Add NullPointerException test on swapTwoLastTest
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@ -19,5 +19,6 @@ class CVDATPJUnitTest {
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Assertions.assertEquals("TENRANI", CVDATPJUnit.swapTwoLast("TENRAIN"));
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Assertions.assertEquals("A", CVDATPJUnit.swapTwoLast("A"));
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Assertions.assertEquals("", CVDATPJUnit.swapTwoLast(""));
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Assertions.assertNull(CVDATPJUnit.swapTwoLast(null));
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}
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}
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