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Commit a7f4030f authored by Lenovo's avatar Lenovo
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final step with junit tester

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.idea/workspace.xml
View file @ a7f4030f
......@@ -4,7 +4,10 @@
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......@@ -36,6 +42,67 @@
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\ No newline at end of file
src/test/java/ParallelSummersTest.java 0 → 100644
View file @ a7f4030f
import static org.junit.jupiter.api.Assertions.*;
import org.example.SequentialSummer;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;
import org.example.data.TestData;
import org.example.parallelsummers.ParallelSummer0;
import org.example.parallelsummers.ParallelSummer1;
import org.example.parallelsummers.ParallelSummer2;
import org.example.parallelsummers.ParallelSummer3;
import org.example.parallelsummers.ParallelSummer4;
import java.util.Arrays;
import java.util.List;
class ParallelSummersTest {
/*
The ParallelSummersTest class is designed to assess the performance of other classes
that compute the count of prime numbers within a specified range.
The range starts from a variable named start and ends at a variable named end.
The data array contains the numbers within this range,
and the result variable stores the count of prime numbers calculated sequentially
*/
private static int start;
private static int end;
private static int[] data;
private static long result;
/*
The function initialize is designed to identify the range and sequentially compute the result.
*/
@BeforeAll
public static void initialize() {
start = 0;
end = 20;
data = TestData.createData(start, end);
result = SequentialSummer.sum(SequentialSummer.allPrimes(data));
}
/*
The testAll function is designed to compare the results of calculating the number of primes with five different parallel methods.
Each method requires a data array that contains a range of numbers and the number of threads to be used.
*/
private static void testAll(int threadCount) {
assertEquals(result, ParallelSummer0.sum(data, threadCount));
assertEquals(result, ParallelSummer1.sum(data, threadCount));
assertEquals(result, ParallelSummer2.sum(data, threadCount));
assertEquals(result, ParallelSummer3.sum(data, threadCount));
assertEquals(result, ParallelSummer4.sum(data, threadCount));
System.out.println(result);
}
/*
Invoke the testSingleThread function to call the testAll function using a single thread,
and then print the total duration in seconds it takes to execute the tasks in parallel.
*/
@Test
void testSingleThread() {
long start = System.currentTimeMillis();
testAll(1);
long end = System.currentTimeMillis();
System.out.println("1 Thread takes " + (end-start)/1000 + " seconds");
}
/*
Invoke the testTwoThread function to call the testAll function using two threads,
and then print the total duration in seconds it takes to execute the tasks in parallel.
*/
@Test
void testTwoThread() {
long start = System.currentTimeMillis();
testAll(2);
long end = System.currentTimeMillis();
System.out.println("2 Threads take " + (end-start)/1000 + " seconds");
}
/*
Invoke the testFourThread function to call the testAll function using four threads,
and then print the total duration in seconds it takes to execute the tasks in parallel.
*/
@Test
void testFourThread() {
long start = System.currentTimeMillis();
testAll(4);
long end = System.currentTimeMillis();
System.out.println("4 Threads take " + (end-start)/1000 + " seconds");
}
/*
Invoke the testEightThread function to call the testAll function using eight threads,
and then print the total duration in seconds it takes to execute the tasks in parallel.
*/
@Test
void testEightThread() {
long start = System.currentTimeMillis();
testAll(8);
long end = System.currentTimeMillis();
System.out.println("8 Threads take " + (end-start)/1000 + " seconds");
}
/*
Invoke the testSixteenThread function to call the testAll function using sixteen threads,
and then print the total duration in seconds it takes to execute the tasks in parallel.
*/
@Test
void testSixteenThread() {
long start = System.currentTimeMillis();
testAll(16);
long end = System.currentTimeMillis();
System.out.println("16 Threads take " + (end-start)/1000 + " seconds");
}
}
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