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12.18. Chapter Assessment

Write a function called int_return that takes an integer as input and returns the same integer.

==== from unittest.gui import TestCaseGui class myTests(TestCaseGui): def testOne(self): self.assertEqual(int_return(10), 10, "Testing that function int_return(10) returns 10") myTests().main()

Write a function called add that takes any number as its input and returns that sum with 2 added.

==== from unittest.gui import TestCaseGui class myTests(TestCaseGui): def testTwo(self): self.assertEqual(add(-2), 0, "Testing that add(-2) returns 0") self.assertEqual(add(6), 8, "Testing that add(6) returns 8") self.assertEqual(add(4), 6, "Testing that add(4) returns 6") myTests().main()

Write a function called change that takes any string, adds “Nice to meet you!” to the end of the argument given, and returns that new string.

==== from unittest.gui import TestCaseGui class myTests(TestCaseGui): def testThree(self): self.assertEqual(change("I'm Bob. "), "I'm Bob. Nice to meet you!", "Tests that change('I'm Bob. '') returns 'I'm Bob. Nice to meet you!'") self.assertEqual(change(""), "Nice to meet you!", "Tests that change() returns 'Nice to meet you!'") myTests().main()

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Write a function, accum, that takes a list of integers as input and returns the sum of those integers.

==== from unittest.gui import TestCaseGui class myTests(TestCaseGui): def testFourA(self): self.assertEqual(accum([5]), 5, "Tests that accum([5]) returns 5") self.assertEqual(accum([]), 0, "Tests that accum([]) returns 0") self.assertEqual(accum([2,4,6,8]), 20, "Tests that accum([2,4,6,8]) returns 20") myTests().main()

Write a function, length, that takes in a list as the input. If the length of the list is greater than or equal to 5, return “Longer than 5”. If the length is less than 5, return “Less than 5”.

==== from unittest.gui import TestCaseGui class myTests(TestCaseGui): def testFive(self): self.assertEqual(length([]), "Less than 5", "Tests that length([]) returns 'Less than 5'") self.assertEqual(length([2, 2]), "Less than 5", "Tests that length([2, 2]) returns 'Less than 5'") self.assertEqual(length([4, 4, 4, 3, 5, 6, 7, 8, 9]), "Longer than 5", "Tests that length([4, 4, 4, 3, 5, 6, 7, 8, 9]) returns 'Longer than 5'") self.assertEqual(length([1, 1, 1, 1, 1]), "Longer than 5", "Tests that length([1, 1, 1, 1, 1]) returns 'Longer than 5'") myTests().main()

You will need to write two functions for this problem. The first function, divide that takes in any number and returns that same number divided by 2. The second function called sum should take any number, divide it by 2, and add 6. It should return this new number. You should call the divide function within the sum function. Do not worry about decimals.

==== from unittest.gui import TestCaseGui class myTests(TestCaseGui): def testSixA(self): self.assertEqual(divide(4), 2, "Tests that divide(4) returns 2") def testSixB(self): self.assertEqual(sum(4), 8, "Tests that sum(4) returns 8") self.assertEqual(sum(2), 7, "Tests that sum(2) returns 7") self.assertEqual(sum(-6), 3, "Tests that sum(-6) returns 3") self.assertEqual(sum(0), 6, "Tests that sum(0) returns 6") myTests().main()

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