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Тестирование метода generateIntSequence #10
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| package myhomework; | ||
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| /** | ||
| * Created by Xenia Ivanushkina | ||
| * | ||
| * Проверка метода ClassToBeTested.generateIntSequence(int startingNumber, int itemsCount) | ||
| */ | ||
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| import org.junit.Assert; | ||
| import org.junit.Test; | ||
| import ru.odnoklassniki.ClassToBeTested; | ||
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| import java.util.List; | ||
| import java.util.Random; | ||
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| public class TestOfGenerateIntSequence { | ||
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| /** | ||
| * 1)Проверка корректной работы метода при передаче двух аргументов, | ||
| * сумма которых меньше максимально допустимого значения типа Int | ||
| */ | ||
| @Test | ||
| public void CorrectGenerationWhenSumIsLessThanIntegerMaxValue() { | ||
| int startingNumber = 8; | ||
| List<Integer> intSequence = ClassToBeTested.generateIntSequence(startingNumber, 14); | ||
| Assert.assertNotNull(intSequence); | ||
| Assert.assertFalse(intSequence.isEmpty()); | ||
| Assert.assertEquals(intSequence.size(), 14); | ||
| for (int result : intSequence) { | ||
| Assert.assertEquals(startingNumber++, result); | ||
| } | ||
| } | ||
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| /** | ||
| * 2)Проверка корректной работы метода при передаче двух аргументов, | ||
| * сумма которых равна максимально допустимому значению типа int | ||
| */ | ||
| @Test | ||
| public void CorrectGenerationWhenSumIsIntegerMaxValue() { | ||
| int startingNumber = 0; | ||
| List<Integer> intSequence = ClassToBeTested.generateIntSequence(startingNumber, Integer.MAX_VALUE); | ||
| Assert.assertNotNull(intSequence); | ||
| Assert.assertFalse(intSequence.isEmpty()); | ||
| Assert.assertEquals(intSequence.size(), Integer.MAX_VALUE); | ||
| } | ||
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| /** | ||
| * 3)Проверка корректной работы программы при передаче отрицательного значения itemsCount | ||
| */ | ||
| @Test | ||
| public void WhenitemsCountIsLessThanZero() { | ||
| try { | ||
| ClassToBeTested.generateIntSequence(0, -3); | ||
| Assert.fail(); | ||
|
Owner
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Лучше fail-message всё же указывать |
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| } catch (IllegalArgumentException ex) { | ||
| Assert.assertEquals("itemsCount must be greater than 0", ex.getMessage()); | ||
| } | ||
| } | ||
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| /** | ||
| * 4)Проверка корректной работы программы при передаче itemsCount=0 | ||
| */ | ||
| @Test | ||
| public void WhenitemsCountIsZero() { | ||
| try { | ||
| ClassToBeTested.generateIntSequence(5, 0); | ||
| Assert.fail(); | ||
| } catch (IllegalArgumentException ex) { | ||
| Assert.assertEquals("itemsCount must be greater than 0", ex.getMessage()); | ||
| } | ||
| } | ||
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| /** | ||
| * 5)Проверка корректной работы программы при передаче двух аргументов, | ||
| * сумма которых больше максимально допустимого значения типа int | ||
| */ | ||
| @Test | ||
| public void WhenSumIsMoreThanIntegerMaxValue() { | ||
| try { | ||
| ClassToBeTested.generateIntSequence(Integer.MAX_VALUE, Integer.MAX_VALUE - 1); | ||
| Assert.fail(); | ||
| } catch (IllegalArgumentException ex) { | ||
| Assert.assertEquals("can't generate an int greater than integer's max value", ex.getMessage()); | ||
| } | ||
| } | ||
| } | ||
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