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[T4A6][W11-B2] Zhi Jiang #1667

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[T4A6][W11-B2] Zhi Jiang #1667

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41 changes: 41 additions & 0 deletions src/seedu/addressbook/common/UtilsTest.java
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Original file line number Diff line number Diff line change
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package seedu.addressbook.common;

import static org.junit.Assert.*;
import static seedu.addressbook.common.Messages.MESSAGE_INVALID_COMMAND_FORMAT;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;

import org.junit.Before;
import org.junit.Test;

import seedu.addressbook.commands.HelpCommand;
import seedu.addressbook.parser.Parser;

public class UtilsTest {

@Test
public void emptyInput_returnsCorrect() {
final Object obj = null;
assertTrue(Utils.isAnyNull(obj));
}

@Test
public void NonEmptyInput_returnsIncorrect() {
final Object obj = new Object();
assertFalse(Utils.isAnyNull(obj));
}

@Test
public void NonIdenticalInput_returnsCorrect() {
final ArrayList<Integer> lst = new ArrayList<Integer>(Arrays.asList(1,2,3,4,5));
assertTrue(Utils.elementsAreUnique(lst));
}

@Test
public void IdenticalInput_returnsIncorrect() {
final ArrayList<Integer> lst = new ArrayList<Integer>(Arrays.asList(1,1,3,4,5));
assertTrue(Utils.elementsAreUnique(lst));
}
}