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• Change the name of the stub method testX() in the above to test_nMonthTillBD()and add code to make it look like the code below.

  Code Block
  class Test_PersonextendsTestCase { void test_nMonthTillBD() { Person peter =newPerson(9);// a person born in September. assertEquals("Calling nMonthTillBD(2).", 7, peter.nMonthTillBD(2)); assertEquals("Calling nMonthTillBD(9).", 0, peter.nMonthTillBD(9)); assertEquals("Calling nMonthTillBD(12).", 9, peter.nMonthTillBD(12)); } }

  Note that in the code for test_nMonthTillBD(), we have decided that we only need to know the birth month of a person in order to compute the number of months till the next birth day. As a result, we instantiate a Person object by passing only the birth month: new Person(9).

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