iSharkFly-Docs/java-tutorials
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

BAEL-1422: added BDD style tests for generating random values using ThreadLocalRandom

Browse Source
This commit is contained in:
Tarang Bhalodia 2018-01-02 22:38:50 +05:30
parent f6f8f8debe
commit 036fabc9f7
1 changed files with 58 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
core-java/src/test/java/com/baeldung/threadlocalrandom/ThreadLocalRandomTest.java Normal file
View File

@ -0,0 +1,58 @@
package com.baeldung.threadlocalrandom;
import java.util.concurrent.ThreadLocalRandom;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
public class ThreadLocalRandomTest {
@Test
public void givenUsingThreadLocalRandom_whenGeneratingRandomIntBounded_thenCorrect() {
int leftLimit = 1;
int rightLimit = 100;
int generatedInt = ThreadLocalRandom.current().nextInt(leftLimit, rightLimit);
assertTrue(generatedInt < rightLimit && generatedInt >= leftLimit);
}
@Test
public void givenUsingThreadLocalRandom_whenGeneratingRandomIntUnbounded_thenCorrect() {
int generatedInt = ThreadLocalRandom.current().nextInt();
assertTrue(generatedInt < Integer.MAX_VALUE && generatedInt >= Integer.MIN_VALUE);
}
@Test
public void givenUsingThreadLocalRandom_whenGeneratingRandomLongBounded_thenCorrect() {
long leftLimit = 1L;
long rightLimit = 100L;
long generatedLong = ThreadLocalRandom.current().nextLong(leftLimit, rightLimit);
assertTrue(generatedLong < rightLimit && generatedLong >= leftLimit);
}
@Test
public void givenUsingThreadLocalRandom_whenGeneratingRandomLongUnbounded_thenCorrect() {
long generatedInt = ThreadLocalRandom.current().nextLong();
assertTrue(generatedInt < Long.MAX_VALUE && generatedInt >= Long.MIN_VALUE);
}
@Test
public void givenUsingThreadLocalRandom_whenGeneratingRandomDoubleBounded_thenCorrect() {
double leftLimit = 1D;
double rightLimit = 100D;
double generatedInt = ThreadLocalRandom.current().nextDouble(leftLimit, rightLimit);
assertTrue(generatedInt < rightLimit && generatedInt >= leftLimit);
}
@Test
public void givenUsingThreadLocalRandom_whenGeneratingRandomDoubleUnbounded_thenCorrect() {
double generatedInt = ThreadLocalRandom.current().nextDouble();
assertTrue(generatedInt < Double.MAX_VALUE && generatedInt >= Double.MIN_VALUE);
}
}