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[BAEL-3211] Generate Integers within a range in Java (#7668)

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* [BAEL-3211] Generate Integers within a range in Java

* [BAEL-3211] Generate Integers within a range in Java

* Moved files from java-numbers to java-numbers-2
This commit is contained in:
Harsha Veeravalli
2019-08-29 06:46:47 +02:00
committed by maibin
parent 8d67d8496a
commit bfd84477ee
4 changed files with 136 additions and 0 deletions
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43
java-numbers-2/src/test/java/com/baeldung/numbersinrange/NumbersInARangeUnitTest.java Normal file
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package com.baeldung.numbersinrange;
import static org.junit.jupiter.api.Assertions.assertEquals;
import java.util.Arrays;
import java.util.List;
import org.junit.Test;
public class NumbersInARangeUnitTest {
@Test
public void givenTheRange1To10_andUsingForLoop_thenExpectCorrectResult() {
NumbersInARange numbersInARange = new NumbersInARange();
List<Integer> numbers = numbersInARange.getNumbersInRange(1, 10);
assertEquals(Arrays.asList(1,2,3,4,5,6,7,8,9), numbers);
}
@Test
public void givenTheRange1To10_andUsingIntStreamRange_thenExpectCorrectResult() {
NumbersInARange numbersInARange = new NumbersInARange();
List<Integer> numbers = numbersInARange.getNumbersUsingIntStreamRange(1, 10);
assertEquals(Arrays.asList(1,2,3,4,5,6,7,8,9), numbers);
}
@Test
public void givenTheRange1To10_andUsingIntStreamRangeClosed_thenExpectCorrectResult() {
NumbersInARange numbersInARange = new NumbersInARange();
List<Integer> numbers = numbersInARange.getNumbersUsingIntStreamRangeClosed(1, 10);
assertEquals(Arrays.asList(1,2,3,4,5,6,7,8,9,10), numbers);
}
@Test
public void givenTheRange1To10_andUsingIntStreamIterate_thenExpectCorrectResult() {
NumbersInARange numbersInARange = new NumbersInARange();
List<Integer> numbers = numbersInARange.getNumbersUsingIntStreamIterate(1, 10);
assertEquals(Arrays.asList(1,2,3,4,5,6,7,8,9,10), numbers);
}
}

35
java-numbers-2/src/test/java/com/baeldung/numbersinrange/RandomNumbersInARangeUnitTest.java Normal file
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package com.baeldung.numbersinrange;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
public class RandomNumbersInARangeUnitTest {
@Test
public void givenTheRange1To10_andUsingMathRandom_thenExpectCorrectResult() {
RandomNumbersInARange randomNumbersInARange = new RandomNumbersInARange();
int number = randomNumbersInARange.getRandomNumber(1, 10);
assertTrue(number >= 1);
assertTrue(number < 10);
}
@Test
public void givenTheRange1To10_andUsingRandomInts_thenExpectCorrectResult() {
RandomNumbersInARange randomNumbersInARange = new RandomNumbersInARange();
int number = randomNumbersInARange.getRandomNumberUsingInts(1, 10);
assertTrue(number >= 1);
assertTrue(number < 10);
}
@Test
public void givenTheRange1To10_andUsingRandomNextInt_thenExpectCorrectResult() {
RandomNumbersInARange randomNumbersInARange = new RandomNumbersInARange();
int number = randomNumbersInARange.getRandomNumberUsingNextInt(1, 10);
assertTrue(number >= 1);
assertTrue(number < 10);
}
}