetIndex = 1;
//        assertDeleteSuccess(targetIndex, currentList);
//
//        //delete the last in the list
//        currentList = TestUtil.removeTaskFromList(currentList, targetIndex);
//        targetIndex = currentList.length;
//        assertDeleteSuccess(targetIndex, currentList);
//
//        //delete from the middle of the list
//        currentList = TestUtil.removeTaskFromList(currentList, targetIndex);
//        targetIndex = currentList.length / 2;
//        assertDeleteSuccess(targetIndex, currentList);
//
//        //invalid index
//        commandBox.runCommand("delete " + currentList.length + 1);
//        assertResultMessage("The task index provided is invalid");
//
//    }

    /**
     * Runs the delete command to delete the person at specified index and confirms the result is correct.
     * @param targetIndexOneIndexed e.g. index 1 to delete the first person in the list,
     * @param currentList A copy of the current list of persons (before deletion).
     */
    private void assertDeleteSuccess(int targetIndexOneIndexed, final TestTask[] currentList) {
        TestTask personToDelete = currentList[targetIndexOneIndexed - 1]; // -1 as array uses zero indexing
        TestTask[] expectedRemainder = TestUtil.removeTaskFromList(currentList, targetIndexOneIndexed);

        commandBox.runCommand("delete " + targetIndexOneIndexed);

        //confirm the list now contains all previous persons except the deleted person
        assertTrue(personListPanel.isListMatching(expectedRemainder));

        //confirm the result message is correct
        assertResultMessage(String.format(MESSAGE_DELETE_TASK_SUCCESS, personToDelete));
    }

}

package guitests;

import static org.junit.Assert.assertTrue;
import static utask.logic.commands.DeleteCommand.MESSAGE_DELETE_TASK_SUCCESS;

import utask.testutil.TestTask;
import utask.testutil.TestUtil;

public class DeleteCommandTest extends UTaskGuiTest {

//    @Test
//    public void delete() {
//
//        //delete the first in the list
//        TestTask[] currentList = td.getTypicalPersons();
//        int targetIndex = 1;
//        assertDeleteSuccess(targetIndex, currentList);
//
//        //delete the last in the list
//        currentList = TestUtil.removeTaskFromList(currentList, targetIndex);
//        targetIndex = currentList.length;
//        assertDeleteSuccess(targetIndex, currentList);
//
//        //delete from the middle of the list
//        currentList = TestUtil.removeTaskFromList(currentList, targetIndex);
//        targetIndex = currentList.length / 2;
//        assertDeleteSuccess(targetIndex, currentList);
//
//        //invalid index
//        commandBox.runCommand("delete " + currentList.length + 1);
//        assertResultMessage("The task index provided is invalid");
//
//    }

    /**
     * Runs the delete command to delete the person at specified index and confirms the result is correct.
     * @param targetIndexOneIndexed e.g. index 1 to delete the first person in the list,
     * @param currentList A copy of the current list of persons (before deletion).
     */
    private void assertDeleteSuccess(int targetIndexOneIndexed, final TestTask[] currentList) {
        TestTask personToDelete = currentList[targetIndexOneIndexed - 1]; // -1 as array uses zero indexing
        TestTask[] expectedRemainder = TestUtil.removeTaskFromList(currentList, targetIndexOneIndexed);

        commandBox.runCommand("delete " + targetIndexOneIndexed);

        //confirm the list now contains all previous persons except the deleted person
        assertTrue(personListPanel.isListMatching(expectedRemainder));

        //confirm the result message is correct
        assertResultMessage(String.format(MESSAGE_DELETE_TASK_SUCCESS, personToDelete));
    }

}

Fix codestyle